JINTAI SD28 Hydraulic Rotary Drilling Rig

Overview

Category Bored Piles
Mast Structure Parallelogram Mast Type
Max Torgue 286 kNm
Max Diameter 2,400 mm
Max Depth 70 m
Weight 89 ton

Description

The SD28 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 286 kNm 210,943   ft. lbs
Crowd Cylinder Push – Pull Force 250 – 250 kN 56,202 – 56,202 lbf
Crowd Cylinder Stroke 5,700 mm 19 ft
Crowd Winch Push – Pull Force 250 – 250 kN 56,202 – 56,202 lbf
Crowd Winch Stroke 10,000 mm 33 ft
Maximum Speed of Rotation 30 rpm 30 rpm

Winch System

Main Winch – Line Pull 250 kN 56,202 lbf
Main Winch – Rope Diameter 30 mm 1.18 in
Auxiliary Winch – Line Pull 75 kN 16,861 lbf
Auxiliary Winch – Rope Diameter 18 mm 0.71 in

Engine

Brand CUMMINS
Model QSM11-C
Engine Output 263 kW @ 1,900 rpm 353 hp @ 1,900 rpm

Hydraulic System

Hydraulic Pressure 330 bar 4,786 psi

Expandable Crawlers

Length 5680 mm 19 ft
Width 3300/4400 mm 10.82/14.43 ft
Shoe Width 800 mm 2.625 ft

Weight & Height

Mast Height 23.5 m 77 ft
Self Weight (Without drilling tools) 74 ton 163,142 lbs
Operating Weight 89 ton 196,211 lbs