SAMBO's RCD machines are used for the vertical excavation work by means of the installed power swivel

with rotary bits based on hydraulic system.

It brings the rapid enhancement of work efficiency according to speedy excavating capacity without

noise and vibration and isn't influenced by the soil condition.

- Special treatment

  * Normalizing the whole master leader and whole slide box collar after welding finished in order to

     relieve the internal welding stress.

  * Machining the holes on the Footing of the master leader and the base frame by boring machining tool.

  * Machining the holes on the slide box collar by boring machining tool after normalizing.