Thanks to a carbide bit attached to the tip and the revolving all casing method, it is possible to prevent the collapse of the ground, and with high precision verticality as a weapon we can carry out large diameter, large depth construction, and low vibration and low noise construction.
Instead of conventional hammer grabs, which cause the adverse effects of noise and vibration are significant, low-vibration and low-noise hydraulic power transmission method using hammer grabs are used.
It is a protrusion-type openable hammerer grab that can be used for large diameter cast-in-place piles of 1000 mm to 2000 mm by using high strength special abrasion resistant mesh (1200 kg/cm2) as the main member.
It is a hammer grab excavation discharge. Suitable for cast-in-place piling method (all casing construction).
Although it is a hydraulic hammer grab, it does not require hydraulic hoses and hydraulic units. The body can be operated only with wires, and there is no concern of oil leaks.
When a bottom-enlarged drilling machine is used in the full circle slewing enlarged bottom pile method, it is applicable to any revolving tubing machine, and the bottom diameter of the shaft portion diameter of +200 mm to +1000 mm is defined as the scope of enlarged bottom pile construction.
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