SteelMax

Maximum disinfection, maximum safety and protection

UV Ray has developed and manufactured a system for the food industry.
The system is designed to for the disinfection of cups, lids and foils.

The UVC System

Using advanced ray-tracing simulations of a typical 220 ml dairy cup (100 x 70 x 50 mm3) at a distance of 20 mm from the quartz glass window of the UVC unit, the system demonstrated excellent light distribution, ensuring effective disinfection of the cup's bottom and walls.

Many different cups, ranging in volume from 70 ml to 500 ml, were disinfected at a distance of 20 mm from the UVC unit using different power levels and exposure times.
Prior to disinfection, the cups were sprayed with Aspergillus brasiliensis and Bacillus atrophaeus. Log reductions of 2 to 5 were achieved, depending on cup shape, timing, and the UVC unit's power level.

The UVC cassette
  • Food-grade AISI 304 stainless steel construction
  • Proven lamp-head technology from UV printing systems
  • Low-ozone UV lamps from Dr. Fischer with a lifetime of 2,000 hours up to 160 W/cm and standard arc lengths of 380, 500, 600, 750, 900, 1,000, 1,100, 1,200, and up to 1,450 mm available
  • Custom lengths available on request
  • Flexible cooling configurations with configurable air inlet and outlet arrangements for linear and rotary packaging machines
  • Optional optical configurations available
  • To avoid overheating, the lamp glass reflector and shutter are designed as two separate, independent parts
  • Glass reflector warranty of 4,000 hours or 12 months, whichever comes first; in practice, service life may extend to several years
  • Easy and fast lamp replacement for simple maintenance
  • Integrated, pneumatic shutter, independent of the UV glass reflector to minimize heat buildup; closes and opens in less than 0.5 seconds in the event of a machine stop
  • Compact design enables adaptation of the system to a wide variety of lid, cup, and foil disinfection systems
Perfect Disinfection of Lids

Ray-tracing simulations of our UVC unit, incorporating the exact lamp position and reflector geometry, demonstrate excellent coverage of a typical lid with a diameter of 95 mm positioned 40 mm from the quartz glass window.

  • Lids with diameters of 95 mm, 117 mm, and up to 130 mm, manufactured from aluminum, PP, PET, and fiber-composite materials, were successfully disinfected and validated in microbiological labs with Aspergillus brasiliensis, Aspergillus carbonarius, and Bacillus atrophaeus.
  • The lids were treated at a distance of 40-80 mm from the UVC unit, with exposure times ranging from 800 to 1,800 ms.
  • Log reductions ranging from 2.8 to >5 were achieved, depending on the microorganism, exposure time, and test method.
Made for Fully Automated Yogurt Lid Disinfection

The lids are transported into position within a few hundred milliseconds and remain stationary for 800-2,000 ms, depending on the lid and cup sizes.

UVC Medium-pressure Disinfection System
  • Compact and cost-effective UVC system to disinfect the surfaces of packaging materials
  • Very high disinfection rate against microorganisms such as Aspergillus brasiliensis or Bacillus atrophaeus, even with exposure times of only 0.5–2 seconds
  • Improved disinfection rates from log 2–4 for packaging materials and improved lifetime stability of the UVC
  • Higher disinfection dose and less heat, thanks to the dichroic glass reflector
  • Reduced heat load on the shutter, as the shutter and reflector are independent of each other
  • Enhanced hygienic housing design featuring an innovative seal of the quartz glass window and a new long-life glass-breakage detector
  • Reduced noise levels due to high system efficiency and a variable-speed fan
  • Electronics and mechanical components proven over decades of operation in printing machines
Applications

Food Industry

Technologies
Power Supplies

UV Ray’s new PowerMaxx suite of power supplies, engineered in-house and based on 205+ years of UV/LED curing experience, offers printers the highest energy efficiency and environmental compatibility in a sleek, compact design to power, powering all UV Ray reflectors and LED lamps.

Pure
Pure
Hybrid or LED with no loop control
Hybrid
Hybrid
UV/LED + fan drive
LED
LED
Up to three LED lamps in a single unit, offering significant savings in energy and cost
Case Studies