Large Capacity Vacuum Oven Programmable 512L 220V vs Vacuum Oven Programmable 91L 220V
Which should you choose?
- ▸If budget is the priority, Vacuum Oven Programmable 91L 220V is the lower-cost option; Large Capacity Vacuum Oven Programmable 512L 220V lists higher and typically adds capability or capacity.
Specifications side by side
| Spec | Large Capacity Vacuum | Vacuum Oven Programmable |
|---|---|---|
| Type | Floor-type large-capacity vacuum drying oven, programmable | Floor-type large-capacity vacuum drying oven, programmable |
| Class | Capital | Capital |
| Timer | 1 min – 999 hr 50 min | 1 min to 999 hr 50 min |
| Method | Decompressed-chamber direct heating | — |
| Sensor | K-thermocouple (controller + overheat protector) | — |
| Weight | ~450 kg | ~190 kg |
| Voltage | AC220V, 31.5A, 50/60 Hz (no plug, round terminal) | 220V single phase, 11A, 50/60 Hz |
| Heater power | 6.5 kW | — |
| Program mode | 3 segments, 30 steps (30×1, 15×2, 10×3) | — |
| Vacuum gauge | Pointer type, -100 ~ 0 kPa | Bourdon-tube type, 0 ~ -0.1 MPa (gauge pressure) |
| Air exhaust port | NW40 flange | — |
| Air suction port | Rc 3/8 | — |
| Included shelves | 2 stainless-steel punching plates | — |
| Exterior material | Cold-rolled steel plate with chemical-proofing coating | Cold-rolled steel with baked-on melamine resin finish |
| Interior material | Stainless steel plate | Stainless steel |
| Internal capacity | 512 L | 91 L |
| Observation window | Toughened glass + resin protection panel | Tempered glass + polycarbonate resin plate |
| Insulating material | Glass fiber | — |
| Temperature control | 3-segment PID | PID control by microprocessor |
| Operating vacuum range | 101 ~ 0.1 kPa (760 ~ 1 Torr) | — |
| Operating temperature range | 40 to 200°C | 40 to 200°C |
| External dimensions (W×D×H) | 1020 × 1020 × 1850 mm | 670 × 669 × 1500 mm |
| Internal dimensions (W×D×H) | 800 × 800 × 800 mm | 450 × 450 × 450 mm |
| Vacuum pump installation room | Yes (internal) | — |
Highlighted rows differ. Specs are sourced from manufacturer documentation.
FAQ
- What's the difference between the Large Capacity Vacuum Oven Programmable 512L 220V and the Vacuum Oven Programmable 91L 220V?
- The main differences are in Type, Class, Timer. The table above shows every spec side by side; the decision guide highlights which fits which use case.
- Which should I buy?
- If budget is the priority, Vacuum Oven Programmable 91L 220V is the lower-cost option; Large Capacity Vacuum Oven Programmable 512L 220V lists higher and typically adds capability or capacity.
- Do both carry a warranty?
- Yes — both are sold through Legacy Lab Supplies as an authorized distributor and carry full manufacturer warranty.
Still deciding? Our team compares options with you — no pressure.