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Help CenterHd45a Impactor, 4-inch Quick Impactor, Dhd345k Impactor, Dhd340 Impactor, Gold4 Impactor
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[Features of DTH Hammer]:
Medium and high-pressure series hammers (DHD series)
Applied to drill mining blast holes with a diameter of (80 - 185mm)
Achieving a fast hole-drilling speed, the medium and high-pressure DTH hammer can convert high air pressure into a high perforation speed. It can operate under an air pressure of 0.56 - 2.46Mpa.
Improved component lifespan. The design principle of the medium and high-pressure DTH hammers of Zhangjiakou Xuanhua Tengda Drilling Machinery Co., Ltd. is to strive to extend the service life and reduce the maintenance workload. For example, the wear-resistant outer sleeve after hardening treatment can be reversed for use, thus extending the replacement period.
Long available time. Due to the use of fewer components, simple structure, and the use of wear-resistant components, the working time of the hammer can be extended.
The cost per foot of drilling is minimized. The increase in perforation speed greatly increases the footage per unit of fuel. Due to the simple component structure and long service life, the maintenance cost is minimized.
Product Model |
DHD3.5 |
DHD340A |
DHD345K |
DHD350 |
DHD360 |
DHD360K |
DHD380 |
DHD380K |
Drilling Diameter (mm) |
φ90 - 93 |
φ105-130 |
φ105-130 |
φ130-152 |
φ152-305 |
,φ152-305 |
φ203-350 |
φ203-350 |
Outer diameter (mm) |
φ81 |
φ92 |
φ98 |
φ114 |
φ136 |
φ142 |
φ181 |
φ180 |
Total length (mm) |
908 |
1052 |
994 |
1387 |
1450 |
1248 |
1551 |
1359 |
Weight (kg) |
21.8 |
38 |
40 |
69 |
126 |
130 |
277 |
270 |
Air pressure (MPa) |
0.8-2.1 |
0.8-2.1 |
0.8-2.1 |
0.8-2.1 |
0.8-2.1 |
0.8-2.1 |
0.8-2.1 |
0.8-2.1 |
Air consumption （m3/min） |
4.3-14.2 |
3.5-18 |
3.5-15 |
5.7-18 |
8.5-25 |
8.5-25 |
12-31 |
12-31 |
Impact energy (N﹒M) |
205 |
304 |
400 |
590 |
822 |
950 |
1560 |
1800 |
Impact frequency (times/min) |
950-1500 |
≥800 |
≥820 |
810-1470 |
820-1475 |
850-1600 |
860-1510 |
900-1800 |
Connection method with drill pipe |
External API 2-3/8” |
Internal API 2-3/8” |
External API 2-3/8” |
External API 3-1/2” |
External API 3-1/2” |
External API 3-1/2” |
External API 4-1/2” |
External API 4-1/2” |
Connection method with the drill bit |
φ53-8 |
φ64-8 |
φ64-8 |
φ84-4 |
φ99.5-8 |
φ99.5-8 |
φ128-10 |
φ128-10 |
Compatible drill bit shanks |
DHD3.5-90 /100 |
DHD340A- 105/115/ 130 |
DHD345K -105/115/ 130 |
DHD350-130 /140/152 |
DHD360-152/165/ 178/194/203/216/ 230/254/305 |
DHD360-152/165/ 178/194/203/216 230/254/305 |
DHD380-203 /216/230/254 310/350 |
DHD380K-203 /216/230/254 310/350 |
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