Benefits of the Leister Unidrive 500 Welder

Leister, the leading multinational manufacturer in plastic processing tools, offers an incredible tool that can serve every roofer. Dubbed the “tool for every roofing application,” the Leister Unidrive 500 welder closes the gap between manual and automatic welding. It is the successor to the Triac Drive welder that offers improved ergonomics and performance.

Handheld, light, and compact for secure storage, the Leister Unidrive 500 Welder is the semi-automatic heat tool that you need for precise results.

Here are the main benefits of the Leister Unidrive 500 Welder.

  1. Safety
  2. Economic value
  3. Easy Handling
  4. Speed
  5. Versatility

If your business requires a hot air tool that doesn’t take up much space but can also perform touch-ups and details, this is an excellent model to explore.

Product Overview

The Leister Unidrive 500 is a semi-automatic welder suited for all roofing applications, but it is especially strong at small details on edges, curbs, and flashing. This model unites the best of both worlds regarding manual and automatic welding. The Unidrive 500 can weld a wide range of thermoplastic and elastomeric membranes via lap welding, including:

  • Polyvinyl chloride (PVC)
  • Thermoplastic olefins (TPO) sheets
  • EPDM Waterproofing membranes

The Unidrive 500’s user-friendly display allows you to select heat and other settings based on the material profile, ensuring the best results based on the material type. It can also weld water stops to waterproofing sheets and plastic profiles, which is important for aesthetic designs or waterproofing.

The machine is easy to maneuver and generates the optimal pressure for all basic welds. It is mounted on wheels and weighs only 9.9 pounds. Because it is semi-automatic, it produces results three times faster than a standard manual hot air welder. It also has a rotating nozzle that enables operators to weld close to the edge of roofs and in tight areas.

On job sites where flexibility and precise welds are vital, the Leister Unidrive 500 is the tool to have on hand. Are you ready to experience hand welding redefined? 

Here are five benefits of the Unidrive 500.


Users can carefully guide this compact welder with two handles for precise movements. Since it also weighs under 10 pounds, you can handle it easily without struggling with user fatigue. It is also an accurate instrument that achieves the correct pressure to keep conditions extra safe.

2. Economic Value

The Unidrive 500 model is priced to be an accessible addition to a roofer’s equipment cache. It also saves operators time and money on maintenance. The Unidrive 500 is virtually maintenance-free because its motors are brushless and its dependable Swiss quality.

3. Easy Handling

When it comes to lap welding, the Unidrive is one of the most versatile tools you can have. It is lightweight and compact, reaching just 30 centimeters in height. Its reversible drive allows you to weld in either direction too. The model’s three ergonomic handles offer outstanding comfort and balance.

Because it is so portable, it can tackle jobs that bigger, heavier welders have trouble reaching like small terraces, roof parapets, domed skylights, end joints, and other areas that require compact instruments or manually applied precision.

4. Speed

The Unidrive 500 performs jobs 3 times faster than manual welding. The user interface is easy to understand and operate, eliminating a time-consuming learning curve as well. Whether you are welding vertical, curved, or horizontal surfaces, this machine can complete the job without having to use a slower manual welder. Users can also be in full control of the speed through digitally regulating it through the user display.

5. Versatility

If you ever have a doubt about your automatic welder reaching a tight spot, then having the Unidrive 500 on hand can give you great peace of mind. This small machine has a rotating nozzle that can reach small spaces quickly.

The Unidrive 500’s revolutionary compact design makes it possible to work in areas that are typically inaccessible for any welding besides manual. It brings the consistency, speed, and quality of semiautomatic welding to these areas too. It can also weld short distances— as short as 60 millimeters, and it can weld in three different widths.

By owning this tool, contractors can be confident to rise to the challenge of diverse welding tasks and produce outstanding results.

Leister Semi-Automatic Welders For Sale

Intech Equipment and Supply is a full-service equipment and parts supplier for various industries, including roofing and spray foam. If you would like to know more about the Leister Unidrive 500 or any other semi-automatic hot air welders, then reach out to our team of experts today.

We’re here to help you choose the right product, make smart additions to your equipment, and troubleshoot problems as well.

Contact us. Our team is ready to meet your unique equipment and accessory needs.