E4C offers the highest power available from the GEW range, to support the most demanding UV curing applications and the fastest printing speeds on web or sheetfed machines. It performs to the harshest cure test procedures and is suitable for low migration applications.

E4C has optically tuned reflectors to maximise curing power and operates quietly, with minimal air requirements. Water flow monitoring technology ensures water flow at all times, and the E4C’s water-cooled reflectors support the highest UV power whilst limiting heat transfer to the substrate, making it safe for a broad range of heat-sensitive materials.

It is designed to operate with the lowest level of maintenance and is engineered for fast, easy lamp changes. All replaceable components are plug-and-play, and the reflectors can be cleaned and fully replaced without breaking the water seals. Furthermore, the reflector mechanisms and seals are tested to millions of operations to ensure reliability.

E4C is also LED-ready: its hybrid lamp casing can house either LED, E2C or E4C arc lamp cassettes. It has a compact profile to fit the widest range of machines and is retrofittable on all E2C installations.

It is also available with multi-point UV monitoring and inert gas curing options.


  • Highest power – High powered 220W/cm in GEW’s standard E2C lamp profile for the most demanding print applications
  • Easy maintenance – Designed for fast, simple lamp changes and easy replacement of reflector without breaking water seals
  • Flexibility – E2C, E4C and LeoLED cassettes all fit in the same casing for ultimate flexibility of press setup and cost-effective upgrades to existing systems
  • Maximum machine productivity – Fast start lamp technology; system proactively avoids unplanned downtime; consistent, high-speed curing
  • 5-year warranty – Safeguards against unplanned maintenance costs
  • Options – Doped lamps (Fe, Ga); customisation to suit specialist applications; inert atmosphere curing; multi-point UV monitoring

At work


Max electrical power 220W / cm
Spectrum Mercury**
Irradiance at focal point 10.7W / cm²*
Typical dose @ 100m / min 220mJ / cm²*
Maximum length 170cm
Standard cross section 110mm W x 190mm H
Cooling Air & water
Standard max operating temperature 40°C (104°F)
Standard max humidity Non-condensing

GEW Retrofit Spotlight video

The prospect of retrofitting a busy, working press with a UV curing system can be daunting. How long will it take? How much production time will be lost? How will it affect the press? What if there are unforeseen problems? Will technical support be provided?

Our Retrofit Spotlight video addresses these and many other common questions, in detail. Watch now.