1000mm Casing Puller Used for Pull out Double Wall Casing in Secant Pile
Information
1000mm casing puller used for pull out double wall casing in secant pile1000mm hydraulic casing puller with diesel engine power pack for pull out secant pile double wall casing with 880mm reduction insert1000mm casing puller hydraulic type with diesel engine power pack for pull out double wall casing during cased bored pile foundation work1000mm diesel engine power pack hydraulic casing puller used for extract casing pile in secant pile construction
1000mm hydraulic casing puller with electricity motor power pack for pull out secant pile double wall casing with 880mm reduction insert
1000mm hydraulic casing puller with diesel engine power pack for pull out secant pile double wall casing with 880mm reduction insert
- B1000 casing puller
| 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¡ÁW¡ÁH) | m | 2.85x1.7x1.6 | Transport size |
| 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¡ÁW¡ÁH)(mm) | 3000¡Á2000¡Á1700 | |
| WEIGHT (kg) | 2000 |
1000mm hydraulic casing puller (commonly referred to in deep foundation engineering as a casing extractor or retaining clamp) is a specialized heavy-duty geotechnical attachment designed to extract temporary steel casing pipes with an outer diameter (OD) of 1000mm from bored piles or secant pile walls.When skin friction and surrounding ground pressure make it impossible for a standard rotary drilling rig's winch to reclaim the casing, these standalone hydraulic systems provide the intense vertical breakout force required.Typical Technical Specifications
While exact metrics vary by manufacturer , a standard heavy-duty 1000mm casing puller typically operates within the following parameters:
| Parameter | Standard Range (1000mm Class) |
| Target Casing Diameter | 1000 mm (often accepts reduction inserts for 880mm or smaller) |
| Max Lifting / Pulling Force | 400 - 580 metric tons |
| Max Clamping Force | 160 - 200 metric tons |
| Lifting Stroke | 500 - 800 mm per cycle |
| System Operating Pressure | 25 - 32 MPa (250 - 320 bar) |
| Equipment Weight (Approx.) | 6.0 - 8.5 metric tons |
Hydraulic Clamping Ring: Features curved jaw segments equipped with hardened steel teeth. These jaws grip the smooth outer wall of the 1000mm casing evenly to prevent slippage or pipe deformation under immense pressure.Lifting Cylinders (Jacks): Typically a set of 2 or 4 high-pressure vertical cylinders that push against a rigid base frame deployed directly on the ground or on crane mats.
Power Source: Can be powered by an auxiliary hydraulic loop directly from a large rotary drilling rig or operated via an independent, remote-controlled diesel/electric hydraulic power pack (typically 45-60 kW).Operational Advantages 1. High Versatility via Reduction Inserts A 1000mm base unit is highly adaptable. By swapping out internal bolt-on wedge inserts, the same machine can clamp and pull smaller casing profiles (such as 880mm, 750mm, or 620mm), maximizing fleet utilization.2. Protecting the Primary Rig Attempting to force stuck casings out using only a drilling rig's mast or main winch introduces severe structural fatigue and risk of tipping. A casing extractor transfers all structural loads safely to the ground surface.3. Continuous Reciprocating Action The system operates in a cycle: Clamp onto the casing Extend the lifting cylinders to pull the casing upward by 500-800mm. Release the clamp. Retract the cylinders downward to reset the stroke and repeat.
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