Lab-Line 3620ST Duo Vac Benchtop Vacuum Drying Oven 120V 750W 0.65 cu ft 280°C

Lab-Line 3620ST Duo Vac Benchtop Vacuum Drying Oven 120V 750W 0.65 cu ft 280°C

The Lab-Line 3620ST Duo Vac is a benchtop vacuum drying oven designed for laboratory drying, degassing, and low-oxygen heat treatment of samples at elevated temperatures. It operates at 120V AC and is rated at 750W, with a cylindrical vacuum chamber accessible through a front-mounted door with a compression seal. Temperature is regulated by a dual-thermostat control system — a primary Control Thermostat dial and a separate Safety Thermostat — with indicator lights for heat and safety status.

Specifications & What's Included

• Manufacturer: Lab-Line Instruments, Inc. — Melrose Park, IL
• Model: 3620ST (Duo Vac Vacuum Oven)
• Voltage: 120V AC
• Frequency: 50/60Hz
• Current: 6.2A
• Power: 750W
• Maximum Temperature: 280°C (tested and confirmed at our facility)
• Chamber Volume: 0.65 cu ft
• Chamber Dimensions: 12" Deep × 10.75" Wide (cylindrical)
• Overall Dimensions (vacuum tubes removed): 17" × 15" × 20" H
• Temperature Controls: Control Thermostat dial + Safety Thermostat dial, ON/OFF toggle switch
• Indicators: Orange heat-on indicator light; red safety indicator light
• Vacuum Fitting Assembly: Brass manifold on top with green quarter-turn valve, lever shutoff valve, and 0–30 in Hg vacuum gauge
• Power cord included
• Foil-lined interior shelf visible in photos

Applications

Vacuum ovens like the Lab-Line 3620ST are standard equipment in research and analytical laboratories for applications where ordinary convection drying is not suitable. They are commonly used for drying heat-sensitive or moisture-sensitive samples without oxidation risk, degassing polymers and adhesives, removing solvents from samples under reduced pressure, curing materials at controlled temperatures in an inert or vacuum environment, and drying electronic components or substrates where residual solvents must be eliminated. The dual-vacuum-port fitting assembly allows the oven to be connected to a vacuum pump and optionally purged with inert gas. The 280°C maximum temperature makes the 3620ST suitable for a broad range of materials science, chemistry, and semiconductor-related drying and outgassing tasks. Lab-Line Instruments was a well-regarded U.S. manufacturer of laboratory ovens, incubators, and shakers; the Duo Vac series was part of their benchtop vacuum oven line aimed at university, industrial, and government labs.