8″ Laboratory Roll Crusher

A laboratory roll crusher designed for use in laboratory and pilot plant applications.
Typically used after primary size reduction of feed material.
Built for controlled and uniform crushing with minimal dust generation.
Produces material with a consistent size range and minimal fines.
Features two equal-diameter rolls rotating in opposite directions to ensure efficient crushing.

• Crushing of ores.
• Mineral processing in laboratories.
• Rock preparation before metallurgical testing.
• Pre-processing for further milling or grinding.
• Pilot plant testing and sample preparation.

Roll Size (Dia × Width) :

• 200 × 150 mm

Standard Roll Face :

• Smooth

Max Feed Size :

• 30 mm

End-fineness :

• < 1 mm

Optimum Reduction Ratio :

• 4 : 1

Roller Speed :

• 380 rpm

Power :

• 1.1 kW (3 × 400V / 50Hz)

Approximate Mass :

• 400 kg

Crushing Mechanism :

• Two contra-rotating rolls of equal diameter

Drive System :

• Individually powered rolls

Product Size Control :

• Adjustable gap between the two rolls

Protection System :

• One roll is spring-mounted to protect against uncrushable material

Operation Type :

• Suitable for primary and mid-range crushing

Material Output :

• Tight size distribution with reduced fines

• Low dust generation during operation.
• Uniform product size with minimal fine particles.
• Adjustable gap for precise control over output size.
• Spring-mounted roll provides safety against hard or uncrushable objects.
• Efficient crushing through counter-rotating roll design.
• Suitable for a wide range of materials including ores and rocks.