Casing Pulling Machine

About Casing Pulling Machine

The Casing Extractor is a professional steel casing pulling equipment for deep foundation piling engineering. It is mainly operated in cooperation with crawler cranes, rotary drilling rigs and full rotary casing rigs, serving as the core supporting equipment for efficient, loss-free and safe recovery of various steel casings. Adopting a large-tonnage hydraulic drive structure, the equipment relies on super-large clamping force and vertical jacking tension to perform powerful pulling operations on deeply buried, locked, silt-wrapped and pebble-jammed steel casings. It features a robust frame, stable clamping, sufficient pulling force and simple operation.

he casing extractor is a special core equipment for steel casing recovery in the later stage of piling construction. Matched with crawler cranes, rotary drilling rigs and full rotary casing rigs, it specializes in casing pulling work under various complex working conditions. It is essential for improving casing reuse rate and saving engineering costs:

 Core Functions: Adopting a multi-cylinder synchronous hydraulic jacking structure, the equipment provides super-large pulling tension. The high-strength clamping mechanism firmly locks the steel casing without slipping, wall clamping or deformation. It supports powerful jacking and extraction of deeply buried, silt-wrapped, pebble-jammed and long-term pressure-locked casings to achieve complete and damage-free casing removal. It effectively avoids casing tearing, deformation, fracture and residual problems caused by traditional violent pulling methods, greatly improving the recovery rate and cycle service life of steel casings, and ensuring efficient, safe and neat completion of piling projects.

 Application Scenarios: Steel casing recovery for deep foundation piles of high-speed railways, subways, viaducts and high-rise buildings; extraction of deeply buried casings in complex strata such as silt, quicksand, pebbles and karst formations; final casing recovery for secant piles, cofferdams and deep foundation pit support; old pile reconstruction, piling renovation and underground residual casing removal and other foundation projects.

 Product Advantages: Equipped with sufficient hydraulic power and strong jacking tension, it is highly adaptable to high-resistance casing jamming conditions. Multi-point uniform clamping ensures balanced casing stress without clamping damage, deformation or cracking. The integral structure is robust and pressure-resistant, supporting long-term high-frequency continuous operation. It features simple operation, quick assembly and disassembly, flexible transportation and low maintenance cost. It significantly improves casing reuse rate, effectively reduces project material costs and construction periods, and delivers extremely high comprehensive cost performance.

 Compatible Equipment: Perfectly matched with crawler cranes, rotary drilling rigs, full rotary casing rigs and casing oscillators. Compatible with full-spec single-row threaded, double-row threaded and straight-seam steel casings, suitable for supporting finishing operations of various piling hole-forming equipment.