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signa 4


IGNA 4A single station front load shuttle HF welder with 4kW stable controlled HF power output is made for various industrial HF welding and heat sealing applications requiring precision flat surface for product positioning and complex shape welds.


IGNA 4A is a perfect machine for production of blister & clam shell packages, medical containers like blood or ostomy bags with switchable welds for tubes and outer edge, laboratory, rehabilitation equipment, automotive parts, cosmetics, etc. Heated electrode plate with temperature presets gives high accuracy for consistent welding of hard PVC/PET foils or PU foams. The HF welder can be easily converted to a standard Heat Sealer for applications where HF welding is not necessary or impossible (eg: PP or PE materials). Machine is equipped with special quick change electrode holder. Custom built tooling and electrodes are available upon request. We have our own in-house tooling department which will design and make any electrode and die required for any demanding production needs.


ith the use of touch screen HMI and programmable PLC operator can easily save multiple (1000) weld/seam recipes. All available options, settings and safety features make this machine a perfect tool for high-end production where precision, durability and strength is the key.

Main features

  • Front load pneumatically driven shuttle work tray
  • Heated electrode holding plate up to 160°C
  • Sealing efficiency from 1kW: 25cm2 for standard PVC materials
  • Easy conversion to standard Heat Sealer
  • 6" colour touch screen programmable HMI with PLC
  • Memory storage above 1000 recipes and USB, WAN-LAN I/O
  • Universal usage for PVC, PU, PET, A-PET, PLA films
  • H-frame rolled steel structure
  • ATS™ Autotuning and ultrafast ARC limiter (solid-state antiflash)
  • Built in VPN client and VNC server
  • Intelligent weld cycle start and switchable power output settings
  • Optional switchable double welds in the same operation
  • Ample 400x600mm work table and weld platen
  • QuickGRIP electrode change system on upper platen
  • Fully shielded HF weld area with safety gates


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


  • Clear plastic blister and clamshell packaging
  • Medical bags, lab accessories, rehabilitation equipment
  • Automotive parts and assemblies
  • Office accessories and promotional items

Gallery - Different models of Signa4 machines

Gallery - Machine details

Gallery - Applications

Output power: 4 kW
Installed power: 6 kW
Welding surface: up to 100 cm2
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 ARC limiter
PLC control system 6" Touch screen HMI
Electrode pneumatic press (at 0,1 - 0,8 MPa) 280 - 1000 kg
Electrode pneumatic press (at 0,8MPa) 1000 kg
Electrode stroke 200 mm
Welding table dimensions 450 x 600 mm
Electrode platen dimensions 370 x 550 mm
Weight 700 kg