Pelletizers and dicers.

AMERICAN LEISTRITZ EXTRUDER CORP.

Complete hot-face pelletizing lines for compounding, reacting, devolatilizing, and scrap reprocessing from under 50 lb/hr to 5000 lb/hr.

ANDRITZ SPROUT-BAUER, INC.

Vertical-ring-die pellet mill has v-belt or gear drive from 25 to 700 hp. Simple design of power train features two rugged bearings, main shaft, and die housing. Dies available in varying thicknesses and hole diameters, with drive-speed variations to pelletize a wide range of plastics.

BERINGER CO., INC.

WRP water-ring pelletizing systems feature a hot-cut, water-ring quench system that separates the die plate from the cooling water. This minimizes sensitivity to process conditions because cooling water cannot freeze or slow the flow of polymer through the die. Energy consumption also is minimized because the knife assembly cuts molten polymer in air instead of a semi-extrudate underwater or hardened strands. Each cutting blade individually flexes and adjusts to the die plate surface, eliminating sensitive blade adjustments. Start-up occurs at the touch of a single push-button, and cleanout is fast and simple. Two models have throughput rates from 500 to 5000 lb/hr.

Cumberland Marathon strand pelletizers process high-temperature engineering thermoplastics. Units feature long-running. wear-resistant components; and a slant-cut rotor with 48 small, solid knives secured in the rotor by multiple wedges. Thermal stability is maintained with air and Vortex Cooling. Pivoting cutting chamber is split for easy service and for removing the cutting and feed-roll assemblies as a module. Models 6-in. to 32-in.-wide have capacities to 12,000 lb/hr.

Cumberland Quietizer strand pelletizers pelletize commodity resins, including color concentrate and polymers difficult to die-face cut. Helical cutter operates at slow speed, reducing overall noise, and using less power. Cantilevered rotor on 6-, 8 and 11-in. models offers rapid change-out. Eight sizes from 6-in. through 32-in. opening and capacities to 12,000 lb/hr.

BERSTORFF CORP.

Water-ring pelletizers from 50 to 16,000 lb/hr are said to be easy to start and operate and energy-efficient, with minimal labor. Standard model and low-residence-time model for moisture-sensitive materials such as nylon.

Also underwater pelletizers from 6600 to 55,000 lb/hr and hot die-face and water-spray pelletizers for PVC to 8800 lb/hr.

BLACK CLAWSON CONVERTING MACHINERY CORP.

Six underwater models and three water-ring pelletizer models handle rates from 100 to 60,000 lb/hr. Small systems for reclaim, product development, and testing. Ultra-high concentrations of pigments and very high-melt indexes can be handled, since molten strand strength is not a limiting factor.

Accessories include heated and non-heated die plates, cleanable pellet dryers, temperature-control panels, water-recirculation systems, and pellet heating. Modular construction for rapid disassembly and simple maintenance.

STEWART BOILING

See Kobelco Stewart Boiling, Inc.

C.W. BRABENDER INSTRUMENTS INC.

Laboratory pelletizer cuts 1/8-in. or 1/16-in. pellets from one to four strands. Mobile stand, anodized-steel cutting chamber, hardened cutting blades, electrical safety, and optional 5-ft water trough.

CARL G. BRIMMEKAMP & CO., INC.

Die-face pelletizing systems for up to 1400 lb/hr include underwater and dry-face pelletizers, and eccentric die-face pelletizers, as well as laboratory strand-type units. Washing systems can be provided for extremely dirty reclaim materials.

BROWN PLASTICS ENGINEERING CO.

Strand pelletizers for small production, laboratory, or school use have a 2-in. face with driven pull rolls coordinated with a driven rotor. Available in both plain and stainless steel. Also rebuilds pelletizers.

BUSS AMERICA, INC.

Strand pelletizers in three sizes for outputs up to 12,000 lb/hr and up to 120 strands of 1/8-in. diam. for nylon, polyester and reinforced materials.

CALIFORNIA PELLET MILL CO.

Pellet mills from 2 to 500 hp for pelletizing thermoplastics. Units operate by compressing fluff between two rotating steel rollers and a multiple-hole die. Frictional heat softens material so it coheres. Pellets cut to length by means of adjustable knives. Depending on material, bulk density and film thickness, density of the original fluff increases four to eight times. Pellets are 1/4 in. diam. and 1/2 to 3/4 in. long. Capacities range from 500 to 18,000 lb/hr. Densified fluff can be re-extruded, mixed with virgin, or used as a fuel source.

