What Is Hydraulic Casing Extractor? 1000mm Hydraulic Casing Extractor

What is hydraulic casing extractor? 1000mm hydraulic casing extractor 1000mm hydraulic casing extractor with diesel engine power pack used for pull out double wall casing in secant pile work 1000mm casing extractor hydraulic type with diesel engine power pack for pull out double wall casing during cased bored pile foundation work 1000mm diesel engine power pack hydraulic casing extractor used for extract casing pile in secant pile construction 1000mm secant pile casing remove extractor with diesel engine power pack used for secant pile foundation work Tianjin huachang xingye technology co ltd can produce 400-3000mm casing extractor , can add different size reduction insert suit to different casing pipe , our hydraulic casing extractor can use different hydraulic power pack Diesel engine power and electricity motor power pack. They are hydraulic clamping machines to pull out casing pile pipe or similar pipe. Pull out casing pile pipe or similar pipe. They may be coupled to the base pile machine by means of telescopic boom or they can work alone with its own hydraulic power pack B1000 extractor name unit parameter remark Lift cylinder quantity pc 4 Max stroke of cylinder mm 800 Clamp cylinder quantity pc 1 Max clamp force t 120 30MPa Max casing diameter mm 1062 Max lift force t 240 30MPa Weight kg 4200 Oversize (L×W×H) m 2.85x1.7x1.6 Transport size 2,HYDRAULIC POWER STATION MODEL specification note POWER 4BTAA3.9-C100 Engine power kW 75 big pump discharge l/min 150 Small pump discharge L/min 45 Working pressure:MPa 25 Hydraulic oil capacity L 900 Hydraulic oil number YB-N46 oversize(l×W×H)(mm) 3000×2000×1700 WEIGHT (kg) 2000 A 1000mm hydraulic casing extractor (also referred to as a casing puller or pipe extractor) is a piece of heavy-duty pile equipment used to extract temporary steel casings ,double wall casing , single wall casing from the ground during deep foundation works, such as bored piling, secant pile walls, and diaphragm wall installations.Because withdrawing 1000mm temporary casings can exceed the safe pulling capacity of standard rotary drilling rigs-especially after concrete placement or when bound by high skin friction-these standalone hydraulic units provide the concentrated upward force required.Here is a breakdown of typical technical specifications, features, and operational setups for a standard 1000mm class unit.Typical Technical Specifications While exact metrics vary , a standard 1000mm standalone hydraulic casing extractor generally aligns with the following parameters: Parameter Standard Range (1000mm Class) Maximum Casing Diameter 1000\text{ mm}$ (Can be reduced using modular inserts/shims) Max Lifting Force (Pull Force) $3,500\text{ to } 5,800\text{ kN}$ (Approx. $350\text{ to } 580\text{ tons}$) Max Clamping Force $1,100\text{ to } 1,800\text{ kN}$ (Approx. $110\text{ to } 180\text{ tons}$) Lifting Stroke $800\text{ to } 1,000\text{ mm}$ per cycle System Operating Pressure $30\text{ to } 32\text{ MPa}$ ($300\text{ to } 320\text{ bar}$) Total Equipment Weight $8.5\text{ to } 10.8\text{ metric tons}$ Cylinder Configuration Typically 2-column or 4-column lifting jacks Key Operational Features1. Reduction Inserts (Versatility)A dedicated 1000mm extractor is rarely limited to a single size. Manufacturers provide modular reduction inserts (shims) that bolt into the main clamping collar. This allows a 1000mm machine to securely grip smaller casing diameters common to secant wall layouts, such as:880 mm 610 mm 2. Synchronization SystemsBecause these machines deploy multiple hydraulic lifting jacks (often 4 cylinders), maintaining a perfectly level ascent is critical. High-end units utilize integrated hydraulic synchronization valves to prevent uneven cylinder extension, which can cause the casing to bind or cross-thread against the ground formation. 3. Power Pack Dependencies A 1000mm extractor requires a dedicated hydraulic power source. Depending on job site constraints, they are paired with: Diesel Power Packs: Best for isolated or heavy civil sites where electrical infrastructure is missing. Electric Motor Power Packs: Typically 45kW stations, preferred for urban job sites with strict noise and emission regulations. Rig Auxiliary Hydraulics: In some configurations, the system can be plumbed directly into the auxiliary lines of a large rotary drilling rig or crawler crane. Control Interfaces Modern configurations emphasize operator safety by shifting away from manual machine-side levers. They generally feature dual operating modes: Wireless Remote Control: Allows the ground crew to stand at a safe distance outside the line-of-fire while managing the clamping and lifting sequence.Manual Override Panels: Stationed directly on the power pack frame for backup or diagnostics. Common Field Applications Secant Pile Walls: Used to cleanly recover primary and secondary temporary casings without disturbing the freshly placed concrete of adjacent piles. Diaphragm Wall End-Pipes: Extracting structural circular joint tubes or stop-end pipes before the concrete fully cures. Hydraulic Steering Flaps: Movable guide plates on the body of the grab that push against the trench walls to dynamically correct deviation during excavation. 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