7 rack freeze dryer

Our mid-sized system, the TSS-747 is a great choice for anyone looking to expand their freeze drying operation.

329 shelf capacity, this walk-in freeze dryer is perfect for the smaller but competitive freeze drying operation.

The TSS-747, a 7-rack freeze dryer from TechSource Systems, is a versatile mid-sized system ideal for expanding freeze-drying operations. With a 329-shelf capacity, this walk-in freeze dryer suits smaller yet competitive freeze-drying setups. Mechanical features include an all-stainless-steel rib-reinforced process chamber, Leybold SP630 vacuum pump, and a low-temperature chiller (-40C to 20C). The PLC controller, powered by Opto22 GROOV technology, ensures safety with user-programmable vacuum cycles and 96 unique recipes. Independently heated shelves, precise heat input matching sublimation requirements, and three heat control zones per rolling rack enhance electrical efficiency. This advanced medium freeze-drying system emphasizes performance, control, and adaptability.

Base unit price, turn key system with all components included: $775,000

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freeze dryer system

TSS-747 — Medium Commercial Freezer Description


  • All stainless steel rib reinforced process chambers
  • Leybold SP630 vacuum pump with WSU 2001 blower pump
  • Engineered to size low temperature chiller -40C to 20C (package system)
  • High vacuum rated valves (roughing, fore line, vent)
  • Stainless steel electrical raceways
  • Stainless steel electrical enclosures
  • Empty chamber maintains under 10 microns pressure
  • Trays are standard 18"x26" baking sheets
  • 7-rack system

PLC Controller

  • Opto22 GROOV PLC controller
    • Opto22 open source programming
    • Compatible with all major PLC types
    • Full safety interlocks to maintain employee safety
    • user-programmable vacuum cycles
    • 96 user-programmable unique recipes
    • manual operation of all parameters with user input batch ID
    • password-level protection for operator access
    • native VPN client accessible
    • web based GROOV view interface
    • node-red open source programming available for custom programming


  • Each shelf is independently heated
  • Heat input is engineered to match sublimation requirements
  • each rolling rack has three heat control zones monitored by dual independent temperature sensors
  • Electrical control panels distribute all power to:
    • Chiller
    • Vacuum system
    • Heaters
    • Auxiliaries

TechSource Systems TSS-747 Details

Feature ManufacturerValue
Vacuum systemLeyboldSP630/1001
RefrigerationFluid Chiller Inc.140,000 BTU/hr @ -40℃
Condenser Surface Area308 ft2
Condenser Ice Capacity2200 lbs
Temperature Control Zones21
Temperature Sensors42 per
Removable Shelves47 per
Heater Power3 phase/60Hz 230v/210a
Vacuum and Mechanical Power3 phase/60Hz 460v/55a
Chiller Power3 phase/60Hz 460v/105a
Compressed AirCDA60 PSIG / 10 lpm
Chiller FluidDynaLene HC-FG
ControlsOpto-22GROOV-EPIC PLC