CLAY GROUP, INC.

Strand pelletizers with capacities up to 5000 lb/hr and underwater pelletizers and accompanying cooling and dewatering devices.

CONAIR JETRO THE CONAIR GROUP, INC.

Strand pelletizer lines include the T-Series with accessible cabinet and feedroll assembly. S-Series is economically priced with limited number of options and stock availability in sizes to 12 in. Eight strand pelletizers from 4 to 32 in. and 19 models with capacities from 200 to 15,000 lb/hr. Metric series features European drive and motor.

Water-slide pelletizing systems use a water conveyor to condition soft strands before they are cut by a strand pelletizer. Hardening of the outer shell of the strand eliminates strand breakage, binding or intermixing downtime. Units offer easy start-up with minimum waste, particularly for low-viscosity materials with poor melt strength. Once cut, pellets can be further cooled in a water slurry, or sent directly to pneumatic conveying system. Under-water and water-ring pelletizers also available.

CONVERTING SYSTEMS INTERNATIONAL

Complete die-face pelletizing systems include die, cutter, and air- or water-cooling systems, said to provide easy maintenance and output from 100 to 3800 lb/hr. Die design and patented water-cooling system are said to produce pellets free of strings, agglomerates, and fines.

D&S MANUFACTURING CO., INC.

A 9-in. dicer produces octahedral or cubical pellets from continuous plastic strips 1/8 in. or 3/32 in. thick x 9 in. wide. Simple guide-rail adjustment allows use of a 3-in. minimum-width strip. Output can exceed 7000 lb/hr. Rotary cutter and bed knife may be changed in 30 min. Main base is a heavy-duty steel weldment to prevent vibration.

DAVIS-STANDARD DIV. CROMPTON & KNOWLES CORP.

Underwater pelletizer systems from 500 to 20,000 lb/hr. Melt flow is directed downward through a horizontal die plate with cutting blades rotating in a horizontal plane. Blades are driven by d-c scr drive. Drive shaft, passing through the flow diverter, is aligned to maintain the blades squarely against the die-plate surface. Blades are said to be easily removed for sharpening or replacement. When reassembled, precise alignment of the blades against the cutting face is said to be preserved. Complete assembly includes pelletizer and drive, spin dryer, water filtering and tempering system and, if necessary, hot-oil system for the die plates.

EGAN DAVIS-STANDARD CROMPTON & KNOWLES CORP.

Underwater pelletizing system is suitable for all polyolefins, ABS, and polystyrene. Horizontal unit features steam- or oil-heated die plate, hydraulic or d-c drive, water chamber designed for easy access, rigid-head and flex-head knife mounting, and micro-adjustment of knife position. Complete. package includes water-tempering system. Machine parts in contact with material are of stainless steel. Capacity ranges from 2000 to 45,000 lb/hr. Pelletizer is carriage-mounted and easily adjusted for extruder alignment.

FARREL CORP.

Underwater pelletizers from 1000 to 80,000 lb/hr process LDPE, HDPE, PP and PS. Options include standard, heat-channel, and heat-exchanger pellet plates for steam or oil heating. Cutter motors may be electric or hydraulic. Dry-face pelletizer for very temperature-sensitive materials or polymers where water contact is to be avoided.

Air-ring pelletizer and jet-ring (water-ring) pelletizers also available.

GALA INDUSTRIES, INC.

Underwater pelletizer for 20 to 6000 lb/hr. Pelletizing systems include dryer, tempered-water system, control panel, and power panel, and are reported to be competitively priced relative to comparable strand lines.

Centrifugal dryers sold as part of the system and separately can dry from 20 to 100,000 lb/hr. Options include polymer diverter valves and quick-opening clamps.

HAAKE INC.

Laboratory pelletizer is supported by a movable, welded frame on which motor control is positioned for accessibility. Bottom steel feed roll is serrated for positive grip of extrudate strands, and top rubber feed roll is variably adjustable by a gap-adjustment knob. Cutting mechanism consists of one bed knife and four cutting blades on rotor. Unit has a 3:1 variable-speed drive motor with d-c scr motor controller mounted on adjustable slide base.

