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  8" Dominator 880 DW cutaway

8" - Dominator 880 DW

Available Shanks: IR DHD 380

The Dominator 880 Deep-Well hammer has been specifically designed for drilling deep holes under a head of water. The one piece top-adaptor with N.R.V. Non-Return-Valve) makes it easy to maintain and service the hammer. The wide body diameter of the
Dominator 880 DW allows for an increased piston weight and therefore an improved performance. A variable choke for increased air volume can be fitted to the Dominator 880 DW to suit compressor
volume outputs.

Suitable for operation at air pressures of 100 - 435 psi.
Drilling diameters of 7 7/8 - 12 1/4".

Click to enlarge
Dominator 880 DW 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.
 
 
 
 
 
 
Simplified piston geometry for improved balance and location within the cylinder.
 
 
Revised chamber volumes
and cycle timing to optimize performance.
 
IR DHD 380 shank reduces contact stress and wear rates.
 
 
 

Dominator 880 DW part breakdown
Hammer Overview
Hammer Type
Dominator 880DW
Shank
Ingersoll Rand DHD 380
Top Thread
4 1/2" API Reg Pin
Flat Hammer Size
6.142"
Weight
390.22 lbs.
Outside Diameter
7.165"
Make Up Length
49.724"
Recommended Minimum Thrust
1760 lbs.
Recommended Maximum Thrust
4400 lbs.
Parts List
Hammer Type
Dominator 880DW
Shank
DHD 380
Item
Description
1
Thread Protector
2
Snap Ring
3
N.R.V. Seat
4
O-Ring
5
N.R.V.
6
N.R.V. Cover
7
N.R.V. Spring
8
Top-Adaptor
9
Spacer
10
O-Ring
11
O-Ring
12
Cylinder
13
Piston
14
Snap Ring
15
Spacer
16
Containment Band
17
Bit Ring
18
Chuck Spacer
19
Chuck
20
End Cap
Service Kit, Repair Kit, Foot Valve, F/V Tool (Body), and F/V Tool (Pusher) available
info

Drill Bits
Ingersoll Rand Shank - QL 80
Size
Face Design
Button Type
Button Qty./Dia.
Weight
7 7/8" / 200 mm
Concave
Domed
31 x 16 mm
114.64 lbs.
8" / 203 mm
Concave
Domed
10 x 20 mm / 14 x 16 mm
113.54 lbs.
9 1/2" / 241 mm
Concave
Domed
10 x 16 mm / 18 x 20 mm
125.44 lbs.
10" / 254 mm
Concave
Domed
18 x 20 mm / 10 x 16 mm
142.20 lbs.
11 7/8" / 300 mm
Convex
Domed
34 x 20 mm
186.29 lbs.*
12 1/4" / 311 mm
Concave
Domed
42 x 20 mm
185.41 lbs.*
*Oversize