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Roschen Global
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5" RC hammer PR40
ROSCHEN
RC-50-PR40
Product Description
RC hammer 5inch PR40
Product description:
Reverse circulation hammers are specifically designed for all kinds of exploration drilling, like deep hole and in-pit grade control applications. when you are exploring potential sites or working an existing mine, RC hammer will guarantee high performance, exceptional reliability and dependable support.
When breaking a Hammer down, avoid placing breakout tools in the mid-section of the cylinder (barrel). Recommended breakout points are 130mm from each end of the cylinder. Wrap around chain type breakouts are recommended (see diagram). When holding bits for breakout, use a secure plate or pot to grab the bit head, but never on the gauge row buttons.
RC hammers and bits are used in hole drilling in mines, hydrology and water well, geothermal well, geothermal air conditioning well, geologic exploration, gravel stratum, etc. Especial suitable for complicated formation (Formation loose, difficult to drilling and unstable of hole wall), exhausting for deep hole, environment protection.
We adjust button number, button configuration, button diameter to get ultra-performance and reduce the drilling cost for you according to your rock formation situation.
ROSCHEN RC bits sizes.
- RC bits 86mm -102mm for 3" RC hammer RE531
- RC bits 114mm -127mm for 4" RC hammer RE004
- RC bits 121mm -133mm for 4.5" RC hammer RE542/RE543
- RC bits 124mm - 138mm for 5" RC hammer RE545/PR40
- RC bits 133mm - 146mm para 5.5" RC hammer PR52/RE547/PR54/MX5456
Lenght(less bit) | Weight(Less bit) | External Dia. | Bit Shank | Hole Range | Connection Thread | |
1362 mm | 80.5 kgs | 120.5 mm | PR40 | 124-142mm | 3.5" - 4.5" Remet 3.5" - 4.5" Metzke | |
Working Pressure | Impact Rate at 2.4MPa | Recommended Rotation Speed | Air Consumption | |||
1.7 MPa | 2.4 MPa | 3.0 MPa | ||||
1.5-3.5 MPa | 35 Hz | 25-40r/min. | 16m3/min | 22m3/min | 28m3/min | |
Product Features:
1.The reverse circulation DTH hammer provides large impact of torque and high efficiency of energy transfer while ensuring saving energy consumption.
2.It delivers high drilling efficiency due to strong capability of removing rock dust and flakes.
3.Compressed air and reverse-flow fluid medium are all transported in the sealed double-wall drilling tool, thus avoiding direct ccontact with the borehole wall and maintaining stability of the wall. The reverse circulation hammer shows unique effect to complex and leakage formations.
4.Rock sample will be carried by the fluid medium and directly go back to the ground through the center hole of the drilling tool. It will not touch the wall of borehole, ensuring high quality of ore sample with no pollution.
5.Rock dust and flakes will be cleaned and discharged to a specific position through the center hole for central disposal, which ensured a prevention of dust and pollution, leads to improve working enviroment and enhance a longer service life of drilling equipment and attendance rate.
ROSCHEN Reverse Circulation line of hammers are used in a wide range of drilling rigs in various geological formations. They are preferred by on-site geologists for their high percentage of uncontaminated sampling; their fast penetration rates; and their trouble-free, low-cost, and long life performance. The pride of workmanship and outstanding engineering make these hammers a superior value. Excellent dependability, service, and support.
