Granulators and pulverizers.

ACME PLASTIC MACHINERY CORP.

Sells beside-the-press grinders for injection molders in sizes from 3 to 50 hp, with throats from 8 x 10 in. to 24 x 36 in.

AEC/NELMOR

Manufactures vertically integrated size-reduction/recycling equipment Individual granulators or shredders, or complete systems can be tailored to specific requirements. Granulators can be equipped with new patented Microknife cutting blades.

AG series of under-the-press, auger-feed granulators consists of four sizes ranging from 6 x 7 in. to 16 x 16 in. cutting chambers. Units feature a positive-feeding auger screw with reversing flight that eliminates wrapping.

Premier beside-the-press granulators reduce sprues, runners, and rejected parts to clean uniform granulate. Feature scissor-type cutting action in two different sound-control packages. Nine models range from 8 x 10 in. to 12 x 30 in. cutting chambers.

Low-speed granulators accept sprues and runners dropped by a robot or conveyor. Sizes range from 8 x 10 in. to 12 x 20 in. cutting chambers. High-torque gear motors, together with heavy-duty, pre-stretched chain, drive the rotor at 120 rpm.

Bold series granulators fills requirements of recycling bottles and other bulky shapes. In cutting chamber sizes of 8 x 10 in., 12 x 15 in., 16 x 16 in., 20 x 20 in., 20 x 30 in., 20 x 45 in., and 30 x 30 in., machines feature tangential-feed cutting chambers.

Large-part central granulators fill requirements of recycling purgings, pipe, and thick-wall parts in large-volume production. Fourteen models of open, solid, or staggered rotor designs offered. Cutting chambers range from 14 x 24 in. to 36 x 72 in.

Shredders feature counterrotating shafts equipped with a series of alternating stacked cutters that reduce feed-stocks without flyback and reportedly at maximum energy efficiency. Nine models offered in single- or two-stage configurations.

A.I.M. INTERNATIONAL INC.

Offers a line of impact pulverizers capable of producing 600-1200 lb/hr.

AIR PRODUCTS AND CHEMICALS, INC.

Cryo-Grind cryogenic grinding and recycling system reduces hard-to-grind materials to finer particle sizes without contributing to heat history. Material to be ground moves through a cooling conveyor, where it is sprayed with liquid nitrogen (-320 F) for chilling and embrittling before grinding. Material then enters the grinding mill, where additional nitrogen may be injected on demand from a temperature sensor to remove excess heat created by the grinding operation. Still-frigid nitrogen vapor is recycled from the grinding area to the feed hopper to precool the unground material. Cryo-Grind system offers optional sound enclosure to keep noise levels within OSHA standards.

ALPHA MARATHON MFG. INC.

Offers heavy-duty granulators featuring high outputs using low-hp drives. Granulators include: Model 150/10 with 3-hp drive, rated at 440 kg/hr; Model 350/10 with 15-hp drive, rated at 1100 kg/hr; Model 500/10 with 30-hp drive, rated at 3300 kg/hr; and Model 800/10 with 50-hp drive, rated at 5500 kg/hr. Feature easily accessible grinder blades and an integral air blower for removing ground material.

ANDRITZ SPROUT-BAUER, INC.

Offers five types of precision rotary-knife granulators featuring scrap reduction via rotor knives and stationary bed knives, plus a screen arrangement for gradual reduction and efficient discharge of material.

CU-1012, a granular-type cutter for low-capacity reduction of film, edge trim, sprues and runners, is adaptable to continuous processing or portable operations.

BT-8X6 is installed directly in pneumatic lines to chop selvage trim.

DSF is designed for precision shearing of LDPE, LLDPE, HDPE, PP, PVC and PET films as thin as 1/4 mil. Nine models offered with throat sizes from 10 x 12 in. to 25 x 60 in. and drives from 5 to 250 hp.

MR is for rugged, high-capacity requirements. Uses open-type rotor and shear knives and comes in two sizes, 20 x 30 in. and 20 x 36 in.

MRP is similar to the MR model, but with open or solid herringbone-type rotor and shear knives. Also has spin-grinding feature said to maintain extremely close knife-to-knife clearances and is offered in two sizes, 20 x 30 in. and 20 x 36 in.

BALL & JEWELL DIV., STERLING INC.

Offers auger-feed, beside-the-press and heavy-duty upright granulators, central granulators, hogs, shredders, conveyors, parts separators, granulate removal systems and complete closed-loop reclaim systems that can separate, convey, shred, grind and reload molding machines.

Six series of upright granulators (BP, CG, SG, CG Mighty Built, HDG and HDH) range from a "mini" 6 x 8 in. unit to the large 20 x 26 in. SG-2026. Larger heavy-duty (HD) units range up to a 200-hp unit with a 36 x 52 in. chamber. All granulators conform to NEMA-4 specifications.

CG series features a scissor-cut knife arrangement, slant chamber for tangential feed of material, swing-down screen cradle and tilt-back hopper for easy maintenance, and a complete sound enclosure. Sizes range from 8 x 12 in. through 16 x 32 in. Available for all applications.

MD series offers a sturdy chamber, three rotary knives, two bedknives and scissor-cut configuration. Sizes range from 8 x 10 in. to 16 x 26 in. cutting chamber. Options include a sound enclosure and low-rpm motors for quiet operation. Suitable for sprues, runners, and various other parts.

Auger-feed granulators available with straight or scissor-cut arrangement, safety interlocks, three rotor knives, and two bedknives. Easy to dean and service, they can include hoppers and infeed chutes, and are available with attached 6 x 8 in. to 16 x 20 in. chambers.

Large, low-speed, high-torque Shred-Buster shredders available for bleeder stock, purging, thick-walled stock, barrels, large blow molded parts, or particularly tough scrap. Two-step shredder/ granulator reportedly can reduce large parts with half the electrical power of a "hog" granulator. Shred-Buster's specially designed hooked cutters handle long or special scrap that cannot be easily processed by straight-blade machines.

