Product Name
Leister 145.909 Welding shoe complete (FWP-Int. Air) V-seam 20 and X-seam 35-40mm
Brief Description
This Leister 145.909 welding shoe is a specialized accessory designed for use with Leister hot-air extrusion welders, particularly those in the Weldplast and Fusion series. It is engineered to create precise V-seam welds of 20mm and X-seam welds ranging from 35-40mm on various thermoplastic materials. The "FWP-Int. Air" designation indicates its compatibility with internal air guidance systems of the welding tool, ensuring optimal heat distribution for strong, homogeneous plastic welds.
Popular Applications & Uses
- Welding of thermoplastic membranes in roofing applications- Sealing geomembranes for landfill projects, tunnels, and hydraulic engineering- Fabrication of plastic tanks, containers, and other complex plastic products- Joining technical textiles such as tarpaulins, tents, covers, and advertising banners- Waterproofing applications in foundation construction and aquaculture- Repair and construction in marine environments, including boats- Installation of synthetic turf, which often involves geomembrane welding
Industries that Commonly Use It
- Construction/ Building Services- Plastic Fabrication- Tarp, Fabric, Awning Manufacturing- Marine- Synthetic Turf- General Manufacturing- Energy (for infrastructure involving geomembranes like landfills and mining)
Special and Unique Features
- Designed for specific V-seam (20mm) and X-seam (35-40mm) geometries, ensuring consistent weld quality for these profiles- Features internal air guidance (FWP-Int. Air) for efficient and controlled heat application during the welding process- Compatible with a range of Leister extrusion welders, including the Weldplast S2 and Fusion series (Fusion 1, 2, 3, 3C), offering versatility within the Leister ecosystem- Constructed for durability and robust performance in demanding industrial and construction environments
Key Properties
- **Seam Geometry:** V-seam (20mm) and X-seam (35-40mm)- **Air Guide:** Internal Air (FWP-Int. Air)- **Compatibility:** Designed for Leister Weldplast S2, Fusion 1, Fusion 2, Fusion 3, and Fusion 3C extrusion welders- **Material:** Typically made from durable metal alloys to withstand high temperatures and wear- **Function:** Facilitates the creation of strong, homogeneous, and sealed plastic joints
Surface Compatibility
This welding shoe is compatible with a wide range of thermoplastic materials commonly used in plastic welding applications. These include, but are not limited to:- Polyethylene (PE), including HDPE and LDPE- Polypropylene (PP)- Polyvinyl Chloride (PVC)- Thermoplastic Polyolefin (TPO)- Flexible Polyolefin (FPO)- Polyvinylidene Fluoride (PVDF)- Ethylene Chlorotrifluoroethylene (ECTFE)
Known backups / known substitutes
- **Other Leister Welding Shoes:** Leister offers a comprehensive range of welding shoes for various seam geometries and sizes, such as fillet weld shoes (e.g., 145.940 for 20mm fillet weld), corner seam shoes (e.g., 145.811 for 14mm corner seam, 146.645 for 10mm outside corner), and overlap seam shoes (e.g., 145.897 for 1.4" overlap).- **Blank Welding Shoes:** Leister also provides blank welding shoes (e.g., 146.239) that can be custom-modified by the user to suit unique or specialized welding tasks.- **Alternative Welding Methods:** While not direct substitutes for this specific accessory, other plastic welding techniques like hot gas welding with different nozzles, or even other joining methods (adhesives, mechanical fasteners) could be considered for different applications or if a Leister extruder is not available.
Comparison Note
The Leister 145.909 welding shoe is distinguished by its precise design for creating V-seam 20mm and X-seam 35-40mm welds, which are critical for applications requiring strong butt joints and specific material thicknesses. Unlike general-purpose welding nozzles or shoes designed for overlap or fillet welds, this accessory is tailored for these particular seam geometries, offering optimized performance and consistency for such specialized tasks. Its internal air guidance system ensures efficient heat transfer, contributing to the high-quality and durable welds characteristic of Leister equipment. While other Leister shoes cater to different seam types, the 145.909 is the go-to for its specified V and X seam dimensions, making it a specialized tool rather than a general-purpose one.
