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supra max


UPRA MAX HF Welder is designed specifically for use in production of Stretch Ceiling (French Ceiling) interior design elements. The machine is equipped with special high grade welding/cutting electrode to achieve perfect straight line "invisible" seam. SUPRA 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. Cork coated work table allows handling of very thin and delicate films and backlit weld area helps to visually inspect weld precision and quality.


neumatically 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.


he machine can be upgraded (if needed) with additional length work tables for easier film and harpoon positioning during weld cycle. It can be converted easily into a advertising banner/billboard welder with the use of special wide weld electrode or any other straight bar or spot HF welder.

Main features

  • Universal usage for PVC film and Harpoon welding
  • C-frame modern design
  • High weld precision and efficiency
  • Plexiglass worktable with weld inspection light
  • Weld/cut electrode for film and flat grooved for harpoon - 670mm long
  • Small footprint and great work ergonomics
  • Smooth output power settings
  • Pneumatic front gate limiting HF emission
  • Precision electrode downstroke positioning slide
  • SafeDOWN™ anti-crush safety system
  • Two push-button or foot pedal operation


  • 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 pneumatic
Electrode length 670 mm
Space behind elctrode 500 mm
Compressed air consumption 8 nl/cycle
Electrode working stroke 120 mm
Work table size 1500 x 720 mm
Dimensions (W x D x H) 1500 x 1360 x 1700 mm
Weight 450 kg