LOUIS P. BATSON INC.

Offers Sant'Andrea Novara industrial shredders with a high-ratio gear reducer between the motor and shaft (approx. 1:100). Units combine high torque and low speed. Applications range from truck tires to steel drums, plastic scrap, bumpers, cables, wooden pallets, rubbers, and municipal waste. Will custom design.

BATTENFELD GLOUCESTER ENGINEERING CO., INC.

Offers six basic types of granulators (20 models), including heavy-duty chunk, edge-trim, trim-press, beside-the-press, and auger-feed models. Machines feature rugged, heavy-duty construction, easy-access curing chamber, steep-angle or radial knives, and a solid high-inertia flywheel. Rotor bearings are mounted outside curing chamber away from heat and contamination. Units feature tangent-feed, no flyback design. Features such as reversible rotor knives are standard on all auger-feed, beside-the-press, trim-press, and edge-trim granulators. Water cooling is available on other models as an option.

Custom-designed sound enclosures for both new and existing granulators are capable of keeping noise levels in the mid-70 dbA range. Beside-the-press standard models designed to operate in the mid-80 dbA range.

Trim-press granulators are for grinding thermoforming skeletons in-line or out-of-line. Designs for reclaiming wire, profiles, purgings, pipe, blow molding, and robot infeed also available.

C.S. BELL CO.

Manufactures hammer mills and optional accessories. Bottom-discharge models suited for heavy-duty grinding. Blower-discharge models are for dry grinding and cases where processed materials are distributed to another area.

BEPEX CORP.

Pulvocron pulverizer, an air-swept combination pulverizer/classifier, which permits external fineness adjustment during operation, can produce medium-fine, fine and ultra-fine particle sizes. Three size ranges offered: 20 in., 38 in. and 76 in. Typical products handled include melamine, PVC, polyester, epoxy powder, and PS.

C.W. BRABENDER INSTRUMENTS INC.

Floor-model sample-batch granulator features a reportedly unique arrangement of screens and rotors to ensure smooth screening and safe, uniform grinding. Equipped with two 4-in., 3500-rpm rotary cutters and one 4-in. stationary cutter, and a 5-mm screen. Seven sizes of interchangeable standard screens available. Can handle the toughest materials and is simple to operate and maintain. Measuring 27 in. long x 17 in. wide x 41 in. high, machine has a throat size of 4 x 5 1/8 in., allowing maximum feed rate up to 40 lb/hr. Flyback and hang-up in cutting chamber are said to be minimal. Comes with built-in overload protection; safety switches; double-walled, sound-insulated feed chamber; and heavy-duty ball-bearing rubber casters.

CINCINNATI MILACRON U.S. PLASTICS MACHINERY DIV.

Provides auger-feed, Low Pro, and upright granulators in various sizes and designs. Auger-feed models have average throughput of 175 and 275 lb/hr with throat sizes of 8 x 8 in. and 10 x 10 in. Optional auger-feed design offers integral soundproofing, which limits noise levels to 80 dbA.

Low Pro models suited for robot feeding offer average throughput of 150 and 225 lb/hr, with throat sizes of 6 x 8 in. and 9 x 12 in. Paddle-wheel feed, "Z"-shaped hopper, and 90 dbA construction available. Optional 80 dbA soundproofing for the Low Pro design.

Upright series granulators available with 250 to 700 lb/hr throughput and throat sizes from 6 x 8 in. to 16 x 32 in. Tangential feed, long-lasting D-2 knives, clam-shell design for easy service, and below 90 dbA operation with most materials are standard. A sound-level option below 80 dbA is available.

CONAlR MARTIN/WOR-TEX THE CONAIR GROUP, INC.

Granulators are application-specific in many sizes.

JC series beside-the-press granulators suitable for engineering grade materials has helical rotor for sprues, runners, and preforms.

LP series low-profile, robot-fed, beside-the-press granulators has slow-speed, helical rotor for quiet grinding.

BP series upright, low-cost, beside-machine grinders for general-purpose applications includes a tangential-feed curing chamber that eliminates fly-back.

TF series grinders for bottles, tabs/tails, sprues and runners, has an open-rotor design for bulky parts and blow molding applications.

FHG series for film, edge trim, sheet and profiles, with specially designed short-chord/high-shear rotors, produces clean cuts. Automatic in-feed devices available.

HA series helical-rotor granulator for under-the-press, auger feed sprue/runner grinding.

HD series heavy-duty grinder has a steep-angle, scissor-cut rotor that easily granulates 10-mil to 1/4-in. sheet, large thick-wall parts, film and purgings.

UP/FP series in-line web granulator includes automatic in-feed control, which interfaces with thermoforming trim press.

A variety of shredders can reduce large molded parts and purgings to granulating size. Features include counter-rotating knives and self-cleaning combs said to be virtually jam-proof.

CONDUX, INC.

Specializes in converting hard-to-manage fiber, film and foam into free-flowing densified granules without significant thermal degradation (CV-50 Plastcompactor). Provides full range of size-reduction equipment capable of converting huge purgings into fine particles.

Densifiers for fiber, film, foam, etc., have throughputs up to 1200 lb/hr.

Granulators for pipe, purgings, profiles, film, fiber and foam have rotor diameters up to 63 in. and machine widths up to 94 in. Line is complemented by a complete array of feeding and discharge accessories such as conveyors, bale cutters, guillotines, augers, blowers, cyclones, and dust filters. Rotors also available in stainless steel or nickel. Throughputs up to 15,000 lb/hr.

Blast mills, pinned disc mills, universal mills, and classifier mills for fine grinding.

For ultra-fine grinding, fluidized-bed jet mills reduce material down to 5 microns. System designed to handle sensitive, abrasive or ultrafine dry solids at high throughputs.

