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Extrusion systems.

PRODUCT LINES REVIEWED

ADDEX INC., USA

Complete blown film lines (up to nine layers), dies, air rings, automatic gauge control, IBC systems, oscillating hauloffs, winders, feedscrews and extruders. Patented Internal Gauge Control (IGC) uses air from the IBC to automatically correct film-thickness variations. Compact Gauge Band Randomizer (GBR) oscillating hauloff is suitable for retrofits with low ceiling height. REDi (regular division) die technology yields 20-25% lower film thickness variation.

Superwind surface/center assist winder with reverse winding capability winds up to 58-in. diam. rolls.

ADVANCED EXTRUDER TECHNOLOGIES

Supplies Advantage series single-screw extruders and systems for pipe, profile, foam, film and sheet, inline wood/plastic compounding and extrusion, and inline thermoforming, reclaim and hot melt.

AL-BE INDUSTRIES, INC.

Standard line of single-screw extruders (0.75- to 2.5-in. diam.) and custom-designed units up to 8 in. All have bimetallic-lined barrels with up to 32:1 L/D. High-capacity thrust housings provide long bearing life.

Auxiliary equipment includes vacuum sizers and cooling tanks, hauloffs, cutoff saws, coilers, and dies for pipe, tubing, pelletizing, and custom profiles.

ALPHA MARATHON TECHNOLOGIES, INC.

Offers direct extrusion in-line air bubble forming machine for making bubble wrap from film widths to 124 in. available with line speeds up to 100 m/min; and a laminating machine with the versatility to produce laminations of four materials simultaneously: foam, poly, coated paper, coated aluminum foil.

Single-screw extruders from 1- to 6-in. diam. Features include air or water cooling, triple reduction gear reducers, bimetallic barrels, grooved or smooth feed sections.

Monolayer and coextrusion spiral dies up to five layers feature Flow Mixing Channels for greater thermal dispersion, lower residence times, and minimal gauge variations. Stationary, rotating or oscillating systems available.

Low-pressure modular stack die (2000-3000 psi) for coextrusion applications of five-plus layers features dual proportional heart design and diamond-type mixer. Downstream equipment includes top nips, secondary-nip assemblies, surface winders and horizontal film oscillators (HFO).

Top-nip assembly options include collapsing frames and gusset assemblies. Surface winders range from manual to fully automated models with line speeds to 500 ft/min.

ALTECH USA INC.

Japanese trading company offers wood/plastic extrusion equipment from CTE Co. Ltd. in Japan. CTE's technology has one short and one long screw side by side, changing from a twin-screw kneader to a single-screw extruder.

AMERICAN EXTRUSION SERVICES INC.

Offers single-screw extruders for pipe/profile, sheet and cast film, tandem foam lines, and dual-diameter reclaim extruders.

AMERICAN JET STREAM, INC.

From Plastimac of Italy complete blown film extrusion systems for HDPE, LLDPE, and LDPE.

AMERICAN KUHNE INC.

Horizontal, vertical and all types of co-extruders for all extrusion applications.

Complete extrusion lines for tubing, pipe, profile and sheet. Rubber and silicone extruders for all applications except tires. Ram Stuffer extruders for light bulk density reclaim reprocessing. Steward barrier screws for high-quality, high-output performance for all resins and extrusion processes. Screw sizes from 0.75 to 10 in. in any L/D for vented and nonvented applications.

AMERICAN MAPLAN CORP.

Twin-screw extrusion systems for rigid PVC pipe, siding and profiles including three conical and six parallel twin-screw extruders: Con 40, BEX 54 and DSK 62 conicals; and BEX 92, TS 100/2, TS 92, TS 110, TS 135 and BEX 168 parallels.

Single-screw extrusion systems for polyolefins with extruders from 45 to 220 mm with 30:1 L/D. Extrusion output rates from 100 to 5000 lb/hr. Natural fiber composite extrusion systems available with all extruder types. Tooling for PVC and polyolefin pipe from 0.5 to 63 in.

Also complete tooling for siding, profile, fence, deck and natural fiber composites. Complete downstream systems available for all product lines. Complete new or rebuilt barrel and screw program.

Sheet line systems offer a variety of roll stack configurations and can be designed for the complete range of thermoplastic polymers, engineered polymers and natural fiber composites, including PET, PE, PP, natural

fiber composites, PC, PS and PVC.

AMUT NORTH AMERICA

Counterrotating parallel twin-screw extruders for PVC and single-screw extruder systems for pipe, tubing, profiles, sheet and calendering. New extrusion process for PEXb (silane-crosslinked PE) small-diameter pipe.

ASHLAND-TECH INC.

Complete extrusion lines for corrugated pipe with patented corrugators and dual-wall tooling systems; blown film systems with in-line bagmaking and converting equipment coupled with automatic packaging; and scrap reclaim and pelletizing systems. Custom-designed tooling and extruders from 0.75- to 18-in. diam.

B&P PROCESS EQUIPMENT & SYSTEMS

See Compounding/Mixing Systems.

LUIGI BANDERA SPA COSTRUZIONI MECCANICHE

Complete multilayer lines for PET sheet, blown film, cast film, pipe and profiles.

BATTENFELD GLOUCESTER ENGINEERING CO., INC.

Complete extrusion systems for monolayer and multilayer blown film, cast film, rigid sheet, and foam sheet. Also extrusion coating, control systems, and in- or out-of-line bagmaking systems. Reclaim systems and granulators, downstream equipment, winders, printers and gravimetrics.

BAUSANO GROUP SPA

Supplies parallel twin-screw extruders and complete systems for extruding "Polywood" sheet or profiles or compounders of thermoplastics mixed with fillers such as sawdust, rice hulls and paper.

BERLYN EXTRUDERS INC.

Single-screw extruders from 0.75- to 15-in. diam. and all L/D ratios; filters and screen changers, including slide-plate, continuous and automatic types; strand dies, water baths, air strippers and pelletizers, and underwater pelletizing systems to 6000 lb/hr; melt gear pumps; flat sheet lines to 108 in. width and all thicknesses. Profile lines for pipe, tubing and complex structural sections.

Single-screw recycling extrusion systems consist of granulators, vertical screw feeders, 50:1 barrels, dual-venting systems, slide-plate screen changers and/or continuous filters, and strand and underwater pelletizers. Production rates from 100 to 10,000 lb/ hr. PLC-controlled systems available.

BERSTORFF

Corotating, twin-screw compounding extruders and pelletizing systems; twin-screw compounding with direct in-line sheeting of filled and reinforced plastics; single- and twin-screw extruders for devolatilization and specialty applications; and single-screw profile extrusion systems from commingled reclaim. (See Compounding/ Mixing Systems.)

