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simpla crystal


CRYSTAL HF welder is created for the production of crystal clear PVC windows and cinema and projection screens with Invisible Seam technology. With the use of special tools the CRYSTAL HF welder creates a strong and very thin linear weld to join crystal clear PVC film.


achine has a 6 m work table. A special back and front trough configuration and fabric layout during welding provides effective and an automatic weld/cut/press cycle to make the thin-line weld virtually invisible. The final pressing (if needed) is achieved with a separate, independent welding bar which can be used for omega profiles and standard linear welds as well.


ully advanced programming functionality, including ATS™ auto-tuning and WCS™ systems is achieved thanks to an onboard PLC integrated with a 10" touch screen HMI. CRYSTAL machines have smooth HF power output 1-4 kW with high precision down stroke mechanism and a pressure control.


he vacuum section of the work table with special magnetic attachments allow for easy positioning of films/fabrics and welding of zippers with the use of optional tools. The CRYSTAL HF machine is a ready to use solution. There is no need for assembly and special installation.

Main features

  • Designed for invisible seam crystal clear PVC and cinema screens
  • Frequency inverter drive HF welding head
  • High precision rails with linear guide
  • 6 m work table length / 4 m long open work space (with machine parked)
  • Two independent weld heads for (1) weld/cut/pre-press and (2) full-press
  • Universal usage for Crystal PVC, PVC film, PU, TPU
  • Easy material positioning with 2 back troughs, one in front and laser guide
  • 680 mm weld/cut and press electrodes (tools) length
  • 10" touch screen color HMI panel with expanded memory functionality


  • Warranty: 12 months
  • Approx. delivery time: contact sales department
  • Certificates: CE, EU, EMC, FCC, OSHA
  • Standard color: Purple Red, RAL3004


  • Clear PVC windows, rollup crystal clear PVC walls, curtains
  • Cinema and movie projection screens, home theatre sceens
  • Pergolas with Omega profiles and zippers
  • Awnings, shades, blinds
  • Tensile structures, tents, shade systems, truck covers
  • Small and large format technical textiles PVC or PU coated

Gallery - Machine details

Gallery - Applications

Output power: 1 - 4 kW
Main fuse 25 A
Working Frequency 27,12 MHz ± 0,6 %
Power supply 3x400 V; 50 Hz
Power tube air cooled metal-ceramic triode
Antiflash ultra-fast solid state ZTG AntiFlash™ system
Autotuning ATS™ autotuning system
PLC control system 10" Touch screen HMI
Max. sizes of electrodes 680 x 0,7 mm (weld/cut); 680 x 25 mm (press)
Electrode stroke up to 50 mm (ability to stop at any height)
Work table width (without trough) 380 mm
Work table length 5600 mm (4100 mm open space)
Front trough size 160 x 120 mm
Electrode mount QuickGRIP, pneumatic
Grounding foot standard, pneumatic drive
Dimensions (L x H x W) 1970 x 1700 x 5400/8000 mm
Weight 700 kg (welding head) + 800 kg (track)