BRD / BRDS Double Shaft Shredder
Reduce bulky, irregular, and mixed feed before conveying, sorting, separation, or further sizing. BoRay matches BRD standard or BRDS heavy-duty double shaft shredders to the largest items, material composition, and operating load.
Twin rotors grip, tear, and shear the feed. Define the primary reduction task first, then compare chamber size, cutters, and drive.
How It Works
The two rotors engage material and reduce it by tearing and shearing. This arrangement is used when strong grabbing action and primary volume reduction are central to the job, especially for bulky or irregular feed.
Blade width, tooth profile, rotor speed, material condition, and discharge arrangement influence the output. Blade thickness alone does not define an exact finished particle size.
If the next stage needs screen-controlled sizing, compare a single shaft machine or a secondary sizing stage. View Single Shaft Shredders →
Machine Selection
BRD addresses compact, moderate-load pre-shredding. BRDS is evaluated for larger feed, tougher loads, and longer working hours. Use the comparison below to narrow the series, then check the existing model parameters.
Standard configuration
Evaluate BRD for compact primary shredding of bulky material under moderate operating loads, including plastic containers, packaging, e-waste, light metal, and selected industrial scrap. Check the largest feed dimensions and the actual material mix before choosing a model.
Heavy-duty configuration
Evaluate BRDS when feed dimensions, impact loads, or operating hours call for a heavier configuration. The listed models use dual-motor power arrangements; drive and gearbox options must be confirmed for the selected material and duty.
| Selection point | BRD standard | BRDS heavy-duty |
|---|---|---|
| Main duty | Compact primary reduction under moderate loads. | Primary reduction for larger feed and more demanding loads. |
| Feed to review | Containers, packaging, light scrap, and selected industrial material. | Bulky waste, tougher mixed streams, and larger incoming items. |
| Drive selection | Match the listed motor power and drive to the feed. | Listed dual-motor power arrangements; gearbox selection follows duty. |
| Before choosing a model | Check feed dimensions, material form, discharge needs, and layout. | Also review impact loads, operating hours, and heavy components. |
Core Structure
Cutter engagement, torque transmission, overload control, and maintenance access work together. Review each against the material and operating duty rather than comparing motor power alone.
Cutter thickness and tooth profile affect how the rotors engage and tear the feed. Cutter material is chosen for the waste type, impact load, and wear conditions; no single cutter specification suits every mixed stream.
High-strength main shafts transfer drive torque to the cutting system. Feed size and uneven loading are part of the structure review, particularly for bulky and mixed materials.
Fixed knives at the chamber sides assist shearing and help reduce wrapping. Their removable arrangement provides access when the cutting area needs servicing.
BRDS configurations can use planetary gearboxes for demanding torque and impact loads. Confirm the gearbox arrangement in the selected configuration; it is not presented as standard on every model.
Automatic load monitoring and reverse logic help respond to overloads during uneven feeding. This supports operation without replacing the need to check unsuitable objects in the incoming feed.
The drive components and their frame support are configured as an assembly around material load, working hours, and installation requirements.
Material Match
Use these examples to describe the job. Final suitability follows the actual feed, hard contaminants, required discharge, and operating load.
| Your feed | Primary task | Details to review |
|---|---|---|
| Tires and reinforced rubber | Whole-tire or bulky rubber primary reduction. | Tire dimensions, steel reinforcement, and any pre-cutting requirement. |
| Bulky waste and furniture | Reduce large, irregular items before sorting or further handling. | Largest items, frames, internal components, and loading method. |
| Plastic containers and packaging | Grip and tear hollow or bulky plastic products. | Dimensions, wall thickness, feed form, and the next sizing stage. |
| Light metal and appliance scrap | Primary reduction of selected hollow, sheet, or mixed scrap. | Thickness, hard solid parts, remaining contents, and material mix. |
| E-waste and electronic assemblies | Reduce bulky housings and mixed devices before recovery or further sizing. | Dismantling, remaining components, and any destruction acceptance criteria. |
| Paper, biomass, and industrial waste | Prepare bulky or irregular material for the next process. | Bundles or loose feed, flexible fractions, contaminants, and required discharge. |
Describe your material and the result you need. Add dimensions or throughput if known; we can clarify the remaining details together.
