Halco Rock Tools, UK Manufacturer of DTH Hammers and Bits. Halco pioneered the development and distribution of DTH hammers in the 1950s.
The Mach 44 is a general purpose hammer suitable for all rock conditions at a wide range of air pressures.
 
With a proven track record of performance and reliability, the Mach 44 operates at a high frequency which makes it ideal when using overburden systems for broken unstable ground conditions.
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.
Air Consumption
The Halco shank reduces contact stresses and wear rates.
Size
108 - 150mm
(4 1/4 - 5 7/8")
Shank
Halco 4
Air Pressure
100-350PSI
(7-24 bar)
Tech Specs
Overview
Mach 44
Hammer Type
Part Number
Shank
Top Thread
Hammer Flat Size
Weight
Outside Diameter
Make Up Length
Recommended Maximum Thrust
600070
Halco 4
2 3/8" API Reg Pin
65mm (2.560") 
35.3Kg
95mm (3 3/4")
1000mm (39 3/8")
500Kg (1100 lbs)
Drill Bit Overview
Halco 4
Oversize
 
 
 
 
 
Y
Y
Y
Y
Diameter
Face
Buttons
Part
Number
650580
650931
650932
650936
650969
653249
650933
650466
650925
650444
650445
Weight
(Kg)
9.5
9.6
9.7
9.7
9.6
9.6
10
11
10.7
12.5
13.5
 
Type
Ballistic
Dome
Dome
Ballistic
Semi Ballistic
Dome/Ballistic
Dome
Dome
Semi Ballistic
Dome
Dome
Qty & Dia
14 x 13mm
15 x 13mm
8 x 14mm / 8 x 13mm
16 x 13mm
16 x 13mm
8 x 13mm / 8 x 13mm
8 x 14mm / 8 x 13mm
16 x 13mm
16 x 13mm
17 x 13mm
17 x 13mm
mm
108
110
115
115
115
115
120
127
127
140
150
 
Inch
4 1/4
4 5/16
4 1/2
4 1/2
4 1/2
4 1/2
4 3/4
5
5
5 1/2
5 7/8
Design
Concave
Convex
Convex
Convex
Convex
Concave
Convex
Convex
Convex
Convex
Convex
Additional bit configurations are available on request.