2″ Mach 20

The valved design of the Mach 20 provides high performance at low pressure. A non return valve is fitted to prevent flooding when drilling in water.

The Mach 20 has a strong robust design to withstand heavy duty applications. The Mach 20 is fitted with adjustable chokes to give three levels of air volumes for different drilling conditions. The unique drill bit design for Mach 20 does not use foot valve which reduces the possibility of hammer failure. Mach 20 shank has a long service life and reduces contact stresses and wear rates.

Suitable for operation at air pressures of 100 – 250 psi (7 – 17 bar). Drilling diameters of 70 – 76mm (2 3/4 – 3”).


Air Consumption

AT A GLANCE

SIZE	SHANK	AIR PRESSURE
70mm - 76mm 2 3/4 - 3"	Halco 2	100 -250 psi (7 - 17 bar)

Hammer Overview
Hammer Model			Mach 20
Part Number			600169
Shank			Halco 2
Thread Connection			50mm DIN405 6 TPI Box
Minimum Bit Diameter			70mm
Hammer Flat Size			48mm (1.89")
Weight			13.0 Kg (28.6 lbs)
Outside Diameter			62mm (2.44")
Length (shoulder to shoulder)			840mm (33.0")

Parts List
Type	Mach 20		Maintenance Kits
Shank	Halco 2		Service Kit	Repair Kit
Item	Description	Part No.	SK18	RK30
1	Thread Protector	200002	No	No
2	Top Adaptor	602715	No	No
3	Wear-Space (Option)	602726	Yes	Yes
4	Non Return Value	602727	No	Yes
5	N.R.V Spring	760111	Yes	Yes
6	N.R.V Housing	602720	No	No
7	Valve Centraliser	02724	Yes	Yes
8	Valve	602725	Yes	Yes
9	Solid Bleed Plug - Std	732025	Yes	Yes
9a	Bleed Plug - 3mm	602736	Yes	Yes
10	Air Distributor	602719	No	Yes
11	Liner	602717	No	No
12	Cylinder	602714	No	No
13	Piston	602718	No	No
14	Piston Guide Bush	602723	No	No
15	Bottom Spacer	602722	No	Yes
16	Bit Retaining Ring	602721	No	Yes
17	Chuck Lock Ring	602729	Yes	Yes
18	Chuck	602716	No	Yes