Leister Twinny T7 Geomembrane Welding Machine (HDPE 0.5 - 2.5 mm)
R307,360
We supply Leister Twinny T7 Geomembrane Welding Machine (HDPE 0.5 - 2.5 mm). Send us your quantity and delivery location for a quotation, and ask our team to include installation where your project requires it.
The Leister Twinny T7 is a combi-wedge welding machine for joining overlapping geomembrane sheets. It is used for welded liner installations in ponds, reservoirs and containment systems. This listing covers HDPE welding in the 0.5 - 2.5 mm material range.
Include the product name, quantity and delivery location. Supply, fabrication and installation can be quoted to your scope.
Need help selecting the right grade? View the product selection guide →
Description
The Leister Twinny T7 Geomembrane Welding Machine (HDPE 0.5 - 2.5 mm) is a lightweight and versatile combi-wedge welder recommended by Geosynthetics South Africa for HDPE liner welding in uneven terrain and smaller containment projects. Compact yet powerful, it delivers fast, precise, and consistent welds, making it ideal for reservoirs, aquaculture, and civil engineering works.
At Geosynthetics South Africa, we understand that not all projects require heavy-duty machines like the Geostar G7. For lighter HDPE liners and projects in rough site conditions, the Twinny T7 offers flexibility and speed. We assist clients in securing this machine for purchase or hire, with the option of trained operator support for professional seam welding.
Applications:
- Aquaculture & Agriculture: Ponds, irrigation canals, fish farms
- Water Containment: Small to medium reservoirs, stormwater ponds
- Landfills: Thin HDPE capping liners and leachate ponds
- Civil Engineering: Canals, drainage, and flood protection projects
Materials Welded:
- HDPE (0.5 - 2.5 mm)
- LLDPE
- TPO
- PVC
- FPP
Key Features:
- Combi-wedge system - short and long wedge options
- Up to 100% faster welding than earlier Twinny models
- Lightweight and ergonomic for portability
- Digital control of welding temperature, speed, and pressure
- Rugged rollers designed for rough ground
Why Choose Geosynthetics South Africa:
- Pan-African Supply: Serving South Africa, Botswana, Namibia, Ghana, Tanzania, and beyond.
- Hire With Operator: Ideal for contractors who need professional results without purchasing.
- Technical Training: Operator guidance, seam testing, and QA/QC compliance.
- Spare Parts & Service: Local access to Leister parts and servicing ensures uptime.
The Leister Twinny T7 is the ideal solution for flexible HDPE liner welding. Backed by Geosynthetics South Africa’s supply, hire, and technical support, it ensures contractors achieve reliable results, even on smaller or more complex projects.
Supply, delivery and installation across Africa
Geosynthetics South Africa undertakes projects through three service options:
- Supply only - products supplied to the agreed specification.
- Supply and delivery - materials and logistics coordinated to your project site.
- Supply, delivery and QA/QC-controlled installation - one coordinated scope from procurement to documented handover.
For projects across Africa, we coordinate with the Geosynthetics Africa Group to mobilise installation crews from group companies across the continent. Materials, delivery, mobilisation and project-specific quality records are agreed as part of the project scope.
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Supply, delivery & installation
South African supply
We are the South African supplier of geosynthetic welding equipment and installation accessories. We have ready stock of standard grades and formats for South African projects.
Delivery & cross-border supply
We supply geosynthetic welding equipment and installation accessories across South Africa and Southern Africa, including cross-border delivery. We coordinate site access, unloading and cross-border documentation for your order.
How we install
We install geosynthetic welding equipment and installation accessories. Match the equipment and accessories to the membrane or assembly system. Confirm setup, calibration and trial welds or fastening trials before use. Our installation team uses the specified equipment with the inspection and testing procedures required for the works.
Specialist installation supported by Geosynthetics Africa (Pty) Ltd, an IAGI Installer Member.
Get a supply, delivery & installation quoteProduct documents
Ask for the current datasheet and installation instructions for Leister Twinny T7 Geomembrane Welding Machine (HDPE 0.5 - 2.5 mm). Identify the catalogue grade / SKU in your request so the technical submission matches the material quoted.
Technical datasheets · Installation guides
Request documents for this gradeEngineer specification
Supply and install Leister Twinny T7 Geomembrane Welding Machine (HDPE 0.5 - 2.5 mm). Installed by an IAGI Installer Member.
SELECTION · SPECIFICATION · PROJECT SUPPLY
Choose the right specification
Choose welding equipment for the material, seam geometry, production duty and site conditions.
- Confirm liner polymer, thickness range and wedge or extrusion-welding duty.
- Specify power supply, access, accessories, spares and operator requirements.
- Verify suitability through the approved welding procedure and trial-seam acceptance.
Define the quality records
Record equipment identity and checks, operating parameters, trial seams and applicable weld test results.
For a useful quotation: send the grade or performance specification, quantity, location, required date and scope. Availability, delivery and installation responsibilities are confirmed in the quotation.
Why Geosynthetics South Africa
One enquiry coordinates the specified product, technical submission, delivery and any agreed installation and QA/QC scope. We define quantities, programme, responsibilities and handover requirements against your project.
