Drobilky

Optimal Material Recycling

A complete range of granulators for plastic processing plants and recycling plants

Screenless granulators Conventional granulators with knives and screen

High quality regrind User friendly and easy operation

Beside-the-Press and Central Granulators

Progress through Innovation

SUMO Screenless Granulators Low speed screenless granulators – rotor speed 27 rpm.

Designed to process hard plastic materials from injection molding machines.

Beside-the-press granulator for feeding by hand or robot.

SJ2 open

Advantages of Screenless Granulators

Low speed technology reduces wear of cutting chamber components, knives, rollers and combs.

Reduced heating of material: no deterioration of the plastic molecular structure.

Reduced dust: Very few fines.

Energy efficient.

Quiet operation.

Easy use and cleaning: knives and rollers can be disassembled for sharpening.

Proven Quality for Injection Molding Plants Cutting Chamber

- Reversible knives, combs and counter combs provide double lifetime.

- Treated and knives, rollers and combs can be sharpened.

- Rollers with helical configuration for staggered cut.

- Various cutter sizes and shapes to suit the application.

- Double opening.

Hopper

- Designed for all types of feeding.

- Hopper with large opening.

- Top feed chute, viewing window and anti-reject curtains.

Material Extraction

- Regrind collection bin supplied as a standard in stainless steel for optimum regrind quality.

Electrical Equipment and Safety

- Electrical cabinet with “On/Off” push button with “Emergency Stop”.

- Two safety switches on hopper and regrind collection bin.

- Corresponding to CE standards.

Sound Level

- Less than 80 dB (A) (depending on material and throughput rates).

Options (All SUMO Range)

- Automatic reversing system (ARS).

- High level detector.

- Higher base for larger capacity collection bin and/or 360° swivel outlet.

- Motor power.

- Different hopper designs.

- Water cooling system.

- Surface treatment of cutting chamber components for wear resistance.

SJ2 completely open

Series SUMO Minor Minor 2

For Small and Medium Sized Sprues and Parts

2 models available.

Compact footprint.

Low feed height.

Power up to 1,1 kW (Minor 1) and 1,5 kW (Minor 2) by gear motor directly on the shaft.

Polycarbonate hopper.

Option: Soundproofed sheet metal hopper (stainless steel inside).

Type SUMO

Cutting Knives Rollers Chamber mm

Power kW (option)

Rotor Speed rpm (50 Hz)

Average Throughput kg/h*

Minor 1

240 x 160

1

2

0,75 (1,1)

27

7

Minor 2

240 x 249

2

3

1,1 (1,5)

27

12

* Depending on nature, shape, density of sprues/parts to be processed and regrind size of toothed rollers.

Series SUMO Minor with Auger Minor Auger Granulator

For Receiving Sprues Directly under the IMM This granulator is equipped with an auger for placement directly under the injection molding machine.

Design based on the cutting chamber dimensions of the Minor 1.

Options: - Different lengths of auger opening: 600x230 mm.

- Metal detection system “METALSTOP” (patented).

- Double ARS (automatic reversing system) on auger and rotor.

- High level detector.

- Hopper on auger trough for robot feeding.

- Reversible execution: gear motors and auger screw opening on the other side.

- Auger trough height of 543 mm and bin with 360° swivel outlet.

SUMO

Minor 1 Auger

Cutting Knives Rollers Chamber mm

Power kW (option)

Rotor Speed rpm (50 Hz)

240 x 160

0,75 (1,1)

27

1

2

Average Throughput kg/h* 7

* Depending on nature, shape, density of sprues/parts to be processed and regrind size of toothed rollers.

GxH

D

J

I

D

D1

F

A1

B1

D1

E A

C

B B

SUMO

Dimensions A

B

C

D D1

E

Weight F

G

H

I

J

kg

Minor 1 Auger 1580 626 103 618 1023 205 60 400 230 563 356 160 Specifications subject to change without notice.

C

SUMO

A

Dimensions

Weight

A

A1

B

B1

Minor 1

510

318

420

400

759 1256 1308

160

Minor 2

598

406

420

400

759 1256 1343

180

Specifications subject to change without notice.

