DHD1120 SD12 NUMA120 NUMA125 DTH hammers

Brief info:DHD1120 SD12 NUMA120 NUMA125 DTH hammers, US $ 4,000 - 10,000 / Piece, Hunan, China, SOLLROC, DHD1120 SD12 NUMA120 NUMA125.Source from Changsha Sollroc Engineering Equipments Co., Ltd. on Alibaba.com.

Product Application

DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering. it has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain.

Futures

- 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.

Product Description

12" DTH hammer shank DHD1120 SD12 NUMA120 NUMA125 technical specifications:

	DHD1120	SD12	NUMA120	NUMA125
Length(less bit)	1880mm	1880mm	1880mm	1900mm
Weight (less bit)	474.0kg	487.0kg	475.00kg	480.0kg
External diameter	275mm	275mm	275mm	275mm
Bits shank	DHD1120	SD12	NUMA120	NUMA125
Bits diameter	305mm-445mm	305mm-445mm	305mm-445mm	305mm-445mm
Connection thread	API 6 5/8" Reg	API 6 5/8" Reg	API 6 5/8" Reg	API 6 5/8" Reg
Air pressure	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa

* Hammers without footvalve are available.
* External diameter of hammer is adjustable according to customers' requests.
* Shock absorbers and Hexagonal Joints are available.

Detailed Images