The Leister TRIAC AT is an intelligent and robust hot-air hand tool for plastic welding and shrinking. Built to satisfy the most demanding indoor and outdoor applications, each unit undergoes a stringent quality check prior to leaving Leister’s Switzerland factory.


  • e-Drive for precise temperature and air volume control.
  • Large, digital display shows set and actual temperatures.
  • Integrated temperature probe guarantees accurate heat output.
  • Dual air filters that are easily removed for cleaning.
  • Protective heater tube helps users avoid accidental burns.
  • Soft outer shell and lightweight parts ensure optimum, strain-free handling.

The TRIAC AT is ideally suited to:

  • Seam weld thermoplastic roofing systems.
  • Repair and assemble plastic machines and parts.
  • Join billboard and banner plastic sheets.
  • Seam weld vinyl and linoleum floors.
  • Heat shrink plastic sleeves and wraps.
  • Seal civil engineering tunnel and landfill liner seams.

Product Resource Quick Links

Spare Parts


Product Sheet




Specification Table

Voltage V~ 100 120 230
Power Consumption W 1400 1600 1600
Temperature °F 104 - 1292
Air Flow (68°F) l/min 4.2 - 8.4
Size (LxWx∅)   13.1 in. x 3.5 in., handle ∅ 2.2
Weight   2.2 lbs. (with 9.8 ft. cord)
Mark of Conformity    
Protection Class II    




How to Set Up and Operate the TRIAC AT