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Roof Waterproofing Membrane Welder User Manuel

Roof Waterproofing Membrane Welder User Manuel

Below is roof waterproofing membrane welder user manuel

Semi-automatic Hot Air Gun


User Manual

This machine is high quality semi-automatic hot air welding machine; it is of new design and technology. Please read this manual carefully before using this machine, and retain it for future reference.

  1. Applications

It can be applicable for overlap welding.

Source: Roof Waterproofing Membrane Welder User Manuel


  1. Notice 
  2. (Roof Waterproofing Membrane Welder)
  3. Unplug the tools before opening it to avoid membrane welder of being hurt by exposed wires or component inside the machine with power.
  4. Incorrect use of it can cause fire and explosion hazard because of high temperature, especially near combustible materials and explosive gases.
  5. Don’t touch heater tube and nozzle when they are hot. They may cause burns. Don’t point hot air flow in the direction of people or animals.
  6. The voltage of membrane welder rating stated on the welder must correspond to line/mains voltage (220V).


  • Source: Roof Waterproofing Membrane Welder User Manuel

The drop cable/wire with protective earthed conductors can only be used.

  1. To ensure Roof Waterproofing Membrane Welder operator safety and reliable operation of equipment, the power supply must be installed power supply and leakage protection at the construction site.
  2. It must be running at the correct use of manipulation of the operator, or they may cause a fire or explosion caused by high temperature.
  3. Don’t use welder in the water, or on a muddy construction site, to avoid flooding, rain or moisture.
  • Technical Parameters
  • (Roof Waterproofing Membrane Welder)
Voltage230 or 120V
Temperature50~620℃ (122~1148℉)
Air volume180(Max)L/min
Welding width40mm
Welding speed0.5-5.0
Size( L*W*H)275*237*432mm
  1. Description – Roof Waterproofing Membrane Welder


1.Ho air nozzle11Blower ON/OFF switch
2.Pressure roller12Temperature adjust knob
4Base plate14Creeping wheel
5Handle fix case15Creeping wheel fixed screw
6Handle16Fixed plate of creeping wheel
7Power cord
8Walking speed adjust  knob
9Walking switch





Blower power cord



  1. Welding Process (Roof Waterproofing Membrane Welder)
  2. Setting temperature according to the data of welding test (rotate temperature adjust knob (12)).
  3. Setting speed according to the data of welding test (rotate walking speed adjust knob (8)).
  4. Turn on Roof Waterproofing Membrane Welder ON/OFF switch (11).
  5. Put the Roof Waterproofing Membrane Welder hot air nozzle into the middle of upper film and down film (as shown the below picture) when the hot air blower reaches the setting data.
  6. Press down handle (6).
  7. Turn on walking switch (9).
  8. To observe the relative position of the edges of pressure roller (2) and upper film.
  9. When the welder walks into the end of material, pull up the machine a little, and move out of the hot air nozzle from welding place.
  10. Turn off the walking switch (9).
  11. Turn off blower ON/OFF switch (11) after cool down hot air blower.
  12. Routine Maintenance (Roof Waterproofing Membrane Welder)

Use a steel brush to clean the hot air nozzle

Clean the air inlet at the back of the hot air blower




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