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  5" Super Dominator 550 HD cutaway

5" - Super Dominator 550 HD QL 50

Available Shank: IR QL 50

The Super Dominator 550 HD QL 50 has been designed to give maximum performance in blast-hole applications. This hammer has been tuned to efficiently utilize the air supply to give optimum penetration rates. The Super Dominator 550 HD QL 50 is suitable for drilling over a wide range of air pressures, excelling at higher pressures. The unique top-adaptor with N.R.V. (Non-Return-Valve)
makes this hammer easy to maintain and service.

Suitable for operation at air pressures of 100 - 435 psi.
Drilling diameters of 5 5/16 - 6 1/2”.

Click to enlarge
Super Dominator 550 HD QL 50 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.
 
 
 
 
 
 
Heavy duty cylinder for extended hammer life.
 
 
 

Super Dominator 550 HD QL 50 part breakdown
Hammer Overview
Hammer Type
Super Dominator 550 HD QL 50
Shank
Ingersoll Rand QL 50
Top Thread
3 1/2" API Reg Pin
Hammer Flat Size
3.544"
Weight
147.71 lbs.
Outside Diameter
4.85"
Make Up Length
38.40"
Recommended Minimum Thrust
900 lbs.
Recommended Maximum Thrust
1980 lbs.
Parts List
Hammer Type
Super Dominator 550 HD
Shank
QL 50
Item
Description
1
Thread Protector
2
Snap Ring
3
N.R.V. Seat
4
O-Ring
5
N.R.V.
6
N.R.V. Spring
7
N.R.V. Shield
8
Top-Adaptor
9
O-Ring
10
O-Ring
11
Cylinder
12
Piston
13
Snap Ring
14
O-Ring
15
Bit Guide Bush
16
Bit Retaining Ring
17
Chuck Lock Ring
18
Chuck
19
End Cap
Service Kit, Repair Kit, Foot Valve, F/V Tool (Body), and F/V Tool (Pusher) available
info

Drill Bits
Ingersoll Rand QL 50 Shank
Size
Face Design
Button Type
Button Qty./Dia.
Weight
5 5/16" / 135 mm
Flat
Domed
7 x 16 mm + 8 x 16 mm Long
33.73 lbs.
5 1/2" / 140 mm
Flat
Domed
7 x 16 mm + 8 x 16 mm Long
35.94 lbs.
5 1/2" / 140 mm
Concave
Domed
15 x 16 mm
35.27 lbs.*
5 7/8" / 150 mm
Flat
Domed
8 x 16 mm + 8 x 16 mm Long
36.60 lbs.*
6 1/2" / 165 mm
Convex
Domed
20 x 16 mm
41.89 lbs.*
*Oversize