Casing oscillator use heavy duty double wall casing OD1500MM WITH forge joint used on bauer-bg36 rotary drill rig for drill shaft pile foundation work

1500mm double wall casing with bauer-bg screw connection  forge joint wall thickness 50mm used on bauer-bg28 drill rig for bored pile foundation work

1500/1400mm double wall casing with bauer-bg screw joint used on bauer-bg24 rotary drill rig for secant pile foundation work

1500mm forge joint double wall casing pipe with bauer-bg screw connection used on bauer-bg26 rotary drill rig for cased bored pile foundation work

1500mm forge joint double wall casing pipe with bauer-bg screw connection used on bauer-bg33 rotary drill rig for cased bored pile foundation work

1500mm forge joint double wall casing pipe with bauer-bg screw connection used on bauer-bg36 rotary drill rig for cased bored pile foundation work

1500mm forge joint double wall casing pipe with bauer-bg screw connection used on bauer-bg40 rotary drill rig for cased bored pile foundation work

1500mm forge joint double wall casing pipe with bauer-bg screw connection used on bauer-bg42 rotary drill rig for cased bored pile foundation work

1500mm forge joint double wall casing pipe with bauer-bg screw connection used on bauer-bg20 rotary drill rig for cased bored pile foundation work

DOUBLE WALL casings are used for stabilising boreholes in unstable soil formations. They are designed specifically for the transmission of high torques and crowd forces generated by BG rotary drilling rigs and TIANJIN HUACHANG XINGYE TECHNOLOGY CO LTD casing oscillators. Casings are produced in double-walled construction as standard. This gives casings additional rigidity and strength and provides a continuous flush drill string  As the amount of torque to be transmitted as well as the required casing depths continue to increase further and further, accompanied by increased wear, TIANJIN HUACHANG XINGYE TECHNOLGY CO LTD offers a reinforced version as an alternative to standard casings. It differs by comprising a stronger inner tube with a wall thickness of 12 mm (OD 620 - 1300 mm) and 16 mm (OD 1500 - 1800 mm)
Technical Data - double-walled casings
Casing shoes can be fitted with WS tooth holders (WS 39) or weld-on teeth type BR or BH (other types of teeth are available on request)
Casing drive adapter with manually actuated with eccentric lock
Available range of diameters 620 to 2,500 mm
Featurs
 
The joints are made of 25CrMo forgings, which are wear-resistant and not suitable for deformation. The pipe body is Q345B, bolt 42CrMo material, high strength, high torque resistance. The joint bolts are double-row holes. Longer and thicker joints, suitable for high torque drilling

Product parameters

ianjin huachang xingye technology co ltd Double wall сasing: diameter 600-2000mm with walls thickness 40-50mm.
Length 1m,2m,3m,4m,5m,6m Designed for drilling with drived by casing oscillator or a rig rotary system. Connections   conical thread screws and centring keys.
double wall casing pipe/Single wall casing
Our double wall casing have two type joint , one is forge joint:materials is 25CrMO,another type is roll joint
Casing joints and pipes for pile protection of collapsing. Casing joints are composed of one male half joint and one female joint welded at each end of casing pipe for easy pipe connection. Joints coupling supplied with conical screw type for single and double wall casing.cardan joint for rotary drilling

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