The Gopher Drilling Machine,drilling machines,drills,weldgrip,drilling,drill

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The Weldgrip "Gopher" Drilling Machine

The Gopher drilling machine is marketed in the UK and Europe by Weldgrip Strata and Ground Control Services.

It is a manually operated rotary, low-pressure machine with a three-stage leg operation. A range of machines cover operational heights of between 1.1m and 4.1m. The Gopher will operate with pressures between 60 and 100 psi and can be used with the appropriate drill steels for dry or wet drilling. Typical applications include mining, quarrying, tunneling and civil engineering.

Double dump valve for improved operational speed
External leg housing made from wound carbon fibre
improves durability and reduces machine weight
Improved water valve increases operational water pressure
Larger exhaust silencer reduces noise value to 84dBA
Lightweight but durable glass filled plastic head piece and pivot block
Gearbox options: Hi-torque/Lo-speed or Lo-torque/Hi-speed
Easy to maintain and low service costs

Gopher Drilling Machine Specification

High Speed Gearbox

Operating Pressure	bar	6.20	5.51	4.13
- -	psi	90	80	60
Chuck Free Speed	rpm	875	850	800
Stall Torque	Nm	190	170	136
- -	lb/ft	140	125	100

High Torque Gearbox

Operating Pressure	bar	6.20	5.51	4.13
- -	psi	90	80	60
Chuck Free Speed	rpm	650	600	550
Stall Torque	Nm	223	203	163
- -	lb/ft	165	150	120

Leg Thrusts

Operating Pressure	bar	6.20	5.51	4.13
- -	psi	90	80	60
1^st Stage	kN	10.36	9.02	6.89
- -	lbs	2320	2030	1550
2^nd Stage	kN	7.73	6.89	5.34
- -	lbs	1740	1550	1200
3^rd Stage	kN	5.70	5.11	3.74
- -	lbs	1280	1150	840

Dimensions — Heights

Machine Type		Closed	Open
MGS/250/3/LP	mm	1080	2360
MGS/310/3/LP	mm	1280	3050
MGS/350/3/LP	mm	1440	3650
MGS/410/3/LP	mm	1530	4100

Safety Information

Vibration Factor	m/s²	0.678
Noise Reading	dBA	84

Test data is provided by Lloyds Beal and International Mining Consultants Ltd,
Bretby Test Centre, United Kingdom

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