Blue Casing Drilling System Down The Hole Hammer 1.0-3.0Mpa Pressure

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Description 1. according to China's mining conditions, to absorb the advanced technology of domestic and foreignimpactor and design and manufacture of the latest products. 2. reasonable selection of materials, advanced manufacturing technology, quality assurance perfect. 3. has higher drilling speed. 4. can provide hardening treatment in order to prolong the service life and reduce the cost of use. 5. single impact power is large, and the power consumption of broken rock is low. 6. piston and bit weight to have the best momentum transfer. 7. the modern theory is adopted in the structural design, which makes the stress wave duration longer,the stress amplitude is lower, and the piston life is long. Applications Widely used in mines, quarries, earthworks and other engineering drilling blasting hole, guardrail hole,mountain reinforcement, anchorage and other engineering holes, geothermal exploration hole, Well bore and other fields. Specifications - - - - Technical Data | Length(Without Bit) | ND142A | ND180A | ND225A | ND275A | ND330A | ND475A | ND525A | 1388mm | 1520mm | 1745mm | 2626mm | 3870mm | 4080mm | 4260mm | Weight(Without Bit) | 102.00kg | 178.00kg | 315.00kg | 650.00kg | 1050.00kg | 2775.00kg | 3626.00kg | External Diameter | 142mm | 180mm | 225mm | 275mm | 330mm | 475mm | 525mm | Bit Shank | DHD360 | QL80 | NUMA100 | NUMA125 | ND330 | ND475 | ND525 | Hole Range | 155-195mm | 195-254mm | 254-311mm | 305-445mm | 350-660mm | 508-706mm | 610-800mm | Connection Thread | API3 1/2REG | API4 1/2REG | API4 1/2REG API6 5/8REG | API6 5/8REG API7 5/8REG | API7 5/8REG | API8 5/8REG | API8 5/8REG | Working Pressure | 1.0-2.5Mpa | 1.8-3.0Mpa | 1.8-3.0Mpa | 1.8-3.0Mpa | 1.8-3.0Mpa | 2.0-3.0Mpa | 2.0-3.0Mpa | Impact Rate at 17 Bar | 25HZ | 20HZ | 20HZ | 20HZ | 20HZ | 20HZ | 20HZ | Recommended Rotation Speed | 20-30r/min | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | Air Consumption | 1.0Mpa: 9.0m/min 1.8Mpa: 18.0m/min 2.4Mpa: 26.0m/min | 1.0Mpa: 12.0m/min 1.8Mpa: 22.0m/min 2.4Mpa: 28.0m/min | 1.0Mpa: 22.0m/min 1.8Mpa: 40.0m/min 2.4Mpa: 65.0m/min | 1.0Mpa: 28.0m/min 1.8Mpa: 50.0m/min 2.4Mpa: 71.0m/min | 1.0Mpa: 32.0m/min 1.8Mpa: 58.0m/min 2.4Mpa: 85.0m/min | 1.0Mpa: 56.0m/min 1.8Mpa: 75.0m/min 2.4Mpa: 85.0m/min | 1.0Mpa: 50.0m/min 1.8Mpa: 80.0m/min 2.4Mpa: 99.0m/min | - - - - Feature Advantage 1. Price commitment: in order to ensure the high reliability of products, raw material selection are usinggrapefruit brand products; under the same competitive conditions, and not to reduce product technicalperformance on the basis of sincerity at a favorable price to customers. 2. Quality commitment: product manufacturing and testing have quality records and inspection data; theperformance of the product can withstand customer inspection. 3. Customer service: in order to create new diamond brand, enhance the visibility of enterprises,establishcorporate image, we serve customers with the principle of "preferential prices, good service, reliableproduct quality" principle. - - - - Item Description | Weight(kg) | ND142A | ND180A | ND225A | ND275A | ND330A | ND475A | ND525A | 1, Top Sub | 20.00 | 34.00 | 59.00 | 230.00 | 320.00 | 800.00 | 960.00 | 2, O Ring Of Top Sub | 0.02 | 0.015 | 0.03 | 0.04 | 0.10 | 0.02 | 0.03 | 3, Breakout Ring | | 0.60 | 0.80 | 1.00 | 2.00 | 3.55 | 5.00 | 4,Chenck Valve | 0.70 | 1.20 | 1.40 | 2.00 | 5.00 | 13.50 | 18.00 | 5, Spring | 0.10 | 0.10 | 0.30 | 0.50 | 0.80 | 0.35 | 0.45 | 6, Air Distributor | 3.50 | 6.00 | 10.50 | 16.00 | 35.00 | 58.90 | 79.50 | 7 ,Internal Cylinder | 4.20 | 6.50 | 12.50 | 25.00 | 30.00 | 101.60 | 137.00 | 8, Piston | 23.00 | 42.50 | 77.00 | 113.00 | 190.00 | 517.00 | 698.00 | 9, External Cylinder | 31.50 | 60.00 | 110.00 | 170.00 | 316.00 | 952.00 | 1285.00 | 10, Guided Sleeve | 6.50 | 6.30 | 4.50 | 23.00 | 38.00 | 98.00 | 132.00 | 11, O Ring Of Stop Ring | 0.01 | 0.01 | 0.02 | 0.03 | 0.05 | 0.02 | 0.02 | 12, Stop Ring | 0.60 | 1.40 | 1.90 | 4.00 | 6.00 | 14.25 | 19.50 | 13, Breakout Ring | 0.20 | 0.60 | 0.80 | 1.00 | 2.00 | 3.55 | 5.00 | 14, Drive Chuck | 5.00 | 12.00 | 21.00 | 34.00 | 64.00 | 162.00 | 219.00 | 15, Retainer | 3.50 | 6.50 | 9.00 | 30.00 | 42.00 | 50.00 | 67.50 | 16, Drill Bit | 27.00 | 37.00 | 68.00 | 185.00 | 240.00 | 528.00 | 1328.00 | - - - -

Basic Company Information

Hunan New Diamond Construction Machinery Co., Ltd.

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