UNIROOF 300 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.

UNIROOF 300 Roof Welding Machine

The UNIROOF 300 Roof Welding Machine by Leister is used to weld TPO, PVC, weldable EPDM and even Bitumen material quickly and economically on medium-sized flat roofs. This automatic welder can be easily operated by one person and can weld seams up to 10 meters (33 feet) per minute. Due to its compact design, welding up to 100 mm (4 inches) to the edge and on parapet corners is a breeze!


  • Includes sturdy and convenient carrying case
  • Reliable digital display to control speed, temperature and air volume
  • Uniform seam welds due to standard nozzle
  • Low-maintenance drive motor
  • Lightweight and compact at 17 kg (37.5 lbs)
  • Easy to roll and carry due to adjustable guide wheels and carrying handle

Technical Data

  • Leister Part# 168.635
  • Voltage – 120 V
  • Frequency – 50/60 Hz
  • Power – 1800 W
  • Speed – 1.0 – 10.0 m per minute (3’3″ – 33′ per minute)
  • Temperature – 100 – 580 °C (212 – 1,076 °F)
  • Welding Nozzle Seam Width – 40 mm (1-9/16″)
  • Weight (unpackaged) – 17 kg (37.5 lbs)
  • Welding Materials – TPO, PVC, EPDM, TPE, ECB, EVA, FPO, PIB, TPU and Bitumen
  • 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’
  • Protection Class – I
  • CE Approved


Product Data Sheet

Operating Instructions

The Uniroof 300 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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