Osborn Laboratory Crushers

Laboratory Jaw Crushers

Osborn's Laboratory Single Toggle Jaw crushers are designed to reduce most materials to a fine granular consistency for chemical analysis. The machines are highly efficient for rushing batch quantities.

Osborn's Laboratory jaw crushers are available in 6 sizes. the Three crusher models with a feed opening of 1010cm or more, are roller Bearing design and can be run for extended periods. The three smaller units are designed for laboratory use only and should not be used over prolonged periods.

Operating Features

  • Reversible manganese steel fixed and swing jaws
  • Fabricated or cast steel structure
  • Simple closed side setting adjustment
  • Jaws easily removed for cleaning

Laboratory Cone Crushers

Osborn Laboratory Cone Crushers reduce 13mm feed to as fine as 1,85mm in a single pass. The product delivered is ideal feed to:

  • Bell or rod mills
  • Laboratory pulverisers
  • Gravity concentration equipment such as tables
  • Sink/float or spiral concentrators
  • Sizing analysis
  • Sampling

Operating features

  • Choke or free fed
  • May be stopped or started under full load.

The Osborn laboratory cone crusher is available in one size only, and compliments Osborn's extended product offering.


General features

  • The inner cylinder and lower main frame are of fabricated steel with coincidental axes held in a fixed relationship.
  • Crusher base, fabricated with the motor base, is composed of two parallel channels secured by a V-shaped chute.
  • Upper main frame consists of a threaded cap and houses the precision manganese steel concave. A threaded connection provides an accurate means of adjusting the crusher set.
  • Head is the shape of a cone segment with a pitch of 45°. A pan-shaped manganese steel mantle is bolted onto the head core.
  • Spindle consists of a rugged steel shaft that rotates on taper rolling bearings mounted on the inner cylinder and the lower main frame.
  • Spindle drive is composed of the spindle pulley, motor pulley and V-belts.
  • Wear parts are of manganese steel designed for metal to metal fit against the head surface and the upper main frame surface.
  • Clearing between operations is convenient and complete, salting of samples is eliminated.
  • Quiet operation due to absence of gears.
  • No cooling accessories required.