C

D

D1

kg

Series SUMO Junior Junior 2 with ARS (automatic reversing system).

For Medium Sized Sprues and Parts

3 models available.

Gear motor with coupling is easy to disconnect to facilitate maintenance.

Power : 1,5 or 2,2 kW by gear motor and coupling.

Soundproofed sheet metal hopper (stainless steel inside).

Option: Polycarbonate hopper.

SUMO

Cutting Knives Rollers Chamber mm

Power kW (option)

Rotor Speed rpm (50 Hz)

Average Throughput kg/h*

Junior 1

240 x 225

1

2

1,5 (2,2)

27

10

Junior 2

240 x 346

2

3

2,2

27

20

Junior 3

240 x 467

3

4

2,2

27

30

* Depending on nature, shape, density of sprues/parts to be processed and regrind size of toothed rollers.

Series SUMO Junior Double JD4

For Large Sprues and Parts JD granulators are fitted with a double rotor which allows for processing of bulky sprues and parts as well as for higher throughput rates. e.g. large automotive parts: bumpers, dashboard etc.

The three models JD4, JD6 and JD8 use interchangeable cutting components.

Gas-spring assisted hopper opening.

Vacuum bin with 360째 swivel adapter mounted on casters.

Option: The three models JD43, JD63 and JD83 have a third shaft arranged in hopper for feeding the parts into the cutting chamber.

Type SUMO

Cutting Knives Rollers Chamber mm

Power kW (option)

Rotor Speed rpm (50 Hz)

JD4

530 x 346

2 x 2,2

27

40

4

6

Average Throughput kg/h*

JD6

530 x 467

6

8

2 x 2,2

27

60

JD8

530 x 588

8

10

2 x 2,2

27

70

JD 83 with feeding shaft in hopper.

* Depending on nature, shape, density of sprues/parts to be processed and regrind size of toothed rollers.

Type SUMO

B1 B1

D

D

D1

A1

A

C

B

B

Dimensions

Weight

A

A1

B

B1

C

Junior 1

1134

385

456

339

821

1360 1844

200

Junior 2

1255

385

456

339

821

1360 1844

250

Junior 3

1376

435

456

339

821

1425 1944

300

JD4

1256 536

790

730

859 1551 2140

600

JD6

1377 536

790

730

859 1551 2140

650

JD43

1416

432

790

525

923 1638 2033

700

JD63

1547 550

867

600

1135 1837 2174

750

JD83

1715

926

800 1541 2389 2741

850

870

Specifications subject to change without notice.

D

D1

kg

Series MB Plastic Granulators MB Series granulators are conventional granulators with knives and screen for versatile granulation of plastic materials. Compact design for beside the press applications.

Advantages of MB Series with Open Rotor Design Excellent regrind quality.

The fixed bed knives as well as the rotating knives can be gapped after sharpening by adjusting screws in a pre-adjustment fixture, thus providing a constant cutting diameter and always the same distance to the screen.

This guarantees constant and excellent regrind.

Slant knives for scissor type cutting action for reduced noise and power consumption. Treated high alloy steel knives.

The open rotor provides excellent ventilation of the cutting chamber to reduce the risk of melting materials when recycling warm parts or sprues.

The tangential feed cutting chamber allows for a more positive ingestion of parts into the downstroke of the cutting knives to maximize granulator efficiency.

Constant cutting diameter.

Rugged Design for Maximum Efficiency Cutting chamber MB1818.

Cutting Chamber

- Rugged steel construction.

- 2 fixed knives maintained on rugged supports.

- “Open” rotor fitted with 3 or 6 rotating knives (according to model) resting on two bearings.

- Rotor mounted on sealed bearings with dust retainer to reduce maintenance.

- Easy removal and cleaning of screen.

Motor Drive

- Via high output belts and inertia pulley (option on MB1818 and MB1836 – 2,2, KW).

- Automatic belt tensioner ensures optimal pulley drive.

Hopper

- Designed for all types of feeding.

- Soundproofed hopper with large chute opening and anti-flyback curtain.

- Hopper rotates 180° in order to place the granulator as near as possible to the injection molding machine.

Material Extraction

- Regrind collection bin with flag window allows manual emptying or vacuum evacuation.