CONVERTING SYSTEMS INTERNATIONAL

Offers granulators from FBM srl of Italy for blown film, injection molding and all forms of extrusion, ranging in size from 2 to 200 hp with output capacities to 4000 lb/hr. Design of rotor and blade are said to give high performance even with "difficult" materials. Sound enclosures and suction and sacking systems are optional. Complete reclaiming lines for film scrap and PET bottles, as well as washing systems for mixed plastics waste also offered.

CUMBERLAND ENGINEERING CO. JOHN BROWN INC.

Manufactures under-the-press, beside-the-press, central hog-type shredder/granulators; thermoform granulators; and automated reclamation systems, including custom equipment to meet special requirements.

Robotic and conveyor-feed models, and quiet-running beside-the-press models range in throat sizes from 4 x 6 in. to 18 x 36 in. and deliver throughputs from 250 to 1000 lb/hr.

Medium- to heavy-duty granulators feature advanced rotor designs for reclaiming bulky parts, film, sheet, filament, foam and heavy-wall pipe. Sizes from 15-24 in. wide and 24-100 in. long. Capacities to 5000 lb/hr. Extra-heavy-duty units range from 9 x 20 in. to 32 x 50 in. Capacities to 10,000 lb/hr in reclaiming solid, tough materials and purgings are available. On-line reclaiming and densification systems for film, sheet and fiber deliver up to 15,000 lb/hr. Thermoform granulators for continuous reclaim of skeletal web directly from the trim press deliver up to 1500 lb/hr. Infeed widths are 30-66 in.

Shredder/granulators offered in 16 combinations with production rates from 1200 to 3500 lb/hr.

Model 12 x 12 compact granulator for injection and blow molded parts, as well as profiles and pipe, has a hinged hopper and pivoting, drop-down screen cradle with throughput rates up to 500 lb/hr.

ENTOLETER, INC.

Most moders of Alsteele granulators have double-edged bed knives, said to double service life between sharpenings. All models accept standard anti-flyback hoppers, sheet or pipe hoppers, powered feed rolls, combinations, and special hoppers for custom uses. Open rotors are available on smaller models. Closed rotors have two to five blades in straight, angled, or staggered pattern.

Sound-reduction is standard. Treatment of general-purpose models is said to bring sound level to OSHA minimums. Larger models, and smaller models in sensitive areas, use integral or free-standing enclosures to lessen noise. The line includes:

* General-purpose units from 5 to 40 hp with 10 x 9 in. to 14 x 30 in. throats.

* Custom machines ranging from 30 to 80 hp (dual drive) and from 14 x 39 in. to 14 x 51 in. throat size.

* Heavy-duty granulators from 30 to 150 hp (single or dual drive) and from 16 x 17 in. to 18 x 51 in. throat size.

* Central systems ranging from 40 to 300 hp (single or dual drive) and from 24 x 25 in. to 30 x 73 in. throats.

* Hogs of 5 to 300 hp (direct drive) and 5 x 10 in. to 12 x 48 in. throats.

Tie-in systems to mate with special feeding requirements can be provided.

FITZPATRICK CO.

Mills feature a wide choice of interchangeable blade designs and screen sizes and a variety of feed devices: manual, gravity, vibrating, rotary valve, screw, and pump. Stainless-steel construction, water jacketing for temperature-controlled processing, and belt-, direct-, or variable-speed drives are also featured. Seven sizes to 150 hp and a 3-hp laboratory unit are available. Rotors are from 5 x 8 in. to 28 x 17 in.

FitzMill prebreaking equipment reportedly achieves economical reduction of raw materials for maximum efficiency in handling and conveying to subsequent processing. Guilocutter is especially recommended for heat-sensitive materials.

FLUID AIR INC.

Size-reduction mill features dust-free containment options for on-line or independent use in medium to fine particle range of 10-60 mesh. Patented rotor is corrosion-resistant and has virtually no cracks, which allows for quick, sanitary cleanup. Optional microprocessor controls prevent operator error on setup, validate the process, ensure repeatability, and allow for automation of production. Mills are available in four sizes from lab to production capacities.

FOREMOST MACHINE BUILDERS INC.

Supplies full range of granulators from 2 to 200 hp or more with standard fly-wheel drives. Press-side throat openings range from 6 x 8 in. to 16 x 20 in. with offset chambers; segmented rotors with two- or three-skewed, rotating knives; and two adjustable stationary knives. Optional proprietary Microsonic noise attenuation reportedly yields sound levels under 90 dbA.

Press-side "spiral-cut" line operates at 80-85 dbA and features rapid access and strip-away cabinetry. Basic models have throat sizes from 10 x 16 in. to 11 x 24 in. and drives from 15 to 40 hp.

Large-part and central/batch granulators up to 30 x 45 in. also available with proprietary sound treatment yielding 85 dbA or less for processing engineering thermoplastics. Special barrel and drum models offered, along with conveyor-fed and customized versions. Wide-throat, extra-heavy-duty sheet models to 150 hp handle up to 8000 lb/hr, while horizontally fed pipe and profile granulators can accommodate up to 31-in.-diam. plastic pipe.

Patented, dual-stage units with low hp can handle lumps and purgings. Operating at high rpm, units have an initial chipping knife stage using a solid rotor that feeds chips or shavings into a second stage for conventional granulating. Units come with one or two motors.

Special-purpose granulators include under-the-press, auger-feed sprue-and-runner grinders, hot-melt grinders, and special film granulators in both single-stage models for conventional film fluff and dual-stage versions for high-density, finer-mesh granulate.

Optional equipment includes pneumatic take-away of granulate, or right-angle auger unload system. Hush kits and acoustical enclosures are available for older units. All lines can be offered as part of a total blending, recycling and materials-handling system.

FRANKLIN MILLER, INC.

