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Yamato DC Series Pirani Vacuum Gauge Freeze Dryer 

DC401-115V  DC401-220V / DC801-115V  DC801-220V


Freeze Dryer equipped with cold trap


  • Contaminant free system
  • Designed with automatic safety vacuum venting system preventing oil backflow when turned off or when power failure occurs
  • Ice can be refrozen and removed smoothly from the vessel by Hot Gas Bypass System
  • Equipped with Pirani Vacuum Gauge
  • Safety Valve is linked with service receptacle for vacuum pump
  • Environment friendly coolant used for refrigeration
  • Highly mobile on wheels
Trap cooling temperature-45°C-85°C
Time to reach minimum temperature50 min. (20°C to -45°C)80 min. (20°C to -80°C)
Dehumidify amount0.6L1.0L
Temperature sensorN/APlatinum resistance temperature detector Pt100Ω
Temperature displayN/A7 segment LCD
RefrigeratorAir Cooling Type, 400WAir Cooling Type, 350W
Refrigerator, coolantR404A, Coolant amount: 300g ±5gR600a and others, mixed coolant
Compound gaugeN/AHigh pressure/Low pressure monitor
Bath Shape, materialCylinder, Stainless steel
DrainVacuum hose with stopper
Vacuum gaugePirani Vacuum Measure
Trap defrostDefrosted by Hot Gas
Exhaust port (vacuum pump connection)ø17mm
Ambient temperature range5~30°C
Safety deviceElectric leakage breaker with over current protection, refrigerator overload relay, valve for back flow prevention
Trap dimensionsø153 x H235mm
External dimensions WxDxH300 x 450 x 920 mm405 x 500 x 1040 mm
Internal capacity~4L
Power source 50/60 HzAC115V 12A
AC220V 7A
AC115V 13A
AC220V 7.3A
Included accessoriesVacuum silicone grease; vacuum hose (φ12 × φ30 × 1.5m)Vacuum silicon grease, vacuum hose (φ12 × φ30 × 1.5m)

Click on the links below to download the associated PDFs.

DC401/801 Catalog

DC401/801 Poster

To download Operational Manual, visit our Technical Support Center

40 years as a leading scientific lab equipment provider in the United States.
All products come with a 1 year warranty.
Every product is made through environmentally conscious methods and remains eco-friendly all throughout its life cycle.