QL40 DTH HAMMER

1.Heat treated piston and internal cylinder guiding system is reasonably structured to achieve the highest efficiency and the largest impacting power.The penetration speed is 10%-30% faster than other products of the
same type.
2.Fine CNC machining tolerance and specifications coupled with
quality assembly lead to great reliability and performance.
3.Hammer front structure design: when pulling out the hammer,the last impact of the piston would fall on the step of piston case,ensuring the safety of the driver sub splines and the retainer ring.
4.Save Lubrication Oil
5.East operation and fix
6.Longer working life

Description
Inquiry

The STR QL series DTH Hammer: The STAROCKDRILL STR QL series hammers can fit the DTH bits with QL shank. Due to its optimized and robust design, in addition the superior material makes the DTH hammer longer life, less air consumption and 15% higher penetration speed than conventional DTH hammer in the market.

The below is the specification of STR QL series DTH hammer:

STR QL hammer size	STR QL hammer working pressure	The impact frequency when it is working on 18Bar
STR QL40	6 bar ~ 35 Bar	31Hz
STR QL50	6 bar ~ 35 Bar	30Hz
STR QL60	6 bar ~ 35 Bar	28Hz
STR QL80	6 bar ~ 35 Bar	23Hz