Laser Plastic Welding
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Laser Plastic Welding
Innovative and flexible

Our innovative laser systems for welding plastic make new methods possible in the automotive industry, the medical and sensor industries, electronics and micro-system technology. Every one of our developments defines the state of technological possibility. An internationally exclusive Leister specialty is the patented and award-winning "GLOBO Welding" that can weld three-dimensional plastic components in one step. We can find customized, cost-effective solutions for the most versatile jobs and customer demands. Our specialists assist you every step of the way, from design and construction to material selection and process optimizing and integration.

Leister has been the internationally leading provider of plastic welding machines for over 60 years. We have comprehensive theoretical and practical knowledge in plastics processing. We also have established ourselves in the market with our laser beam welding. Leister was one of the first companies to develop and manufacture laser systems for the welding plastics. Every one of our developments defines the state of technological possibility.

The broad range of laser welding concepts, developed by Leister engineers and technicians in our laboratory, have proven themselves in practice many times.

Leister Laser Plastic Welding is in the position to provide customized state-of-the-art solutions for our customers' problems.

GLOBO welding
An impressive array of services
  • Selection of a suitable design
  • Tests for material selection and weldability
  • Construction selection of suitable joining geometry
Process and procedure development:
  • Determination of process window for all relevant parameters
  • Inspection of components and evaluation of weld quality
  • Implementation of processes into the production environment
Prototypes and small series manufacturing:
  • Manufacturing of prototypes
  • Pre-series and small series production
Maturation of a new process
Laser welding is now an established technique for welding thermoplastics. New applications are constantly being added, which add to the advantages it has over traditional joining techniques. Laser technology also often offers a solution where conventional systems fail or can only deliver unsatisfactory results. You can benefit from our know-how by having us test your applications.
Nothing but advantages
  • Contactless, flexible joining technique
  • Minimum thermal load on the parts to be welded
  • Simple geometry for the seam
  • No particle release
  • Vibration-free processing
  • Visually perfectly welded seam
  • Highly accurate
  • Very resilient
  • No wear and tear to tools

Suitable materials

Almost all thermoplastic plastics and thermoplastic elastomers, including ABS, PA, PC, PP, PMMA, PS, PBT and fiberglass reinforced plastic types, can be welded with laser beam. The welding seam strength is comparable with that of the base material.

Transparent plastic can be welded to dark plastics which have preferably been colored with soot. Special pigments allow welding dark,dark and transparent/transparent combinations, as well as colored plastics.