Product Name
Leister 161.156 Unidrive 500 - Pressure Roller
Brief Description
This is a silicone rubber pressure roller, specifically designed as a replacement or accessory for the Leister UNIDRIVE 500 semi-automatic hot-air welding machine. It plays a critical role in applying consistent pressure during the hot-air welding of thermoplastic membranes, ensuring a strong and homogeneous weld seam.
Popular Applications & Uses
- Ensuring consistent pressure during the hot-air welding of various thermoplastic and elastomer membranes (e.g., PVC, TPO, FPO, ECB, modified EPDM, EVA, PIB, PMI, PO, PP).- Used in conjunction with the UNIDRIVE 500 for welding on flat and pitched roofs.- Waterproofing applications for foundations, tunnels, landfills, mining, reservoirs, canals, and pools.- Detail welding around parapets, skylights, connections, and in tight spaces.- Civil engineering and geomembrane liner prefabrication.
Industries that Commonly Use It
- Construction/ Building Services (especially roofing and waterproofing contractors)- Tarp, Fabric, Awning Manufacturing- Plastic Fabrication (for welding thermoplastic membranes)- Pool/Spa/Plumbing (for pool waterproofing)- General Manufacturing (where plastic welding of membranes is required)- Distributers & Resellers (as a component sold through distribution channels)
Special and Unique Features
- Specifically designed for the Leister UNIDRIVE 500 semi-automatic hot-air welding machine.- Made from durable silicone rubber (50 Shore A) for optimal grip and consistent pressure distribution.- Essential for achieving a constant and homogeneous weld seam quality, which is crucial for reliable waterproofing.- Contributes to the ergonomic operation of the UNIDRIVE 500 by helping apply optimal and even pressure, reducing user strain.
Key Properties
- Material: Silicone roller 50 Shore A.- Inner Diameter: 22.0 mm.- Width: 49.0 mm (for this specific 161.156 model).- Function: Applies consistent pressure during the hot-air welding process.
Surface Compatibility
- Compatible with various thermoplastic and elastomer membranes, including Polyvinyl Chloride (PVC), Thermoplastic Polyolefin (TPO), Flexible Polyolefin (FPO), Ethylene Copolymer Bitumen (ECB), modified Ethylene Propylene Diene Monomer (EPDM), Ethylene-vinyl acetate (EVA), Polyisobutylene (PIB), Polymethyl methacrylate (PMI), Polyolefin (PO), and Polypropylene (PP).
Known backups / known substitutes
- Other Leister pressure rollers of different materials (e.g., PTFE, brass) or sizes (e.g., 8mm, 28mm, 40mm) are available for specific applications or detailed work.- Manual pressure rollers can be used with hand-held hot-air welding tools, though the UNIDRIVE 500 system aims to bridge the gap between manual and fully automatic welding.
Comparison Note
This pressure roller is an integral component of the Leister UNIDRIVE 500, a semi-automatic welding machine that combines the precision and speed of automatic welders (like Leister VARIMAT or UNIROOF) with the maneuverability of manual hand tools (like Leister TRIAC). The roller's design ensures optimal pressure application, contributing to weld quality that is significantly stronger and more consistent than purely manual methods, especially in challenging or confined spaces.
