The Yamato DN-611IE is a 223 L mechanical inert oven — a forced-ventilation drying/heat-treatment oven designed to run under a continuous inert-gas (typically nitrogen) purge to displace oxygen from the chamber. The larger-chamber member of the DN family, the Yamato DN-611IE is rated to 360 °C with ±0.2 °C stability and reaches about 2 % chamber oxygen in roughly 70 minutes of displacement. It protects oxygen-sensitive materials at higher batch volume.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato DN-611IE (brochure model DN610I) |
| Type / method | Mechanical inert oven — forced ventilation (inert-gas purge) |
| Operating temperature range | 40–360 °C |
| Temperature stability | ±0.2 °C (at 360 °C) |
| Temperature uniformity | ±3.0 °C (at 360 °C) |
| Time to reach max temperature | Approx. 60 min |
| Displacement time | Approx. 70 min (chamber O₂ reaches 2 %) |
| Interior / exterior | Stainless steel SUS304 / cold-rolled steel, baked melamine finish |
| Insulation | Glass wool and ceramic fiber |
| Heater | 4.0 kW |
| Fan | Sirocco fan, 10 W × 2 |
| Flowmeter | Maximum flow rate 30 ml/min |
| Gas injection port | Outside diameter 8 mm (rear face) |
| Control | PID control by microprocessor; digital setting |
| Sensor | K-thermocouple (double sensor) |
| Safety | ELB with over-current protector, self-diagnostics, key lock, independent overheat prevention (0–399 °C) |
| Internal dimensions (W×D×H) | 620 × 600 × 600 mm |
| External dimensions (W×D×H) | 790 × 845 × 1080 mm |
| Chamber capacity | 223 L |
| Weight | Approx. 120 kg |
| Power supply | AC200V, 21 A, single phase, 50/60 Hz (US nominal 220 V) |
| Included | 2 shelf / shelf-bracket sets, instruction manual |
Application Profile
The 223 L DN-611IE is built for higher-volume heat treatment of oxygen-sensitive materials — drying, curing, annealing, and conditioning under a nitrogen (or other inert-gas) atmosphere where oxidation, discoloration, or degradation must be avoided. A continuous inert purge, metered through the built-in flowmeter (up to 30 ml/min) and injected through a rear 8 mm port, displaces chamber oxygen to roughly 2 % in about 70 minutes, while the sirocco-fan forced ventilation keeps the larger chamber uniform (±3.0 °C at 360 °C).
Why the Yamato DN-611IE is an inert oven, not a standard oven
The DN adds an inert-gas circuit and sealed forced-ventilation design that ordinary drying and fine ovens lack: material can be processed at up to 360 °C in a low-oxygen atmosphere rather than in air. The 611IE carries the same capability as the 411IE in a 223 L chamber with a larger 4.0 kW heater — the reason to choose it is batch size, not a different process window. If the process tolerates air, a standard forced-convection oven is simpler and cheaper. (See laboratory-oven-selection.)
Frequently Asked Questions
What is a mechanical inert oven, and what is the Yamato DN-611IE used for? It is a forced-ventilation oven designed to operate under a continuous inert-gas (typically nitrogen) purge, used to heat-treat oxygen-sensitive materials without oxidation, up to 360 °C.
What temperature range and stability does it offer? 40–360 °C, with ±0.2 °C temperature stability and ±3.0 °C uniformity at 360 °C.
How quickly does it displace oxygen? Approximately 70 minutes to bring chamber oxygen concentration down to about 2 %, at the rated purge flow.
How is it different from the DN-411IE? Same 360 °C inert-atmosphere design; the DN-611IE has the larger 223 L chamber (vs 95 L), a 4.0 kW heater (vs 3.0 kW), and draws 21 A (vs 16 A).
How large is the chamber and what power does it need? 223 L (620 × 600 × 600 mm internal); single-phase AC200V, 21 A (US nominal 220 V).
Does it include shelving? Yes — two shelf and shelf-bracket sets plus the instruction manual ship as standard.
Ordering & Configuration
quote-based. The DN-611IE is a capital inert oven sold through a quote. At quote we confirm the single-phase 200/220 V service and 21 A circuit, your inert-gas supply and purge requirements (gas type, regulator, flow), process temperature within 360 °C, shelving needs, and floor space for the 790 × 845 × 1080 mm, ~120 kg cabinet with gas and exhaust routing. Warranty terms are confirmed with the quote, and lead time is provided at quotation. Request a quote to configure the DN-611IE for your inert-atmosphere process.
DN mechanical inert-oven family: DN-611IE (223 L, this unit) and DN-411IE (95 L) share the same 360 °C inert-atmosphere design; choose by chamber size. When your process does not require a low-oxygen atmosphere, a DF/DH fine oven delivers the same temperatures in air at lower cost.
