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Battery Recycling Equipment Manufacturing Engineering · Manufacturing · Global Service
Crushing Equipment

Double-Shaft Shredder

Low-speed, high-torque twin-shaft shredding equipment for the coarse reduction of bulky, irregular and difficult recycling feedstock before conveying, secondary crushing, screening or material recovery.

Capacity Range 2–60 t/h
Shaft Speed 14–20 rpm
Available Models 6 models
Typical Output 30–100 mm
01 / Equipment overview

Primary coarse size reduction for difficult feedstock

A standalone shredder or the first processing stage of a complete recycling system.

The BREM Double-Shaft Shredder uses two counter-rotating cutter shafts to grip, shear and tear bulky or irregular material into a manageable coarse fraction. It is suited to containers, appliances, pipes, pallets, tires, selected scrap metal, RDF and other compatible waste streams. The welded steel body, reinforced structure and low-speed high-torque drive are designed for stable industrial operation. Cutter material and geometry should be selected according to feed composition, size, abrasiveness and the required downstream result.

Model size alone does not determine suitability. Feed dimensions, material composition, steel thickness, contamination, required capacity, target output and downstream process interfaces should be evaluated together.

Primary coarse size reduction for difficult feedstock

02 / Operating Principle

How the Double-Shaft Shredder Works

Material is pulled into the cutting chamber by two counter-rotating shafts. Intermeshing cutters apply low-speed, high-torque shearing force and reduce bulky feedstock into a controlled coarse fraction for downstream processing.

How the Double-Shaft Shredder Works
01

Feeding

Bulky or prepared material enters the hopper and is guided toward the cutting chamber at a controlled rate.

02

Gripping

Teeth on the two counter-rotating shafts catch the material and draw it into the active shredding zone.

03

Shearing & Tearing

Intermeshing cutter discs apply low-speed, high-torque force to shear, tear and open the feed into a coarse fraction.

04

Discharge

Reduced material exits the chamber for collection, conveying, secondary crushing, screening or separation.

Low-Speed Operation
High-Torque Shearing
Continuous Discharge
03 / Suitable feedstock

Suitable materials

Hollow containers

Hollow containers

Plastic beverage containers, plastic drums, steel drums, packaging boxes and industrial barrels.

Waste appliances

Waste appliances

Television, washing-machine and refrigerator housings after suitable preparation.

Pipes & fittings

Pipes & fittings

Large pipes, pipe fittings and PE pipe sections suitable for coarse size reduction.

Pallets & boards

Pallets & boards

Wood pallets, plastic pallets and forklift pallet boards.

Waste tires

Passenger-car tires and truck tires, subject to model and cutter selection.

Selected scrap metal

Automotive shells, aluminum alloy, cast-aluminum scrap, engine housings, lead and steel plate up to approximately 5 mm as stated in the source material.

Municipal, organic & RDF waste

Kitchen waste, household waste, animal carcasses, RDF-derived material, medical waste, biomass straw and garden waste; project-specific pretreatment and compliance confirmation required.

Rubber head scrap & paper-mill rope

Rubber head/offcut material and paper-mill twisted rope or pulper rope.

04 / Machine Architecture

Main structure & components

Equipment Anatomy Double-Shaft Shredder
Main structure & components
Component Index
01

Feed hopper

Receives bulky feed and guides it toward the cutting chamber.

02

Twin cutter shafts

Counter-rotate to grip and pull material through the active shredding zone.

03

Intermeshing cutter discs

Apply shearing and tearing action for primary coarse reduction.

04

Gear reducer & drive

Converts motor power into low-speed, high-torque shaft rotation.

05

Bearing supports

Carry shaft loads and help maintain stable alignment during operation.

06

Reinforced welded frame

High-strength welded steel structure with reinforcement plates supports operational loads.

07

Discharge section

Transfers reduced material to collection or the next processing stage.

05 / Engineering

Cutter & Shaft System

Core mechanical assembly Cutter & Shaft System
Cutter & Shaft System
Engineering proof

Twin counter-rotating shafts carry intermeshing cutter discs that pull material into the active zone and apply high torque for gripping, shearing and tearing. The welded body and reinforced frame support operational loads, while cutter material and geometry can be selected around different feedstocks and production duties.

