ZRC4A-M40 High Air Pressure without Footvalve DTH Hammers

ZRC4A-M40 Techinical Specifications
Length w/o bitWeight w/o bitDiameterThreadRec. hole size
10033899API 2 3/8 REG110-135
Work pressureImpact FrequencyAir consumptionRec. rotation speed
1.0-2.530 at 1.7 Mpa6-1525-40
ZRC4A-M40 DTH hammer features
1.Mainly for drilling hole above 110mm, in geothermal, water well, mining and quarry etc;
2.Drill bit without footvalve, and thus avoid the trouble caused by footvalve crack, broken, thermal expansion and contraction etc.
3.Low impact power consumption, fast impact frequency, 15%-20% faster in penetration speed than same model with footvalve type;
4.Low air consumption, energy saving, saving more than 10% oil than same model with footvalve type;
5.Simple 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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  • E-mail: zhongrui@drillingmaker.com
  • Tel. / Fax.: +86 0536 2288189
  • Add.: No. 3701, Zhuangjian Road, Kuiwen Economic Development District, Weifang City, Shandong Province, China
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