The WELDPLAST S4 extruder from Leister is available in two designs: one option suited for equipment and container construction with a lateral, hot air nozzle, and as a civil engineering version with a top-mounted, pre-heating nozzle. Depending on the variant chosen, the user can process welding wire with cross sections of 3 and 4 (0.12 and 0.16 in) or 4 and 5 mm (0.16 and 0.20 in). The high powered, brushless blower guarantees excellent pre-heating for the high output class.
Technical Data
Voltage: 230 V
Frequency: 50/60 Hz
Power: 3680 W
| Article | Voltage | Welding Rod | Plug | Included welding shoe type |
| 116.948 | 230 V | ø 3-4 mm / 0.12-0.16 in | EU, 3 poles, 16A | Blank |
| 146.812 | 230 V | ø 4-5 mm / 0.16-0.2 in | EU, 3 poles, 16A | Blank |
| 146.813 | 230 V | ø 4-5 mm / 0.16-0.2 in | EU, 3 poles, 16A | Fillet weld seam |
| 156.451 | 230 V | ø 4-5 mm / 0.16-0.2 in | CEE blue, 3 poles, 16A | Overlap seam |
Material Output ø 3 mm: 1.5 - 2.2 kg/h / 3.3 - 4.85 lb/h
Material Output ø 4 mm: 2.2 - 3.8 kg/h / 4.85 - 8.37 lb/h
Weldable Sheet/Membrane Thickness: 15 - 25 mm / 0.59 - 0.98 in
Welding Rod: ø 4-5 mm / 0.16-0.2 in
Material Output ø 4 mm: 1.5 - 2.2 kg/h / 3.3 - 4.85 lb/h
Material Output ø 5 mm: 2.2 - 3.8 kg/h / 4.85 - 8.37 lb/h
Weldable Sheet/Membrane Thickness: 1 - 3 mm / 0.03 - 0.11 in
Welding Materials: HDPE; LDPE; LLDPE; PP
Air Guide: External
Screw Heating: Coil heater
Air Temperature Control: Closed loop
LQS: No
Display: Yes
Brushless Blower Motor: Yes
Brushless Drive Motor: No
LED Working Light: No
Length: 560 mm / 22.04 in
Width: 110 mm / 4.33 in
Height: 300 mm / 11.81 in
Weight: 8.7 kg / 19.18 lb
Power Cable Length: 5 m / 16.4 ft
Noise Emission Level: 85 dB (A)
Approvals: CB Certification; CE; UKCA
Protection Class: I
Country Of Origin: Switzerland
Feature:
- Variant for equipment and container construction
- Variant available for geosynthetics
- Various welding shoes available
- Angle adapter also available
HIGHLIGHTS Extremely powerful, handheld extruder
√ VARIABLE Multifunction handle
Locking knob and wheel adjustment to modify the output grip.
√ VERSATILE Various welding shoes
The various welding shoes allow different weld forms, such as fillet welds, corner welds, X welds, V welds and overlap welds.
√ POWERFUL Strong blower
The extruder’s brushless blower allows for excellent pre-heating.
APPLICATIONS Virtually unlimited
Reservoirs and canals waterproofing
Landfill and mining membrane welding