Body Construction Welded steel body
Cutter Material Chrome-silicon alloy
Blade Hardness ≥ HRC55
Shredding Action Intermeshing twin-shaft shearing
Output Character Relatively uniform coarse fraction
Cutter Configuration Feedstock-specific
Operation Button control / stable operation
Feeding Option Conveyor integration available
Configuration note Cutter material, tooth geometry and disc arrangement should be selected according to feedstock hardness, dimensions, metal content, wear characteristics and required coarse output. Conveyor feeding can be integrated where continuous loading is required.
06 / Model data

Technical specifications

2–60 t/h Capacity Range
14–20 rpm Shaft Speed
6 models Available Models
30–100 mm Typical Output
ModelShaft SpeedCapacityCutter QuantityCutter DiameterOutput SizeOverall DimensionsWeight
60018–20 rpm2–5 t/h26260 mm30–100 mm2600 × 2000 × 1900 mm2500 kg
100018–20 rpm5–10 t/h30360 mm30–100 mm3000 × 2000 × 1900 mm5000 kg
120018–20 rpm6–15 t/h28372 mm30–100 mm3200 × 2000 × 1900 mm6000 kg
150014–16 rpm8–18 t/h30530 mm30–100 mm4000 × 1700 × 2400 mm12000 kg
190014–16 rpm10–25 t/h40560 mm30–100 mm8000 × 2500 × 2400 mm15000 kg
260016–18 rpm25–60 t/h40720 mm30–100 mm8200 × 4000 × 4300 mm36000 kg

Actual throughput and output depend on material type, bulk density, feed size, cutter configuration, moisture, contamination and operating conditions. Final model selection should be confirmed against representative feed information.

07 / Applications

Where the machine sits in a recycling process

Typical upstream Loading / feed preparation Feeding conveyor
→
Active machine Double-Shaft Shredder
→

Primary shredding

Coarse reduction of bulky or irregular feed before secondary crushing, screening or separation.

Bulky waste reduction

Makes large containers, pipes, pallets, tires and compatible scrap easier to convey and process downstream.

Recycling line pre-processing

Provides a stable primary reduction stage ahead of crushers, screens and compatible separation equipment.

RDF / waste preparation

Reduces suitable bulky waste and RDF-related feed before classification or downstream treatment.

08 / Selection inputs

Information for Equipment Selection

01

Material

  • Material type and composition
  • Maximum feed dimensions
  • Thickness / metal content
  • Moisture and contamination
  • Photos, video or representative sample
02

Production Requirement

  • Required capacity
  • Target output size
  • Operating hours
  • Upstream and downstream process objective
03

Site & Utilities

  • Country
  • Voltage and frequency
  • Installation space
  • Mechanical and control interfaces
  • Environmental or regulatory constraints
09 / Equipment FAQ

Common selection questions

How is the correct double-shaft shredder model selected?

Selection should consider material type and composition, maximum feed dimensions, metal thickness, bulk density, required throughput, target coarse output and downstream process interfaces. A larger model number alone does not guarantee suitability.

Can the cutter configuration be adapted for different materials?

Yes. Cutter material, tooth geometry, disc arrangement and related configuration can be selected around the feedstock. The source material specifically states that different cutter materials can be used for different materials to support stable production.

What types of material can the machine process?

The supplied material list includes hollow containers, appliance housings, pipes, pallets, tires, selected scrap metal, RDF-related waste, garden or biomass waste, rubber offcuts and paper-mill rope. Final suitability must be confirmed against size, composition and contamination.

Can the shredder be integrated with a feeding conveyor?

Yes. The supplied product information states that a feeding conveyor can be configured. Conveyor sizing and control should be matched to the required feed rate, material dimensions and downstream process.

What routine maintenance should be considered?

Routine checks should cover cutter wear, fasteners, bearings, shaft supports, gearbox condition, lubrication, chamber cleanliness and abnormal vibration or noise. Maintenance intervals should follow the final machine configuration and operating duty.

Is the 30–100 mm output size guaranteed for every material?

No. The 30–100 mm figure is an indicative model-range value from the existing product data. Actual output depends on feedstock, cutter geometry, material behavior and operating conditions, so the target size should be confirmed during equipment selection.

Equipment Inquiry

Need to size a shredder for your material?

Share your material type, typical feed dimensions, required capacity, target output size, operating conditions and site electrical information. BREM can review the application and recommend an appropriate machine and cutter configuration.

You can also upload material photos, equipment images, plant layouts or technical documents.