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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ROTARY HEAD
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 *
Motor	63 cc
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 *
Motor	75 cc
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 *
Motor	150 cc
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)

SAFETY FEATURES
Features	2 emergency stop buttons
	Hydraulic system protection via relief valves
	Safety cage

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

Ghana

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.

Bolivia

Seismic Drilling - Ecuador

Blasthole Drilling - Mexico