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ECHIDNA

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Rock Grinders

ROCK GRINDERS

twin head grinder model

Features

for excavators from 20 to 70 tonnes
up to 810kW of continuous cutting power!
full length drum support
sealed drums to keep wheels balanced
no gear box
for roadworks, excavations, demolition
custom modifications and accessories for special purposes available

Accessories

custom drums for varied width
replacement picks
hydraulic rotator

Specification

Model>>	units	G6	G7	G8
Excavator Class	tonnes	20-30	30-45	40-70
Weight (machine only)	kg	1400	1750	2150m
Cutting Head width	mm	650-1100	750-1250	900-1500
Cutting head diameter	mm	840	960	1070
No. picks		to spec	to spec	to spec
Power - rated	kW	487	420	810
Torque at 350 bar	Nm	24 500	25 000	49 000
Rotation speed max.	rpm	190	190	170
Cutting force at 350 bar	kN	78 000	112 000	156 000
Oil Pressure max	bar	420	420	420
Oil flow max at 50 bar	l/min	1050	1695	1930
Oil flow max at 250 bar	l/min	1050	1695	1930
Drum support		full length	full length	full length
Seal position		root of drum	root of drum	root of drum
Seal type		labyrinth	labyrinth	labyrinth
Power transmission		direct coupled	direct coupled	direct coupled
Origin		Australia/CR	Australia/CR	Australia/CR