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UNIDRIVE 500 Roof Welding Machine


In stock and ready to ship!  Due to territory restrictions, this unit can only be shipped to the following states: GA, TN, FL, NC, SC, AL, MS, TX, LA, OK, KS and AR.


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

Due to territory restrictions, this product can only be shipped to the following states: Georgia, Tennessee, Florida, North Carolina, South Carolina, Alabama, Mississippi, Texas, Louisiana, Oklahoma, Kansas and Arkansas

If you do not fall into one of the states above, please contact us at 1 (800) 267-2308 or email us at

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’.

Additional information


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