Self-centring 3-jaw chuck

CORMAK Uchwyt samocentrujący do rur WP400

The CORMAK WP400 self-centring 3-jaw pipe chuck is a high-quality accessory designed for use with welding positioners and welding rotators. It enables quick and stable clamping of cylindrical or hexagonal workpieces with diameters ranging from 120 to 380 mm. Thanks to its robust design and high clamping force, the chuck ensures reliability and precision essential for automatic and semi-automatic circumferential welding processes.
Main advantages of the WP400 chuck

Wide clamping range – allows clamping of workpieces with diameters from 120 to 380 mm, ensuring versatility for both series and single-piece production.
Self-centring 3-jaw mechanism – guarantees fast and accurate alignment of the workpiece along the rotator axis.
High clamping force – 350 kg – enables safe clamping of heavy components during dynamic rotation.
Compatible with welding positioners – perfectly matches welding rotators and other welding support equipment, allowing full utilisation of their capabilities.
Stable and durable design – engineered for long-term use in demanding industrial conditions.

Design and technology
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The WP400 model features a precise, mechanically synchronised clamping system that ensures the workpiece is always perfectly centred on the rotational axis. The three independently moving jaws are made of hardened steel, resistant to wear and deformation. A large through-hole of ⌀170 mm allows for the passage of tubular workpieces, while the load capacity of 240 kg provides safe handling of heavy components.
Precision and performance

The WP400 chuck minimises setup time, increasing overall workstation efficiency. The self-centring system eliminates positioning errors and improves the quality of circumferential welds. Its rigid construction ensures stability during automatic or semi-automatic welding cycles, even under high loads.
Applications

The WP400 chuck is designed for industrial facilities using welding positioners, welding rotators, and other devices supporting welding processes. It is ideal for clamping pipes, sleeves, flanges, and other components requiring rotational welding. With its high clamping force and load capacity, the WP400 is suitable for both light and heavy-duty production environments.
Technical parameters
Model WP-400
Max clamping force 350 kg
Max load capacity 240 kg
Through-hole diameter ⌀ 170 mm
Clamping range ⌀ 120–380 mm