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8” Dominator 850

The Dominator 850 has been designed for high performance drilling in hard to medium rock formations, particularly mining applications.

Its class leading performance has been achieved with a larger piston and valveless air cycle providing 50% increase in stroke.

The Dominator 850 has a reversible cylinder for prolonged hammer life and benefits from a one piece top adaptor with N.R.V (Non Return Valve), this makes it easier to maintain and service the hammer.

At a Glance
Air pressure
Air flow
222mm - 270mm
8 3/4 - 10 5/8"
100 - 500 psi
(7 - 35 bar)
400 - 2000 cfm
11327 - 56634 l/min
Hammer Overview
Hammer Model DOM850
Part Number 600245
Shank QL80
Thread Connection 4 1/2" API Reg Pin
Minimum Bit Diameter222mm
Hammer Flat Size125mm (6.14")
Weight 180 Kg (396.8 lbs)
Outside Diameter 192mm (7.6")
Length (shoulder to shoulder) 1281mm (50.4")
Minimum Weight On Bit800 Kg (1760 lbs)
Maximum Weight On Bit2000 Kg (4400 lbs)

Air Consumption

Parts List Maintenance Kits
Type DOM850 Service Kit Repair Kit
Shank QL80
Item Description Part No. SK32 RK55
1Thread Protector207295NoNo
2Snap Ring783034YesYes
3N.R.V Seat602887NoNo
5Non Return Valve602285YesYes
6N.R.V Cover603696NoYes
8Top Adaptor603353NoNo
13Snap Ring783039YesYes
15Bit Guide Bush603360NoYes
16Bit Retaining Ring603359NoYes
17Chuck Spacer603358YesYes
Foot Valve603334NoYes

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