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  3" Dominator 375 cutaway

3" - Dominator 375

Available Shanks: IR DHD 3.5, MD 3.5

Dominator 375 hammer gives up to a 25% increase in performance compared to Dominator 350 and Dart 350. This exceptional hammer is simple, robust, and has a high penetration rate.

The Dominator 375 has an integral N.R.V. (Non-Return-Valve) with an adjustable air bleed system to adjust air volume. This hammer has a liner and solid piston design. This hammer has few internal parts, which makes on-site servicing easy, with minimum tools needed. The MD 3.5 shank drill bit can be fitted for improved service life and heavy duty applications.

Suitable for operation at air pressures of 100 - 350 psi.
Drilling diameters of 3 1/2 - 4 1/8”.

Click to enlarge
Dominator 375 Air Consumption table
Figures are based on theoretical data.
 
 
 
 
Internal N.R.V. (Non-Return-Valve) to prevent flooding when drilling in water.
 
 
 
Solid piston
with liner
support.
 
 
 
 
 
 
 
 
 
 

Dominator 375 part breakdown
Hammer Overview
Hammer Type
Dominator 375
Shank
MD 3.5
IR 3.5
Top Thread
2 3/8 API Reg Pin
2 3/8 API Reg Pin
Hammer Flat Size
2.520"
2.520"
Weight
52.91 lbs.
52.91 lbs.
Outside Diameter
3.35"
3.35"
Make Up Length
34.84"
34.84"
Recommended Minimum Thrust
330 lbs.
330 lbs.
Recommended Maximum Thrust
660 lbs.
660 lbs.
Parts List
Hammer Type
Dominator 375
Shank
MD 3.5 HD / IR 3.5
Item
Description
1
Thread Protector
2
Top-Adaptor
3
N.R.V. Plug - Solid, N.R.V. Plug 1/8",
N.R.V. Plug 3/16"
4
N.R.V.
5
N.R.V. Spring
6
Shim - 4.9 mm, Shim 5.3 mm, Shim 5.7 mm
7
Compression Spring
8
Air Distributor
9
O-Ring
10
Liner
11
Cylinder
12
Piston
13
Snap Ring
14
Bit Retaining Band
15
Bit Retaining Rings
16
Chuck
17
End Cap
Service Kit, Repair Kit, Foot Valve, F/V Tool (Body), and F/V Tool (Pusher) available
info

Drill Bits
IR 3.5 Shank
Size
Face Design
Button Type
Button
Qty./Dia.
Weight
3 1/2" / 90 mm
Convex
Semi-Ballistic
13 x 11 mm
8.38 lbs.
3 1/2" / 90 mm
Convex
Domed
13 x 11 mm
8.38 lbs.
3 3/4" / 95 mm
Convex
Semi-Ballistic
15 x 11 mm
8.82 lbs.
3 3/4" / 95 mm
Convex
Domed
15 x 11 mm
8.82 lbs.
3 15/16" / 100 mm
Convex
Ballistic
15 x 11 mm
9.92 lbs.
3 15/16" / 100 mm
Convex
Domed
15 x 11 mm
9.92 lbs.
4 1/8" / 104 mm
Convex
Domed
8 x 13 mm / 8 x 11 mm
10.81 lbs.
MD 3.5 Shank
3 3/4" / 95 mm
Convex
Parabolic
11 x 14 mm
11.02 lbs.
3 15/16" / 100 mm
Flat Faced
Domed
16 x 11 mm
11.46 lbs.