Delivery Time:In stock or as order quantity
Certification:ISO,CE

3 - 12 inch API REG Thread DTH Hammer for Mining Drilling Tool High Impact Frequency

High air pressure DTH hammer without foot valve 3-12inch

Introduction

High air pressure DTH hammer without foot valve, our newest design. It is also one of the most advanced DTH Hammer in the world.

It has the fellow advantages

1:Out of the trouble of foot valve fracture and expansion and contraction.

2. Simple design of the piston, long life.

3. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.

4. Simple structure, reliable parts, long life, easy and cheap maintenance.

5. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.

Hammer shank available:
1. BR shank series: BR1, BR2, BR3;
2. Cop shank series: Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;
3. DHD shank series: DHD3.5, DHD340,DHD350, DHD360, DHD380;
4. SD shank series: SD4, SD5, SD6, SD8, SD10, SD12, SD15, SD18;
5. Mission shank series: Mission40, Mission50, Mission 60, Mission 80;
6. QL shank series: QL30, QL40, QL50, QL60, QL80;
7. NUMA shank series: NUMA120, NUMA125, NUMA180, NUMA240;
Other hammer shanks can be available according to customer\'s drawing or samples.

Technical Parameters of High air pressure DTH hammer without foot valve

Specification

Model	External Diameter	Bit Shank	Hole Range	Working Pressure	Air Consumption
HD25A	71mm	HD25      CWG76	76-90mm	1.0-1.5Mpa	1.0-1.5Mpa	4-6m3/min
HD35A	82mm	IR3.5	90-115mm	1.0-1.5Mpa	1.0-1.5Mpa	3.8-7.5m3/min
HD45A	99mm	COP44     DHD340	110-135mm	1.0-1.5Mpa	1.0-1.5Mpa	6-15m3/min
HD45S	92mm	COP44     DHD340	105-120mm	1.0-1.5Mpa	1.0-1.5Mpa	5-13m3/min
HSD4A	99mm	SD4	100-135mm	1.0-2.0Mpa	1.0-2.4Mpa	6-14m3/min
HM4A	99mm	HM4	100-135mm	1.0-2.5Mpa	1.0-2.4Mpa	5-14m3/min
HQL4A	99mm	QL40	100-135mm	1.0-2.5Mpa	1.0-2.4Mpa	5-14m3/min
HD55A	125mm	COP54   DHD350R	135-155mm	1.0-2.5Mpa	1.0-2.4Mpa	7-19m3/min
HD55CA	125mm	HD55CDHDHD350Q	135-155mm	1.0-2.5Mpa	1.0-2.4Mpa	8-19m3/min
HM5A	125mm	HM5	135-155mm	1.0-2.5Mpa	1.0-2.4Mpa	7-19m3/min
HSD5A	125mm	SD5	135-155mm	1.0-2.5Mpa	1.0-2.4Mpa	7-19m3/min
HQL5A	125mm	QL50	135-155mm	1.0-2.5Mpa	1.0-2.4Mpa	7-19m3/min