HENION INTERNATIONAL, INC.

Line of 9- and 18-in. dicers, dicer cutters, bed knives and adapters. Services include knife resharpening, repair, and machine rebuilding. Pelletizer solid rotors and underwater pelletizer knives also available. Resharpening, repair, and Stellite welding services for solid rotors.

HUTCNEON MACHINERY, INC.

Used and rebuilt pelletizers and dicers for strand, slab, underwater, water-ring and dry-face systems. Sizes from single-strand laboratory units to 5000 lb/hr production units.

HYDRECLAIM CORP.

FF Series dual-diameter repelletizing systems for polyethylene film scrap use hot-face die cutting and air cooling to provide consistent pellet sizes at speeds of 1000 lb/hr.

JAPAN STEEL WORKS AMERICA, INC.

Underwater, hot-face, and strand pelletizers. Underwater pelletizer has a die lined with abrasion-resistant material. Hot-face pelletizers have max. capacity of 8800 lb/hr. Strand pelletizers have throughputs to 7700 lb/hr. Strand dies incorporate polymer flow-control device. Also offers centrifugal pellet dryer.

KILLION EXTRUDERS, INC.

Strand pelletizers for lab or small-scale production in bench and floor models. Feed throats from 2 to 4 in., variable-speed drive, and heavy-duty design.

KOBELCO STEWART ROLLING, INC.

Underwater and dry-face pelletizing systems and custom-designed strand and strip dicing lines complement company's line of extruders.

Underwater pelletizers and screen changers in capacities to 90,000 lb/hr. Patented water-cooled tie-rod design eliminates thermal influence on knife/ die-face alignment. Smooth slurry flow eliminates fine accumulation on pellets due to stagnation. Die plates employ latest alloys and patented bonding techniques for maximized abrasion and corrosion resistance, thus maximizing die-plate life. Heat channel and heat-exchanger pipe die plates maximize heating efficiency and minimize pressure loss. Die plates retrofit to any manufacturer's pelletizer. Bucket-type strainer gives large filtration area with minimum pressure drop.

LEISTRITZ AG

See American Leistritz Extruder.

LITTLEFORD DAY, INC.

See Taylor-Stiles Div.

MORIYAMA CORP.

Moriyama FR hot-face pelletizing system consists of hopper section housing twin-tapered screws designed to accept mixed compounds, which feed a single screw that extrudes product to a pellet die, where it is cut by a rotary blade.

PLASTICS EQUIPMENT MARKETING SERVICES

Offers production and laboratory pelletizers 2 in. and larger.

POMINI, INC.

Three types of pelletizing heads used with extruders or gear pumps:

* Underwater pelletizer has outputs from 1000 to 50,000 lb/hr for polyolefins and PS. Options include heat exchanger and heat-channel pellet plates for steam or oil heating.

* Water-ring pelletizer from 1000 to 10,000 lb/hr for any grade of polyolefins.

* Dry-face pelletizer from 1000 to 8000 lb/hr for thermally sensitive materials such as cable compound, PVC, and other non-water-compatible polymers.

RANDCASTLE EXTRUSION SYSTEMS

Two lines of strand pelletizers:

* Micro-pelletizer--Makes pellets 0.02 x 0.02 in. and 0.06 x 0.06 in. for feeding of small extruders in the 1/4- to 1/2-in. range. Pelletizer converts to a two-roll puller or torque winder. Cantilever design permits ready access to working components for cleaning and maintenance.

* Two-inch wide, two-function pelletizer--Both nip rolls, with pneumatically adjustable pressure, are mechanically driven for pulling irregular or slippery strands. Quick-change components mean fast removal of working parts for complete cleaning or replacement. Quick-change parts also convert unit to a two-roll puller with both nip rolls driven for pulling rod, strips, tubing and profiles.

REIFENHAUSER INC.

PVC hot-face pelletizing systems include twin-screw extruder, die, hot-face cutter, transport blower, and pellet cooler. Production rates to 3300 lb/hr.

