The Yamato DX-312C is the 220 V, 28 L bench-top model of the DX natural-convection drying-oven family, a constant-temperature gravity-convection oven with a maximum control range of 40–300 °C. Mechanically identical to the 115 V DX-302C, the Yamato DX-312C serves labs on 220 V single-phase service that need gentle gravity airflow rather than forced convection for routine drying and curing. It is the entry-capacity unit in a family that scales to 153 L.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato DX-312C (brochure model DX302, 220 V variant) |
| Type | Natural-convection constant-temperature drying oven |
| Temperature control range | 40–300 °C |
| Temperature control accuracy | ±1 °C (at 300 °C, exhaust port fully open) |
| Temperature distribution accuracy | ±10 °C (at 300 °C, exhaust port fully open) |
| Temperature rise time | Approx. 45 min (ambient to 300 °C) |
| Exhaust port | Rotating damper, avg. 20 % opening when closed |
| Heater | Iron-chrome heater, 0.9 kW |
| Control system | PID heater control by microcomputer |
| Setting method | Digital, up/down keys |
| Operation modes | Fixed temperature, quick auto-stop, auto-stop, auto-start |
| Sensor | K-thermocouple |
| Internal dimensions (W×D×H) | 300 × 310 × 300 mm |
| External dimensions (W×D×H) | 400 × 440 × 630 mm |
| Chamber volume | 28 L |
| Weight | Approx. 23 kg |
| Power supply | 220 V, 50/60 Hz (export variant of the 100 V base model) |
| Included | 2 shelves (15 kg/shelf load), instruction manual, warranty card |
Application Profile
The 28 L DX-312C handles everyday bench-scale dry-heat work — glassware drying, sample and media drying, coating and adhesive curing, and dry-to-constant-weight gravimetric preparation below 300 °C. Because it moves air by natural convection rather than a fan, it disturbs light samples and powders less than a forced-convection oven and produces fewer airborne particulates, an advantage in cleanliness-sensitive drying.
Why the Yamato DX-312C fits gravity-convection work
The rotating exhaust damper lets the operator trade uniformity for moisture removal: closed for a stable, well-distributed soak, opened to vent evolved moisture. Gravity convection trades some temperature uniformity (±10 °C at 300 °C) and slower recovery for gentler airflow, so the DX family suits work where low air motion matters. Where tighter uniformity is required, a forced-convection oven is the better choice. (See the gravity-vs-forced-convection-oven guide.)
Frequently Asked Questions
What temperature range does the Yamato DX-312C reach? Its control range is 40–300 °C, with ±1 °C control accuracy at 300 °C (exhaust port fully open).
How is the DX-312C different from the DX-302C? They are the same 28 L oven; the DX-312C is the 220 V version and the DX-302C is the 115 V-nominal (100 V AC) version.
Is this a forced-air (fan) oven? No. The DX-312C is a natural-convection (gravity) oven — heat circulates without a fan, and moisture is vented through a rotating exhaust damper.
How large is the chamber? The chamber is 28 L (300 × 310 × 300 mm internal), shipping with two shelves rated 15 kg each.
How long does it take to heat up? Approximately 45 minutes from ambient to 300 °C.
Ordering & Configuration
quote-based. The DX-312C is a capital drying oven sold through a quote. At quote we confirm your 220 V single-phase service and connection, target soak temperature (≤ 300 °C), shelf count and loading, and the 400 × 440 × 630 mm bench footprint with exhaust routing. Warranty terms are confirmed with the quote, and lead time is provided at quotation. Request a quote to configure the DX-312C for your drying or curing workflow.
DX natural-convection family (capacity ladder): DX-302C/312C (28 L, this unit) → DX-402C/412C (74 L) → DX-602C/612C (153 L). Choose the DX line for gentle gravity-convection drying; step up to the programmable DVS series for multi-step ramp/soak recipes, or to a forced-convection oven when tighter uniformity matters.
