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  • Name: DTH Hammer
  • No: 11
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DTH Hammer

With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards.It is durable for being produced with advanced craftwork and good material.
It also has the following advantages:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe

Technical Data:

DTH hammer type

HD35

HD45

HD55

Length(less bit)

930mm

1030mm

1170mm

Weight(less bit)

24.5kg

39.2kg

71.5kg

External diameter

Φ81mm

Φ99m

Φ125m

Bit shank

IR3.5”COP34

COP44/DHD340

COP54/DHD350R

Hole range(mm)

Φ90-110

Φ110-135

Φ135-155

Connection thread

API 2 3/8” Reg.

API 2 3/8” Reg.

API 2 3/8” Reg.

   

API 3 1/2” Reg.

Working pressure

0.5-2.5Mpa

0.5-2.5Mpa

0.5-2.5Mpa

Impact rate at 17 Bar

28Hz

27Hz

25Hz

Recommended Rotation speed

28r/min

25-40r/min

20-30r/min

Air consumption

10bar

80L/s

100L/s

1450L/s

18bar

1600L/s

180L/s

280L/s

24bar

210L/s

250L/s

390L/s