The company is specialized in manufacturing DHT bit, DHT hammer, air-leg rock drill, product quality has reached advanced level in the industry.
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ZRC3.5-DHD3.5 Techinical Specifications
Length w/o bit
Weight w/o bit
Thread Rec. hole size
987 23 81 API 2 3/8 REG 90-110
Work pressure
Impact Frequency
Air consumption
Rec. rotation speed
1.0-2.5 25 at 1.7 Mpa 5-9 25-40
ZRC3.5-DHD3.5 DTH hammer features
1Mainly for blasting hole above 90mm, in mining and quarry;
2Adpot newest rock drilling theory, better transmission of energy, bigger power for each impact;
3Simple parts, more wear-resistence;
4Low air consumption, energy saving, fast penetration speed;
5Simple structure, easy maintance; highly matched parts, more realiable, low faliure rate; low disamble rate, long service life, low operating cost, very steady in performance.


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Add:No.3701, Zhuangjian Road, Kuiwen Economic Development District, Weifang City, Shandong Province, China