Equipment Selection: Casing Extractor vs.casing Oscillator vs. Vibro Hammer

Hydraulic Casing Extractor: Best for static pulling of temporary casings during concreting. Highly effective when skin friction exceeds the extraction torque/pull capacity of the rotary drilling rig. Casing Oscillator (or Rotator): Provides high twisting (torsional) torque alongside vertical push/pull forces. Needed if casings must be driven deep through hard, obstructive strata or secant pile walls. Vibratory Hammer: Faster for installing/extracting thin casing in loose sands, but risky when pouring fresh concrete or in tight urban spaces due to ground vibration. 1500mm hydraulic casing extractor with electricity motor power pack used for secant pile foundation work 1500mm hydraulic casing puller used for pull out double wall casing ,single wall casing in secant pile bored pile work Extracting 1500mm double wall casing with 1500mm hydraulic casing extractor A 1500mm hydraulic casing extractor (casing puller) is heavy geotechnical foundation equipment designed to clamp onto and extract temporary steel casings up to 1500 mm in diameter from bored piles, secant pile walls, and deep foundations. It allows service contractors to free up rotary drilling rigs or crawler cranes from performing high-load extraction operations, preventing mast damage and reducing fuel/machine wear during concreting. Typical Technical Specifications (1500mm Class) Parameter Standard Range / Typical Spec Max Outer Casing Dia. (with reduction inserts for ) Max Extraction / Lifting Force () () Max Clamping Force () () Jacking Cylinder Stroke per cycle Max Working Pressure () () Total Base Weight (extractor head) NAME unit REMARK Cylinder lift number PC 4 Cylinder stroke length mm 1000 Cylinder clamp number pc 1 MAX CLAMP FORCE t 200 BELOW 30MPa MAX CASING SIZE mm 1500 MAX LIFT FORCE t 500 30MPa WEIGHT kg 8000 SizeL*W*H) m 3.7x2.2x2.1 Transport size 2 specification of hydraulic power pack Tianjin huachang xingye technology co ltd Model Diesel engine power remark engine 4BTAA3.9-C100 Engine power kW 75 Big pump discharge capacity l/min 150 Big pump discharge capacity l/min L/min 45 Operation pressure :MPa 25 Oil tank capacity L 900 Hydraulic oil grade YB-N46 Over size (L×W×H)(mm) 3000×2000×1700 WEIGHT (kg) 2000 NOT INCLUDE OIL Key Operational Features Multi-Cylinder Jacking System: Uses 2 to 4 heavy-duty vertical hydraulic cylinders pushing against ground bearing plates to break casing-skin friction. Radial Clamping Mechanism: Powered wedge or segmented jaw system to grip smooth or jointed double-wall casings without crushing the casing profile. Power Source Compatibility: Driven via a dedicated standalone diesel/electric hydraulic power pack or directly tied into the auxiliary hydraulic lines of a base rig/crane. Reduction Inserts (Adapter Collars): Interchangeable clamping jaw inserts allowing the same 1500mm frame to handle smaller standard sizes