The Yamato DNF-301-220V is a 27 L programmable forced-convection oven with Yamato's "2-in-1" system — it switches between forced and natural convection in one unit — plus a variable-air-velocity and damper design that cuts power use. It controls to 260 °C with a 99-step program and ships as the 220V configuration with an external transformer; the 115V sibling is the DNF301-115V.
Key Specifications
| SKU | DNF-301-220V |
| Base model | Yamato DNF301 (energy-saving programmable oven) |
| Circulation | Forced convection + natural convection (switchable) |
| Temperature control range | RT +25 to 120 °C (air velocity 0); RT +15 to 260 °C (air velocity 1–10) |
| Temp. control accuracy | ±0.3 °C at 260 °C (forced convection) |
| Air-velocity control | 10 steps (600–1500 rpm) + velocity 0, with adjustable damper |
| Heater | Stainless-steel tube, 0.8 kW |
| Program | Up to 99 steps / 99 patterns with repeat, auto start/stop |
| Controller | PID Z control, fluorescent display, calibration offset |
| Internal dimensions | 300 × 300 × 300 mm |
| External dimensions | 430 × 495 × 740 mm |
| Capacity | 27 L |
| Shelves | 2 plates / 4 brackets; 15 kg/shelf; 6 steps, 30 mm pitch |
| Weight | ~50 kg |
| Voltage / power | 220V, 50/60 Hz single phase, no plug — supplied with external transformer |
Application Profile
Most benchtop ovens force you to choose forced convection (fast, uniform) or natural convection (gentle, low-disturbance) at purchase. The Yamato DNF-301-220V does both: a manual switch reroutes airflow between forced and natural modes, so the same 27 L chamber handles rapid drying, curing, and heat treatment as well as slow, low-agitation work like settling or delicate powders. Forced mode holds ±0.3 °C at 260 °C, giving the temperature uniformity demanded by materials and QC labs.
The energy-saving story is real engineering, not marketing: 10-step variable air velocity, an adjustable front damper, and program control let you run only the airflow and heat a process needs. The controller continuously logs accumulated power consumption, CO₂, and heater output, and a 99-step program automates multi-stage ramps. As the 220V model it includes the external transformer required for 220V mains.
Frequently Asked Questions
What temperature does the Yamato DNF-301-220V reach? Up to 260 °C in forced-convection mode (air velocity 1–10), or up to 120 °C in the natural-convection/quiet mode.
What does "2-in-1" convection mean? The oven switches between forced and natural convection in one chamber — fast uniform drying when you want it, gentle low-disturbance heating when you don't.
Why is there an external transformer? This is the 220V variant; Yamato supplies it with an external transformer so it runs on 220 V single-phase mains. For 115V supply, order the DNF301-115V.
How uniform is the temperature? Forced convection holds ±0.3 °C control accuracy at 260 °C, with a 10-step air-velocity system and damper to tune uniformity vs. exhaust.
How large is the chamber? 27 L (300 × 300 × 300 mm internal) with two shelves rated 15 kg each.
Ordering & Configuration
Confirm at quote: supply voltage (this is 220V with transformer), airflow/program needs, and any stand or stacking accessories.
Warranty: Per Yamato standard capital-equipment terms — confirm coverage at quote.
Add the DNF-301-220V to a quote to lock voltage and lead time; it ships with two shelves, brackets, and the external transformer.
Yamato DNF energy-saving ovens:
- DNF-301-220V (this product) — 27 L, forced+natural, 220V with transformer
- DNF301-115V — same 27 L class, 115V supply
Move up to DNF401/601 (90–150 L) for larger loads with the same 2-in-1 convection and program control.
