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Hjg HRC55 Reverse Circulation Hammer1
Drilling ToolsDth HammerRock Drilling
Changsha Heijingang Industrial Co., Ltd.
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Product Description HRC series reverse circulation DTH Hammer is the latest developed product of our company. It is mainly used for deep exploration drilling and ore grade control.It has the following characteristics:1. Based on previous experience of ordinary hammers, combined with the features of reverse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of hammers drilling with fast, smooth and continuous sampling.2. The internal structure is very simple with components of high rigidity, thus ensuring long life and easy maintenance of the hammer.3. The collection tube adopts an integrative design and can be replaced without disassembling the hammer. With carburizing treatment, it has good abrasive resistance.4. Equipped with bits designed with patent. Simply by replacing the drill bit, the same hammer can drill holes of different sizes ensuring that the sample is not contaminated.5. In difficult conditions such as loose soil, hard rock and plenty of water exists, sampling can be done well.Length(exclude bit)Weight(exclude bit)External DiameterBit ShankHole RangeConnection Thread1111 mm66.5 kg Φ126 mm HRC55Φ133mm _ Φ152mmUpon the thread of the drill tubeWorking PressureImpact rate at 0.5 MPaRecommended Rotary SpeedAir Consumption1.0 MPa1.8 MPa2.4 MPa1.5 - 3.5 MPa35 Hz25-40 rpm16 m3/min 22 m3/min28 m3/min
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