Region +44 (0) 1903 731312

Dando Terrier

Occupying a small footprint, the compact and extremely versatile Dando Terrier drilling rig is capable of a range of site investigation techniques in areas of restricted space and difficult access, including disturbed and undisturbed sampling, SPT and dynamic probing.

Mounted on a small crawler unit, the rig is easily transportable and simple to manoeuvre through tight spaces, causing very little disturbance to its surroundings.

Features include:

  • Disturbed and undisturbed sampling, SPT and dynamic probing.
  • Compact crawler mounted design.
  • 2-piece drop hammer incorporated in mast assembly for recovery of casing and sampling tools.
  • Mast assembly can be detached for remote operation.
  • Hydraulic tilting undercarriage allows operation on inclined slopes of up to 30 degrees from horizontal.
  • Deck area with storage capacity for all required drilling tools.
  • Rotary concrete coring head available as an option. Useful when concrete and tarmac overlie the area to be sampled.
  •  3 cylinder 19 HP diesel engine providing increased power and smoother operation. Easy to access for simple maintenance.
  • Available as a rotary version or fitted with interchangeable masts for both percussive and rotary drilling.

*Please request a copy of our terms and conditions if required.


Download Brochure
Chassis Purpose built crawler chassis with rubber tracks
Incorporates controls, engine mounting and tool storage
Steel deck fitted with tilt mechanism
Engine 19 HP water cooled diesel engine. Other options available.
Mast Assembly Steel mast hydraulically raised and lowered
1.3m stroke
Entire mast assembly can be detached from the main superstructure for operation in areas of restricted space.
1m measurement scale for easy monitoring of depth progress
Head Travel Speed Up: 12 m/min (39 ft/min)
Head Travel Speed Down: 17 m/min (55 ft/min)
Pullback: 5,000 kgf (11023 lbf)
Drive Hammer Two-piece drive hammer running on 2 guide bars
Fully guarded weight
Hammer Speed: 0-50 blows pm
Hammer Drop: 500-750 mm
Hammer Weight: 50kg or 63.5 kg
Control Panel Drilling controls located at the side of the rig. Includes emergency stop
Tracking controls located at rear of the rig, with folding foot plate. Option: Radio remote control tracking
Stabilisers Removable stabiliser legs
Hydraulic PTO Flow for PTO: 48 lpm
Max. Working Pressure: 152 bar
Optional Equipment Rotary concete coring head
Remote drilling kit- the whole control panel and mast can be removed and operated at up to 30m away from the main base unit
Casing extractor
  • Rotary concrete coring head
  • With the remote drilling kit the whole control panel and mast can be removed and operated up to 30m away from the main base unit.
  • Casing extractor

Site Investigation in China

Duplex sampling with the Dando Terrier in Jiangsu Province.

Dando Terrier with Interchangeable Percussion and Rotary Masts

The Dando Terrier is now fitted with a 3 cylinder 19 HP diesel engine providing increased power and smoother operation. It is also easy to access for simple maintenance. This machine was supplied with interchangeable masts to a geotechnical contractor in China.

Dando Terrier - Contaminated Land Assessment

Duplex drilling and windowless sampling with a UK customer’s Dando Terrier for contaminated land assessment.

Dando Terrier- Site Investigation - UK

A UK environmental services provider has been using the small, versatile Dando Terrier rig for duplex sampling with 116mm sampler and 128mm casing, as well as SPT and windowless sampling

Tasmania - Silica Deposit Sampling

Northern Ireland - Duplex Drilling & Dynamic Probing

Duplex drilling, CPT and dynamic probing with the Dando Terrier during a customer visit in Northern Ireland.

Indonesia - Gold Exploration

Indonesian gold specialists PT Green Gold Engineering are using the percussive Dando Terrier for alluvial gold exploration on a new concession of mineral sands in Kalimantan. Requiring samples in the 10-15m range, Green Gold‘s drilling division, Indrill, required a small, lightweight rig with low ground pressure to navigate the fine powder-white sand.

Indonesia - Terrier Open Day

A Dando Terrier demonstration day held in Indonesia for a selection of companies within the country’s geotechnical sector.

USA - Soil Investigation

Purchased back in 2012, a US customer's Terrier rig has been carrying out lake-bottom soil investigation ahead of piling to support a new boat slip.

Turkey - Ballast Sampling

A fleet of seven Dando Terrier percussive rigs sold to a customer in Turkey for ballast sampling on the country's railways.

United Kingdom - Site Investigation

United Kingdom - Site Investigation




United Kingdom

A UK golf club’s tractor mounted Dando Terrier drilling shallow dewatering holes on its greens, predominantly made of clay, for draining surface water. Having previously used a drilling contractor to conduct this work, the customer’s new Terrier proves a more cost effective and flexible solution, with the rig readily available when needed


A customer's Dando Terrier working on various geotechnical projects including site investigation in the basement of Stockholm’s ancient theatre, the Vasateatern. With limited space and restricted access being an issue, the Dando Terrier was seen by the customer as the perfect solution with its compact crawler mounted design and detachable mast assembly for remote operation.

Oregon, USA



The Dando Terrier with interchangeable percussive and rotary mast for carrying out a variety of sampling techniques.


United Kingdom

Join our newsletter