Electrical Equipment And Safety

- Electric cabinet integrated into the granulator allows adding options later.

- Control 24 V standard.

- Safety system to open the granulator by safety switch corresponding to CE standards.

Sound Level

- All MB series granulators have complete integral soundproofing for less than 80 dB(A) sound level (depending on material and feeding of granulator).

MB1836 and MB2142 equipped with a double set of fixed and slanted knives.

Options

- Inertia pulley MB1818/MB1836.

- With motor output 4 kW and 5,5 kW, inertia pulley in standard configuration.

- Capacitive or mechanical high level indicator.

- Granulator prepared for material extraction.

- Phase detector.

- Hopper for back feeding (MB2121/MB2142).

- Cutting chamber with wear plates.

- Water cooling.

Series MB MB1818

This series includes 4 compact and multi-purpose granulators with different capacities in order to recycle sprues and plastic parts directly at the injection molding machine.

Advantages:

- Inclined cutting chamber for tangential feed.

- High quality regrind due to low rotor speed (250 rpm).

- Moving and rotating knives can be sharpened.

- Granulator delivered with pre-adjustment fixture for fast knife changes.

- Low noise level due to full sound enclosure.

- Granulator pre-equipped with electrical cabinet to receive all electrical options later on.

MB1836 open

Easy Maintenance

- The design and the simplicity of the hopper opening allow faster access to the cutting chamber and facilitate cleaning and maintenance operations.

- The screen, which can be changed rapidly, minimizes the time for cleaning when changing materials frequently.

Type ø Rotor Rotor Speed

mm rpm

Cutting Power Inertia Chamber kW (option) Pulley mm

Knives fixed

rotating

Screen Holes ø mm

Throughput kg/h*

MB1818 140 250 180 x 180 2,2 – (4)

2,2 kW Option 4 kW Standard

2

3

4 - 5 - 6 - 8

50

MB1836 140 250 180 x 360 2,2 – (4)

2,2 kW Option 4 kW Standard

2 x 2

2 x 3

4 - 5 - 6 - 8

80

MB2121

200

250

210 x 210

4 – (5,5)

Standard

2

3

4 - 5 - 6 - 8

70

MB2142

200

250

210 x 420

4 – (5,5)

Standard

2 x 2

2 x 3

4 - 5 - 6 - 8

110

* Depending on the nature, shape and density of products to be processed. Under manual feeding conditions, tests for the determination of the throughput were carried out with PE/PP caps.

A1

B1

D

MB Series

MB1818

C

A3

Weight

A1

A3

B

B1

C

D

kg

620

476

730

495

442

700

1480

225

MB1836

620

476

730

675

604

700

1480

270

MB2121

700

492

755

535

452

660 1630

290

MB2142

700

492

755

745

662

660 1630

370

Specifications subject to change without notice.

A B

Dimensions A

Economical Recycling Wittmann Can Supply the Complete Recycling System Including Robot – Granulator – Vacuum loader with dual material loading by proportioning valve or by gravimetric blending.

One complete package for convenient installation and perfect operation!

BVI Series Auger Granulator Conventional granulator with Archim the edean screw. Installation directly under the injection molding machine or under robot (with feed hopper - option).

Auger opening 600x230 mm. The very compact and flexible design of the BVI allows for several configurations of positioning the granulator.

Cutting chamber with open rotor design like MB models.

Safety

Three electric safety devices prohibit the start-up of the granulator while open during maintenance. External safety device pre-wired in the electrical cabinet. A magnetic switch placed on the trough to ensure safety in case of below-the-press positioning or to ensure the presence of a feed hopper or safety guarding.

Options - Metal detection ”METALSTOP“ (patented).

- ARS automatic reversing system.

- High level detector.

- Treated cutting chamber.

- Hopper on auger trough for robot feeding.

- Different length of auger opening; 600x230 mm.

- Longer auger tube (+200 mm).

- Auger trough height 530 mm (depending of motors power).

- Water cooling system on auger screw tube.

- Box for remote start-up.

- Optional motor powers.

- Cutting blade in the auger trough.

