107.123 | .75" / 20mm Wide Slot Nozzle
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
The TRIAC ST from Leister is a high-performance heat gun designed for precise plastic welding and fabrication. It combines exceptional control with an ergonomic two-component handle and a powerful engine. The tool features easily removable air filters for optimal performance and includes a protective case. With over 80 nozzles and tailored plastic welding kits, the TRIAC ST is ideal for a variety of professional applications. See additional TRIAC information below including accessories and available welding kits custom-built by HeatGun.com experts for your industry needs.
The Leister Triac ST is an award-winning hot air hand tool used for plastic welding, single ply roofing, floor welding, geo-membrane welding, and for many other plastic and fabrication industries. The TRIAC ST is the hot air hand tool that is preferred by professional plastic welders worldwide.
Here at Heat Gun, we are immensely proud to stock and distribute the ever-popular Triac ST produced by the best name in plastic welding – Leister.
The Leister Triac ST is a popular plastic welder that is designed for shaping plastics by forming thermoplastics. This versatile tool can be used for a wide range of applications, such as welding plastic sheets, shaping and fusing pipes, and repairing plastic items. The Triac ST welder is known for its reliability and durability, making it a popular choice among professionals and DIY enthusiasts alike.
The Leister Triac ST was first released in the early 2000s and has undergone several design updates over the years. The latest model features a digital display, an ergonomic handle, and an improved heating system. The Triac ST is produced by Leister Technologies, a Swiss-based company that specializes in manufacturing plastic welding equipment. They are a proven manufacturer of high-quality systems for hands-free and other hand tools.
The Triac ST welder is available from our online store in two models based on voltage and wattage, each designed for specific applications. We also offer other plastic welding hot air hand tools, which are designed for welding thin sheets of plastic, while others are designed for welding thicker materials. Some models also feature adjustable temperature controls, allowing users to customize the heat output to suit their specific needs. The Triac ST is our most versatile plastic welding tool. We also offer a wide range of Triac ST spare parts available for the machine, which makes the customization of a production line to manufacturers needs an easy affair.
As one of the world's premium stockists of Leister products, we are proud to offer the Triac ST at a very reasonable price. Here at Heat Gun, we also offer top-notch support and stock a whole host of Triac ST spare parts so that you can keep your plastic welder in good condition for years to come.
Whether you're a professional plastic fabricator or a DIY enthusiast, the Leister Triac ST is a versatile tool that can help you achieve your goals. This tool is perfect for all these industries and more:
As one of the world's premium stockists of Leister products, we are proud to offer the Triac ST at a very reasonable price. Here at Heat Gun, we also offer top-notch support and stock a whole host of Triac ST spare parts so that you can keep your plastic welder in good condition for years to come.
Whether you need Triac ST spare parts or are looking for nozzles for your Triac ST, we have you covered with our wide range of products.
Download TRIAC ST operating manual and our how to weld plastic guide for FREE.
Voltage V~ 120
Frequency Hz 50 / 60
Power W 1600
Temperature °F 104 – 1292
Air volume (68°F) cfm 8.5 (17.7 cfm at max. temp)
Dynamic pressure Pa 3000
Nozzle holder inches 1.24
Emission dB(A) 67
Size (L × ) inches 13 × 4, handle 2
Weight lbs 2 (without power cord)
What is hot air welding used for?
Hot air welding, also known as plastic welding, is a popular method of joining and shaping thermoplastics using heat. This technique involves melting and fusing plastic materials together using a hot air gun, such as the Leister Triac ST. Hot air welding is used in a wide range of industries and applications, including tanks, pipes, tubing, connectors, pond liners, bumpers, and roofing membranes.
What are the benefits of using a Triac ST Welder?
The Triac ST Welder offers a number of benefits when it comes to shaping plastics using hot air. First, it is a versatile tool that can be used for a wide range of plastic welding applications, from thin sheets to thicker materials. Second, it is a reliable and durable tool that can withstand heavy use over time. Third, it offers precise temperature control, allowing users to customize the heat output for their specific needs. Fourth, its ergonomic handle and lightweight design make it easy to use and maneuver, reducing operator fatigue.
