Halco Rock Tools, UK Manufacturer of DTH Hammers and Bits. Halco pioneered the development and distribution of DTH hammers in the 1950s.
The Dominator 20 is designed for small diameter drilling operations. Its superior performance is one of the fastest small hammers on the market.
 
The valveless design of the Dominator 20 provides high performance at both low and high pressures.  The strong robust design withstands heavy duty applications and includes a N.R.V (Non Return Valve) which is fitted within the hammer to prevent flooding where ground water is present.
 
The unique drill bit design for the Dominator 20 does not use foot valves which reduces the possibility of hammer failure.
Top adaptor with internal N.R.V (Non Return Valve) replaceable air distributor.
Revised chamber volumes and cycle timing to optimize performance.
Simplified piston geometry for improved balance and location within cylinder.
Heavy duty cylinder for extended hammer life.
Air Consumption
Size
70-76mm
(2 3/4 - 3")
Shank
Halco 2
Air Pressure
100-250 PSI
(7-17 bar)
Tech Specs
Overview
Hammer Type
Part Number
Shank
Top Thread
Hammer Flat Size
Weight
Outside Diameter
Make Up Length
Recommended Maximum Thrust
Dominator 20
600423
Halco 2
50mm DIN 405 6 TPI BOX
48mm (1.890")
12.4Kg
62mm (2.44")
817mm (32.16")
150Kg (330 lbs)
Drill Bit Overview
Halco 2
Oversize
 
 
Weight
(Kg)
2.4
2.5
 
Diameter
Face
Buttons
Part
Number
650952
650953
 
mm
70
76
 
Design
Flat
Flat
Type
Dome
Dome
Qty & Dia
4 x 9mm / 6 x 11mm
5 x 9mm / 6 x 11mm
 
Inch
2 3/4
3
Additional bit configurations are available on request.