WELDPLAST 300

The WELDPLAST 300 extrusion welder from Leister is a compact and powerful solution for professional plastic welding with PE and PP. Designed for equipment and vessel manufacturing, the hand-operated extruder combines a high output of over 3 kg/h with ergonomic handling, precise process control, and low operating costs.
The WELDPLAST 300 was developed with a clear goal in mind: to reduce the total cost of extrusion welding by more than 40 %. This is made possible by maintenance-free brushless technology, lower energy consumption, consistent weld quality, and reduced rework. Users benefit from lower welding costs per meter and increased productivity in daily use. The fully brushless drive system, featuring a POWERdrive drive motor and an ECOdrive blower motor, reduces wear and significantly extends maintenance intervals. This means less maintenance, fewer downtimes, and more productive welding time – especially during long workdays on the job site or in the workshop. The smart Eco Mode provides additional efficiency. It reduces energy consumption in standby mode by up to 60 %, protects the components, and helps lower operating costs over the long term. This makes the WELDPLAST 300 ideal for users who want to weld plastic in an energy-efficient and cost-effective manner. The integrated 2-zone heating system with Dual Heater supports targeted preheating and controlled plasticization. This makes it easier to control critical welding parameters – resulting in reproducible welds, strong joints, and a lower risk of rework. Even under challenging power conditions, the WELDPLAST 300 delivers consistent performance. Modern electronics reliably compensate for voltage fluctuations of up to ±20 %, thereby ensuring consistently high welding quality. Weighing just 7 kg, with an ergonomic design and wire feed on both sides, the WELDPLAST 300 is comfortable to handle and offers great flexibility when welding. This reduces fatigue, improves control, and increases output during demanding applications. Typical applications include tanks, ventilation ducts, water reservoirs, fish farming tanks, piping systems, and other plastic structures with medium-sized seam cross-sections. The optimally positioned upper air intake, the easy-to-clean air filter, the mounting bracket, and the integrated threaded holes make operation, cleaning, and integration into production environments easier. The proven Leister welding shoe range is fully compatible with the WELDPLAST 300. This makes the hand-held extruder an efficient choice for anyone who values low overall costs, high weld quality, reduced maintenance, and consistent results in extrusion welding.