BVI

140 x 160

2,2 (4)

2

3

Rotor Speed rpm

Weight kg

350

270

320 160

126

230

867

Cutting Power Blades Chamber kW (option)

mm fixed rotating

400

435

Master

1394 68

640 (530 mini)

Specifications subject to change without notice.

328 594

Dimensions BVI

800 volume: 7L volume H = 530: 2L

495 642

144

MC Series for Medium to Large Throughputs Heavy duty granulators. They are intended for recycling beside the IMM (MC 34) and/or for centralized recycling (MC 46/MC 70) of runners, parts and various scrap.

Main features: Tangential feed cutting chamber for optimal acceptance of parts.

Very good regrind quality due to reduced rotor speed (according to model 430 to 730 rpm).

Quick and easy knife maintenance with pre-adjustable knifes that can be sharpened.

Herringbone rotor Fitted with 3 or 5 blades (depending on the model and /or application)

Advanced soundproofing.

Rugged, High Performance Design

Cutting chamber of MC 46-60

Cutting Chamber

- Solid steel welded construction.

- Screen with standard hole diameters from 6 to 12 mm according to model and application, mounted on screen support, opened via gas or hydraulic cylinder (according to model).

- Replaceable wear plate on attack side in standard configuration.

Rotor

- Herringbone rotor supported on 2 heavy-duty outboard pillow block bearings.

Fitted with 3 or 5 blades.

- Mechanical brake.

5-blade rotor of MC 70-100

Feeding

Blades

- Made of high alloy hardened steel; can be sharpened several times.

- All blades are pre-adjustable using a pre-adjustment fixture supplied as standard, which simplifies installation and guarantees constant cutting circle and thus consistent regrind quality.

- Scissor style cutting for low energy consumption.

Drive

- Rotor driven by pulley and belt.

- Inertia flywheel in standard configuration.

Electrical Equipment

- Separate electrical control cabinet with star delta soft start (MC 46-60 and larger).

- Control circuit: 24V for MC 34 - 230V for others.

- Soundproofed feed hopper can be easily adapted for all types of feed methods – robot, conveyor or manual.

- Hopper opening assisted by cylinders (manual, electrical or hydraulic handling depending on the model).

Emptying

- All regrind collection bins are prepared for blower evacuation.

- Manual evacuation (collection bin with viewing window) available on request (depending on the model).

Sound Control

- Models MC 34 and MC 46 are supplied with integrated and optimal soundproofing.

- Option for MC 70: soundcabinproof enclosue.

MC Series MC 46-60 with conveyor belt and large trough, tunnel metal detector and soundproofed feed chute.

The MC Series product range consists of 6 models. The granulators of the MC range are compact and general-purpose granulators for medium to large throughputs.

Model

Cutting chamber mm

Power (standard) kW

Average throughput kg/h*

MC 34-44

340 x 440

11

200 – 300

MC 34-60

340 x 600

11

250 – 450

MC 46-60

460 x 600

22

300 – 700

MC 46-88

460 x 880

30

300 – 800

MC 70-80

690 x 800

55

800 – 1000

MC 70-100

690 x 1000

75

1000 – 1500

Evacuation by centrifugal fan and cyclone.

* Depending on nature, shape, density of sprues/parts to be processed. Actual throughput may vary.

Complete Solution According to Customer Requirement

- Manual feed.

- Robot feed (optional).

- Conveyor belt feed (optional).

- with metal detector plate or tunnel

style metal detector (optional).

- with soundproofed tunnel (optional).

- According to the customer’s application different evacuation and dedusting systems are available (optional).

Model

A

B

B1

B2

C

C1

D

E

F

1310

1020

440

350

300

640

1515

320

2220

MC 34-60

1310

1180

600

350

300

790

1515

320

2220

MC 46-60

1650

1310

600

430

250

820

1610

460

2530

MC 46-88

1650

1610

880

700

250

590

1730

460

2650

MC 70-80

2590

1644

800

700

1160

–

2945

690

4510

MC 70-100

2270

1910

1000

900

–

1550**

2600

740

3650

MC 34-44

** Hopper opens forward.

D

F

E

B1

J

C1

A

Specifications subject to change without notice.

C

B

B2

MC 70-100

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Progress through Innovation BP00000014 – 0701-00