Mach 20 DTH Hammer and Mach 44 DTH Hammer
2inch 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 reduces contact stresses and wear rates.
Suitable for operation at air pressures of 100-250psi(7-17bar). Drilling diameters of 70-76mm(2 3/4-3”).
|Hammer Type||Mach 20||Mach 20|
|Shank||Halco Mach 20||Halco Mach 20|
|Top Thread||50mm DIN 405 6TPI BOX||40mm DIN 405 6TPI BOX|
|Hammer Flat Size||48mm(1.890")||48mm(1.890")|
|Outside Diameter||62mm(2 7/16")||62mm(2 7/16")|
|Make Up Length||840mm(33")||840mm(33")|
|Recommended Maximum Thrust||150Kg(330 lbs)||150Kg(330 lbs)|
4” Mach 44
The Mach 44 is a general purpose hammer suitable for all rock conditions at a wide range of air pressure.
With a proven track recode of performance and reliability, the Mach 44 operates at a high frequency which makes it ideal for broken unstable ground conditions.
|Hammer Type||Mach 44|
|Thread Connection||2 3/8" API Reg Pin Up|
|Minimum Bit Diameter||110mm|
|Hammer Flat Size||65mm(2.560")|
|Length (shoulder to shoulder)||1000mm(39.38")|
|Minimum weight on Bit||250Kg(550 lbs)|
For more information please contact:
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
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WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
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Website: http://www.roschen.com ; http://www.roschen.net