Hardrock ST350 truck mounted service rig is mobile platform mounted with high quality oil and gas repairing equipment.
ST350 work-over rig has the lifting load capacity 900KN and mast length 31.7m. It is most popular service rig for medium well.
It is most compact design among all the work-over rig, ST350 can be mounted in 6×4 truck chassis and Cat C11 engine to get the best driving and operation flexibility.
8×4 and 8×8 chassis with different brand engine like Cummins, Weicha are available as options.
Hardrock ST350 service rig cover most of application for medium size oil and gas well work-over activity.
- Specification
Main Spec. Value Model ST350 Nominal minor repair depth (27/8″EUE tubing) m 4000 Nominal heavy repair depth (27/8″ Drill Pipe) m 3200 Max. hook load Kn 900 Rated hook load Kn 600 Engine model C11 Engine power HP 385 Hydraulic transmission case model Customized Transmission type of hydraulic workover rig Hydraulic + Mechanical Qty. of traveling system ropes 4×3 Mast m 31.7 Main rope diameter mm 26 Single line pull force T Hook speed m/s 1.4 Approach / departure angle 23°/16° Sand Winch Rope mm 16/22 Single line pull force T 13.5/16 Min. ground clearance mm 311 Max. Gradeability of truck mounted workover unit 0.26 Min. turning diameter m 28 Hook block model YG90 Swivel model TC90 Overall dimension m 16.7 × 2.8 × 4.1 Chassis drive form 6 x 4/8 x 4 Main unit mass kg 44000
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