The Leister TRIAC ST is the analogue workhorse of membrane welding: 1600W, stepless heat from 40 to 700 degrees, and 0.99kg in the hand, which is why roofers pick it for a full day of overlap welding.
No digital screen to fail: the Swiss analog control shrugs off cold starts and dirty generator power that lock up electronic guns.
Professional hot-air tool for welding and processing plastic membranes and other thermoplastics.
Stepless temperature control from 40 to 700°C with 240 l/min airflow.
0.99 kg body, ergonomic handle and more than 80 compatible attachment nozzles.
Fit the correct Leister nozzle for the job.
Set the temperature to the material and system specification and allow the tool to stabilise.
Make a test weld, then weld with steady travel and pressure.
Follow the current TRIAC ST operating instructions for shutdown and maintenance.
No digital temperature display.
Match the heat setting and nozzle to the material and process, then verify the setup with a test weld.
Follow the current Leister operating and safety instructions.
Leister Triac ST Heat Gun Physical Properties
| Property | Value |
|---|---|
| Voltage | 230 V |
| Power | 1600 W |
| Frequency | 50/60 Hz |
| Temperature Range | 40–700 °C |
| Temperature Setting | Stepless (Analog Dial) |
| Airflow | 240 l/min (Fixed) |
| Air Volume Adjustment | No |
| Static Pressure | 3000 Pa |
| Display | No |
| Outdoor Use | Yes |
| Nozzle Connection | ø31.5 mm / 1.25 in (M14 thread) |
| Length | 338 mm |
| Device Diameter | 90 mm |
| Handle Diameter | 56 mm |
| Weight | 0.99 kg (without cable) |
| Power Cable Length | 3.0 m |
| Noise Emission Level | 67 dB(A) |
| Protection Class | II |
| Plug Type | AU, 3-pin, 10A |
| Approvals | CE, UL, KC, S+ |
| Country Of Origin | Switzerland |