Provides many types and sizes of Delumper size-reduction equipment. These include the Pipeline Delumper, available in pipe sizes of 3 in. through 48 in., and Delumper Crushers, such as the compact 1082-A, 1075-L, 2085-L, and 967-M models. All are compact with low headroom and flanges for easy connection to pipe or duct system.

Delumper can chop; crush; shred; deagglomerate; accelerate flow; condition oversize materials directly in a fully enclosed sanitary chute, duct, or pipe system; prevent cross-contamination; crush tough material such as PVC; and prevent bridging problems. Ultra-compact Delumper (967-M) can be used for chopping and deagglomerating packed materials from 504b and 1004b bags and for reclaiming scrap materials.

GARLOCK INC. PLASTOMER PRODUCTS

Trost Air impact mills pulverize hard, brittle, abrasive, soft, and agglomerated material, as well as substances with low melting points. Directly opposing streams of compressed air produce powerful particle collisions for precise control of particle size. Capacities range from 100 g/hr to 5000 lb/hr, reportedly using up to 20% less energy than other units. A research model pulverizes samples as small as 10 g.

G.F. GOODMAN & SON, INC.

Provides five models of hydraulic guillotine cutters for scrap recycling and reclaim size reduction. Sizes range from a 19 in. wide x 8 in. high blade opening on the Bench Model to a 39 in. wide x 30 in. high blade opening on Model 20R. All models include compulsory, anti-tie-down two-hand controls and safety guards. All sizes can be supplied with automated conveyor and control systems to feed product into the cutter and carry away cut sections continuously.

GRANUTEC, INC.

Auger-Matic auger granulator is a closed-loop system for automatic recovery of sprues and runners. Available in four sizes with cutting-chamber dimensions of 6 x 6 in. with 5-in.-diam. auger, 8 x 10 in. with 6-in. auger, 10 x 12 in. with 8-in. auger, and 14 x 16 in. with 10-in. auger. Units feature on-line servicing and maintenance, positive-feed/continuous-operation design, safety features, double-scissor-cutting action, and compliance with OSHA electrical and noise standards. Options include Pick-A-Part parts and runner separator that can be driven from the auger shaft. Complete line of belt and air conveyors adapt to all Granutec equipment.

Beside-the-press granulators come with throat openings of 6 x 6 in., 8 x 10 in., 10 x 12 in., 12 x 16 in., 16 x 16 in., 16 x 24 in., 16 x 32 in., 20 x 30 in., and 20 x 48 in. Options include segmented rotors with double-sided removable knives, paddle-feed hoppers, and sound-proofing to meet 85 dbA.

Low-profile hot-melt granulators available for cutting polymers at high temperatures into granules for recycling.

TFG1012 granulator automatically receives and reclaims edge trim from sheet and film production lines. Unit has an automatic feed-roll attachment with variable-speed adjustment to synchronize speed of unit's three-bladed, open rotor with linear speed of the edge trim. Available with 7.5-, 10-, and 15-hp motors.

HAAKE INC.

Laboratory grinder cuts tough thermoplastics, elastomers and rigid polymers regardless of shape or thickness. Hopper chamber directs feedstock to front of cutting blades, which are mounted on a heavy-duty, motor-driven blade rotor located in a screened chamber. Motor control is easily accessible from side of hopper. Grinding action can be checked in an inspection chamber in large collection bin below.

HAMILTON AVTEC INC.

Offers granulators that include a tangential feed-cutting chamber. Through-put ranges from 35 lb/hr to giant units, which can granulate over 8800 lb/hr. Wide selection of rotor designs and numbers of cutting knives include straight cut, staggered cut and milling-type rotors.

Shredder options offered for certain larger models to crush and break up large parts before they enter the cutting chambers. These are recommended for purgings and other parts such as large molded containers.

Supplies belt conveyor systems for feeding scrap to the granulators and line of blowers, cyclones and dust collectors for grinder bin evacuation.

HERBOLD GRANULATORS USA

Offers reclamation equipment for use in recovery of raw materials, off-spec products, contaminated film and PET bottles. Heavy-duty granulators especially designed for lumps and purgings, com-pact-design granulators for sheet, film and bulky parts, and disc pulverizers (high-speed precision grinders for pulverizing medium-hard, impact-resistant and friable materials) are available. Also offered are washing systems for treatment of soiled, mixed-waste products such as contaminated film and PET bottles. Special grinders for specific requirements such as pipe and profile, and hot-melt granulators and guillotines also available.

HI-TORQUE SHREDDER CO.

Offers shredders, which come with inlet hopper and stand custom designed for each application, full electrical controls, and starting equipment. Automatic count and timed reversal are an integral part of machines, ranging from 10 to 300 hp with two counterrotating shafts--one at 33 rpm and the other at 25 rpm. These high-torque machines are said to be especially good for use with large plastic purgings, rejects and scrap, and for further size reduction and granulation.

Particle-izer granulator in sizes from 10 to 60 hp takes shredded material and reduces it to sizes as small as 1/8-in. diam.

HUTCHEON MACHINERY, INC.

Supplies used and rebuilt granulators and shredders from 1 to 500 hp. Units available with solid and open rotors, bin, drum, gaylord and blower discharges, and feed rolls for feeding film and sheet.

HYDRECLAIM CORP.

Offers scrap-reclaim, granulating and blending equipment. HBD (high-bulk-density) granulators with either single or dual chambers can be used with recycle or repelletizing systems or with company's S-Series shredders, which are offered for reduction of slabbed-off rolls, roll stock, haystack scrap, t-shirt punchouts, fibers, etc.

IMS CO.

Supplies upright and auger-type granulators. All feature an exclusive 20[degrees] double-shear blade action and are available with either standard two- or three-blade rotor or high-efficiency, multi-bladed, stagger-cut rotor. Units can handle all types of plastics from hard poly-carbonate to soft vinyls.

