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Reverse circulation Hammer
1.efficient energy transfer
2.faster drilling speed
3.lower oil consumption
4.longer life,less
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
Pictures:
1.efficient energy transfer
2.faster drilling speed
3.lower oil consumption
4.longer life,less
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
|
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. |
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|
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 |
|
|
DTH hammer type |
HD55C |
HD65 |
HD85 |
|
|
Length(less bit) |
1160mm |
1248mm |
1487mm |
|
|
Weight(less bit) |
70.00kg |
98.00kg |
188.00kg |
|
|
External diameter |
Φ125mm |
Φ142m |
Φ180m |
|
|
Bit shank |
HD55CDHD350Q |
COP64/DHD360 |
COP84/DHD380 |
|
|
Hole range(mm) |
Φ135-155 |
Φ155-190 |
Φ195-254 |
|
|
Connection thread |
API 2³/8" Reg. |
API 2³/8" Reg. |
API 41/2" Reg. |
|
|
API 31/2" Reg. |
||||
|
Working pressure |
0.5-2.5Mpa |
0.5-2.5Mpa |
0.5-2.5Mpa |
|
|
Impact rate at 17 Bar |
25Hz |
23Hz |
20Hz |
|
|
Recommended Rotation speed |
20-30r/min |
15-25r/min |
15-20r/min |
|
|
Air consumption |
10bar |
140L/s |
175L/s |
190L/s |
|
18bar |
280L/s |
3400L/s |
370L/s |
|
|
24bar |
390L/s |
475L/s |
495L/s |
|
Pictures: