With multiple hammer units CD (Cluster drills) drill holes up to 70″ or 1778 mm. As a rule of thumb, the smallest hole diameter a DTH hammer can drill is its nominal size. A 4 inch hammer will drill a 4 inch (102 mm) hole. The limiting factor is the outside diameter of the hammer, because, as hole diameter reduces, airflow is restricted.
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CIR90 shank DTH hammer, find complete details about CIR90 shank DTH hammer, DTH, DTH hammer, Hammer Drill - china leader rock drilling tool supplier
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CIR70 CIR90 CIR110 CIR150 Low Air Pressure Down The Hole DTH Hammer for Stone Quarry Drilling. CIR series Low Air Pressure DTH Hammer. CIR Hammer is a new product combining the advantages of DHD Hammer and QCZ Hammer.The wind pressure of working is between 0.5-0.7MPa.
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CIR 90 Down-the-hole DTH drill bits Down the hole. Product Information: 1. wear resistance 2. high efficiency 3. long service life 4. direct selling with reasonable price 5. MOQ: 1pcs for checking the quality 6.customized order is available. General application: suitable for cutting, drilling various hard Non-ferrous materials, such as marble, granite, glass, ceramic, hard concrete and brick
Cir130 Dth Hammer Drill , Find Complete Details about Cir130 Dth Hammer Drill,Cir130 Dth Hammer,Dth Drill Hammer,Dth Hammer from Mining Machinery Parts Supplier or Manufacturer-Taizhou Kaiqiu Drilling Tools Co., Ltd. MENU MENU Alibaba.com $207.90 - $208.00 / Pieces
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CIR70 CIR90 CIR110 Low Air Pressure DTH Drilling Button Bits. CIR series DTH hammer, a kind of valve-equipped Low Air Pressure hammer with single piston, a plate valve and a central exhaust structure. The compressed air is adopted as the driving force.
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