JINTAI SD20C Hydraulic Rotary Drilling Rig
Overview
| Category | Bored Piles |
| Mast Structure | Parallelogram Mast Type |
| Max Torgue | 200 kNm |
| Max Diameter | 2,000 mm |
| Max Depth | 60 m |
| Weight | 66 ton |
Description
The SD20C is a self erecting, 75 ton drilling rig particularly suitable for drilling great diameters using the kelly bar system and with casing tubes directly with the rotary.
Technical Specification
Rotary
| Torque | 200 kNm | 147,512 ft. lbs |
| Crowd Cylinder Push – Pull Force | 200 – 200 kN | 44,962 – 44,962 lbf |
| Crowd Cylinder Stroke | 5000 mm | 16 ft |
| Crowd Winch Push – Pull Force | 200 – 200 kN | 44962 – 44962 lbf |
| Crowd Winch Stroke | 10000 mm | 33 ft |
| Maximum Speed of Rotation | 30 rpm | 30 rpm |
Winch System
| Main Winch – Line Pull | 200 kN | 44,962 lbf |
| Main Winch – Rope Diameter | 26 mm | 1.02 in |
| Auxiliary Winch – Line Pull | 75 kN | 16,861 lbf |
| Auxiliary Winch – Rope Diameter | 18 mm | 0.71 in |
Engine
| Brand | CUMMINS | |
| Model | C8.3 | |
| Engine Output | 196 kW @ 1,900 rpm | 263 hp @ 1,900 rpm |
Hydraulic System
| Hydraulic Pressure | 330 bar | 4,786 psi |
Expandable Crawlers
| Length | 5,400 mm | 18 ft |
| Width | 3150/4300 mm | 10.33/14.10 ft |
| Shoe Width | 700 mm | 2.3 ft |
Weight & Height
| Mast Height | 21.57 m | 71 ft |
| Self Weight (Without drilling tools) | 57.5 ton | 126,766 lbs |
| Operating Weight | 66 ton | 145,505 lbs |