How hot is the air that comes out of a Leister Triac ST?
The air that flows out of the Triac ST's wide range of nozzles can be up to 1292 Fahrenheit. The device has adjustable temperature settings. Adjustable temperature is one of the key features of any good plastic welding tool. Some plastics react poorly to extremely high temperatures, while other plastics require very high temperatures to melt.
Where can I learn more about the Triac ST?
Check out our heat gun blog where we offer a variety of help articles about the Triac ST.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
To be used with all speed welding nozzles for the Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
This nozzle requires a 5mm round tubular nozzle:
To be used with all speed welding nozzles for the Triac ST, Triac AT and Diode.
This nozzle requires a 5mm round tubular nozzle:
This nozzle screws onto Triac/Diode with the screw-on "protection tube" and requires the Triac/Diode nozzle adapter 143.833 or Hot Jet S/Labor S nozzle adapter 143.831. This nozzle also fits directly onto the Welding Pen.
This nozzle screws onto Triac/Diode with the screw-on "protection tube" and requires the Triac/Diode nozzle adapter 143.833 or Hot Jet S/Labor S nozzle adapter 143.831. This nozzle also fits directly onto the Welding Pen.
This nozzle screws onto Triac/Diode with the screw-on "protection tube" and requires the Triac/Diode nozzle adapter 143.833 or Hot Jet S/Labor S nozzle adapter 143.831. This nozzle also fits directly onto the Welding Pen.
This nozzle screws onto Triac/Diode with the screw-on "protection tube" and requires the Triac/Diode nozzle adapter 143.833 or Hot Jet S/Labor S nozzle adapter 143.831. This nozzle also fits directly onto the Welding Pen.
This nozzle screws onto Triac/Diode with the screw-on "protection tube" and requires the Triac/Diode nozzle adapter 143.833 or Hot Jet S/Labor S nozzle adapter 143.831. This nozzle also fits directly onto the Welding Pen.
This nozzle screws onto Triac/Diode with the screw-on "protection tube" and requires the Triac/Diode nozzle adapter 143.833 or Hot Jet S/Labor S nozzle adapter 143.831. This nozzle also fits directly onto the Welding Pen.
This nozzle screws onto Triac/Diode with the screw-on "protection tube" and requires the Triac/Diode nozzle adapter 143.833 or Hot Jet S/Labor S nozzle adapter 143.831. This nozzle also fits directly onto the Welding Pen.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
This nozzle requires a 5mm round tubular nozzle:
Made of 304 stainless steel, compatible with Triac ST, Triac AT and Diode.
Leister's 140.161 28 mm Pressure Roller has loads of grip with the wooden handle making it easier to seal welds without the need to exert excessive force.
The LEISTER TRIAC ST is a handy, reliable and versatile hot air hand tool for thermoplastic-roofing, vinyl flooring, billboards, tarpaulins, civil engineering, tunneling, landfills, plastic fabrication and shrinking projects. Use the Triac ST to weld seams in hard-to-reach areas, install small patches or perform various seam repairs.
The TRIAC ST is an easy to use hand held welder's tool. Output is controlled via a rotary knob just like the TRIAC S. The new TRIAC handle design gives customers a better grip, while an improved weight distribution makes the plastic welding tool more comfortable to use. The TRIAC ST offers enhanced agronomical design and the same Dual Air Filters found in the TRIAC AT. This hot air welder is economical, extremely rugged, and designed with dependability and a long lifespan. It’s easy to use this self-contained TRIAC ST, simply plug in the plastic welding tool and turn it on; select your temperature and it’s ready to go.
This portable hot air hand tool is perfect for what a plastic welder needs, but to bolster your job versitility we also have created custom plastic welding kits to get any job done. We’ve taken the standard LEISTER TRIAC ST and added your favorite nozzles, accessories and a LEISTER storage case in several ready-to-go bundle kits. The TRIAC ST can be found in these industry professional kits, such as fabric repair kits, flooring kits and thermo plastic kits.