Upright granulators offered in six sizes ranging from 2 hp with a 7 3/8 x 6 3/4 in. throat to 20 hp with a 24 x 12 in. throat. All have heavy-duty casters.

Auger granulators have same grinding mechanics as uprights but are made for automated feeding, and can be fed by conveyor or placed under the press and fed directly from the mold. Auger grinders feature tilt-down auger barrels for easy access to cutting chamber.

INTERNATIONAL PROCESS EQUIPMENT CO. (IPEC)

Newly designed Rotomill air-attrition pulverizer takes chopped plastic and reduces it to powders for reprocessing. Processes materials to fine particle sizes without heat buildup normally associated with fine grinding. Many heat-sensitive materials can be ground without using cryogenic processing. Unit available in lab and three production sizes from 50 to 400 hp. Complete systems with feeders, collection and/or pollution control equipment, as well as computer-controlled operations systems offered. Test facilities available.

ITALIAN TRADE COMMISSION

A wide range of equipment for size reduction of plastics and rubber scrap is available from Italian companies.

JEFFREY DIV. DRESSER INDUSTRIES, INC.

Hammermills for shredding waste and recycled plastics, including plastic bottles, available in rotor sizes from 20 x 12 in. up to 40 x 72 in. Both swing-type and rigid hammers provide best option for any given application.

Shredder frames constructed of heavy plate and reinforced with structural shapes welded into a rugged unit. Internal surfaces protected by heavy-duty, removable, drilled and tapped, wear-resistant steel liners. Further protection is afforded by an integral metal trap, which provides a simple method for removing most tramp metal. Bottom discharge can be furnished with different bar openings, providing flexibility on product size produced.

JERSEY STAINLESS, INC.

Offers crushing machinery for use on friable and crushable plastics such as thermosets. Large purgings, sprues, runners, and reject thermoset plastic parts can be reduced to as small as 30 mesh. Crushers can be equipped with motor sizes from 5 to 30 hp. Complete machines are supplied, including inlet hopper, support stand, motor and drive, and full electrical controls and starters; and can be manufactured in basic carbon steel and stainless steel.

K-TRON NORTH AMERICA 

Slow-running, quiet beside-the-press granulators designed for injection and blow molding produce consistent regrind that is virtually free of dust and fines. Collection box is designed to be used as suction box in conjunction with vacuum hopper loaders and proportioning valves, thus creating a fully automatic scrap-reclaim system that reintroduces clean, dry regrind material back into the process. Rear-door access designed for quick clean and fast changeover.

In addition to sprues, runner systems and small parts, unit is recommended for croppings and nail punches on siding extrusion lines. Specialty models for blow molding accept hot material as well. Available with chute or steel-coil positive feed, unit mounts on casters for mobility and comes in a range of sizes.

KEMUTEC INC.

KEK universal size-reduction mills can accommodate an extensive selection of pinned disc and turbine/screen-type grinding media. Milling can take place under inert, cooled, or cryogenic conditions where appropriate. Mills typically operate in a range from 50-500 microns and up to 10 tons/hr.

KRAUSS-MAFFEI CORP.

Manufactures Zerglomat reclaim machines to densify low-bulk-density materials. Complete washing systems available to reclaim heavily soiled films such as agricultural mulches. Can separate rocks, dirt, metal, and paper from pellets. Systems for reclaiming clean or slightly soiled materials also available.

LASITS-ROHLINE SERVICE, INC. L-R SYSTEMS

Offers granulators in five sizes and power ranges: 8 x 6 in. throat, 3 to 5 hp; 10 x 11-in., 5-10 hp; 14 x 11-in., 71/2-15 hp; 20 x 17-in., 20-50 hp; and 28 x 17-in., 30-75 hp. Machines are tangential-feed, open-rotor type, offset behind the centerline of the cutting chamber for minimum flyback. Standard features include high-alloy steel knives, noise levels that meet OSHA requirements, heavy-duty construction, and adaptability to custom and automotive requirements. Double sound insulation is an optional "super silent" feature by which a level of 80 dbA can be achieved.

LITTLEFORD DAY, INC.

See Taylor-Stiles Div.

MICRON POWDER SYSTEMS ALPINE GROUP

Fluid energy milling system combines fluid-energy milling and size classification. Operating on the opposed-jet principle, machine accelerates entrained particles to supersonic speeds through opposed nozzles. Particles collide in the zone between nozzles. Subsequent integral air classification is said to allow precise product-size tailoring.

Opposed-jet milling system is said to meet milling requirements for everything from abrasive to low-melting-point materials, from pilot to large-scale facilities. Size classifiers recommended for precise powder specifications such as narrow size distributions and consistent mean-particle sizes in ranges from subsieve to submicron. Models have throughputs from a few grams to thousands of pounds per hour and are reportedly notable for repeatability and selectivity of cut-points.

MICRON POWDER SYSTEMS MIKROPUL GROUP

Pulverizers include:

Mikro Pulverizer models grind, blend and disperse in a single dustless operation. Units use rapidly moving hammers, are suited for both wet and dry grinding, and provide accurate particle-size control. Supplied with stirrup or bar rotors, machines are equipped with herringbone-slot, cross-slot and round perforated retaining screens.

Mikro ACM pulverizers are vertical impact mills designed for efficient transport of material from grinding element to separating element, with oversize materials going back to the grinding element. Unit can grind heat-sensitive material without the aid of coolants.

Mikro-Atomizer pulverizes and conveys material in one operation. With dual classification air, it produces smooth ultrafine powders in low micron range.

Mikro-Bantam pulverizer, an economical mill for lab, pilot plant or small batch production, grinds samples as small as 10 g for analytical purposes with minimal loss at rates of 200 lb/hr for small batches.

