RETSCH / LARGE FEED. FRONT ACCESS.

BB 400.
Larger feed. A practical next step.

Process feed below 220 × 90 mm with a front-access floor model. The BB 400 combines throughput up to 400 kg/h with final fineness below 2 mm, depending on the sample and configuration.

Request a quote Technical data

Explore the equipment and access details.

FEED SIZE*< 220 × 90 mm

FINAL FINENESS*< 2 mm

THROUGHPUT*400 kg/h

THE MODEL IN FOCUS

Large feed with a fine result.

Start with a larger feed opening

The 220 × 90 mm jaw opening accepts larger pieces while a stepless 0–30 mm gap setting controls the crushing route.

Keep cleaning accessible

A front door, removable hopper and jaw-wear indication support routine access and maintenance planning.

Configure collection and discharge

Use the standard 10 L collector for batch work, or discuss a discharge funnel, larger collection vessel and process-line version for the workflow.

*Feed size, final fineness and throughput depend on the material, jaw selection, gap setting and configuration. Published capacities are not simultaneous performance guarantees.

PUBLISHED MODEL DATA

The technical
picture.

BB 400 uses pressure for coarse and pre-crushing of medium-hard, hard, brittle and tough materials.

Feed size, final fineness and throughput depend on the material, jaw selection, gap setting and configuration. Published capacities are not simultaneous performance guarantees. Confirm current electrical and configuration requirements before ordering.

Original Glen Mills product page

Feed size*: < 220 x 90 mm
Final fineness*: < 2 mm
Throughput*: 400 kg/h
Jaw width: 220 x 90 mm
Gap width setting: 0 – 30 mm
Collector capacity: 10 l
Drive power: 5.5 kW
Dimensions, W × H × D: 695 x 1399 x 719 mm
Net weight: ~ 400 kg

More specifications & configuration details

Applications: coarse and pre-crushing
Field of application: chemistry / plastics, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics
Feed material: medium-hard, hard, brittle, tough
Size reduction principle: pressure
Material of grinding tools: manganese steel, tungsten carbide, steel for heavy-metal free grinding, NiHard4
Gap width display: Scale
Zero point adjustment: yes
Wearing rate display: yes, up to minus 10 mm
Removable hopper: yes
Dust extraction unit: yes
Central lubrication: no
Process line version: Optional
Base frame: vario frame (adjustable for continous crushing)
Drive: 3-phase motor
Electrical supply data: different voltages
Power connection: 3-phase
Protection code: IP 55
Standards: CE

JAW MATERIALS & CONFIGURATION

The details shape
the result.

Match wear materials and the complete crushing route to the sample and the analysis.

Breaking jaws & wear plates

Published tool-material options for BB 400: manganese steel, tungsten carbide, steel for heavy-metal free grinding, NiHard4. Confirm the exact combination and wear contribution for your material; a named heavy-metal-free grade does not eliminate every possible source of sample contamination.

Batch collection & process-line versions

Use the 10 L collector for batch preparation or discuss an optional process-line version for continuous operation. Feeding, collection, protection and electrical requirements depend on the installation.

Hoppers, collection & continuous discharge

Discuss the hopper arrangement, collection funnel with outlet and larger collection vessels. The standard 10 L collector supports batch preparation. Review dust handling, access and installation around a continuous workflow.

Jaw and crusher components for BB 400 — Illustrative crusher components. Confirm material and configuration availability.

Cyclone collection system illustrated on a BB 50 jaw crusher — Cyclone-system example shown on a BB 50. Connections and equipment vary by model.

OPTIONAL CYCLONE COLLECTION

Recover the sample.
Manage the dust.

Discuss cyclone-assisted collection to help reduce sample loss and dust exposure during crushing. Retrofit options are listed for BB 50, BB 250, BB 400 and BB 500; confirm the setup for BB 400.

Discuss cyclone compatibility

PRESSURE. MOVEMENT. CONTROL.

Start with the feed.
Control the gap.

Material enters through the hopper into a wedge-shaped chamber. One jaw is fixed while the other moves, applying pressure to reduce the sample. Particles pass to the collector when small enough to move through the discharge gap.

Watch the jaw-crushing principle

RETSCH animation illustrates the principle using the BB 100.

Match the feed.

Check maximum dimensions, hardness, brittleness and the material’s breaking behavior.

Set the reduction.

Choose a model, jaw material and gap suited to the required result.

Validate the output.

Assess the size distribution, recovery, wear and throughput with representative material.

TYPICAL MATERIALS

Begin with the sample.

Discuss material properties, purity requirements and downstream analysis alongside the model specifications.

Ores & mineralsConstruction materialsGranite & quartzGlass & oxide ceramicsSlag & cement clinkerCoal & silicon

MODEL APPLICATION REVIEW

Put BB 400
to the material test.

Share the feed material, starting dimensions and target particle size. We’ll help review the jaw material, collection method, electrical configuration and practical next step.