BLACK CLAWSON CONVERTING MACHINERY

See Davis-Standard Film & Coating Systems.

BOSTON MATTHEWS INC.

Extruders, downstream equipment and complete lines for tubing and profile. Products include single-screw extruders and coextruders (0.75 to 6 in.), caterpillar takeoffs (rugged direct-drive machines such as the Farris Puller), automatic traveling saws including servo-driven models, rotary cutters, vacuum calibration tanks, dry calibration units, spray baths and coilers (single-and twin-shaft).

C.W. BRABENDER INSTRUMENTS INC.

Laboratory single-screw extruders come in 0.75- and 1.25-in. barrel diam. with L/Ds from 10:1 to 30:1. Extruders easily attach to company's Plasti-Corder torque rheometer drive or Prep Center drive and can measure processing conditions for various polymers.

The 0.75-in. Independent table-top extruder is a compact, self-contained system with a 1-hp motor and worm gear reducer.

Twin-screw extruders available in designs, which include the 42-ram parallel counterrotating high-shear miniature compounding design with output rates to 3.6 kg/ hr; conical model in counter or corotating 42 mm, 17:1 L/D ratio for extrusion rates to 20 kg/hr; and 25-mm segmented twin-screw extruder with L/D ratios from 16:1 to 48:1.

Wide selection of screws, dies, and takeoff equipment available.

BRAMPTON ENGINEERING INC.

Complete blown film systems (conventional and AquaFrost) including all components for turnkey installations. Products include extruders, dies of all sizes and up to 10 layers, air rings, IBCs, bubble cages, stationary hauloffs, vertical or horizontal oscillating hauloffs, winders (center turret and surface), fully computerized line controls, and gravimetric blenders, feed systems, and l-Flex gauge control.

Single-screw extruders for blown film, pipe, profile, sheet, and wire/cable with 1- to 8-in. diam. and L/Ds to 40:1.

BREYER GMBH MASCHINENFABRIK

Offers single- and twin-screw extrusion lines for sheet, film, pipe, and tube.

BRUCKNER INC.

Offers biax film stretching lines for PP, PET, nylon, PS, PE, PLA and PVC. Also offers specialty LISIM simultaneous stretching systems for PET and PP. Formtec business unit makes extrusion equipment and production lines for rigid film and sheet and also provides CPP production lines.

Bruckner ServTec unit focuses on all customer service needs as well as machine upgrades. Tech Center also has a simultaneous stretching line available for rent.

CABLE & TUBING SOLUTIONS LTD.

Offers complete systems from Maillefer SA for a wide variety of plastics and composite pipes.

CARNEVALLI & ClA LTDA

Brazilian maker of complete blown film lines, flexo printers, and recycling systems.

CDL TECHNOLOGY INC. CROWN MACHINE DIV.

Twin- and single-screw extruders for sheet, profile and reclaim.

CENTURY EXTRUSION DIV. OF CPM

See Compounding/Mixing Systems.

CENTURY/3 PLUS, LLC DIV. OF CENTURY, INC.

Offers a line of multi-screw "ring extruders" from 3+ Extruder GmbH in Germany. Machines consist of a circle of 12 intermeshing screws that corotate around a static core. They provide low-pressure dispersive and distributive mixing. Resin on the outside of the ring of screws travels in one circumferential direction, while resin on the inside of the ring travels in the other direction.

CINCINNATI EXTRUSION INC.

This Austrian firm supplies single-screw extruders, which includes Alpha series for general profile extrusion, 45 and 60 mm diam. with smooth, grooved, or fine-grooved feed throats. Proton series in specialized versions for pipe, profile and sheet; 45 to 150 mm; smooth or grooved throats, outputs of 66 to 3300 lb/hr. Proton G-Torq series of compact, high-torque, direct-driven machines with low noise and motor mounted at 90-degree angle under barrel; L/Ds of 30 to 36:1.

Twin-screw extruders include Argos parallel series for PVC pipe, profile and sheet. Argos EA series for PVC window profiles, 72 and 93 ram. Konos conical series of 38 to 72 mm exit diam. FiberexT conical and parallel series for wood composites. Six conical models of 58 to 92 mm and parallel units up to 135 mm for outputs up to 2750 lb/hr.

Cincinnati Extrusion also supplies pipe die heads for PVC and other thermoplastics (up to 800 mm OD) and complete systems fur PVC windows, other profiles, and tubing.

CINCINNATI MILACRON EXTRUSION SYSTEMS

Supplies the following extruders:

* Conical counterrotating twin-screw extruders (35, 50, 55, 65, 80, 86, 92 and 96 mm sizes).

* Parallel counterrotating twin-screw extruders (93, 115, 140 and 172 mm sizes).

* Corotating twin-screw extruders for woodflour plastics composite applications (80, 100, 125 and 160 mm sizes).

* Single-screw smooth-bore extruders (0.75 through 12 in.).

* Single-screw grooved-feed extruders (45 through 150 mm).

Company also offers custom screw designs for both single- and twin-screw (for many makes and models of extruders), advanced wear solutions for extrusion barrels and screws, gear box rebuilds and retrofits, aftermarket services such as retrofit packages and equipment upgrades, machine audits for improved productivity, onsite service technicians, control repair and upgrades, used extruder refurbishment, and extrusion equipment training programs.

CITSCO INC.

Offers new series of small extruders for laboratory use and production of medical tubing from Gimac of Italy. Machines come in 12 to 44 mm diam. Screws and barrels are nitrided. Barrels can have water-cooled feed zones. The 12-mm model has a 24:1 L/D and maximum screw speed of 100 rpm as standard.

CONAIR

Company offers downstream equipment for pipe, tubing and profiles, including complete extrusion systems with product tooling, sizing, cooling, cutoff and product-handling equipment.

Individual inline components include the high-intensity spray cooling tank efficient at removing heat from pipe and heavy profiles, MT and MTP vacuum sizing tanks for precise sizing of tubing and profiles, MSVP calibration table, MCB spray and flood cooling tanks, v-belt and cleated pullers, and positional-based servo rotary-knife cutters and traveling saws with optional servo table travel for precision cut-off of large profiles and wood composites.

MedLine puller/cutter has advanced servodrive and control technology to give extruders of small-diam, medical tubing (including heart and brain catheters) the highest level of precision along with rugged reliability and user-friendly operation.

Other specialty equipment includes servodriven tubing coilers, dump tables, takeaway conveyors, and drinking-straw flex machines and wrappers.

COPERION CORP.

Engineered systems for polymer processing based on Waeschle bulk-handling knowledge and Werner & Pfleiderer process designs from engineering studies to full turnkey facilities. Offers reciprocating single-screw extruders and/or corotating intermeshing twin-screw extruders for compounding thermoplastics and thermosets. (See Compounding/Mixing Systems.)

