Jaw Crushers - primary size reduction

Retsch Jaw Crushers are used for the rapid, powerful crushing and pre-crushing of mediumhard, hard, brittle and tough materials. The variety of materials offered, their efficiency and safety make them ideal for sample preparation in laboratories and industrial plants.

  • Jaw Crusher BB 50

    Jaw Crusher  BB 50
    • Feed material: medium-hard, hard, brittle, tough
    • Material feed size*: < 40 mm
    • Final fineness*: < 0.5 mm
  • Jaw Crusher BB 100

    Jaw Crusher  BB 100
    • Feed material: medium-hard, hard, brittle, tough
    • Material feed size*: < 50 mm
    • Final fineness*: < 4 mm
  • Jaw Crusher BB 200

    Jaw Crusher  BB 200
    • Feed material: medium-hard, hard, brittle, tough
    • Material feed size*: < 90 mm
    • Final fineness*: < 2 mm
  • Jaw Crusher BB 300

    Jaw Crusher  BB 300
    • Feed material: medium-hard, hard, brittle, tough
    • Material feed size*: < 130 mm
    • Final fineness*: < 5 mm
  • Jaw Crusher BB 250 XL

    Jaw Crusher BB 250 XL
    • Feed material: medium-hard, hard, brittle, tough
    • Material feed size*: < 120 x 90 mm
    • Final fineness*: < 2 mm
  • Jaw Crusher BB 400 XL

    Jaw Crusher BB 400 XL
    • Feed material: medium-hard, hard, brittle, tough
    • Material feed size*: < 220 x 90 mm
    • Final fineness*: < 2 mm
  • Jaw Crusher BB 500 XL

    Jaw Crusher BB 500 XL
    • Feed material: medium-hard, hard, brittle, tough
    • Material feed size*: < 110 mm
    • Final fineness*: 90% < 0.5 mm
  • Jaw Crusher BB 600 XL

    Jaw Crusher BB 600 XL
    • Feed material: medium-hard, hard, brittle, tough
    • Material feed size*: < 350 x 170 mm
    • Final fineness*: < 6 mm


Applications & Details

Jaw crushers are always at the very front of the sample preparation chain, pre-crushing all hard and brittle materials. They are primarily used in laboratories and pilot plants under rough conditions but are also suitable for on-line quality control of raw materials. The jaw crushers are available in 8 different sizes: BB 50, BB 100, BB 200, BB 300 and the XL models BB 250 XL, BB 400 XL, BB 500 XL and BB 600 XL. Throughput and final fineness depend on the crusher type, selected gap width and breaking properties of the sample material.
  Feed sizes range from 40 mm to 350 mm, depending on the model.

The main fields of application of jaw crushers are construction materials, mineralogy and metallurgy, ceramics and glass, materials research and environmental analysis.

RETSCH Jaw Crushers are characterized by many unique details allowing for convenient and safe sample processing.


Benefits at a glance

(depending on model)
  • High throughput, high degree of size reduction
  • High final fineness (down to d90 <0.5 mm)
  • Zero point adjustment for wear compensation
  • Breaking jaws made of different materials
  • No-rebound feed hopper
  • Easy-to-clean crushing chamber
  • Belleville spring washer provides overload protection


Jaw Crusher technology

RETSCH Jaw Crushers are robust and powerful forced-feed crushers. The feed material passes through the no-rebound hopper and enters the crushing chamber. Size reduction takes place in the wedgeshaped area between the fixed crushing arm and one moved by an eccentric drive shaft. The elliptical motion crushes the sample which then falls under gravity.

As soon as the sample is smaller than the discharge gap width, it falls into a removable collector. The continuous gap width setting with scale resp. digital display ensure optimal size reduction in accordance with the set gap width value. Integral Belleville spring washer packages and a thermal overload protection switch protect the jaw crushers against overloading.