UNIDRIVE 500 Roof Welding Machine


Includes storage box and is in stock and ready to ship!

The Varimat V2 does not come with a cord, please click ‘here’ to purchase.

UNIDRIVE 500 Roof Welding Machine

The UNIDRIVE 500 Roof Welding Machine by Leister combines both manual and automatic welding into a compact and light welding device. Due to it’s light weight (only 9.9lbs) and overlap technology, this device is ideal for welding TPO and PVC membranes on small roofs, parapets, skylights and small terraces. With the dual drive (reverse of forward) and rotating nozzle, this device truly shows it’s worth in tight spaces. The two handles are ergonomically designed to generate optimum pressure for all basic welds and can perform up to three times faster than hand-welding.  The UNIDRIVE 500 also allows simple user guidance with it’s simple-to-use display that allows users to monitor parameters and maintain full control during welding.


  • Ergonomic handle that insures constant pressure
  • Easy to use display and controls for maintaining parameters
  • Up to 3 times faster than manual welding
  • Reversable drive for dual direction welding
  • Lightweight and compact at 4.5 kg (9.9 lbs)

Technical Data

  • Leister Part# 163.147
  • Voltage – 120 V
  • Power – 1800 W
  • Speed – 0.7 – 4.5 meters (2.3 – 14.8 ft) per minute
  • Temperature – 100 – 580 °C (212 – 1,040°F)
  • Welding Nozzle Seam Width – 40 mm (1-9/16 in)
  • Brushless Blower Motor
  • Reversable Drive
  • Weight (unpackaged) -4.5 kg (9.9 lbs)
  • Welding Materials – TPO and PVC
  • Plug – US, 2 poles, 15A, polarized
  • Power Cable Length – 3.0 m (3’3″) – If you would like to purchase a 100′ cord, please click ‘here’
  • Noise Emission Level – 70 dB (a)
  • Protection Class – I
  • CE Approved


Product Data Sheet

Operating Instructions

The UNIDRIVE 500 comes with a 3 m (3’3″) cord and plug. If you need a 100′ cord, please click ‘here’.

This product is in-stock and ready to ship.  If you would like to see other Leister products we stock, please click ‘here’.

If you do not see what you are looking for or if you need different voltage options, please contact us at 1 (800) 267-2308 or email us at internetsales@crssupply.com.

Additional information


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