Jaw crushers for aggregates and hard rock processing

Jaw crushers are chiefly used as the initial crusher when producing aggregates, for various tasks in mining operations, as well as in a variety of recycling functions. Their main purpose is to reduce rocks to smaller sizes for the next crushing stage.

How does a jaw crusher work?

Raw material is loaded into the crusher’s hopper and is then moved along into the crusher by the grizzly feeder, which has a vibrating platform, which uses a hydraulic gear motor to drive this operation. From the grizzly feeder the material is driven through a V-belt drive into the crusher.

The crushed material is then deposited onto the conveyor, which can be raised and lowered to facilitate distribution.

What safety mechanisms are in place?

The crusher protects the jaws from damage via a locking cylinder mechanism, which completely opens the discharge port allowing easy access to any clogged or jammed material.  The automatic discharge setting allows for easy clearance adjustment and discharges port aperture.

Where can you get a jaw crusher in Zimbabwe?

MMI Zimbabwe (Pty) Ltd, as Komatsu South Africa’s Dealer in Zimbabwe, has access to two jaw crushers to market, sell and support for their customers.  These jaw crushers, the BR380JG-1EO and the BR580JG-1, incorporate the same innovative hydraulic and engine technology as Komatsu’s market-leading hydraulic excavators and wheel loaders.  The downtime and operating costs are greatly reduced thanks to the unique hydraulic crusher protection system.

Komatsu BR380JG-1EO crusher

Komatsu BR380JG-1EO Jaw Crusher This is the smaller of the two Komatsu crushers with a throughput range of between 50 and 240 tonnes per hour, depending on material and sizing.  This is a multi-function, high production machine that allows owners to perform numerous operations with one unit thanks to the crusher hydraulics.

Utilising the same tried and tested undercarriage and track drive as Komatsu’s hydraulic excavators makes the crusher reliable and easy to handle.  The crusher drive, grizzly feeder motor and conveyor motors are also hydraulically driven.

Komatsu BR580JG-1 mobile crusher

Komatsu BR580JG-1 mobile crusherThe 2625mm x 4400mm hopper can be loaded from three sides making it easy to load material for crushing.  This jaw crusher has a crushing capacity of 140 to 160 tons per hour – while being exceedingly powerful it is also simple to use.  The discharge clearance to remove clogged foreign material on the bear lock cylinder mechanism can be changed with a simple one-touch adjustment.

Komatsu is a global leader in the supply of Japanese-engineered mining, construction, earthmoving and utility equipment in Southern Africa. The MoJo Motor Industries (MMI) Team comes with over fifty years of combined experience in automotive, construction and mining equipment sales and support. MMI is the official Komatsu dealer for Zimbabwe. Please direct all your pre-sales or equipment enquiries on jaw crushers to our friendly staff.