1. Good disassemble, easy for mounting, loading and transportation.
2. The power is optional from double motors or diesel.
3. Adding a rotary table clutch and brake clutch between the rotary table and gear box.
4. The chief brake is a double stips brake with a balance system. It makes the brake reliable.
5. The rotary table is with a bigger loading capacity, the static loading capacity can reach 272 tons.

Usage:
TSJ3700/445 Drilling Rig is mechanism transmission, full pneumatic central control and with a rotary table.
It is applied to drill middle depth hole for petroleum and large depth hole for water, salt and natural gas.