
LAB1ST VOS300/400 series is a high-temperature vacuum drying oven designed for demanding applications requiring elevated temperatures up to 300°C or 400°C.
It combines rapid heating, precise temperature control, and reliable vacuum performance to safely dry heat-sensitive and oxidizable materials.
The unit comes standard with an inert gas inlet valve and over-temperature protection for enhanced operational safety. Ideal for industrial and laboratory use, it ensures consistent and repeatable results with enhanced safety features.
Features
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High-Temperature Capability up to 300°C/400°C for demanding drying processes
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Durable SUS304 Stainless Steel Chamber ensures corrosion resistance and easy cleaning
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High Vacuum Integrity maintained by an adjustable silicone rubber door seal (VOS400-50L uses high-temperature borosilicate material seal for enhanced heat resistance)
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Clear Double-Layer Tempered Glass Door provides excellent visibility of the workspace
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Enhanced Safety Features including over-temperature protection and a standard inert gas inlet valve
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Programmable Process Control for setting heating, vacuum, and nitrogen purge times to ensure batch consistency
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Uniform Shelf Heating with 2 or 3 independently controlled shelves for efficient and consistent drying
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Fully Integrated Plug-and-Play Design includes a built-in vacuum pump and desiccant tank for immediate operation
Specifications
Model | VOS400-50L | VOS300-60L | VOS300-90L | VOS300-120L | VOS300-210L |
|---|---|---|---|---|---|
Display Resolution | 0.1°C | ||||
Temp. Fluctuation | ±1 °C | ||||
Vacuum Level | 133 Pa | ||||
Vacuum Gauge | Mechanical Pointer Type | ||||
Chamber Material | SUS304 Stainless Steel (1Cr-18Ni9Ti) | ||||
Chamber Volume | 64 L | 2.26 cu ft | 64 L | 2.26 cu ft | 91 L | 3.21 cu ft | 125 L | 4.41 cu ft | 215 L | 7.59 cu ft |
Shelves | 2 pcs | 2 pcs | 2 pcs | 3 pcs | 3 pcs |
Heating Method | Shelf Heating | Shelf Heating | Shelf Heating | Shelf Heating | Shelf Heating |
Inner Dimensions (WxDxH, mm) | 400×400×400 | 400×400×400 | 450×450×450 | 500×500×500 | 560×600×640 |
Outer Dimensions (WxDxH, mm) | 600×570×1390 | 600×570×1390 | 610×590×1350 | 660×640×1400 | 720×820×1750 |
Power Input | 3800 W | 2300 W | 2450 W | 2600 W | 2800 W |
Power Supply | AC220V 50Hz | AC220V 50Hz | AC220V 50Hz | AC220V 50Hz | AC220V 50Hz |
Temp. Range | RT+50 °C ~ 400 °C | RT+20 °C ~ 300 °C | RT+20 °C ~ 300 °C | RT+20 °C ~ 300 °C | RT+20 °C ~ 300 °C |
Options
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304 Stainless Steel Exterior Casing



