
LAB1ST VO-E Series Vacuum Drying Ovens feature an external chamber heating design, providing a versatile and cost-effective solution for drying, heating, and testing under vacuum or inert gas conditions.
With a standard temperature range of up to 200°C and a rectangular stainless steel chamber, these ovens maximize usable space and accommodate flexible shelf configurations, making them ideal for laboratories and industrial applications requiring gentle and uniform heating.
Key Facts
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Temperature Range: RT+15~200°C
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Chamber Volume: 23L - 500L
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Uniform Chamber Heating with Removable Trays
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Oil-Filled Mechanical Vacuum Gauge
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With LED Interior Light
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General drying, heating, and testing
Features
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4th Generation LCD Temperature Controller: Specially calibrated for vacuum ovens to ensure precise and reliable temperature control.
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Calibratable Controller with Countdown Timer: Programmable timer from 1 to 9999 minutes for flexible process management.
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Independent Over-Temperature Protector (with indicator): Prevents overheating and ensures operational safety.
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LED Interior Light: Provides clear illumination for easy observation of samples.
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Stainless Steel 304 Interior: Combines aesthetic appeal with long-lasting durability and easy cleaning.
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Oil-Filled Mechanical Vacuum Gauge: Delivers stable and reliable vacuum measurements.
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Dedicated Inert Gas Inlet Valve: Allows controlled introduction of nitrogen or other inert gases.
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Standard KF25 Vacuum Port: Ensures reliable and convenient connection to vacuum systems.
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Uniform Chamber Heating with Removable Trays: Enables flexible loading configurations and easy operation.
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Maximized Capacity: Accommodates more trays within the same chamber volume for enhanced productivity.
Specifications
Model | VOS200-60L-HV | VOS200-90L-HV |
|---|---|---|
Environment Temp. | 5 °C ~ 40 °C | |
Display Resolution | 0.1°C | |
Temp. Fluctuation | ±1 °C | |
Ultimate Vacuum | 1.0×10⁻4 Pa | |
Vacuum Display | Electronic type | |
Chamber Material | 316 Stainless Steel | |
Chamber Volume | 64 L | 2.26 cu ft | 91 L | 3.21 cu ft |
Shelves | 2 pcs | 2 pcs |
Heating Method | Chamber Heating | Chamber Heating |
Inner Dimensions (WxDxH, mm) | 400×400×400 | 450×450×450 |
Outer Dimensions (WxDxH, mm) | 600×570×1390 | 610×590×1350 |
Power Input | 3000 W | 3500 W |
Power Supply | AC220V 50Hz | AC220V 50Hz |
Temp. Range | RT+10 °C ~ 200 °C |

Options
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High-Temperature Heating: 300°C, 400°C, 500°C
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Digital Vacuum Gauge
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High Vacuum (<1Pa)
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PLC Touchscreen Controller (with recipe control, N₂ and vacuum regulation)
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Vacuum Controller (0.1–100 kPa)
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Full Stainless Steel Exterior
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Dust Filter
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KF25 Stainless Steel Vacuum Hose (1m / 2m)
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Stainless Steel Cold Trap (Dry Ice or Coil Type)