RIETER CORP. PELLETIZING MACHINERY GROUP

Strand pelletizers have capacities from 200 to 14,000 lb/hr. USG 150, 300, and 600 series of underwater strand pelletizers in horizontal or vertical configurations. Units lead the polymer strands into a cutter with 5-15[degrees] inclination from horizontal or vertical. Strands are self-starting, and cooling time can be adjusted for hard-to,cool polymers. Horizontal pelletizer comes with fully automatic start-up system that allows die cleaning without stopping polymer flow.

For automatic dry-strand pelletizing, ATG 150, 300 and 600 series with water separator and air knife ensure that polymer strands enter the pelletizer water-free, eliminating downstream pellet dryer.

ASG series of strand pelletizers reportedly offer maintenance advantages, as well as long lifetime. Machines come in six widths from 50 mm (2-in.) to 640 mm (25-in.), available with mechanical speed variator and inverter drive. Rotor resharpening capabilities, spare parts, and field service available. Custom materials of construction available on all machines for pelletizing special materials. Casting heads, cooling baths, air knives and preconveyors also offered.

SANDVIK PROCESS SYSTEMS, INC.

Rotoform Process continuously forms melts at up to 600 F into small drops, which solidify on a steel-belt cooler into uniform, round pastilles in sizes from 1 mm to 50 mm. Process offers:

* No contact between product and cooling water, eliminating need for energy to dry pellets.

* Cooling water is not contaminated.

* No cutters are needed, lowering energy consumption and maintenance.

* Dust-free process.

Process can be used for products with melt viscosities up to 80,000 cp at temperatures under 600 F. It is said to enable fast changeover between different products.

STERLING DIV.

See Davis-Standard.

TAYLOR-STILES DIV. LITTLEFORD DAY, INC.

Pelletizers are designed for processing rod stock. Up to 72-blade cutterhead for precise shear cutting. Units can be furnished with detachable straight knives or fixed helix-designed blades. Available in various widths.

Dicers and slitters for one-stage diced/pelletized particles from extrusions, slabs or sheet stock of rubber, plastics, glass-filled reinforced sheets, etc. Rugged, double-mandrel rotary slitter equipped with a rotary cutter becomes a precision dicer. Dicing cutters from 6 to 96 in. with up to 24 rotor fly knives. Slitters furnished without cross-cutter to produce strips.

VIDEX MACHINERY CORP.

Rebuilt and guaranteed pelletizers and dicers from laboratory size to 24 in. wide available with solid helical cutters for lower noise levels, or with conventional bolt-on knives. Dicers can produce "octapellets" or cubes. Motors for pelletizers and dicers can be mechanical variable-speed, d-c/scr variable-speed, or a-c single-speed.

WAYNE MACHINE & DlE CO.

Yellow-Jacket heavy-duty strand pelletizers for laboratory and production applications in 2- to 6-in. models. The 2-and 3-in. models have eight-tooth steel rotor, and 4- and 6-in. models a 12-tooth rotor with resharpenable D-2 steel blades. All models feature a four-sided bed knife, which can be turned four times before requiring replacement. Other features are d-c drives from 1 1/2 to 5 hp, aluminum housings, cutter shields, gear drive on rubber and knurled rollers for positive strand movement, easy clean-out, safety switch on cover, emergency stop button, locking casters on stand, and 45[degrees] dump chute.

WELDING ENGINEERS, INC.

Exclusive distributor for Gamma Meccanica's water-ring pelletizing systems and side-mounting system for pelletizing in air or into water. Hot die-face cutting makes processing insensitive to polymer flow interruptions, while water-ring cooling chamber provides immediate quenching of pellets without agglomeration. Throughput rates of 100 to 14,000 lb/hr.

WERNER & PFLEIDERER CORP.

Variety of pelletizing equipment includes units that can be integrated with company's twin-screw compounders and systems adaptable to any reactor, autoclave, or extruder. Die-face units include high-volume underwater pelletizing system with integrated diverter valve, die and screen-pack changer; and a water-ring pelletizer with die plate and cutter assembly.

Scheer strand pelletizing system, a serf-stranding, forced-conveyance model, sandwiches strands between two belts for positive conveyance through the water bath, which reportedly eliminates problems of strand breakage and intermixing of strands.

Manually fed SGS-E line with capacities from 5 to 15,000 lb/hr is said to offer lower noise level, ease of maintenance, improved cleaning capability, quicker product changeover, and increased durability.