SEAMTEK 900 AT: The sophisticated textile welding machine

Whether seam or overlap: The intelligent construction of the SEAMTEK 900 AT makes practically any welding application possible.

The maintenance-free machine is manufactured with the usual Leister quality. Thanks to its multi-armed system, it can be accurately configured in record time to create high-quality seams in any situation. The huge selection of various drive wheels, nozzles and guides guarantees a maximum in flexibility. Perfect overlap seams, closed and open hems, piping welding and tape welding from 8-64 mm are possible. Thanks to its various guides, the material can be fed easily even by inexperienced users. The control parameters can be easily set; the intuitive operation is carried out completely via the touch screen.

Drive wheels, nozzles, guides
Extensive range of accessories
Multi-armed system
Configuration in record time
Intuitive interface
Control parameters can be adjusted easily and fast
SEAMTEK - The Video
Numerous Applications



Lap Welding Seam welds and piping welding 3D shape welding


Welding of endless pipes and hoses


Circumference welding Strip welding Closing of end caps

Tape Delivery System

Welding of sealing tape Application of reinforcing tape Welding of connection tape
Unique Features

  • Multi-armed system guarantees great flexibility for specific applications
  • Intuitive user interface for reproducible welding quality through digitally controlled welding parameters
  • Over 30 pre-installed user languages
  • Quiet operation thanks to noise insulation, built-in air pump
  • Test mode for quickly defining parameters
  • Drive rollers and guides can be easily and quickly changed
  • Almost maintenance-free and very durable
  • Nozzle adjustment with stops requires no tools and guarantees reproducible weld seams
  • Tape delivery system with adjustable roll brake
  • Extensive top-quality accessories for your application
  • Swiss quality
  • Arm
  • Welding
  • Leister
  • digital
Maximum flexibility for your specific application

  • The SEAMTEK 900 AT makes every weld easy. Its great flexibility with completely regulated welding parameters makes this machine the indispensable all-rounder for welding technical and industrial textiles. A wide range of accessories guarantees that it can be modified for special applications.
  • Welding
Technical Data
Properties Unit SEAMTEK 900 AT
Voltage V 230/240



Frequency Hz 50/60
Power W 4500
Temperature °C 120-700
Air flow range l/min 80-170
Drive speed m/min 0-30
  • Panel PC with PLC
  • Regulated volumetric flow
Blowers Rotary vane pump
Welding seam width mm 8-64
Welding seam width mm 8-64
Machine weight kg
  • ≈ 238 basic version
  • ≈ 268 fully equipped
Transport crate dimensions mm (L x B x H) 1760 x 926 x 1536
Conformity CE ZertifikatAppliance Class I symbol
Protection Class I Icon Protection Class I
Order the SEAMTEK 900AT now!
We are local – worldwide
Leister Technologies AG
Galileo-Strasse 10
CH-6056 Kaegiswil / Switzerland

Phone +41 41 662 74 74
Fax +41 41 662 74 16
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