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DTH hammers are working units of DTH drill rigs, which drive piston forth and back to impact DTH bits for breaking stones by compressed air.
DTH hammers are working units of DTH drill rigs, which drive piston forth and back to impact DTH bits for breaking stones by compressed air.
It is a kind of valve less high air pressure DTH hammer with foot valve.
1. Valve less air distribution. More reliable.
2. Simple design of the piston. Long life span.
3. More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
4. Fewer internal parts, simple structure, long life span, 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 by multiple steps thread.
|
Item Description |
Weight (kg) |
||||
|
|
KD35 |
KD45 |
KD55 |
KD65 |
KD85 |
|
4.20 |
6.50 |
15.00 |
20.00 |
41.00 |
|
0.01 |
0.01 |
0.01 |
0.02 |
0.02 |
|
0.01 |
|
|
|
0.2 |
|
0.20 |
0.42 |
1.00 |
1.00 |
1.50 |
|
0.02 |
0.04 |
0.04 |
0.04 |
0.10 |
|
0.04 |
0.04 |
0.08 |
0.08 |
0.42 |
|
1.40 |
2.20 |
3.70 |
5.00 |
12.50 |
|
1.60 |
2.30 |
4.50 |
5.00 |
8.60 |
|
5.40 |
9.00 |
15.50 |
23.60 |
41.00 |
|
10 .External Cylinder |
9.50 |
15.0 |
30.00 |
36.80 |
62.00 |
|
11.Guided Sleeve |
|
|
|
2.10 |
9.60 |
|
0.01 |
0.01 |
0.01 |
0.02 |
0.02 |
|
0.20 |
0.20 |
0.30 |
0.60 |
1.20 |
|
0.01 |
|
|
|
0.20 |
|
1.95 |
3.50 |
6.40 |
6.00 |
17.50 |
|
5.00 |
9.00 |
16.00 |
26.00 |
40.00 |
|
Model |
KD35 |
KD45 |
KD55 |
KD65 |
KD85 |
|
Length(Without Bit) |
930 mm |
1030 mm |
1214 mm |
1248 mm |
1482 mm |
|
Weight(Without Bit) |
25.00 kg |
39.00 kg |
76.50 kg |
100.00 kg |
188.00 kg |
|
External Diameter |
φ82 mm |
φ99 mm |
φ126 mm |
φ142 mm φ144 mm φ146 mm φ148 mm |
φ180/φ185 mm |
|
Bit Shank |
DHD3.5 |
COP44/DHD340 |
COP54/DHD340 |
COP64/DHD360 |
COP84/DHD380 |
|
Hole Range |
φ90-φ110mm |
φ110-φ135mm |
φ135-φ1155mm |
φ155-φ190mm |
φ195-φ254mm |
|
Connection Thread |
API 2 3/8" Reg |
API 2 3/8" Reg |
API 2 3/8" Reg API 3 1/2" Reg API 2 7/8" Reg |
API 3 1/2" Reg |
API 4 1/2" Reg |
|
Working Pressure |
1.0-1.5 Mpa |
1.2-2.0 Mpa |
1.3-2.3 Mpa |
1.5-2.5 Mpa |
1.5-3 Mpa |
|
Impact Rate at 17 Bar |
28 HZ |
27 HZ |
25 HZ |
23 HZ |
27 HZ |
|
Recommended Rotation Speed |
25-40 r/min |
25-40 r/min |
20-35 r/min |
20-30 r/min |
20-30 r/min |
|
Air Consumption |
1.0Mpa:4.5 m3/min |
1.0Mpa:6 m3/min |
1.0Mpa:9 m3/min |
1.0Mpa:10 m3/min |
1.0Mpa:15 m3/min |
|
1.5Mpa:9.0 m3/min |
1.8Mpa:10 m3/min |
1.8Mpa:15 m3/min |
1.8Mpa:20 m3/min |
1.8Mpa:26 m3/min |
|
|
|
2.4Mpa:15 m3/min |
2.4Mpa:23 m3/min |
2.4Mpa:28.5 m3/min |
2.4Mpa:34 m3/min |