CORELCO

Makes downstream tooling for netting and corrugated pipe, including double-wall pipe up to 10-in. in diam.

CORMA INC.

Corrugated pipe or tubing systems include 12 standard models for l-ram I.D. to 3000mm O.D. pipe. Systems produce single-wall, double-wall, triple-wall and ribbed pipe for electrical conduit, automotive, medical, drainage, sewers and culverts, as well as after coolers, perforators, slitter, cut-off and high-speed winders.

Offers extruders with corrugating lines. Also in-line cuff systems for single-wall, double-wall, triple-wall and rib pipe.

COSTARELLI USA INC.

Mono-layer and extrusion lines for pipe, including a complete recycling system to convert 100% post-consumer recycled plastic into 60-in. diam. drainage pipe.

CUSTOM DOWNSTREAM SYSTEMS (CDS)

Company designs and manufactures complete line of downstream machinery for extrusion applications related to pipes, profiles and tubes. Equipment includes cooling tanks and tables; belt, cleat, pipe, slab and roll pullers; saws and cutters; embossing stands, brush/scouring tables, annealing tables, and cutter-punch units; and tilt and collection tables and coil winders.

Customization for all production requirements from design through to delivery and maintenance of machinery.

Offers a large selection of brand-name and custom-fabricated replacement parts, and also provides refurbishing, maintenance and repair services of pre-owned equipment.

DAVIS-STANDARD FILM & COATING SYSTEMS

High-capacity extrusion lines for blown film, cast film, and extrusion coating in mono and coextrusion systems with custom designed dies, screws, and line equipment for a wide range of products. Extrusion coating and laminating lines produce flexible packaging, aseptic packaging, liquid packaging, tube laminates, and industrial products. Cast film lines produce coextruded stretch wrap, multilayer packaging films, high-barrier structures to nine layers, and embossed film. Blown film systems produce simple monolayer film for bags, high-speed stretch wrap, multilayer barrier packaging and PVDC film. CMR and EPIC control systems for single or multiple line control on new systems or as retrofits.

DAVIS-STANDARD LLC

Customized extruders, feed screws, drives and controls for wire and cable, pipe, profile, medical tubing, sheet, blown and cast film, blow molding, elastomers, compounding, extrusion coating, reclaim/recycle, and fiber. Also systems for high-voltage wire and cable, melt-blown nonwovens, and high-throughput BOPP, OPS, and PET film.

Complete systems include single-screw extruders to 12-in. diam. including grooved-barrel, vented-barrel, tiltable, and tandem machines and vertical extruders to 3.5-in. diam. Downstream equipment for blown and cast film, sheet, laminations, pipe, profile, fibers, and compounding. Underwater pelletizing lines. Feedblocks, dies and other coextrusion custom-designed equipment for sheet and blown film.

Custom single-screw extruders from 0.75- to 15-in. diam. in L/Ds of 24:1 to 48:1, air- or water-cooled versions, vented or non-vented. Precision laboratory and mid-sized Killion production equipment available from small bench model extruders to complete systems with vacuum tanks, water troughs, pullers, winders and cutters.

Reprocessing extruders in single- and dual-diam, configurations for handling materials from bulk densities as low as 0.5 lb/cu ft to hot melts.

Muitilayer barrier film and sheet coextrusion systems and custom-designed recycling extruders to handle low-bulk-density scrap. Blown film dies, rotators, and winders range from one to five layers in sizes up to 86-in. diam.

For rigid PVC profiles, conical and parallel twin-screw Gemini machines are rugged and easy to operate and maintain.

Flexible PVC medical tubing systems provide outputs to 1000 fpm; ultra-precise I.D./O.D. ovality; screw designs for high product clarity; and continuous ultra-low-tension coiling.

Epic III controls incorporate dual-thermocouple control and responsive closed-loop line control. Graphical interface features pictorial control screens, trending, complete line documentation, data acquisition, SPC, and networking capabilities.

Specialized technical services, modernization of machinery and controls, and rebuilding of all makes of extruders with custom packages to improve output and performance.

Offers Merritt line of single-screw extruders from 0.75 to 12 in., including MM series (0.75 to 1.25 in.) for medical and coextrusion uses and MX heavy-duty series with water or air cooling, triple-chamber feed throat and stay-open clamp flange. Top-of-the-line MX Super Cool air-cooled extruders have high-capacity base-mounted blowers for maximum cooling efficiency. Low-cost Vanguard series are heavy-duty, air-cooled models.

Complete Black Clawson processing lines for fiat or embossed cast film, stretch wrap, extrusion coating and lamination; oriented film and oriented-tape and fiber.

Single-screw extruders from 2.5- to 12-in. diam. with standard L/Ds of 24:1 and 30:1. Accessories include film and coating dies, primer coaters and dryers, film winders, unwinds, slitter/rewinders, and coextrusion systems for cast film and extrusion coating. All systems available with microprocessor controls. Supervisory control system available.

Pre-engineered products include QFP extrusion coating and laminating line, and universal cast film lines. Suited for quick installation and start-up. (See Compounding/ Mixing Systems.)

DELTAPLAST MACHINERY LTD.

Single- and twin-screw extruders for profile, pipe, composite, compounding, blow molding, sheet, reclaim and wire and cable. Single-screw extruders range in size from 0.75 in. to 8 in. with various L/D ratios available. Twin-screw units range in size from 65 to 135 mm with L/D ratios of 23 or 33.

Also a line of co-extruders and custom machinery and downstream equipment, as well as replacement screw and barrels.

DIAMOND AMERICA CORP.

Manufacturer of single-screw extruders from 0.75 in. up to and including 6 in. Also offers new and rebuilt screws, new barrels, relined barrels and dies. Company also rebuilds and reconditions extruders.

DOLCI EXTRUSION SRL

Specialized extrusion lines for cast PP film and stretch film, including high-tech coextrusion.

DROSSBACH N.A. INC.

Extruders and complete extrusion lines, specializing in corrugating equipment for pipe and tubing.

DUAL SPIRAL SYSTEMS INC.

Manufactures high-quality extrusion dies and equipment for blown film, pipe, tubing, coating and related industries. Specializes in multilayer coextrusion dies, feedscrews and components.

DSS dies divide the polymer flow from each extruder into two layers for increased productivity, improved film properties, and reduced waste due to decreased thickness tolerances. Dies and feedscrews are custom-designed.

Company also manufactures barrels, screenchangers, stationary and rotating/oscillating blocks, die carts, cylindrical and stackable dies up to 10 layers (20 layers using DSS layer technology). Dies are coated with DSS K05 melt fracture elimination coating, which has a coefficient of friction four times less than traditional chrome or nickel plating. DSS K05 can also be retrofitted onto existing dies, feedscrews, or any component that would benefit from a low friction surface.

