The auger of KR125M CFA rig is drilled into the soil and or sand to the design depth in a single pass. Once the design depth/criteria has been achieved the auger containing the drilled material is then slowly removed as concrete or grout is pumped through the hollow stem. The concrete pressure and volume must be carefully controlled to construct a continuous pile without defects. Reinforcing steel is then lowered into the wet column of concrete.
The finished foundation element resists compressive, uplift, and lateral loads. Originally introduced to address saturated unstable ground conditions, modern CFA equipment represents a cost efficient foundation solution in most soil conditions.
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Technical specification of KR125M rotary drilling rig (CFA &rotary drilling rig) |
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CFA construction method |
Max. diameter |
700mm |
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Max. drilling depth |
15m |
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Main winch line pull |
240 kN |
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Rotary drilling construction method |
Max. Diameter |
1300 mm |
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Max. drilling depth |
37m |
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Main winch line pull |
120 kN |
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Main winch line speed |
78 m/min |
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Working parameters |
Max. torque |
125 kN.m |
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Auxiliary winch line pull |
60 kN |
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Auxiliary winch line speed |
60 m/min |
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Mast inclination(lateral) |
±3° |
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Mast inclination(forward) |
3° |
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Max. operating pressure |
34.3 MPa |
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Pilot pressure |
3.9 MPa |
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Travel speed |
2.8 km/h |
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Traction force |
204 kN |
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Operating size
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Operating height |
18200 mm(CFA) / 14800mm (rotary drilling) |
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Operating width |
2990 mm |
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Transport size
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Transport height |
3500 mm |
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Transport width |
2990 mm |
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Transport length |
13960 mm |
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Total weight |
Overall weight |
35 t |
1. Innovative drilling bucket depth measurement system can show higher accuracy than other rotary drilling rigs.
2. With the hydraulic pressure system adopted threshold power control and negative flow control the system acquired high efficiency and higher energy conservation.
3. The noise-proof cab with FOPS function is equipped with adjustable chair, air conditioner, internal and external lights and windshield wiper (with water injection). It is easy for operation with help of the console of various instruments and operation handles. It is also provided with a color LCD display with powerful function.
Tysim machinery has been relying on excellent product quality and thoughtful after-sales service, to win the trust of customers .A KR125M multi-function rotary drilling rig is exported to Laos for construction in the civil and industrial construction market in Laos.KR125M self-propelled full hydraulic long auger, realizing fast movement and efficient construction. The high-performance hydraulic system and control system developed by the company can realize the efficient construction and real-time monitoring of the drilling rig. Strictly in accordance with the European safety standard EN16228 design, to meet the dynamic and static stability requirements, to ensure construction safety. The maximum drilling depth of the long screw is 16m, the maximum drilling diameter is 800mm, and the maximum drilling depth is 37m and the maximum drilling diameter is 1300mm.