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  12" Mach 142 cutaway

12" - Mach 142

Available Shank: IR DHD 112S

The Mach 142 hammer accepts IR DHD112S shank bits and is equipped with an oversized chuck to accommodate this shank. This oversized chuck protects the cylinder and prolongs its life. This hammer has a pin drive arrangement to prevent metal to metal contact, thereby minimizing spline wear and damage, which can result in drill bit shank failure. Mach 142 has a one piece top-adaptor with N.R.V. (Non-Return-Valve) fitted for easy inspection and service, with integral finger to reduce maintenance and eliminate shimming, which increases service intervals.

Suitable for operation at air pressures of 100 - 350 psi.
Drilling diameters of 17 1/4 - 26".

Click to enlarge
Mach 142 Air Consumption table
Figures are based on theoretical data.
 
One piece top-adaptor reduces internal parts. No make up required. External N.R.V. for easy maintenance.
 
Revised chamber volumes and cycle timing to optimize performance.
 
 
Simplified piston geometry for improved balance and location within the cylinder.
 
 
 
 
 
 
 
 
 
 
 
 
 

Mach 142 part breakdown
Hammer Overview
Hammer Type
Mach 142
Shank
Ingersoll Rand DHD 112S
Top Thread
6 5/8 API Reg Pin
Flat Hammer Size
N/A
Weight
1516.78 lbs.
Outside Diameter
10.748"
Make Up Length
71.614"
Recommended Minimum Thrust
3520 lbs.
Recommended Maximum Thrust
7700 lbs.
Parts List
Hammer Type
Mach 142
Shank
DHD 112S
Item
Description
1
Lifting Cap
2
Circlip
3
O-Ring
4
N.R.V. Seat
5

N.R.V.

6
N.R.V. Spring
7
Top-Adaptor
8
O-Ring
9
O-Ring
10
Top-Adaptor Spacer
11
Cylinder
12
Piston
13
Snap Ring
14
Bearing Bush
15
O-Ring
16
Containment Band
17
Bit Retaining Ring
18
Chuck Spacer
19
Drive Pins
20
Chuck
21
End Cap
Service Kit, Repair Kit, Foot Valve, F/V Tool (Body), and F/V Tool (Pusher) available
info

Drill Bits
Mach 142 / DHD 112S Shank
Diameter
Face Design
Button Type
Button Qty./Dia.
Weight
17 1/4" / 438 mm
Concave
Domed
82 x 20 mm / 18 x 16 mm Wear
780.44 lbs.*
20" / 508 mm
Concave
Domed
91 x 20 mm / 36 x 16 mm Wear
1036.17*
24" / 610 mm
Concave
Domed
123 x 20 mm / 66 x 16 mm Wear
1128.77*
26" / 660 mm
Convex
Domed
171 x 20 mm / 39 x 16 mm Wear
1322.77*
*Oversize