Laboratory ACM Grinder-Classifier is a 1-hp model for experimental labs where small quantities of material are available for feasibility studies and research. Completely self-contained system, Lab ACM comes with product collector, filter cartridge and instrument panel. It grinds and classifies a range of materials at a rate of 10-200 lb/hr. Mesh size is from 100 to 40 microns.

Also Mikro-Crusher in lab, standard, and heavy-duty sizes for crushing large feedstock; the Mikron-Separator, an air-classifier for particle sizes of 100 mesh to 5 microns; and Mikro-Samplmill, used in industrial and government labs for analytical grinding.

MILLER MANUFACTURING CO.

PVC pipe pregrinders and pulverizers are said to be capable of reducing up to 36-in.-O.D., 2-in.-thick scrap to powder. Systems feature two sizes of power feed chute and pregrinder, which reduce 20-ft sections of pipe to chips at up to 6000 lb/hr. Chips can then be pulverized to powder at speeds up to 1000 lb/hr. Units also reduce PVC siding and window profiles to powder.

MONTGOMERY INDUSTRIES INTERNATIONAL

Markets line of size-reduction machines for shredding and pulverizing most dry solid wastes. Machines are used for foam and other plastics, and automobile tires and tubes.

MUNSON MACHINERY CO., INC.

Screen-classifying SCC rotary cutter produces uniform particle size with minimal fines. At high speeds (up to 2800 rpm), unit uses impact to break apart friable materials. Tungsten carbide cutter inserts use shear to slice apart less friable materials. Helical design of rotor allows good air flow to keep cutter cool, and an increase in rates. Staggered parallelograms allow more cutting pressure with reduced horsepower. Complete test lab available to determine application feasibility.

NELMOR

See AEC/Nelmor.

NISSUI CORP.

Scutter press-side, sprue/runner granulators process sprues/runners into uniformly sized particles at low rotational speed of 30 rpm without using sizing screen. Unit virtually eliminates any powder and reduces fines. Lower rate of rotation provides quiet, dependable operation. Scutter is suited for automated systems, using robotics, sprue pickers, or conveyors.

O&E MACHINE CORP.

Manufactures low-speed, high-torque shredders for bulk reduction (to 80%), size reduction for recycling, reject product destruction, and solids break-up. Units come in sizes from 10 to 200 hp and are suitable for processing purgings, runners, and any kind of plastic for recycling. Heat is not generated during processing, thus eliminating sticking and rebonding.

PALLMANN PULVERIZERS CO., INC.

Offers pulverizers for processing virgin material, as well as recycled material. Turbo, disc and counterrotation universal mills used for one-pass or closed-circuit grinding. Turbo and disc mills suitable for ambient grinding of heat-sensitive material.

Mill grinding components easily interchanged, depending on material and particle size requirements. Turbo and pin mills available for low-temperature operations from chill grinding, using a pre-cooler, or as an integral part of complete grinding installations for true cryogenic processing.

Granulators available in various configurations with slant, double-slant, or scissor-cut rotors ranging in diameter from 6 to 100 in. Models for long lengths, such as siding or window frames, pipe crushers for pipes up to 60-in. diam., as well as precision knife mills for grinding film, are standard.

Also offered are densifying systems (PFV) for continuous low-temperature converting of thermoplastics such as film, foam, and fiber to free-flowing granules. Compounding can be incorporated into the system.

PLASTICS ANCILLARIES CORP.

Offers grinders from small 2-hp, beside-the-press units, to auger, soundproofed low-profile grinders, all in sizes to large 70-hp units. All use segmented blades for better cuts and large flywheels for reportedly increased efficiency and economic usage. Specially designed screen removal is said to make cleanout very fast and simple.

POLYMER SYSTEMS INC.

Press-side granulators feature double-angle and steep-angle rotor knives for higher throughput rates, fewer fines, and less flyback. Feed throats range from 6 x 8 in. to 16 x 32 in. Machines available in either SPL (below 90 dbA) or Silenator (below 80 dbA) models from 5 to 40 hp designed for easy service and cleaning.

Auger-feed granulators in two throat sizes, 8 x 8 in. and 10 x 10 in., are offered in both SPL (below 90 dbA) and Silenator (below 80 dbA) versions. Silenator is completely enclosed behind a hinged, soundproofed, safety-interlocked cover. SPL, without sound enclosure, has a specially-designed, pull-away guard and electrical panel, and is safety interlocked. Cutting chamber, screen, drive components, and controls can be reached for fast service. Many machine options and custom designs available, in addition to blower evacuation and part-separation systems.

E-Series granulators in three sizes (4 x 6 in., 1.5 hp; 6 x 8 in., 5 hp; and 9 x 12 in., 5 hp) available. Cutting chamber provides the same features as press-side granulator, but is specifically designed for automated cycle-feed from sprue pickers or controlled hand-feed applications. Machine infeed and evacuation can be designed to meet special requirements.

Shurfeed granulators are designed for machine-side and central granulation of tough, bulky parts, bottles, pails, thick sections, sheet and film. Cutting-chamber design allows material to fall directly in front of the rotating knives and to be pulled quickly through the cutting action for fast granulation without bounce and flyback. Throat sizes of 16 x 21 in., 16 x 27 in., and 18 x 36 in. are offered, and soundproofed with up to 75 hp and 2000 lb/hr throughput.

Central granulators in 15 x 26 in. and 20 x 40 in. heavy-duty models are designed for continuous, high-volume recovery of tough materials. Horsepower ranges between 50 and 150 with throughput up to 3500 lb/hr.

Hot-melt granulators (HMG) and material recovery systems are offered for extrusion, extrusion blow molding, wire and cable, and compounding operations. Cutting-chamber design is said to allow air cooling of hot granulate for fast throughput without gumming or clogging, and to ensure operating noise levels below 80 dbA for most applications. Units can be used to recover most hot materials up to 600 F without precooling. HMG systems include granulator, blower, cyclone separator, and related duct work. All system components are sized and matched to specific requirements. Standard 8 x 8 in., 10 x 10 in., and 16 x 27 in. throat sizes available. Throughputs up to 1200 lb/hr. Water-cooled models available.

