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Foot Valve Sandvik DTH Hammer for 12'' DHD1120 / SD12 / HUMA120 / HUMA125
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Foot Valve Sandvik DTH Hammer for 12'' DHD1120 / SD12 / HUMA120 / HUMA125

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Foot Valve Sandvik DTH Hammer for 12'' DHD1120 / SD12 / HUMA120 / HUMA125

 

12'' DHD1120 , SD12, HUMA120 , HUMA125 Shank High pressure DTH hammer for big diameter hole drilling

 

Introduction

It is a kind of valveless high air pressure DTH hammer with foot valve.

The rock hammer has the fellow advantages

1: Valveless air distribution. more reliable.

2. The rock impacter are simple design of the piston, long life.

3. More efficient energy transfter,faster drilling speed, lower air consumption and lower oil consumption.

4. Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated.

5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected multi-step thread.

 

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 with foot valve

Specification

Item Description  Weight Parts No.
1.Top Sub 70 HSD112001
2.O-Ring of Top Sub 0.04 HSD112002
3.Breakout Ring 0.8 HSD112003
4.Check Valve 3 HSD112004
5.Spring 0.1 HSD112005
6.Compression Buffer        1 HSD112006
7.Air Distributor 20 HSD112007
8.Internal Cylinder 23 HSD112008
9.Piston 125 HSD112009
10.External Cylinder 170 HSD112010
11.Guided Sleeve 16 HSD112011
12.O-Ring of stop ring 0.04
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Mr. Mr. Jack Cheng
Tel: 86-10-84673566
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Xuanhua Jinke Drilling Machinery Co., Ltd.
Xuanchi Road,Industrial Development Zone,Xuanhua, Beijing, China (Mainland)
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