ENTEK EXTRUDERS

E-Max line of twin-screw extruders from 27-133 mm with six different sizes and in combination with a variety of tooling, downstream, production monitoring and process control equipment. Extruders feature high throughput and wear resistant components that can process highly abrasive materials with minimal downtime.

Offers turnkey production systems, twin-screw extruders and components. Specializes in extrusion of natural fiber-plastic composites (wood decking), pelletizing, custom compounding, specialty sheet lines, packaging and other markets including food and medical applications. Turnkey expertise helps in establishing complete plant-wide operations.

THE ENTWISTLE CO.

Lines include vertical and Verta-turret extruders for coextrusion and striping; complete extrusion systems to 6-in. diam. for insulating and jacketing wire and cable with thermoplastic, thermoset, and fluoropolymer compounds, and for foam/coax extrusion; fiber-optic extrusion coating lines; single and multilayer sheet lines with roll widths to 42 in.; spiral winders for hose reinforcement; automatic crossover wire dual take-ups and coilers; patented dual flyer pay-offs; shaftless pay-offs and take-ups to capacities of 30,000 lb; dual-drum, belt wrap, or open types of capstans; caterpillars for heavy-duty applications; insulation patching presses; and systems for re-reeling, recoiling, length measurement, and spark testing.

Supplies complete line layouts, individual machine layouts and utility connections, complete interconnection drawings with wires numbered, sized, and all terminal connections numbered.

ESI-EXTRUSION SERVICES, INC.

Designs and manufactures automated downstream extrusion equipment and systems. Product line includes servo- and air-actuated fly-knife cutters, fixed and traveling cut-off saws, Accupunch inline fabrication units, smooth and cleated belt pullers, conveyors and blow-off tables, vacuum sizing tanks, hot-water annealing and vacuum calibration tanks, spray and flood-cooling tanks (including conveyorized), wind-ups, let offs, surface finishing equipment, inline drilling and routing equipment, automatic stacking (palletizing) equipment and custom-built equipment.

ESI-Extrusion Services supplies complete engineered line system services including all extrusion equipment, overall line engineering and layout, on-site setup supervision, tooling and equipment run-in, startup and training.

FACTS, INC.

Distributes extruders, dies and downstream equipment for PEX pressure pipe and in-floor heating from APSwissTech of Switzerland. Facts Inc. also makes extrusion control systems.

FARREL CORP.

Custom-designed, heavy-duty single-screw extruders for homogenizing and extruding in strip, strand or pelletized form. Specializes in large machines up to 26-in. diam. with production rates as high as 60,000 lb/hr. Hot-melt extruders, cold-feed extruders, and machines accepting discharge from batch or continuous mixers.

Also retrofits for LDPE extruders with vents for devolatilization.

FLENDER CORP.

Offers A-Line single-screw extruders from 2.5 to 10 in. diam. with high torque and low noise.

Also offers Motox-N drive motors.

FUTURE DESIGN INC.

Saturn dual-lip air rings come complete with interchangeable lipsets to suit dies from 0.5 up to 100 in. Supplies new bubble glide guiding system and new Escort haul-off system along with low-pressure spiral dies, stationary and oscillating die stands, screen changers, bubble enclosures, bubble width controls, extruders, feed screws, air-bearing and Teflon collapsing frames, top-nip assemblies, and surface winders. North American agent for Martignoni Elettrotecnica srl corona dual-side treaters.

Engineering, planning, servicing, and rebuilding of equipment as well as several Saturn programs: Saturn upgrade program and Saturn Air Ring Exchange program.

GHIOLDI SRL

Produces mono- and muitilayer blown film lines for up to seven layers, as well as mono- and multilayer cast film and extrusion coating lines. Also offers compact blown-film lines for tubular PE film and bubble wrap.

G.F. GOODMAN & SON, INC.

Downstream machinery for pipe, tubing, and profile extrusions from less than 0.010 to 8 in. O.D. Included are vacuum-sizing, spray-quench and cooling tanks. Range of pinch-roll and caterpillar pullers with Synchro-Pull double-sided timing belt drive equipped with a-c and d-c flux vector, or servo motor and drive system.

On-demand rotary knife cutters with choice of electromagnetic, pneumatic, heavy-duty hydraulic, Vac-U-Torq vacuum clutch/ brake or servo system and flywheel cutters for cutting extrusions both on- and off-line. Traveling saws for on-line cutting of rigid extrusions.

Cutters and pullers available in combination of custom engineered systems for specific requirements. Discharge conveyors available with or without air ejection to sort cut lengths. Full line of Bondabelt replacement caterpillar belts for any make or model puller.

GREINER EXTRUSION USA INC.

Downstream tooling, calibrating, guillotine cutting and cooling equipment for PVC window, fence, decking, foam profiles and sheet.

HARREL, INC.

Small to medium-size single-screw extruders (to 4.5 in.) feature rugged construction, digital drives (accurate to 0.001%), and Digipanel microprocessor controls. Geartruders are a combination of extruder, high-precision gear pump, digital drive, and Digipanel microprocessor controller, which coordinates extruder and gear pump operation.

Specializes in complete prepackaged extrusion systems for tubing, profile, and sheet. Patented Tubetrol system controls both O.D. and I.D. of tubing or pipe of any size or style, whether single or multilumen, straight tubing or bump tubing. Sheetrol systems control both machine direction and cross machine profile of extruded sheet.

Downstream accessories from the company include Rollerpuller no-clutch (servo driven) cutters and a line of classifying conveyors.

HOSOKAWA ALPINE AMERICAN

Complete blown film systems from monolayer to 9-layer co-extrusion. Extruder sizes range from 50 mm to 120 mm with outputs to 1700 lb/hr. Typical resin runs are PE, plastomers, PE EVOH, EVA and PA. Horizontal oscillating nip and optimized film winder produce high quality rolls to 60 in. O.D. in LFW up to 140 in.

Offers two automatic gauge control systems: POS and AutoTherm for flat wrinkle-free film. POS is suitable for retofit on existing lines.

Offers film enhancement with new Machine Direction Orienter. Machine direction oriented packaging films provide added barrier, stiffness and film convertibility along with many additional film enhancing properties.

Company specializes in turnkey installations.

HPM A TAYLOR'S CO.

Complete customized single-screw extruders from 1.5 to 15 in. diam. in L/Ds of 12:1 to 50" 1, air- or water-cooled, vented or nonvented for sheet, pipe, profile and tubing, high-speed color compounding, recycle and scrap reclaim.

In-house feedscrew design and manufacturing of patented Wave (double and triple) feedscrews.

