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 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

Downloads

operating MANUAL

Product data Sheet

Leister How-to Videos

Accessories

• Welding Shoes
• Tool Specific Accessories
• General Accessories
• Parts

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146.239: Blank 54 x 40 52 mm

146.240: Blank 74 x 50 x 58 mm

146.241: Overlap 25 mm

146.242: Overlap 35 mm

145.899: Overlap 40 mm

146.243: V-seam 12 mm

146.244: V-seam 15 mm

146.245: V-seam 20 mm

146.246: V-seam 25 mm

146.247: V-seam 30 mm

146.525: Fillet seam 12 mm, 8.5 mm seam thickness

146.231: Fillet seam 15 mm, 10 mm seam thickness

146.232: Fillet seam 20 mm, 14 mm seam thickness

146.233: Fillet seam 25 mm, 17.5 mm seam thickness

146.234: Fillet seam 30 mm, 21 mm seam thickness

146.642: Corner outside seam 8 mm

146.644: Corner outside seam 10 mm

146.646: Corner outside seam 12 mm

146.652: Corner outside seam 15 mm

146.230: Corner seam Ø14

146.218: Corner seam Ø20 mm

136.231: Preheating reflector

160.454: Tool rest

117.065: Top hot-air guide

117.064: Side hot-air guide

144.904: Angled adapter 45° *

145.704: Angled adapter 90° *

117.053: Pre-heating nozzle 20 mm

117.518: Pre-heating nozzle 25 mm

141.177: Pre-heating nozzle 40 mm

149.723: Insulation sleeve

123.173: Tool case

*CAUTION: You must use welding shoes with an integrated air guide when using an angled adapter

106.976: 28 mm, PTFE

152.676: Leister weld seam template

153.009: Plastfix

154.026: Contour scraper

154.259: Scraper blade

144.095: Welding rod de-reeler

109.984: Heating element, 230V/1100+1100W

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Other Tools

WELDPLAST S6 Extrusion Welder
The most powerful hand extruder on the market. It was designed specially for the requirements of geomembrane welding.

FUSION 3 Extrusion Welder
Easy operation due to its ergonomic, slim line design. With a designed length of 670 mm, the FUSION 3 is ideally suited to use in geomembrane welding.

FUSION 3C Extrusion Welder
Easy operation due to its compact design. With a designed length of 580 mm, the FUSION 3C is ideally suited to use for high output use in plastic fabrication.

Back to: Geomembrane Equipment