Armstrong Industries GRB777 Impact Rock Crusher

Regular price $5,900.00

Tax included.

The GRB 777 has taken a few years to perfect, with endless hours in the workshop. Having 40 years mining experience, the Armstrong family know what it takes to build a crusher super tough and reliable.

​The GRB 777 packs a punch for its size. With dry material it can deliver up to 300kg per Hour of fine crushed product with our largest bottom screen. The replaceable Carbon Steel impact bars have a rating of 60 HRC. Giving you long lasting wearing capabilities.

There are 4 interchangeable bottom screens available.  So you can alter the size of the output material.

The screens are held in place by 4 quick release heavy duty latches so if you run the engine out of fuel or you want to clean the cylinder and screen, access is quick and easy.

Also the four bolt flange bearings are positioned to be greased easily. The two drive belts can be adjusting by the engine tightening bolt.  

Everything on this machine has been made with the operator in mind. The goose neck feed hopper and gravity flap stops the possibility of rocks coming back out. The electric start makes life easy.   

Maneuverability is a plus with this machine, it's compact and has flat free tires with a sturdy lift handle.


LENGTH- 1200mm
WIDTH- 540mm
HEIGHT- 1020mm
WEIGHT- 110kg
ENGINE- Electric Start 9Hp Petrol or 5.5kw 3phase electric

*This model comes standard with a 1.2mm bottom screen. Additional screens available for order.