Custom sheet extrusion systems for a variety of thicknesses (up to 1.5 in.) and widths (up to 33 ft) in four different styles. Multilayer barrier sheet systems up to 11 layers.

Multiple roll sheetline system--36 in. rolls all nipping. High-output sheetline systems up to 15,000 lb/hr. High PLI systems (to 2500 PLI). Systems offer such features as standard three-roll vertical or with multiple rolls, horizontal fixed position or with orbiting first and third rolls (patented). VHSL system for thick sheet with 180[degrees] articulating top roll, multiroll caliper system and three-roll (top/bottom) rotary embossing system.

EPM PLC-based supervisory control system features distributive IO, main 17 in. HMI and redundant 12 in. PC controls. Graphic interface for complete system documentation and control. Remote access for offsite service and viewing. In-house trucking and installation crews for turnkey applications.

Scrap and reclaim extruders available with tangential feedsection, crammer feeders or ram stuffer units.

ICMA SAN GIORGIO SPA

See Compounding/Mixing Systems. Ikegai America Corp

PCM series of intermeshing, high-speed twin-screw extruders utilize segmented screws. Barrel uses a building-block system so that L/D ratio is easily adjustable. Screws are either corotating or counter-rotating. Screw diam. from 29 to 125 mm. (See Compounding/Mixing Systems.)

ITALIAN TRADE COMMISSION

Information and catalogues on Italian extrusion and coextrusion lines for tubes, pipe, profiles, film, sheet, filament, strapping, tape, pelletizing, and cable coating. Single- or twin-screw extruders available in sizes from 1- to 10-in. diam. and L/Ds from 12:1 to 35:1.

JDP MANUFACTURING INC.

Broad line of downstream extrusion equipment for pipe, general profiles, window profiles, and plastic fencing.

For PE, PVC, CPVC, and other extruded pipes with products to handle through 54 in. O.D. pipe sizes: vacuum-sizing tanks, extension cooling tanks, water-recirculation systems, pullers, saws, guillotines, coilers, dump tables, custom processing machines, bellers for both solvent-weld and Reiberstyle gaskets.

For window profiles and fencing company offers vacuum-calibration tables, vacuum tanks, cooling tanks, pullers, saws, puller/saw combinations, dump tables, and packaging tables.

For general profiles company offers vacuum tanks, cooling tanks, water-recirculation systems, pullers, saws, and custom machines.

KIEFEL INC.

Blown film extrusion systems for up to nine-layer structures of HDPE, MDPE, LDPE, LLDPE, EVA, ionomer, PP, nylon, EVOH, PET and metallocenes. Complete systems for single- or multilayer blown film at high outputs with superior film strength and uniform film thickness or roll quality. Extruders can be grooved-feed or smooth bore from 30-to 120-mm diam.

Die sizes from 80- to 900-mm diam. Air rings with single or dual lip. Internal bubble cooling available on dies of 120-900 mm. Bubble stabilizing cages in a range of sizes. Take-offs either stationary or oscillating; winders can be surface, center or gap. Takeoffs and winders with max. layflat widths of 800-3600 mm.

Accessories include blenders, air chillers, treaters, web guides, gravimetric extrusion-control systems, automatic transverse-direction gauge-profile control system and layflat-width control systems. Trade-ins and rebuilds. Full turnkey facilities. Company is part of Bruckner.

KOBELCO STEWART BOLLING, INC.

Represents Kobe Steel and offers heavy-duty, single-screw, hot-melt and compounding extruders in screw sizes from 31/2- to 20-in. diam., L/Ds to 30:1, and gear pump extrusion system. Extruders can be heated electrically or with steam or oil, and can be cooled by air or water. Full range of dies and tooling. (See Compounding/Mixing Systems.)

KRAUSSMAFFEI CORP.

Counterrotating twin-screw extruders in double-conical and parallel-screw configurations for PVC extrusion of pipe, window lineals, siding custom profiles, fence, etc. Parallel line features 26 L/D ratio for high specific output rates and improved melt quality. High-inventory pipe tooling and vacuum and spray tanks offered. Controls include C4 microprocessor system for total extrusion line control. Company has teamed up with window tooling and downstream suppliers to offer complete systems.

LEISTRITZ

Twin-screw extruders and systems for compounding, reactive extrusion, devolatilization, foaming and direct extrusion. Screw diam. from 18 to 140 mm. Segmented barrels/screws.

Control architecture supplied per customer specifications.

LUNG MENG MACHINERY (USA) INC.

Offers extruders, including zipper profile extruders, flexographic printing machines, T-shirt and garbage bag roll machines.

MACCHI NORTH AMERICA INC.

Company offers complete monolayer through to 9-layer blown and cast film extrusion systems, including auto gauge dies, haul offs and surface winders including systems with all permanent-magnet, synchronous torque motors.

MACRO ENGINEERING & TECHNOLOGY INC.

Advanced blown and cast film extrusion systems and coextrusion systems for printing, laminating, barrier and specialty films. Custom winding, coating and web-handling equipment.

MARIS AMERICA CORP.

See Compounding/Mixing Systems.

MARUBENI JSW COMPOUNDING TECHNICAL CENTER

Two types of twin-rotor, continuous fluxing mixers (CIM) for high-intensity compounding. One is a counterrotating twin-rotor type, similar in basic concept to the Farrel Continuous Mixer; the other is a corotating twin-screw compounding extruder (DSM) built under license from Krauss-Maffei. (See Compounding/Mixing Systems.)

MERRITT EXTRUDER CORP.

See Davis-Standard LLC.

MITSUBISHI HEAVY INDUSTRIES AMERICA

Monolayer and multilayer cast film and biaxial orientation lines have die widths to 5800 mm. Standard single-screw extruders in 65- to 250-mm diam.; special singles-crew mixing extruders (with hexagonal-barrel mixing section) of 50-135 mm. Also tandem extruders from 90/115 to 300/350 mm; counterrotating, conical twin-screw extruders for PVC in 50 and 60 mm; and corotating twin-screw compounders of 45-125 mm. (See Compounding/Mixing Systems.)

NFM WELDING ENGINEERS

Counterrotating, nonintermeshing and corotating, iutermeshing twin-screw extruders for compounding, reactive extrusion, devolatilization, latex conversion, and rubber dewatering and drying. Also single-screw reclaim extruder for fiber and film. (See Compounding/Mixing Systems.)

NORWELL PLASTICS, INC.

Positive-displacement gear pumps in outputs from 0.06 to 41,000 lb/hr and viscosities to 20 million cp accurately meter polymer to the die, eliminate pressure changes at the die, produce increased output, reduce scrap and improve product quality.

Manual screen changers in sizes 1-6 in. feature multiposition handle to avoid interferences and allow better operator access. Hydraulic screen changer in sizes 2.5-15 in. allows screen changes on-the-fly at full extruder output, minimizing downtime and labor.

