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supra duo


pecial Edition SUPRA DUO HF Welder is designed specifically for use in production of Stretch Ceiling (French Ceiling) interior design elements. Double head machine, with foot pedal operation is equipped with special high grade welding/cutting electrode to achieve perfect straight line "invisible" seam.


UPRA DUO HF Welder has universal application for both: PVC film welding and Harpoon welding with the use of special patented IAW™ "Inverted Airplane Wing" shape tooling. Pneumatically driven welding bar is moved up&down with the use of foot switches allowing the operator both to use both hands for exact material positioning under the electrode, while ZTG SafeDOWN™ anti-crush safety system and pneumatic lock down front gate assures the safe work environment.

Main features

  • Custom designed for specialty PVC or PU films
  • Universal usage for foil weld/cut and harpoon weld
  • Simple and easy to operate
  • High production capacity with small foot print
  • Flexibility to add extra tables for larger format products
  • Special design IAW™ harpoon tooling
  • Optional laser projection guide for easy positioning
  • Weld/cut electrodes for "invisible seam" welding
  • ZTG SafeDOWN™ anti-crush safety system
  • HF emission lock down front gate
  • Ultra-fast sensitive ARC sensor
  • Stable and efficient HF generator


  • Warranty: 12 months
  • Approx. delivery time: contact sales department
  • Certificates: CE, EU, EMC, FCC, OSHA
  • Standard color: Blue, RAL5023


  • PVC Stretch Ceilings interior design elements
  • Indoor and outdoor lightning fixtures
  • 3D and molecular decoration structures
  • Advertising signs and billboards
  • Protective clothing
  • Reflective materials and signage

Gallery - Machine details

Gallery - Applications

Output power: 4 kW
Installed power: 6 kW
Working Frequency 27,12 MHz ± 0,6 %
Main fuse 25 A
Power supply 3x400 V; 50Hz
Welding surface (max.) 100 cm2
Power tube air cooled metal-ceramic triode
Anti flash standard, ZTG Antiflash™
PLC control panel HMI Unitronics Jazz
Electrode pneumatic press (at 0,4 - 0,8 MPa) up to 300 kg
Electrode drive pedal with double "V" mechanism
Electrode length 670 mm
Space behind elctrode 300 mm
Compressed air consumption 12 nl/cycle
Electrode working stroke 120 mm
Work table size 780 x 170 mm each
Dimensions (W x D x H) 1080 x 1300 x 1750 mm
Weight 500 kg