Hql40 DTH Hammer for Drilling

• Certification: ISO 9001:2008
• Standard: ASTM
• Surface Treatment: Polishing
• Manufacturing Process: Forging
• Material: Alloy Steel
• Transport Package: Carbon+Plywood Case
• Model NO.: QL40
• Specification: QL40
• Trademark: SOLLROC
• Origin: China

Product Description

Features
Valveless air distribution. More reliable.
Simple design of the piston. Long life.
More efficient energy transfer, fact drilling speed, lower air consumption and lower oil consumption.
Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated.
Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.

Hammer overview

shank	QL40
Length(less bit)	1097mm
External diameter	99mm
Top sub thread	API 2 3/8"REG
Weight(less bit)	41kg
Hole range	110mm-135mm
Working pressure	1.0-2. 5Mpa
Impact rate at 1.4Mpa	27Hz
Recommended rotation speed	25-40r/min
1.0Mpa	6m³/min
Air consumption     1.8Mpa	10m³/min
2.4Mpa	15m³/min