Midvale Unit 3, 144 Great Eastern Highway, MidvaleT (08) 9250 8998
Kalgoorlie 260 Hannan St. Kalgoorlie T (08) 9022 3694

GRB 777XL Rock Crusher


The GOLD ROCK BREAKER 777XL is a patented design in Australia and is currently pending in the US. It has taken a few years to perfect, with endless hours in the workshop. Having 40 years mining experience between my father and I, we know what it takes to build a crusher super tough and reliable.

The GRB 777XL is built for the serious prospector and small scale miner. It is capable of crushing approximately 500kg per hour.

The Impactor bars are made from a special High Grade Carbon Steel with a rating of 67 HRC. Giving you the long life and great wearing capabilities. Replacement impactors bars are readily available. They just simply slide into the tapered locking position and then are held by 4 High Tensile Bolts on each bar.

There are 4 Interchangeable Bottom Screen available. So you can alter the output size of your material. Also the slots on the Bottom Screen are slightly tapered from inside to outside. This helps to reduce the chance of material becoming clogged in the screen slots.

The screen are held in place with four heavy duty quick release clips so if you run the engine out of fuel the cylinder can be cleared out easily. Also makes cleaning the screen slots quick and simple.

There is many safety features to protect the operator including the design of the feed hopper and the gravity flap to eliminate any rocks coming out the top.

The frame has four flat free tyres and a neat turntable steering setup.


LENGTH- 1100mm

WIDTH- 600mm

HEIGHT- 1250mm

WEIGHT- 140kg

ENGINE- Petrol Electric Start 15HP


CAPACITY- 500kg per hour Approx.

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