WELDPLAST S4 Extrusion Welder

The WELDPLAST S4 is compact and ergonomically designed for plastic fabrication or geomembrane welding applications. The multi-functional display includes maintenance notifications, time meters, and pre-set temperature/air flow programs for ease of use. The powerful drive system produces an output of up to 4 kg/hour, depending on material/conditions.

• Suitable for PP, HDPE, and LDPE
• Screw type extrusion welder with barrel heater
• Integrated brushless hot air blower
• Compact housing design reduces noise
• Quick, effective cooling of drive and electronics
• Multi-function digital display with menu driven operation
• Integrated microprocessor to monitor tool and regulate welding process
• 360° adjustable grip
• Twist-free welding rod intake on left and right side of tool
• Available in three versions:
  • Ø 3 – 4 mm welding rod intake
  • Ø 4 – 5 mm welding rod intake, GEO version: hot air tube on top, 40 mm overlap welding shoe included
  • Ø 4 – 5 mm welding rod intake, PLASTICS version: hot air tube on side, K15 fillet welding shoe included​

Why Buy From Us

The WELDPLAST S4 is available in Canada only through STANMECH and our distributor network. Tools bought through us are electrically certified for use in Canada. In many cases this entails replacing cords or switches in the tool to meet stringent CSA standards. Each tool is physically inspected by an approved field inspector prior to certification. We offer same-day shipping on in-stock items and service everything we sell from our facility in Burlington, Ontario, Canada.

Technical Data

Voltage	V	230
Frequency	Hz	50 / 60
Power Consumption	kW	3.7
Output	kg/h	1.5 - 4.0
Welding rod	mm	Ø 3 - 4 or Ø 4 - 5
Size (L x W x H)	mm	560 x 110 x 300
Weight	kg	8.7
Approval markings		CE, S+, QPS
Electrical protection		Class I

Part Numbers

116.948: WELDPLAST S4 – Ø 3-4 mm welding rod version
146.812: WELDPLAST S4 – Ø 4-5 mm welding rod, GEO version
146.813: WELDPLAST S4 – Ø 4-5 mm welding rod, PLASTICS version

Download operating manual

Leister How-to Videos

Accessories

	146.239 146.240	Blank welding shoe, complete 54 x 40 x 52 mm 74 x 50 x 58 mm
	146.243 146.244 146.245 146.246 146.247	V-seam welding shoe, complete V-seam 12 mm, X-seam 25 mm V-seam 15 mm, X-seam 30 mm V-seam 20 mm V-seam 25 mm V-seam 30 mm
	143.231 146.232 146.233 146.234	Fillet welding shoe, complete 15 mm (a = 10 mm) 20 mm (a = 14 mm) 25 mm (a = 17.5 mm) 30 mm (a = 21 mm)
	146.241 146.242 145.899	Overlap welding shoe, complete 25 mm 35 mm 40 mm
	146.642 146.644 146.646 146.652	Corner outside seam welding shoe, complete 8 mm 10 mm 12 mm 15 mm
	146.218 146.230	Corner welding shoe, complete Ø 20 mm Ø 14 mm
	144.904 145.704	Angled adapter 45° 90° Caution: You must use welding shoes with an integrated air guide when using an angled adapter. Contact STANMECH for more details.
	117.064 117.065	Side hot air guide Top hot air guide
	117.053 117.518 141.177	Preheating nozzle Small, 20 mm Medium, 25 mm Large, 35 mm
	160.454	Tool rest
	136.231	Pre-heat reflector
	149.723	Insulation sleeve
	144.095	Welding rod de-reeler
	119.540	Storage case
	109.984	Element for WELDPLAST S4, 230V / 2200W

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Back to: Geomembrane Equipment