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China, Chinese Drill Rod Water Well Casing Pipe Drilling Tool DTH Rock Mining1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Drilling ToolsDrill RodDrill PipeDTH Drilling Rod
PUTIAN QIDELI ENGINEERING EQUIPMENT CO., LTD.
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Product DescriptionHigh-Performance DTH Drill RodDTH drill rods (also referred to as drill tubes or drill pipes) serve as the mechanism for transmitting impact force and rotational torque to DTH hammers and DTH bits, while also providing a passage for airflow.SpecificationIn DTH drilling, the percussive DTH hammer is located behind the drill bit, inside the hammer, a piston powered by compressed air gives the drill bit its striking power, while the DTH hammer casing gives guidance to the drill bit; the drill string rotates while the drilling hammer continuously strikes down into the rock.The DTH drill rods transmit the necessary feed force and rotation to the DTH hammer and bit, as well as compressed air for the DTH hammer, more dth drill rods are added to the top of the drill string as the hole gets deeper.The fast hammer impact breaks hard rock into small particles, which are blown up by the air exhaust from the DTH hammer.Functions of DTH Drill Rods:Delivery High Pressure Air: DTH drill rod is responsible for transporting high pressure air from the compressor to DTH hammer, which under pressure, drives DTH drill bit to break rock.Transfer Lifting Force: DTH drill rods effectively transmits the rotary power (torque) of the drill rigs to DTH drill bit, driving it to rotate and cut through rock or soil.Transfer Rotational Force: During drilling, DTH drill rods must withstand downward thrust from the drill rigs as well as reactionary forces caused by varying rock hardness.right elevationleft elevationfront elevationTechnical Specifications(Custom configurations available upon request.)After Sales ServiceStandard Warranty: 12 months or 2,000 operating hours (whichever comes first).Extended Warranty: Optional coverage up to 36 months.Global Support: 24/7 technical assistance and spare parts supply.Training: On-site or remote operation/maintenance training.Company ProfileXXX Heavy Machinery Co., Ltd.QIDELI, the professional engineering equitment company, was found in 1990.It has a glory history of over 35 years. Until now,we have our own workshops of drilling rig, DTH hammer, and drill pipe,also all kinds of DTH bits.Our construction tools are very popular among many mining companies either at domestic or abroad.QIDELI adheres to the concept of "long-term cooperation and win-win", and has formed a strategic cooperative relationship with many domestic counterparts.We can provide one-stop services for global rock drilling companies.Why Choose Us?Other ProductsOEM/ODM capabilitiesCompetitive pricing & bulk discountsFast shipping & customs clearance supportTurnkey project solutionsDTH HammerTop Hammer ToolDrill RigAir CompressorFAQ1. Question: What are common diameters of DTH drill rods? Answer: Common diameters are 76mm, 89mm, 102mm, 114mm, 127mm, and 140mm.2. Question: How does DTH drill rod diameter affect drilling? Answer: It impacts up hole velocity and debris removal efficiency—larger diameters improve both.3. Question: What are typical wall thicknesses of DTH drill rods? Answer: Typical ones include 76x4mm, 76x6mm, 89x6mm, 102x8mm, 114x8mm, 127x8mm, 140x10mm.4. Question: What factors decide DTH drill rod length selection? Answer: Mainly operational space and the drill rig's feed length.5. Question: What are common thread types for DTH drill rods? Answer: API REG (e.g., 2.3/8″) and API IF (for deep water wells, e.g., 2.3/8″).6. Question: When to use DTH drill rods with/without wrench flats? Answer: Use those with wrench flats for manual/built-in wrench changes; use those without for rigs with automatic rod carousel.
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