High Air Pressure DTH Hammer with Foot Valve

overview

Introduction

The DTH hammer is also called pneumatic drill hammer. It is the power machine on the hole bottom that takes compressed air as the dynamic medium and uses the energy of compressed air to generate a continuous impact load. The compressed air can also be used as washing medium. It is mainly used in hydrological well drilling, core-free geological drilling, geological disaster prevention engineering and mine drilling. It is applicable for gravel and hard rock, it can also be used in soft soil when equipped with special structure drill bit.

Advantages

* Valveless air distribution, more reliable.

* The piston is simple in structure and not easy to damage.

* More efficient energy transfer, fast drilling speed, low air consumption and low oil consumption.

* Fewer internal parts, simple structure, and all parts are hardened by heat treatment, so the hammer has long service life, less failure and convenient maintenance.

* Easy to disassemble because the top sub and drive chuck are connected with the external cylinder by multiple thread.

Technical Data

Length (bit excluded)	Weight (bit excluded)	External diameter	Hole range	Working pressure	Impact frequency	Recommended rotation speed	Air consumption
930mm	25kg	82mm	90-110mm	1.0-1.5Mpa	28HZ(1.5Mpa)	25-40r/min	1.0Mpa		1.5Mpa
							4.5m3/min		9.0m3/min
1030mm	39kg	99mm	110-135mm	1.0-2.5Mpa	27HZ(1.7Mpa)	25-40r/min	1.0Mpa	1.8Mpa		2.4Mpa
							6m3/min	10m3/min		15m3/min
1214mm	76.5kg	125mm	135-155mm	1.0-2.5Mpa	25HZ(1.7Mpa)	20-35r/min	1.0Mpa	1.8Mpa		2.4Mpa
							9m3/min	15m3/min		23m3/min
1248mm	100.0kg	142mm	155-190mm	1.0-2.5Mpa	23HZ(1.7Mpa)	20-30r/min	1.0Mpa	1.8Mpa		2.4Mpa
							10m3/min	20m3/min		28.5m3/min
1212mm	95kg	148mm	155-190mm	1.0-2.5Mpa	23HZ(1.7Mpa)	20-30r/min	1.0Mpa	1.8Mpa		2.4Mpa
							10m3/min	20m3/min		28.5m3/min
1492mm	188kg	180mm	195-254mm	1.0-2.5Mpa	20HZ(1.7Mpa)	20-30r/min	1.0Mpa	1.8Mpa		2.4Mpa
							15m3/min	26m3/min		34m3/min
1465mm	182kg	185mm	195-254mm	1.0-2.5Mpa	20HZ(1.7Mpa)	15-25r/min	1.0Mpa	1.8Mpa		2.4Mpa
							15m3/min	26m3/min		34m3/min
1502mm	290kg	225mm	254-311mm	1.0-2.5Mpa	18HZ(1.7Mpa)	15-25r/min	1.0Mpa	1.8Mpa		2.4Mpa
							22m3/min	40m3/min		55m3/min
1880mm	487kg	275mm	305-445mm	1.0-2.5Mpa	16HZ(1.7Mpa)	15-25r/min	1.0Mpa	1.8Mpa		2.4Mpa
							30m3/min	56m3/min		78m3/min