Product Description
This item was noted that the thermostat is broken, and will need to be replaced.
Thermo Scientific VWR 6291 Vacuum Oven – Model 89508-426, 0.7 Cubic Foot Benchtop Vacuum Oven for Drying and Curing
This used Thermo Scientific VWR 6291 (Model 89508-426) is a benchtop vacuum oven designed for drying, curing, vacuum embedding, and plating applications in research and industrial laboratories . The unit features a 0.7 cubic foot (19.8 liter) Type 304 stainless steel interior with a temperature range from ambient +10°C to 220°C .
The oven uses a radiant warm-wall heating system for excellent temperature uniformity (±6.0°C at 150°C under 25 in.Hg) and features a polycarbonate safety shield, silicone door gasket, and positive latch door to maintain seal at all vacuum levels . The front-mounted three-way valve allows for evacuation, venting, and purging of inert gases (e.g., Nitrogen or Argon) .
Key Specifications
| Specification | Details |
|---|---|
| Manufacturer | Thermo Fisher Scientific (VWR Collection) |
| Model Number | 6291 |
| Catalog Number | 89508-426 |
| Serial Number | 300197832 |
| Voltage | 120V, 50/60Hz |
| Current | 5A |
| Chamber Size | 0.7 cu ft (19.8 L) |
| Interior Dimensions | 12″D x 10″W x 10″H |
| Exterior Dimensions | 16″D x 9-7/8″W x 16-1/4″H |
| Temperature Range | Ambient +10°C to 220°C |
| Temperature Uniformity | ±6.0°C at 150°C (25 in.Hg) |
| Vacuum Gauge | 0 to 30 in.Hg |
| Insulation | 7.6 cm (3″) glass wool |
| Interior Material | Type 304 stainless steel |
| Weight (Net) | 87 lbs |
| Shipping Weight | 125-130 lbs |
| Rel# | 20 |
| Condition | Used – Untested |
Applications
-
Drying and Curing: Heat-sensitive materials under vacuum to prevent oxidation
-
Vacuum Embedding: Preparing samples for microscopy and material analysis
-
Plating and Coating: Drying plated parts and coatings
-
Outgassing: Removing volatile compounds from polymers and electronics
-
Baking: Electronics and components under vacuum
-
Inert Atmosphere Processing: Purging with Nitrogen or Argon
.
Why This Works for Laboratory Professionals
| Feature | Benefit |
|---|---|
| Thermo Scientific Quality | Trusted brand in laboratory equipment |
| Vacuum Capability | 0 to 30 in.Hg gauge for controlled drying |
| Stainless Steel Interior | Corrosion-resistant, easy to clean |
| Radiant Warm-Wall Heating | Even temperature distribution |
| Inert Gas Purging | Nitrogen or Argon capability |
| 0.7 cu ft Capacity | Benchtop size for most lab applications |
| Over-Temperature Protection | Built-in safety |
