-150 crawler deep foundation pit tracing drilling rig is a drilling rig developed for anchoring, jet grouting and dewatering of domestic subways, high-rise buildings, airports, ground source heat pumps and other deep foundation pits.

Main features:

1. The speed can reach 170 revolutions per minute, which is 20% higher than that of -135, and the efficiency of using twist drills and soil layers is more considerable.

2. Energy saving, improving work efficiency without increasing power.

3. While the speed is increased, the torque is increased by 10 compared with -135, and the torque is 7500NM.

4. A new hydraulic system is adopted, with a simpler structure, more reasonable layout and more humanized operation.

5. The construction efficiency is improved by about 20% compared with -135 drilling rig.

6. The automatic rotation function of the platform is added, which greatly reduces the labor intensity of workers during construction and improves construction efficiency.

Common construction processes:

1. Three-wing drill bit drilling, mud slag removal. Suitable for high-speed drilling in soil layers and other strata.
2. Drilling with air down-the-hole hammer and air slag removal. Applicable to rock and broken layer construction.
3. Drilling with hydraulic hammer at the bottom of the hole and mud slag removal. Applicable to construction in broken layer, sand and gravel layer and other strata with high water content.
4. Casing drilling.
5. Drill rod and casing composite drilling.
6. Single, double, triple slurry, fixed slurry, swing slurry and other slurry and enlarged head tracing processes.