Feed-roll granulators can granulate all types of film and thin sheet. Double-angle cut is suited to OPP and LLDPE film. Feed throats up to 15 x 26 in. available.

PRECISION CUTTERS, INC.

Offers continuous, in-line granulation systems for film edge trim and guillotines.

PROCESS CONTROL CORP.

Manufactures film, sheet, and fiber granulators featuring double-angled knives in the cutting chamber. Sizes range from 6 x 8 in. to 15 x 27 in. with 5-to 100-hp motors. Options include pneumatic discharge, roll feeders, edge-trim inducers, and cutter blowers.

QUADRO, INC.

Quadro Comil conical mill uses low rpm, centrifugal acceleration, vortex flow pattern, 360[degrees] discharging screen, and specially shaped grinding elements. Resulting performance reportedly provides high throughput capacity per hp input, low fines even with fragile materials, low dust, quiet operation, and elimination of overworking of material and frictional heat.

Unit comes in five sizes and 14 configurations. Capacities range from 250 to 50,000 lb/hr or more.

RAMCO DIV. MOSSBERG INDUSTRIES INC.

Beside-the-press and central granulators granulate most sizes and shapes of thermoplastics, including plastic sheets and film. Sizes range from the 810, designed to handle a variety of small molded parts and runners, to model 1527 and model 2436, available with 100-and 150-hp drives. Models 1527 and 2436 granulate 12-in.-diam. PVC pipe and 55-gal blow molded barrels, respectively. Line is offered in eight throat sizes: 8 x 10 in., 8 x 12 in., 10 x 12 in., 14 x 18 in., 14 x 36 in., 16 x 54 in., 15 x 27 in. and 24 x 36 in.

Three small sizes (8 x 10 in., 10 x 12 in. and 14 x 18 in.) offered in two styles. The first has a conventional straight, reversible knife and the second a herringbone-slant, reversible rotor knife. Sound-enclosed design is achieved by angling rotor and bed knives in a "V" shape to intersect at cutting-chamber centerline. This design achieves the highest overall slant angle in grinding. Impact forces are distributed uniformly within the cutting chamber to equalize and minimize stress on rotor and bearings, thus prolonging bearing life and lowering horsepower requirements.

Knives are reversible, giving two sets of knives in one. Access to cutting chamber has been made easier by a roll-back hopper design with electrical interlock on hopper and screen support. Machines are completely sound-enclosed; the largest is said to operate at 80-85 dbA and the smallest 810 model in the 70 dbA range.

Units can be adapted with vacuum unloading equipment, fan conveyor systems, pipe hoppers and roll-feed units. Motor-overload percentage meter is mounted on stop/start control station as a standard feature on the large herringbone and can be provided on other units.

Hot-melt unit has been added to the line for granulating molten plastic materials directly from the die of an extruder, delivering up to 400 lb/hr of PVC. It has a 5-hp motor drive and 5-hp fan conveying system.

New staggered, segmented rotor design, MI Series, is available in throat sizes of 8 x 10 in., 8 x 14 in., 10 x 16 in., 12 x 24 in., and 13 x 23 in., from 5 to 30 hp. Units are sound-proofed, with several options available. With the staggered design, horsepower requirements are said to be reduced by half.

RAPID GRANULATOR, INC.

Offers beside-the-press, auger, in-line, central, thermoform, hog-type, and hot-melt granulators. Also offers belt conveyors, sound enclosures and rooms, pneumatic conveying systems and turnkey operations. Granulator features include scissor-cutting action, adjustable rotating knives, herringbone "V"-design open rotor, tangential feed-cutting chamber for positive feeding of bulky parts, and flywheel-type pulley. Closed or semi-closed rotor designs are used for lumps or chunk granulation.

Beside-the-press models, featuring tangential feed and scissor cut, range in throat sizes from 3 x 6 in. to 18 x 31 in., motor sizes from 2 to 60 hp, and throughput capacities from 170 to 2500 lb/hr.

For blow molding, models handle hot parisons, parts, or lumps, a feature suitable for in-line operation. Models range in throat sizes from 7 x 9 in. to 32 x 50 in., motor sizes from 5 to 200 hp, and throughput capacities to 6000 lb/hr. Series runs at noise levels of approximately 82 dbA.

Central heavy-duty models range in throat sizes from 12 x 24 in. to 32 x 50 in., motor sizes from 40 to 250 hp, and throughput capacities from 1400 to 10,000 lb/hr.

Hog-type, extra-heavy-duty models offer 12 x 24 in. to 24 x 42 in. throats, 50-to 100-hp motors, and 900 to 6000 lb/hr throughputs.

Hot-melt models for granulation at 300-500 F have 7 x 9 in. to 32 x 50 in. throats, 5- to 250-hp motors, and 165 to 3000 lb/hr throughputs.

RML COMMANDER DIV.

GMS1 series Commander granulators produces geometrically shaped particle sizes for recycling. Features include:

* Indexed helical cutting angle for greater surface per width of machine.

* Cutting chamber of clamshell design, which allows 100% access to interior for easy cleaning and maintenance.

* High-chrome, high-carbon steel, interchangeable, slant-type cutting teeth.

* Constant curing cycle.

* Interchangeable bed knives adjustable to minimum clearance of 0.006 in. with push-pull screws for quick setup.

* Heavy-duty pillow blocks.

* Heavy-duty modular construction adaptable from 5- to 60-hp drive.

* Feed chute assists in increased capacity and provides tangential circumference feeding at curing teeth, reducing flyback and noise level.

* Structural-beam design allows for full cleaning efficiency.

* Complete sound attenuation.

* Open- and closed-rotor designs that are interchangeable with the same heavy-duty structural frame.

