The WELDPLAST 600 is the most powerful hand extruder from Leister. The ergonomically shaped extrusion welder convinces with 6 kg/h (13.2 lbs) output for plastic welding in tanks and containers. Its double-sided rod intake gives the powerful Leister hand extruder more flexibility when welding large objects made of polyethylene (HDPE) and polypropylene (PP). These can includes tanks, electroplating tanks, water reservoirs, fish breeding tanks, flue gas scrubbing systems, pipelines, etc., for example.
In addition to it’s brushless blower motor, the WELDPLAST 600 is also equipped with a brushless drive motor. This makes it particularly powerful and durable, ensuring a long life-span with very little maintenance. Specially designed for the materials and applications that utilize HDPE and PP, the WELDPLAST 600 is ideally suited for extrusion welding in tanks and containers. With its specifically designed screw, preheating nozzles and variable handle positions, this hand extruder is well-rounded in its field. All of this makes Leister’s extruder the ideal plastic welding tool for large cross-sections. With its mechanical and electrical interfaces, the WELDPLAST 600 is prepared and predestined for integration into semi-automated work processes. The increasing quality requirements for tanks and containers were also taken into account when developing this extruder. That is why the WELDPLAST 600 is equipped with the proven Leister Quality System (LQS). Via the myLeister app, the welding parameters can be clearly documented in a log while welding. This is an advantage for users, as it allows them to showcase the quality of the work they have carried out. The WELDPLAST 600 is designed for tank and container construction. Its counterpart for civil engineering is the WELDPLAST 605.
Technical Data
Article: 170.461
Voltage: 230 V
Frequency: 50/60 Hz
Power: 3680 W
Welding Rod: ø 4–5 mm / 0.16–0.2 in
Material Output ø 4 mm: 2.6 - 4 kg/h / 5.73 - 8.81 lb/h
Material Output ø 5 mm: 3.6 - 6 kg/h / 7.93 - 13.22 lb/h
Welding Materials: HDPE; PP
Weldable Sheet/Membrane Thickness: 20 - 40 mm / 0.78 - 1.57 in
Air Guide: External
Screw Heating: Coil Heater
Air Temperature Control: Closed Loop
Lqs: Yes
Display: Yes
Brushless Blower Motor: Yes
Brushless Drive Motor: Yes
Led Working Light: Yes
Length: 809 mm / 31.85 in
Width: 140 mm / 5.51 in
Height: 273 mm / 10.74 in
Weight: 12.2 kg / 26.89 lb
Power Cable Length: 5 m / 16.4 ft
Plug: CEE blue, 3 poles, 16A
Noise Emission Level: < 70 dB(A)
Approvals: CE; UKCA
Protection Class: I
Country Of Origin: Switzerland
Features:
- Brushless drive motor for long service life
- Data recording with the Leister-Quality-System (LQS)
- Digital interface for remote control
- Mechanical interfaces for easy mounting
- Low energy consumption
HIGHLIGHTS Powerful and durable hand extruder

All operating elements on the powerful Leister extruder WELDPLAST 600 can be easily reached with one hand from the main handle.

The LED light on the Leister WELDPLAST 600 manual extruder illuminates the welding area and creates optimum lighting for reliable plastic welding.

With the WELDPLAST 600, the cable guide is located under the housing. This makes it easier for users to guide the equipment and ensures that work is unobstructed.
APPLICATIONS Virtually unlimited
Plastic tank fabrication
Boat construction and repair
Aquaculture construction and repair

















