Plastic Welder Air Tool Replacement Parts Center

Replacement Parts Center

At Hot Air Tools^®, we not only sell quality products, but we also offer the replacement parts you need.

What Replacement Parts Does Hot Air Tools^® Have?

Hot Air Tools^® has replacement parts for Leister and BAK tools to help you effectively replace any broken or missing parts on your hot air tool^®. On this page, you can find hot air tool^® replacement parts for brands such as Triac, Varimat, and Uniroof.

Replacement Parts

No matter the size of the part you need, we can help.

Triac ST

The Triac ST is a lightweight, hand-held hot air tool^® designed for plastic welding, roofing, and flooring applications. It features ergonomic handling, adjustable heat, and compatibility with over 80 nozzle attachments.

Triac S

The original model in Leister’s TRIAC series, the Triac S is popular for its reliability and efficiency. It features a simple rotary knob control for adjusting heat output, a lightweight and an ergonomic design optimized for extended use.

Varimat V2 Mechanics

The Variat V2 Mechanics, officially known as the Leister VARIMAT V2, is a high-speed, semi-automatic hot-air welding machine designed primarily for roofing professionals.

Varimat V2 Electronics

The Variat V2 Electronics is an advanced automatic hot-air welding machine that leverages a closed-loop electronic control system to maintain exacting consistency in temperature, drive speed, and airflow.

Varimat V2 Electron

The Variat V2 Electron is a premium automatic hot-air welding machine. It’s known for maintaining precise control over temperature, weld speed, and airflow through an intuitive e-Drive knob.

Uniroof AT ST Electronics

The Uniroof-AT-ST Electronics by Leister is specifically engineered for thermoplastic roofing membranes. It combines a slim, maneuverable design with sophisticated electronic control.

Uniroof AT ST Mechanics

The Uniroof AT ST Mechanics features a maintenance-free direct-drive motor integrated into the pressure wheel, delivering streamlined performance and durability. At the same time, its closed-loop drive control ensures consistent weld seam quality.

Uniroof AT ST Hot Air Blower

The Uniroof AT ST Hot Air Blower is designed for welding thermoplastic roofing membranes on both flat and low-pitched roofs. It features an adjustable transport axle that allows precise welding close to edges and parapets.

When are Replacement Parts Necessary?

When regular use leads to normal wear and tear, it affects tool performance. Over time, certain parts can degrade from continuous friction, heat, and pressure. When components such as blades, motors, or seals start to show signs of damage, efficiency decreases, and the risk of further breakdowns increases.

Also, certain welding jobs are known to place additional stress on tools, which causes them to wear out even faster. For example, cutting through tougher materials or working in harsher environments can shorten the lifespan of various parts. If you notice a drop in performance, such as increased noise, vibration, or slower operation, it may indicate that parts are worn out.

Once you become aware that a specific part has broken or failed during use, it’s time to replace it. Proactively replacing any parts that appear to be damaged or inefficient will help maintain your tool’s effectiveness.

Contact Us to Learn More

For other replacement parts, check out our plastic welding tool spare parts page.

If you need help finding the right spare part, the professionals at Hot Air Tools^® are ready and able to assist you with any questions or requests. We’re experienced welders, too, so we speak your language and understand your needs. Simply contact us, and we’ll be more than happy to help.