Continuous screen changers allow automated screen changes to be made without interrupting production rate or product quality.

OLYMPIA TOOL & MACHINE CO

Custom-designed single-screw extruders, specializing in medical tubing, wire insulation, profiles, high-temperature, and fluoropolymer extrusion as well as conventional materials. Sizes from 0.75- to 6-in. diam. with L/Ds of 20:1 to 30:1. Control panel can be floor-standing (HXTA) or tucked under extruder barrel (CP). Manual or automatic air-cooled frictional controls, gear transmissions with oversized thrust bearings, choice of instruments and drive, and control panels meeting JIC-type standards. Optional water troughs, payoffs, takeups, conveyors, crossheads, straight-delivery heads, heated clamps, casters, leveling jacks, bimetallic barrels with or without Inconel facing, and flame-hardened Hastalloy or Stellite-tipped screws. Barrier, two-stage FEE and other custom screw designs available.

OMIPA SPA

Complete extrusion systems for sheet, film and hollow profiles, including specialized dies for hollow PC panels.

PARKINSON TECHNOLOGIES INC.

Parkinson is now the principal corporate identity for three major product and technology areas: Marshall and Williams Plastics, Parkinson Winders, and Key Filters. Marshall and Williams brand plastics orientation and casting equipment includes complete production lines and individual processing and orientation systems, as well as an orientation pilot lab. Parkinson Winders equipment includes individual winders, unwinds, and auxiliary equipment. Key Filters' line includes manual, hydraulic, and continuous melt-filtration screen changers.

PHILLIPS SCIENTIFIC, INC.

Ram extruders for producing ePTFE or UHMW film, sheeting, tube or rod.

PLASTICOMP, INC.

Builds in-line extrusion lines for direct compounding of continuous, long-glass profiles using the "Pushtrusion" DLFT process from Woodshed Technologies.

PLASTICS EQUIPMENT MARKETING SERVICES INC.

Production and laboratory scale extrusion systems for blown film, sheet, profiles, pipe, and compounding. Extruders in 0.5-to 6-in. diam., and complete downstream peripherals. Also rebuilds used extrusion equipment. Scrap reclaim lines with waterring pelletizers from 2- to 6-in. Complete pipe corrugation systems for single- and dual-wall using both vacuum and blow systems.

POMINI INC.

Single-screw compounding extruders for hot- and cold-feed from mixer or reactor.

Hot-feed extruder receives material from reactors and delivers it in pelletized form. Range is 12 to 16 in. with max. throughput of 100,000 lb/hr.

Cold-feed extruder, generally cube- or pellet-fed, ranges from 6 to 15 in. with max. throughput of 14,000 lb/hr.

Mixer-fed extruder, located under the continuous mixer or internal mixer, creates pressure to pump material through a pelletizing die. Range is 2 to 20 in. with max. throughput of 70,000 lb/hr, with or without venting.

All extruders can be equipped with pelletizers in four versions: underwater, waterring, dry-face, or strand-head.

LCM-AX, a combination of continuous mixer and twin-screw extruder technology, is a single-stage, axial-discharge machine consisting of two corotating and intermeshing screws with the central section featuring the typical rotor blade profile of the LCM (long continuous mixer).

CUSTOM-DESIGNED EXTRUSION LINES PROVIDED

(See Compounding/Mixing Systems.)

PTI/Processing Technologies, LLC

Trident single-screw extrusion systems for applications in compounding, pipe and profile, coextrustion, film and sheet, single and tandem foam sheet, fiber, wire and cable, reclaim and extrusion pelletizing. Complete systems in bore sizes from 1.5 through 15 in. diam. and L/D ratios from 7:1 through 48:1. Heavy-duty custom extruders come complete with air- or water-cooling systems; right-hand, left-hand, or tuck-under drive configurations; vented or nonvented barrels, high-performance feedscrew designs; and standard computer control systems, or company's Titan integrated PLC/Computer control system.

High-performance Trident sheet extrusion systems for standard and custom sheet production for a variety of materials, gauges, widths and finishes. Systems offer features such as vertical, inclined or horizontal roll-stand configurations, three-roll standard or multiple chrome roll setup equipped with roll temperature regulation systems; mono-, coextrusion, or laminated web structure options, and high rate of performance options. Systems are tailored specifically to the application.

Trident muitipak extrusion systems suitable for extrusion blow molding of multilayered containers offer custom controls and machine configurations, multiple bore size combinations, and low-melt temperature feedscrews.

Trident dual-diameter extruders feature high-performance machine capacities for foam and film scrap material, single- or double-vented options, special hopper and feed section arrangements, and two-piece barrel and screw assembly for ease of removal.

Supporting systems include Trident CPF water-ring pelletizer, CCF crammer feeder and RAM feeder, intensive wash and drying systems, water filtration and treatment stations, and bulk storage devices. (See Compounding/Mixing Systems.)

RANDCASTLE EXTRUSION SYSTEMS, INC.

Single-screw bench and floor extruders for lab and R&D applications. Features include recirculating mixers with twin-screw properties; interchangeable feed sections; and discharge and continually driven screws. Complete systems available for blown film, cast film, fiber, sheet, devolatilization, compounding pelletizing, monofilament, and reactor pumps. Coextrusion cast film and sheet systems offered up to 7 layers, and coextrusion blown film systems up to 11 layers. Viscom on-line rheometer and lab services available.

RDN MANUFACTURING CO., INC.

Post-extrusion equipment for pipe, tubing and profile, as well as complete turnkey lines with die development and operator training. Individual components include dies, vacuum sizers, water baths, air tables, belt pullers, wheel pullers, embossers, traveling saws, servo cutters and dump tables.

REIFENHAUSER INC.

Blown film extrusion systems and components include extruders from 2- to 10-in. diam. with or without IBC, bubble stabilization cages and multiple collapsing flame types, and oscillating nip-roll assemblies with horizontal turning bars. Winding technology for up to 60-in. roll diam. with forward/reverse wind directions with auto-cutover and roll transfer.

Complete North American manufactured control systems (Reicofol), as well as automatic gauge control (Reicoflow segmented air ring), which improves gauge variation.

Cast film extrusion systems for barrier films and high quality PP.

ROLLEPAAL INC.

Downstream equipment includes tooling, vacuum and spray tanks, pullers, cutters and process control systems for plastic pipe production. Counterrotating parallel twin-screw extruders for pipe with capacities to 3000-plus lb/hr. Features include quick startup, parallel screw design, high torque, high backpressure (9000 psi), and hydrostatic thrust bearings.

