Changsha Chaojingang machinery manufacturing CO., Ltd
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CRE542 Carbide RC Reverse Circulation Hammer For Drilling Equipment
R.C. Drilling, referred to as "Centre Sample Recovery"or "Dual Wall Drilling", employs a Dual Wall PIpe where the drilling medium, normally high pressure air, is passed between the outer and inner tubes down to the face of the drilling bit where it is returned up the centre tube along with the sample cut by the drill bit.
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.
| Length(without bit) | Weigth(without bit) | External diameter | Bit Shank | Hole range | Connection Tread | |
| 1191mm | 51.0kg | φ109.5mm | RE542 | φ113-φ130 | 3.5"-4" Remet 4"Metzke | |
| Working Pressure | Impact rate at 1.5Mpa | Recommended rotation speed | Air consumption | |||
| 1.7Mpa | 2.4Mpa | 3.0Mpa | ||||
| 1.5-3.5Mpa | 35HZ | 25-40r/min | 12m³/min | 18m³/min | 26m³/min | |
Features:
Changsha Chao Diamond Machinery Manufacturing Co., Ltd. is a modern high-tech enterprise specializing in research and manufacture of rock drilling machinery and pneumatic tools in China. The company has rich scientific research and production experience, using the best raw materials, advanced production technology and rigorous testing methods, to produce products with superior performance and stable and reliable quality. "Super Diamond" brand rock drilling and pneumatic series products are sold well all over the country due to their superior performance, stable and reliable quality. They have been exported in batches to more than 20 countries and regions, such as Korea, Brazil, Australia and South Africa, and are well received by users.
The company is located in Liuyang, Changsha, a beautiful fireworks city. It covers an area of 26600 square meters. Its production plant covers 22,000 square meters. It has nearly 100 employees, 26 engineers and technicians, and 8 senior engineers. There are nearly 400 sets of professional equipment for research, manufacture and testing of rock drilling machinery and pneumatic tools. The company develops and manufactures the most advanced positive and negative circulation DTH impactors; reverse circulation impactors; various positive and negative circulation DTH drills; eccentric follow-up pipe drilling tools, centerline follow-up pipe drilling tools, slider type follow-up pipe drilling tools, double follow-up pipe drilling tools for follow-up drilling in overburden and loose rock strata; various thread drills; It is widely used in earthwork engineering, mining, water well engineering and construction engineering, geothermal drilling, municipal engineering and other fields.Adhering to the spirit of excellent innovation, the company provides high-quality products, advanced technology, comprehensive service, the pursuit of customer-centered, quality-oriented, to provide overall rock drilling solutions as the development goal, sincerely hope to work with old and new friends to win-win and create a better tomorrow.