ZRC4-SD4 High Air Pressure with Footvalve DTH Hammers

ZRC4-SD4 Techinical Specifications
Length w/o bitWeight w/o bitDiameterThreadRec. hole size
(mm)(Kg)(mm)
108440.599API 2 3/8 REG110-135
Work pressureImpact FrequencyAir consumptionRec. rotation speed
(Mpa)(Hz)(m³/min)(r/min)
1.0-2.527 at 1.7 Mpa6-1525-40
ZRC4-SD4 DTH hammer features
1.Mainly for drilling hole above 110mm in quarry and mining;
2.Adpot more realiable air distribution method, Valvess type air distribution;
3.Simple parts, more wear-resistence;
4.Low air consumption, energy saving, fast penetration speed;
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: zrxs006@126.com
  • Tel. / Fax.: +86 536 8802 715
  • Add.: No. 3701, Zhuangjian Road, Kuiwen Economic Development District, Weifang City, Shandong Province, China
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