4” Super Dominator 450HD

The Super Dominator 450 has been specifically designed for high production drilling in blast hole applications.

The hammer is robust and has few parts, making it user friendly and reliable. The Super Dominator 450 is fitted with a N.R.V
(Non Return Valve) in the top adaptor for a quick, easy inspection and maintenance operation. A fixed air distributor in the top adaptor means the 450 requires no shimming which simplifies servicing.

It also has no liner which increases the piston power output.

The Super Dominator 450 utilizes Halco’s 12 spline shank which has a simplistic robust geometry combined with increased drive contact area.

Air Consumption
110mm - 140mm
4 5/16 - 5 1/2
Halco 4.5
100 - 507 psi
7 - 35 bar
500 Kg (1100 lbs)
Hammer Overview
Hammer Model Super Dominator 450HD
Part Number 600421
Shank Halco 4.5
Thread Connection API Reg Pin Up 2 3/8"
Minimum Bit Diameter115mm
Hammer Flat Size65mm (2.56")
Weight 42.0 Kg (92.6 lbs)
Outside Diameter 103.5mm (4.074")
Length (shoulder to shoulder) 914mm (36.0")
Minimum Weight On Bit250 Kg (550 lbs)
Maximum Weight On Bit
Parts List
Type Super Dominator 450HD Maintenance Kits
Shank Halco 4.5 Service Kit Repair Kit
Item Description Part No. SK59 RK141
1Thread Protector200111NoNo
2Snap Ring783049YesYes
3N.R.V Seat603919NoYes
5Non Return Valve603918NoYes
6N.R.V Spring760142NoYes
7Top Adaptor600677NoNo
8 & 9O-Ring (2)768190YesYes
12Guide Bush604314NoYes
14Bit Retaining Ring603948NoYes
15Chuck Lock Ring602733YesYes
17End Cap741019NoNo
Foot Valve603951NoYes