Technical Parameters
Compare the existing chamber dimensions, blade specifications, power, overall dimensions, and weights below. These parameters help narrow the models; throughput and discharge must be assessed for the specified feed and configuration.
Compact double shaft configuration for lighter-duty shearing and primary pre-shredding applications.
| Specification | BRD-450 | BRD-600 | BRD-800 | BRD-1000 |
|---|---|---|---|---|
| Cutting chamber (mm) | 350 x 450 | 600 x 550 | 800 x 600 | 1000 x 700 |
| Blade diameter (mm) | 234 | 280 | 305 | 330 |
| Blade thickness (mm) | 20 | 20 | 20/40 | 20/40 |
| Power (kW) | 5.5 | 15 | 22 | 30 |
| Overall size (mm) | 1320 x 800 x 1800 | 2240 x 1050 x 2020 | 2500 x 1120 x 2230 | 2510 x 1865 x 2550 |
| Machine weight (kg) | 600 | 1200 | 1800 | 2200 |
Heavy-duty double shaft configuration for larger feed size, stronger torque demand, and continuous waste treatment operation.
| Specification | BRDS-1000 | BRDS-1200 | BRDS-1600 | BRDS-1800 | BRDS-2000 |
|---|---|---|---|---|---|
| Cutting chamber (mm) | 1000 x 700 | 1200 x 800 | 1600 x 1100 | 1800 x 1000 | 2100 x 1300 |
| Blade diameter (mm) | Dia. 330 | Dia. 400 | Dia. 550 | Dia. 550 | Dia. 650 |
| Blade thickness (mm) | 30/40 | 50/60 | 60 | 60 | 60/80 |
| Power (kW) | 30 + 30 | 45 + 45 | 90 + 90 | 75 + 75 | 200 + 200 |
| Overall size (mm) | 3150 x 2150 x 2500 | 4100 x 2300 x 2800 | 5630 x 3160 x 3200 | 6110 x 4950 x 5520 | 6700 x 3700 x 3600 |
| Machine weight (kg) | 4500 | 8000 | 16000 | 22000 | 29000 |
Industrial Double Shaft Shredder Machine Quote
Describe the main material and the purpose of primary shredding. We will help compare BRD and BRDS, then clarify discharge, feeding, and duty requirements. You can start before every parameter is known.
Send photos or short videos through WhatsApp or email.
Project Consultant
I can help compare models, feeding arrangements, and output requirements for your process. Start with a material photo or description; we can work through the remaining specifications together.
FAQ
Compare single shaft and double shaft shredders in our selection guide →
No. Blade width is one influence, alongside tooth profile, rotor speed, material condition, and discharge arrangement. Double shaft primary tearing and shearing do not provide the same screen-controlled sizing as a single shaft arrangement. Define the acceptable discharge for the next process.
Planetary gearboxes are an available configuration option for BRDS. Confirm the gearbox and drive arrangement for the selected model, material, and duty in the project configuration.
A mixed stream can be evaluated, but its main materials, largest pieces, hard contaminants, and variation between batches need to be described. A machine selected for one mix should not be assumed suitable for every other feed.
Very hard solid steel parts, stones, concrete, explosive or pressurized items, and materials with unknown hazardous contents must not be assumed suitable. Identify these items during the feed review before selecting a machine or feeding arrangement.
Further sizing may be needed when the next equipment or product requirement calls for a more defined output than primary shredding provides. Share the receiving process’s feed requirements so the stages and any separation equipment can be reviewed together.
Start with the material type, a photo or description of the largest items, and what happens after shredding. Add dimensions, capacity, and operating hours if known; the remaining configuration details can be clarified during review.