ROSENDAHL NEXTROM TECHNOLOGIES

Manual and microprocessor-controlled wire and cable, fiber-optic, and tubing extrusion systems include dual-flyer payoffs, payoff stands, NM series single-screw extruders, fixed and manual centering crossheads, entry/exit caterpillars and capstans, multi-pass cooling troughs, vacuum-calibration troughs, dual automatic coilers, single and dual automatic take-ups, take-up stands, and cabling machinery. Options include diameter, capacitance, temperature, elongation and synchronization control systems.

MPL 32 system is for pipe and tubing for automotive and other engineering applications involving monolayer, multilayer, and shrinkable materials. System produces tubing from 0.16- to 1.26-in. diam. at 20 to 394 ft/min.

MPL 10 produces medical and specialty tubing from 0.04- to 0.4-in. diam. of PVC, urethane, nylon block copolymers, and PE. Outputs from 98 to 984 ft/min.

ROYLE SYSTEMS GROUP

Complete turnkey systems for manufacturing telecommunication, power, automotive, fiber-optic, and other specialty cables. Product line includes payoffs, accumulators, extruders, cooling troughs, capstans, take-ups, computer-control systems and technology. Fiber-optic product line includes

draw tower, strength tester, coloring machine, ribbon machine, secondary coating line, stranding line, and sheathing line.

SML EXTRUSION TECHNOLOGY INC.

Features complete coex cast-film lines for LLDPE breathable films with monoaxial orientation. Also offers Sleeve-Touch polishing technology for high clarity film licensed from Chiba Machine Industry Corp. of Japan.

SUPERIOR-MPM TECHNOLOGIES, INC.

Single- and twin-screw extruders including complete systems for cast and blown film, sheet, coating, extrusion coating and laminating, profile, compounding, and film and sheet orienting machine direction and bi-axial. High- and low-boy mountings and custom designs. Complete lines include hoppers, stuffers, screen changers, film and sheet dies, air rings, oscillating nips, winders and unwinds that feature patent-pending Zip Knife splicing/transferring system, cutters, pullers and pelletizers. Re-engineering and remanufacturing of equipment available.

TECHFLOW DESIGN & MANUFACTURING INC.

Builds high-tech blown film lines (including coextrusion types) in partnership with Giovanni Zocchi of Italy.

TECHLINE EXTRUSION SYSTEMS, INC.

Complete extrusion systems for blown film (widths of 10 to 160 in.) for LDPE, LLDPE, HDPE and up to five-layer coextrusion. Custom-engineered components include single-screw extruders (for blown film, cast film, and profile extrusion) in diam. of 2 to 4.5 in.; manual screen changers; screws; single-layer and multilayer spiral blown-film die assemblies with diam. up to 60 in.; internal-bubble-cooling systems and high-output dual-lip air rings; rotators; take-off nip assemblies; high-speed automatic surface and turret winding systems with in-line slitting, web widths to 160 in., and roll diam. to 60 in.; fixed or adjustable towers; control panels; film treaters; post-gusseters; and any additional auxiliary equipment/replacement parts. Custom engineering, updating, and planning services.

TECNO COATING ENGINEERING SRL

Italian firm offers a triple bubble blown film process for five- and seven-layer barrier film for meat packaging.

THERMO FISHER SCIENTIFIC MATERIAL CHARACTERIZATION

Prism twin-screw extruders feature segmented screw configurations and modular open barrel designs to address the full range of polymers processes. Each barrel segment is heated and cooled separately for precise control.

THERMOPLASTICS ENGINEERING CORP.

Extrusion and coextrusion machinery for wire and cable, fiber optics, profiles, industrial/medical tubing, and compounding/ pelletizing.

Extruders range from 0.75- to 2.5-in. vertical and 0.75- to 6-in. horizontal. Cast-feed sections include generous cooling core and tangential feed for easy feeding of pellets or powders. Custom designed feed screws. Thrust bearings rated for over 10 years of working life. Barrels are bimetallic lined. Special L/Ds and high-temperature machines available.

Upstream equipment includes payoffs, dancer/accumulators, concentric taping heads, and fiber binding heads.

Downstream equipment includes water troughs (heated/chilled), capstans (wet and dry), takeups (dual or single reel), coilers, water strippers, pelletizers, strand dies and pinch rollers. Also cabling machinery, which includes single- and double-twist caners and respooling equipment.

Complete production lines such as fiber-optic buffing lines, tubing lines and repelletizing lines with optional PLC-based computer controls. All systems custom designed. (See Compounding/Mixing Systems.)

THEYSOHN EXTRUSIONSTECHNIK GMBH.

Provides turnkey solutions that include automatic material preparation units consisting of material weighing, mixing and storage systems as well as extruder feeding systems. Also complete extrusion lines with counterrotating twin-screw extruders for various rigid PVC products like pipes, sheets, profiles and siding.

TOMI MACHINERY MANUFACTURING CO.

Blown film systems with extruders of 40- to 125-mm diam. and die diam. of 20-1200 mm. Conventional upward-extruding versions with rotating dies and air rings, and downward-extruding water-bath systems, optional coextrusion capability, automatic roll changing, computer controls, printers, slit-sealers, corona treaters, and bag makers. Extrusion laminating systems also available.

TROESTER MACHINERY, LTD.

Specialized extruders for rubber and TPEs for wire and cable, flexible profiles, hose, gaskets and belts.

UNITED PRECISION

Single- and twin-screw extruders and complete process and auxiliary equipment for blown, cast, embossing, sheet and coatin/laminating and MDO (machine direction orientation) applications.

Mono and coextrusion blown film dies with easy-flow, polymer-flow technology, bubble tracker internal bubble cooling controls and integrated controls and hardware for processing lines.

Custom machine builder for upgrades, rebuilds or integration of new equipment to enhance production capabilities of existing processing.

VICRO RESEARCH INC.

Single-screw extruders from 1- to 8-in. diam. Grooved-feed extruders for HDPE film extrusion up to 4-in. diam. Conical screw extruders for film recycling and crammer feeders. Turnkey production lines for blown film and corrugated pipe. Also in-line bagmaking equipment.

VULCAN MACHINERY CORP.

Downstream extrusion equipment for tubing, profile, sheet, strand and custom processing applications. Tubing and profile equipment includes complete turnkey systems, fully automatic cut and transfer coiling systems, taper tube and belt pullers, on-demand or continuous mode fly-knife cutters, fixed or traveling saws, discharge conveyors, automated custom machinery, multipass/multiaxis cooling and precision vacuum tanks.

Sheet equipment includes small sheet lines, runout conveyors, fully automatic cut and transfer (turret) winding systems, fixed shaft winders, automatic stackers, fixed or traveling cross-line and edge-trim saws.

