1 / 6
Weldy Hand Extrusion Welders for PE and PP
Handheld extrusion welders for strong, high-volume PE and PP welds in tank fabrication, pipework, membrane lining and water infrastructure.
- Brand
- Weldy
- Category
- Plastic Welding Equipment
- Type
- Product Range
- Hand extruders for PE and PP thermoplastics
- Deposit molten filler for high-volume welds
- Interchangeable welding shoes for different seam geometries
- For tank, pipe, membrane and civil engineering work
- Process control features on selected models
- Ergonomic designs for continuous welding
Description
Extrusion welding joins thick or demanding thermoplastic sections by depositing molten filler material into the joint. A hand extruder feeds welding rod into a heated barrel, where it is plasticised. Hot air preheats the joint surfaces, and the molten material is pressed into the seam through a shaped welding shoe. This makes extrusion welding suited to larger welds than hot air welding with rod.
Weldy hand extrusion welders are designed for PE and PP in underground engineering, civil engineering, and plant, tank and container construction. Typical work includes:
- fabricating plastic tanks and containers
- welding pipes and fittings
- joining and repairing geomembranes in landfills, reservoirs and canals
- building and repairing boats and aquaculture structures
The range covers compact extruders for fabrication work and higher-output models for longer seams and larger welds. Some models add process control features for closer monitoring of the weld.
Key Features and Benefits
| Seam geometry | Typical use |
|---|---|
| Overlap seam | Joining overlapping sheets and membranes, including geomembrane liners. |
| Fillet weld | Joining sheets at an angle, such as tank walls to tank bases. |
| Corner seam | Inside and outside corners in tank and container fabrication. |
| V-seam / X-seam | Butt joints between sheets, prepared with a V or double-V edge. |
When selecting an extruder, consider:
- the material to be welded (PE or PP grade)
- the welding rod diameter
- the required material output
- tool size and weight for the working position
- whether speed adjustment and temperature monitoring are needed
High material output
Extruders deposit filler material continuously, so larger welds are completed in fewer passes than with hot air rod welding. Output depends on the model and on the welding rod diameter used. Higher-output models suit long seams and larger cross-sections.
Welding shoes for different seam geometries
The welding shoe shapes the deposited weld. Interchangeable shoes cover overlap, fillet, corner and V/X seams, so one extruder can be set up for different joints. On many models the shoe can be rotated to suit the welding direction.
Process control on selected models
Depending on the model, features can include:
- adjustable extrusion speed
- a digital temperature display
- an LED work light
- automatic cool-down
- overload protection
These help operators keep weld conditions consistent.
Designed for continuous welding
Rotating handles, additional side handles and locking triggers support a comfortable working position and continuous welds without holding the trigger throughout.
Applications and Use Cases
Applications for Weldy extrusion welders include:
- Plastic tank fabrication: welding PE and PP sheet into tanks and containers.
- Pipe and tube welding: joining plastic pipework and fittings.
- Landfill and mining membrane welding: welding PE geomembranes in containment projects.
- Reservoirs and canals waterproofing: liners for water storage and conveyance.
- Aquaculture construction and repair: plastic aquaculture structures.
- Boat construction and repair: welding thermoplastic components.
Suitability for a given application depends on the extruder’s output, size and the welding shoes available for it.
Request a quotation
Buy Extrusion Welders from Global Source Middle East
On lining, tank and water-infrastructure projects, extrusion welding is often on the critical path. The extruder has to deliver enough material, fit the working position and match the seam. Global Source Middle East supplies Weldy hand extrusion welders to plastic fabricators and civil contractors in the UAE, together with the welding shoes and welding rod that complete the setup.
Contact Global Source Middle East with your material, seam types and typical weld volumes to receive a quotation for the right Weldy extruder.
Frequently Asked Questions
When should I use an extrusion welder instead of a hot air welding tool?
Extrusion welding is the better choice for thicker sections and larger welds, where a large volume of filler material is needed. Hot air welding with rod suits thinner material and smaller seams.
Which materials can Weldy extrusion welders join?
Weldy extruders are designed for polyolefins, mainly PE grades such as HDPE, LDPE and LLDPE, and PP. The welding rod must match the material being welded.
Do I need different welding shoes for different joints?
Yes. The welding shoe shapes the weld, so overlap, fillet, corner and V/X seams each call for a matching shoe. Several shoes allow one extruder to cover multiple joint types.
