650HP Workover Rig

650HP mobile service rigs are truck-mounted drilling equipment which are researched and developed by ZYT Petroleum Equipment Co., Ltd independently. Max static load of mobile drilling rigs is 1470KN. With the adoption of numbers of patented technology, the power system adopts CAT engine C18+ Allison M6620AR gearbox. The chassis adopts 12 x 8 drive and the weight of whole rig is distributed rationally. The mobile service rigs are widely used in onshore oil fields of deep well overhaul, workover, oil test, salvage and pump inspection operation.


1. The 650HP mobile workover rigs adopt 12×8 self-propelled chassis.
2. Drawworks' main brake of mobile service rigs adopts hydraulic disc brake system and its auxiliary brake adopts Eaton pneumatic water-cooled disc brake.
3. Finite element analysis and design is adopted on mast, frame and drawworks to reduce the weight of the rig.
4. It adopts 5+5R anti-reverse rotary table transmission device.
5. Parallelogram substructure of mobile service rigs has stable structure and is easy to install.


Parameters of 650HP Workover Rig

Drill depth (4 1/2” DP) m 2000
Max fast-line pull kN 210
Max load kN 1470
Drill line Diameter mm (in)/effective number n Φ29 (1 1/8") /8
Mast hoisting speed m/s 1.4
Traveling system type 4×5
Engine CAT C18
Transmission ALLISION M6620AR
Clearance height of mast m 35m