Leister VARIMAT/BITUMAT Speed Overlap Weld Nozzle 40 mm

Regular price $920.00

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Leister VARIMAT/BITUMAT Speed Overlap Weld Nozzle 40 mm


This Leister speed overlap weld nozzle is a 40 mm nozzle for VARIMAT and BITUMAT automatic welding machines, used for overlap and hem welding of thermoplastic roofing membranes. It concentrates hot air at the overlap for fast, even seams. One piece per sell unit.


Key Features:

  • 40 mm width: Delivers a 40 mm hot-air weld for membrane overlap seams.
  • Machine fitment: Designed for Leister VARIMAT and BITUMAT automatic welding machines.
  • Overlap welding: Built for overlap and hem welding applications per the manufacturer.
  • Genuine part: Original Leister nozzle, manufacturer part 138.46.
  • Seam quality: Focused airflow supports consistent, complete welds.
  • Single piece: One nozzle per piece sell unit.

Specifications Table:

Specification Details
Brand Leister
Sell unit 1 piece
Product line VARIMAT / BITUMAT
Available sizes 40 mm
Dimensions Nozzle width 40 mm
Material Metal nozzle for hot-air welding
Intended use Overlap and hem welding of thermoplastic roofing membranes with VARIMAT/BITUMAT machines

Fit and Compatibility:

Fits Leister VARIMAT and BITUMAT series automatic welding machines; choose nozzle width to match the membrane overlap. Other machine consumables and fasteners are sold separately.


Frequently Asked Questions (FAQ):

Q: What is included?
A: One Leister speed overlap weld nozzle, 40 mm, manufacturer part 138.46.


Q: Which machines does it fit?
A: It is designed for Leister VARIMAT and BITUMAT automatic welding machines.


Q: What width seam does it weld?
A: It produces a 40 mm weld; match it to your membrane's overlap specification.


Q: Is this a genuine part?
A: Yes, it is an original Leister replacement nozzle.


Q: How is it sold?
A: Sold per piece.


Expert Verdict — Reviewed by the SuperArbor Pro Desk

For TPO and PVC single-ply work, match the nozzle width to the factory overlap of the sheet; 40 mm is a common choice for standard laps. Clean the nozzle of melted membrane residue at each roll change to keep airflow even. Keep a spare nozzle on the roof cart since a damaged outlet can ruin a seam mid-run.

The nozzle runs extremely hot during welding; use heat gloves and allow it to cool before changing.


Add the Leister 40 mm speed overlap weld nozzle to keep your VARIMAT or BITUMAT welding crisp seams.

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Subject to Approval & Availability
All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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