ROTOGRAN INTERNATIONAL INC.

Offers acoustically insulated granulators in two styles from 10 to 60 hp and throat sizes from 9 1/2 x 12 1/2 in. to 22 x 36 in. Units are heavy-duty with flanged, piloted cartridge bearings; one-piece weldment cutting chambers; and heavy-gauge, structurally tubed frames for vibration-free operation.

Also offers Rotogran 10-hp augerfeed granulator that fits under the press and eliminates handling of materials to be ground. Standard equipment includes a metal detector in trough, blower/cyclone system with heavy-duty flexible steel hoses, and an acoustically insulated chute for manual feeding that can accept 4-liter bottles. Rotor is located offset in the cutting chamber and does not interfere with chute opening.

SANT'ANDREA NOVARA

See Louis P. Batson Inc.

SATURN SHREDDERS DIV. MAC CORP.

Offers low-speed, high-torque rotary shear shredders to preprocess chunks, drools, flashings, purgings, thin film and post-consumer plastics into a uniform size suitable for secondary high-speed granulation or to be fed directly into extruders. Sawing and guillotining are virtually eliminated. Other benefits reprotedly include increased throughput, efficient downstream operation, and improved metal-detection capabilities.

SHRED-TECH LTD.

Designs and manufactures reduction systems for post-consumer and industrial plastic waste. Product line includes low-speed, high-torque shredders, granulators, conveyors and separation equipment. Specializes in reducing difficult materials such as car parts, film, bulky items and fiberglass. Engineering consulting available.

SPADONE, INC.

Offers 24-in. guillotine cutter for recycling and reclamation. Also used to cut plastic compounds and other dense materials.

Unit is fully contained, air-operated and designed to cut bales without the aid of water or other lubricants. It features a 26-in.-wide blade with a 24-in. curing width. Tunnel guarding and dual push-buttons that must be depressed simultaneously to actuate the knife are provided to ensure operator safety.

Hydraulically operated bale cutters also available in 24-, 29-, 39-, 51-, and 60-in. models, and may be customized to meet specific requirements.

SSI SHREDDING SYSTEMS, INC.

Slow-speed, high-torque shredders process tough material like drums, film, purgings, bales and parts. Features include low-noise level, patented shock protection, and proprietary bearing protection. Cutters designed for long life, typically one to three years.

STERLING, INC.

See Ball & Jewell Dip.

TAYLOR-STILES DIV. LITTLEFORD DAY, INC.

Size-reduction equipment can be teamed with materials-handling equipment for integrated continuous systems for size reduction and/or waste reclamation/recycling.

Basic design of high-speed rotary mill permits continuous size reduction and blending of wet or dry materials, heated or chilled. By interchanging integrated components, mill adapts to feed-controlled fine grinding (into the lower micron range); accurate wet or dry granulation; controlled or gravity-feed sizing; slurry milling and continuous in-line grinding of wet or viscous masses; size reduction of continuous sheet or web products; single-stage blending, dispersion and size reduction; decaking, prebreaking or pulverizing. Available to 32-in. widths, with tip speed of hammers to 20,000 ft/min. Blade, rotor, screen and throat options available.

Guillotine cutters for low-cost cutting of bulk, baled or roll materials available in different widths and travel strokes. Automatic or semi-automatic, hydraulically powered units utilize a blade that shears against floating bed knife for simple, controlled, low-cost cutting. Choice of ram pusher, spiked fingers with oscillating conveyor, belt or roller bed feed arrangements.

Roll splitter guillotine allows mounting of a roll on a mandrel for longitudinal cutting of rolls to remove recyclable materials from rolls with high curing force.

Rotary cutters for precision or random curing of plastics, film, rubber, textile fibers, fiberglass, etc., can be used singly or in tandem setup for continuous processing, or for staged size reduction of materials in recycling/reclamation systems. Units have multiple rotating knives and a bed knife for shear curing action. Can be used as a precutter after a guillotine or before a granulator for reduction of bulky and/or baled stock. Options include special feed and discharge systems, multiple fly, knife arrangements, different knife designs/materials, and metal detectors. Standard sizes to 48-in. widths.

TOSKO PLASTICS MACHINERY, INC.

Offers two series of granulators encompassing six models, covering beside-the-press applications and auger-feed granulators. Units incorporate a special inclined rotor with multiple blades and low-rotor speed for lower noise, less flyback and reduced fines generation. Designed for easy clean-out with features to prevent jamming.

VIDEX MACHINERY CORP.

Sells rebuilt and guaranteed granulators from 1 1/2 to 300 hp. Units available in various throat sizes with both solid and open-rotor designs; and with pull-out bin discharge, drum or gaylord high discharge, or pneumatic discharge.

WEDCO INC.

Manufactures grinding systems designed for efficient reduction of plastics into fine powders.

WYSSMONT CO., INC.

Offers Triskelion lumpbreaker, Double Rotocage lumpbreaker, and Single Rotocage lumpbreaker for friable solids such as agglomerates, wet cakes, crystals, extrusions, pellets, waxes, fibers, chunks, slabs and sheets that normally do not require ball, hammer, or pin mills.

Rotocage lumpbreaker, consisting of one or two variable-speed, cylindrical squirrel cages rotating in a metal housing, breaks up feed into finely divided solid particles.

Triskelion lumpbreaker's slowly rotating blades or pins intermesh with stationary ones to reduce relatively large feed particles to 1 in. or finer.

THE YOUNG INDUSTRIES, INC.

Single- or double-runner attrition mills designed for grinding applications. Units have various styles of grinding plates, adjustable gap clearance between grinding surfaces, and predetermined runner-head speeds for grinding, pulverizing, granulating, or blending powder mixtures. Single-runner models are for grinding dry powder, while double-runner mills work equally well with dry, damp or oily materials. Equipment available in carbon steel, stainless steel or special alloys.

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