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The Weldgrip "Gopher" Drilling Machine

GOPHER

Gopher

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.


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3.5 meg

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
1st Stage kN 10.36 9.02 6.89
- - lbs 2320 2030 1550
2nd Stage kN 7.73 6.89 5.34
- - lbs 1740 1550 1200
3rd 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

 

© 2006 Weldgrip Geotechnical , All Rights Reserved