Extrusion Welders

Sigma 2 Extrusion Welder

The Sigma2  is a masterpiece of modern welding technology. Compact and ergonomically designed for plastic fabrication or geomembrane welding applications, the Sigma 2 is entirely self-sufficient and requires no remote air or gas supply. 

The multi-functional display includes maintenance notifications, time meters, and pre-set temperature/air flow programs for ease of use. It is ideal for welding on the ground from a standing position. The powerful drive system produces an output of up to 4 kg/hour, depending on material and conditions.

Key Features:

  • Suitable for welding PP, PVDF, PE and other thermoplastics
  • Single channel extrudate set-point temperature controller 
  • Self contained – does not requiring external air or gas
  • Adjustable hot air temperature
  • Lockable drive motor
  • Patented, trouble-free rod intake system
  • Solid, durable construction, easy operation
  • Exchangeable PTFE welding shoes can be easily machined to determine weld size and configuration
  • Rotatable welding head assembly standard
  • Multi-position handle
  • Optional heavy-duty shipping/transport case with rollers


Technical Data

  • Power Supply: 110V / 50-60hz
  • Power Consumption: 3390 W max.
  • Maximum Output: PE – approx.1,9 kg/h  (4.2. lbs/hr), PP – approx 1.8 kg/h (4.0 lbs/hr)
  • Weight: Approx. 5.8 kg (13 lbs)
  • Dimensions:  410 x 260 x 70mm (16” x 10” x  3” - w/o handle)
  • Rod Size:  PP or PVDF: 3 or 4mm (1/8", 5/32"); PE: 3, 4, 5mm (1/8", 5/32", 3/16")