EXTRUDER WELDING MACHINES

High-efficiency and operator-friendly welding solutions for joining thermoplastic materials
EXTRUDER WELDING MACHINES
Extruder welding (extrusion welding) is a high-efficiency and operator-friendly method used for joining thermoplastic materials such as HDPE, PP, PVDF.
Thanks to portable hand-held extruders; strong single-piece seams are achieved in very different jobs such as HDPE tank manufacturing, chemical storage, air ducts, pipe & fittings repairs, geomembrane detail welds.

WHY EXTRUDER WELDING?

  • High productivity:

    Fast progress with melt flow rates between 1.5–4.5 kg/s

  • Strong seam:

    Same chemical structure as base material, high mechanical strength

  • Field flexibility:

    Compact, mobile, works with generator or grid

  • Control and repeatability:

    Digital temperature, flow rate and reporting options

WORKING PRINCIPLE (2-ZONE HEAT + SCREW FEED)

Extruder welding machine;

  • Prepares surfaces for welding with preheating (hot air)

  • Melts the welding rod inside the screw-fed extrusion block and presses it to the nozzle

  • Lays the melt seam on the welding line with special tip/nozzle and joins it with top pressure pads

A stable heat profile is maintained according to material type with dual-zone heat control (air heater + mass heater) and closed-loop sensors; this means homogeneous seam and clean surface.

DESIGN & TECHNICAL SPECIFICATIONS

  • Material compatibility:

    HDPE (PE100/PE80), PP, PVDF (model dependent)

  • Welding rod (rod) diameters:

    Ø3 / Ø4 / Ø5 mm (opt. Ø6 mm)

  • Flow rate range:

    ~1.5 – 4.5 kg/hour (model dependent)

  • Heat control:

    Digital PID; air and mass heat monitored separately

  • Motor:

    Brushless/high torque; low noise; soft start

  • Power:

    230 V, 50/60 Hz (generator compatible for field use)

  • Nozzle set:

    Fillet, corner, overlap, groove/fillet filling tips

  • Ergonomics:

    Balanced grip, rotating body, 360° adjustable nozzle

  • Safety:

    Overheat/current protection, automatic cooling cycle, thermal lock

  • Traceability (optional):

    Welding ID, date/time, material & set value report (USB/QR)

APPLICATION SCENARIOS

  • HDPE/PP chemical tanks & sumps: cylindrical/rectangular tank body and bottom-vertical welds

  • Industrial ventilation/duct & enclosed cabinets: PP/HDPE sheet joining

  • HDPE pipe/fittings repairs: saddle, elbow, tee, sleeve circumferential repair seams

  • Geomembrane details: pipe penetrations, anchor heads, thick detail fills

  • Water & wastewater equipment: weirs, channels, lamella-diffuser details

ACCESSORIES & OPTIONS

  • Nozzle sets: fillet/corner/overlap/groove filling

  • Preheat heads: wide-narrow diffuser, reflector type

  • Rod feed device: external spool, knot-free flow

  • Carrying kit: hard case, shoulder strap, cable winding reel

  • Digital report module: Welding ID – date – heat – duration – operator via USB/QR

  • Light module: LED lighting for work area

    • MACHINE MODELS

    • Duratherm SC
    • Airtherm 1600
    • Sigma3 SC TWISTY
    • Aero C
    • Alpha 3 SC PVC
    • Beta3 SC TWISTY
    • Gamma 3EC
    • GEOWELD Plus