Strand processing equipment line (located between extruder die and pelletizer) includes high line rate cooling baths, vacuum/blower water removal units and auxiliary strand drying racks. Industries served include automotive, medical, packaging, resin and strapping tape.

WARNER SALES ASSOCIATES, INC.

Complete blown film extrusion lines from Carnevalli with 40- to 120-mm extruders for LLDPE, LDPE, HDPE and coextrusion.

WAYNE MACHINE & DIE CO.

Yellow Jacket line of custom-built single-screw extruders ranges from 0.38 to 8 in. with L/Ds up to 36:1. U.S.-built 19 to 50 mm, 36:1 corotating intermeshing twin-screw extruders supplied for laboratory and production applications. Horizontal, vertical, floor-mounted, table-top, and coextrusion models. Complete systems for tubing, sheet, compounding, rod, wire, blown film, cast film, and extrusion pressure testing, with optional microprocessor control.

Complete coextrusion systems for all process types. Sheet and cast film take-offs are 8 to 24 in. wide, and pelletizers 2- and 3-in. wide. Lab and production blown-film towers. Custom new and rebuilt screws and barrels from 0.25 in. to 6 in. for all models of extruders. Specializes in high-temperature, corrosion-resistant fluoropolymer extruders and screw/barrel retrofits for existing extruders to run engineering thermoplastics.

High-torque vertical and table-top production-rated extruders feature double-reduction helical gearboxes with shaved, ground and hardened gears instead of worm or enveloping worm gearboxes. Helical box is said to be more efficient than the worm type, resulting in better power transfer to the screw, less wasted energy converted into heat from friction, and less abrasive gear wear than with worm drives. Table-top units from 0.25 to 1.25 in.; vertical single-post units in 0.25 to 1.5 in.; vertical double-post units in 2 and 2.5 in.

Custom-built downstream equipment includes servo and d-c pullers and cutters. Vacuum tanks, water troughs, air strippers, and dies for blown film, sheet, cast film, strand, tubing, wire insulation, cord coating, and other applications are custom made. (See Compounding/Mixing Systems.)

WELEX INCORPORATED

For sheet, compounding, profiles, tubing, and most applications, high-performance single-screw extruders from 1.25- to 10-in. diam. with L/D ratios from 24:1 to 40:1. Direct coupled or belt drive transmissions, closed-loop liquid or high capacity air cooling, and standard or automated process control systems. Sub-assembled extruders available.

Specializes in complete sheet extrusion systems and offers roll stack configurations to suit all sheet applications. Take-offs include silent chain drive, individual roll drive, all gear drive, and the Unistack multiposition roll stack.

Also in-line systems for high-volume thermoformers; coextruders with modular feed blocks for new and existing extruders; gear pumps with controls integrated in extruder panel for new extruders, or as retrofits with free-standing panels. Options include screen changers, dies, air knives, antistatic baths, shears and winders.

Maintains complete spare parts inventory. Field service team assists customer requirements.

WILMINGTON MACHINERY, INC.

Single-screw extruders, coextrusion and extrusion systems for specialized needs. Bore diam. from 1.25 through 12 in; L/D ratios from 20:1 to 48:1. Computer controls have tailored software, equipment and process diagnostics, SPC and auxiliary equipment control. Also special bases for multiple extruders or special heights and mounts.

WINDMOELLER & HOELSCHER CORP.

Varex blown film lines range from monolayer up to nine layers for LDPE, LLDPE, HDPE, nylon, EVOH metallocenes and blends with extruders from 2 to 6 in. Varex line includes internal bubble cooling; grooved-feed and smooth-feed throats; barrier screw technology; oscillating hauloff; and surface/center/gap turret winders, or combinations of the three.

Filmex cast film lines for PR stretch and specialty film are capable of extruding monolayer film and multilayer film up to nine layers but is capable of additional layers with the addition of a particular die feed block technology. Equipment is designed for working widths from 55 to 130 in. with a film thickness of 0.4 to 12 mil and a maximum output of 3300 lb/hr.

Besides standard dies from 4.7- to 49-in. diam., company offers its Optifil P2 automatic blown film die in diam. from 6 to 35 in. for monolayer and three-layer films, and 16 to 20 in. for five-, six-and seven-layer films. Optifil P2 die controls transverse-direction gauge variation automatically, producing transverse-direction tolerances approaching those in the machine direction. Optifil P2 automatic die can help reduce start-up times and raw-material consumption, while manufacturing films with increased flatness and minimal curvature.

Also offers Optifil P2K automatic air ring for new lines or as a retrofit for existing equipment. The latest innovation in the Optifil P family is Optifil P3 gauge profile control system (an upgrade from the P2 system) designed specifically for high-output blown film lines.

XALOY EXTRUSION

Supplies positive-displacement gear pumps in outputs from 0.06 to 41,000 lb/hr and viscosities to 20 million accurately meter polymer to the die, eliminate pressure changes at the die, produce increased output, reduce scrap and improve product quality.

Manual screen changers in sizes from 1-6 in. feature multiposition handle to avoid interferences and allow better operator access. Hydraulic screen changer in sizes from 2.5-15 in. allows screen changes on-the-fly at full extruder output, minimizing downtime and labor.

Continuous screen changers allow automated screen changes to be made without interrupting production rate or product quality.

XTRUTEC ENGINEERING

Offers broad line of laboratory plastics processing equipment manufactured by Labtech Engineering from Thailand. Product line includes single-screw extruders (20, 25 and 30 mm); twin-screw extruders (16, 20 and 26 mm); pelletizers; filter test machines; take-off systems for blown film, cast film, sheet and monofilaments; mixers; presses; blow molders; and two-roll mills.

Laboratory services available for testing materials prior to purchase of equipment. Company also provides consulting and equipment services.

ZENITH PUMPS BUSINESS UNIT OF COLFAX CORP.

PEP-II series gear pumps serve as a pressure booster/stabilizer on the discharge end of an extruder and for precise additive injection into the extruder barrel. Constructed of through-hardened, high-speed tool steels or 400-series stainless for corrosion and wear resistance.

PEP-II gear technology utilizes low-aspect-ratio crowned-root gears. With L/D ratio of 0.75 vs. industry standard of 1.0 for helical gears, PEP-II ensures polymers have less distance to travel, thereby reducing tooth pulsations. Crowned roots are parabolic-shaped undercuts, which offer less resistance to tooth evacuation flow and further tooth-pulse reduction. Company reports that the combination of crowned root and low-aspect ratio gearing provide superior extrusion performance, superior mechanical integrity, and greater efficiency than conventional designs.
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Title Annotation:Extrusion/Compounding Systems
Publication:Plastics Technology
Date:Oct 1, 2007
Words:7951
Previous Article:Urethane processing systems.
Next Article:Compounding and mixing systems.


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