Dando Terrier Rotary Rig
Perfect for work in confined spaces of difficult access, this small, incredibly versatile rotary drilling rig can be used for continuous flight & hollow stem augering, coring as well as drilling with tricones, drag bits and DTH hammers.
The crawler mounted rig is easily transportable and simple to manoeuvre through tight passages, causing very little disturbance to its surroundings- it can even fit through a standard doorway.
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|Description||Driven by a hydraulic motor fitted with a 2 speed gearbox with manual gear change. 3/4” integral side inlet air/water swivel with BW rod connection.|
|Motor||63, 75 or 160 cc. Other options available|
|Guide Ring||200 mm effective ID. Other options available|
|Gearbox Ratio||7:1 - 1:1|
|ROTARY HEAD MOTOR OPTION 1 *|
|High Range||Max Torque: 140 nm/ 103 ft-lb; Max Spindle Speed: 600 rpm|
|Low Range||Max Torque: 980 nm/ 723 ft-lb; Max Spindle Speed: 85 rpm|
|ROTARY HEAD MOTOR OPTION 2 *|
|High Range||Max Torque: 180 nm/ 133 ft-lb; Max Spindle Speed: 470 rpm|
|Low Range||Max Torque: 1260 nm/ 929 ft-lb; Max Spindle Speed: 70 rpm|
|ROTARY HEAD MOTOR OPTION 3 *|
|High Range||Max Torque: 320 nm/ 236 ft-lb; Max Spindle Speed: 250 rpm|
|Low Range||Max Torque: 2240 nm/ 1652 ft-lb; Max Spindle Speed: 35 rpm|
|FEED AND HOIST SYSTEM|
|Description||Provided by a single double-acting ram transmitting adjustable hydraulic load to the rotary head.|
|Head Travel Speed Up||11.5 m/min (37.7 ft/min)|
|Head Travel Speed Down||16 m/min (52.5 ft/min)|
|Pullback||5000 kgf (11023 lbf)|
|Pulldown||500 kgf (1102 lbf)|
|Working Stroke||2.2 m to accommodate 1.5 m effective length drill rods|
|Drilling Inclination||45° to 90° (Optional)|
|Features||2 emergency stop buttons|
|Hydraulic system protection via relief valves|
- Chalwyn Valve and Spark Arrestor
- Wireless Remote for Tracking
- Casing Extractor
- Angle Drilling to 45 Degrees
Terrier with Interchangeable Percussive and Rotary Masts, Ghana
Training provided for a mining company’s newly acquired Dando Terrier. Supplied with interchangeable percussive and rotary masts and capable of angle drilling, the small, versatile machine will be used for calculating gold reserves and grade control. It will be carrying out a variety of drilling methods including duplex drilling, coring and tricone bit drilling.
DTH Drilling, South Korea
A customer's Dando Terrier drilling 2m deep holes for a highway project in South Korea.
Continuous Flight Augering - Norway
Continuous flight augering with a Norwegian customer’s rotary Dando Terrier rig.
Mini Piling - Bolivia
8” diameter auger drilling and SPT for micro piling at an electrical substation in Bolivia.
Terrier MK2 Rotary Drilling Rig - Colombia
Terrier MK2 Rotary Drilling Rig - Australia
Dam Drilling - Peru
Operating on a dam at 2100m altitude, a Peruvian contractor’s Dando Terrier, fitted with 35hp engine, has been drilling to 31.5m through gravel and sand using a 3” hammer and compressor.