Product Name
Leister (157.047 & 157.071) HEMTEK Pressure Rollers (for Top & Bottom)
Brief Description
These are essential replacement pressure rollers, specifically the top roller (157.047) and bottom roller (157.071), designed for use with the Leister HEMTEK ST and HEMTEK K-ST stationary hot-air welding machines. They play a critical role in applying consistent and precise pressure during the hot-air welding process of various thermoplastic materials, ensuring strong and seamless bonds.
Popular Applications & Uses
- Welding hems on advertising banners and tarpaulins.- Creating pole pockets for banners and other fabric structures.- Welding piping onto various thermoplastic fabrics.- Sealing plastic fabric hoses and protective covers.- Waterproofing applications in textile roofing, facades, and pools.- Manufacturing and repairing truck tarpaulins, awnings, and wind blockers.
Industries that Commonly Use It
- Tarp, Fabric, Awning Manufacturing- Sign & Display- Construction/ Building Services- General Manufacturing- Plastic Fabrication- Transportation/ Specialty Vehicle
Special and Unique Features
- Specifically engineered as top (157.047) and bottom (157.071) rollers for seamless integration with Leister HEMTEK ST and K-ST welding machines.- Integral to the HEMTEK system, which facilitates hands-free operation via a foot pedal, allowing operators to precisely guide the material.- Contributes to achieving high-quality, stress-free welds by ensuring consistent and adjustable pressure application.- Part of a comprehensive system that eliminates the need for additional hot-air hand tools for finishing, streamlining the welding process.
Key Properties
- Model Numbers: 157.047 (Top Roller) and 157.071 (Bottom Roller).- Designed for a 30mm (1.2 inches) welding nozzle/seam width.- Roll material: High-quality silicone roller, 50 Shore A hardness.- Country of origin: Switzerland, reflecting Leister's manufacturing standards.- Enables infinitely adjustable pressure when used with the Leister HEMTEK ST machine, thanks to an integrated weight mechanism.
Surface Compatibility
- PVC (Polyvinyl Chloride)- PE (Polyethylene)- PP (Polypropylene)- Other thermoplastics and plastic fabrics commonly used in industrial welding applications.
Known backups / known substitutes
- Other sizes of Leister HEMTEK pressure rollers, such as 20mm (e.g., 157.048 top, 157.070 bottom) or 40mm (e.g., 108.117 top, 161.202 bottom), depending on the required seam width.- General Leister pressure rollers designed for plastic welding, though specific compatibility with the HEMTEK ST system should be verified for optimal performance.- Replacement parts from other manufacturers for similar hot-air welding machines, provided they meet the necessary specifications and compatibility requirements.
Comparison Note
These Leister HEMTEK Pressure Rollers are precisely engineered for seamless integration and optimal performance with the Leister HEMTEK ST and HEMTEK K-ST stationary welding machines. Their specific silicone composition and 30mm sizing are tailored to the HEMTEK system's design, ensuring consistent pressure distribution for high-quality, durable welds on thermoplastic materials. This specialized design differentiates them from generic hand rollers or rollers intended for other Leister hot-air tools, which may not provide the same level of precision, durability, or compatibility with the automated HEMTEK welding process.
