Butt welding machine SWT-V450/280H

manuallarge-diameterfor pipes

Overview
The SWT-V series is a hydraulic butt fusion welding machine line for large-diameter thermoplastic pipes (HDPE, PE, PP, PVDF). Designed for mining, potable water, wastewater, industrial pipelines and other heavy-duty installations, the machines deliver stable welding pressure, precise temperature control and serviceable hydraulic power units.

Key features

• Circuit breaker combined with residual current protection for electrical safety.
• STUCCHI quick couplings for secure hydraulic connections.
• DuPont Teflon-coated heating plate to minimize sticking and extend plate life; temperature uniformity typically ±5°C.
• Accumulator to maintain stable welding pressure throughout the procedure.
• Fanless, high-power motor and cartridge-valve hydraulic station capable of operation up to ~120 bar.
• Compact, rigid frame to reduce deformation and prevent oil leaks under heavy use.

Applications

• Installation and repair of HDPE, PE, PP and PVDF pipelines in potable water networks, wastewater and drainage systems.
• Mining pipelines including slurry and gas drainage, industrial pipeline networks and geothermal heating/cooling systems.
• Agricultural irrigation systems and municipal engineering requiring durable thermoplastic joints.

Accessories & options

• Data logger (e.g. PEWELDBANK) for weld parameter recording and traceability.
• Reducer inserts for a range of diameters, end supports, roller supports, cranes and handling fixtures.
• Packaging and shipping options for single units or bulk deliveries.

Technical specifications

• Models: SWT-V450/280H, SWT-V500/280H, SWT-V630/315H, SWT-V800/500H.
• Welding range OD (mm): 280–450 (SWT-V450/280H); 280–500 (SWT-V500/280H); 315–630 (SWT-V630/315H); 500–800 (SWT-V800/500H).
• Reducer inserts (examples): SWT-V450/280H — 280, 315, 355, 400; SWT-V500/280H — 280, 315, 355, 400, 450; SWT-V630/315H — 315, 355, 400, 450, 500, 560; SWT-V800/500H — 500, 560, 630, 710.
• Power supply: 380 V 50 Hz 3P (all models).
• Rated power (kW): 8.38 (SWT-V450/280H); 10.3 (SWT-V500/280H); 12.3 (SWT-V630/315H); 18.2 (SWT-V800/500H).
• Piston area (cm²): 22.37; 23.06; 23.06; 44 (corresponding to models above).
• Machine weight (NW/GW kg): 405 / 486; 430 / 520; 618 / 729; 1300 / 1420 (by model).
• Hydraulic station: cartridge valves, quick-disconnect service frame, up to ~120 bar capability.