Leister FUSION 2 Handheld Extrusion Welder

The Leister FUSION 2 is a 2800 W handheld extrusion welder designed for continuous joint welding of HDPE, LDPE, LLDPE, and PP thermoplastic sheet from 10 mm to 15 mm thickness, featuring a 360-degree rotating welding shoe, bilateral tangle-free rod feed, and stepless electronic control of output volume and pre-heating temperature – delivering 1.3 to 1.8 kg/h material output at a operating weight of 5.9 kg.

High-Output Handheld Extrusion Welding for Thick Thermoplastic Sheet Fabrication

Extrusion welding of thick thermoplastic sheet – tank walls, chemical vessel panels, structural plastic components, and geomembrane installations involving sheet from 10 mm to 15 mm – requires a tool that can sustain high material output across long continuous weld runs without the weight and physical demand that undermines operator control and weld quality over time. At this sheet thickness, weld joint integrity is a structural requirement: incomplete fusion, inconsistent bead geometry, or variation in pre-heat temperature across the run are defects that affect the load-bearing or containment performance of the fabricated assembly.

The fabrication environment adds further constraints. Tanks and vessels impose curved and cornered joint geometries that a fixed welding shoe cannot follow without repeated extruder repositioning – interrupting the weld run, creating start-stop discontinuities in the bead, and slowing production. Rod feed from a single side creates management demands in confined internal spaces or when working at an angle where the feed direction conflicts with the operator’s position. The FUSION 2 is engineered to address each of these realities: a rotating shoe that follows the joint without repositioning the body, bilateral rod feed that loads from whichever side the working position demands, and a 5.9 kg weight that remains operable by a single technician across a full production shift without the fatigue-related quality degradation that heavier extruders introduce.

FUSION 2 Technical Capabilities and Fabrication Engineering Features

• 360-Degree Rotating Welding Shoe: The welding shoe rotates through the full 360-degree range independently of the extruder body, allowing the operator to transition between straight runs, internal corners, curved joints, and circumferential welds on tanks and pipes without lifting the extruder or interrupting the melt bead – maintaining weld continuity and consistent bead geometry throughout complex joint profiles.
• Bilateral Tangle-Free Rod Feed: Welding rod can be loaded and fed from either side of the FUSION 2 body, eliminating the rod management constraints that single-sided feed creates in confined fabrication spaces, at awkward working angles, or when the operator’s position relative to the joint changes during a continuous weld run.
• 2800 W Heating Power: Delivers the thermal input required to achieve full plasticisation of 4 mm welding rod and adequate pre-heating of 10 mm to 15 mm thermoplastic sheet at the joint face – sustaining weld quality across the material thickness range without thermal deficit at the rod or base material that results in inadequate fusion depth.
• Material Output of 1.3 to 1.8 kg/h with 4 mm Rod: Provides the volumetric throughput necessary for productive continuous welding on thick sheet fabrication – reducing the time per joint metre on structural weld programmes where output rate directly determines project schedule performance.
• Stepless Electronic Control of Output Volume and Pre-Heating Temperature: Integrated electronics allow the operator to adjust both material output and pre-heating temperature continuously across their respective ranges, enabling precise process matching to different material grades, sheet thicknesses, and ambient temperature conditions without fixed preset steps.
• Maximum Air Temperature of 340 °C and Plastics Temperature of 300 °C: The thermal ceiling of the FUSION 2 covers the process temperature requirements of HDPE and PP structural fabrication – materials that require higher welding temperatures than standard PE geomembrane applications – while the air-heated screw and internal air guide maintain consistent melt temperature at the point of extrusion.
• Compact 450 mm Length at 2800 W Output: The FUSION 2 achieves its power and output specification within a 450 mm body length and 98 mm width, enabling access to joint geometries and fabrication spaces where larger extruders at equivalent power cannot operate without obstructing adjacent structure or requiring panel removal.
• 5 m Power Cable: The extended 5 m cable provides working radius around the point of power connection without requiring an extension lead for most fabrication bench and tank construction scenarios, reducing trip hazard management and cable drag on the extruder during mobile weld runs.

Thick Sheet Extrusion Welding Applications for the Leister FUSION 2 in Oman and the GCC

• Chemical Tank and Vessel Fabrication: Welds structural joints on HDPE and PP chemical storage tanks, process vessels, and containment enclosures from 10 mm to 15 mm sheet thickness, where the 360-degree rotating shoe maintains weld continuity around circumferential seams and internal corner joints without repositioning the extruder body.
• Industrial Pipe and Fitting Fabrication: Applies continuous extrusion weld beads to thick-wall thermoplastic pipe joints, custom fittings, and branch connections in process piping systems for chemical, water treatment, and industrial facility construction across Oman and the Gulf region.
• Structural Plastic Component Welding: Produces high-integrity structural extrusion welds on fabricated plastic components used in civil, industrial, and process industry applications where joint strength, material continuity, and weld bead consistency are engineering requirements rather than cosmetic considerations.
• Water and Chemical Containment Structure Fabrication: Supports the fabrication of lined sumps, secondary containment bunds, chemical dosing enclosures, and water treatment infrastructure components in HDPE and PP where extrusion weld integrity determines containment performance and regulatory compliance.
• On-Site Repair and Modification of Thick Thermoplastic Installations: Provides the handheld extrusion welding capability required for field repair and modification of thick PE and PP sheet installations across civil, industrial, and environmental project sites in Oman – where structural plastic components require remediation to original specification without removal to a workshop facility.

Leister FUSION 2 – Available Through iBuild, Authorised Leister Distributor in Oman

iBuild is an authorised Leister distributor in the Sultanate of Oman, supplying the FUSION 2 with full manufacturer backing alongside compatible welding shoes, 4 mm welding rod in HDPE and PP grades, and the complete range of Leister extrusion welding accessories. As a manufacturer-authorised technical partner, iBuild provides application support for welding shoe selection, process parameter setting, and material-specific configuration – ensuring the FUSION 2 is correctly set up for the sheet thickness, material grade, and joint geometry of each fabrication application from initial commissioning.

For plastic fabricators, tank builders, process piping contractors, and industrial construction teams across Oman and the GCC requiring a high-output handheld extrusion welder with the rotating shoe flexibility, bilateral rod feed, and operator weight management that thick thermoplastic sheet fabrication demands, iBuild is the authorised local source for the Leister FUSION 2.