The Yamato DNF-611 is the 150 L, 220V-nominal member of the DNF energy-saving convection-oven family (brochure model DNF610), a wind-velocity-adjustable forced-circulation oven rated to 260 °C with a 10-step blower, exhaust damper, microcomputer PID control, and 32-step program operation. It is the 200 V single-phase sister of the 100V DNF-601, priced identically, for 220 V laboratories needing 150 L of adjustable-airflow dry heat to 260 °C.
Key Specifications
| SKU | DNF-611 |
| Brochure model | DNF610 (150 L, 200V) |
| Type | Wind-velocity-adjustable, forced-circulation oven (with exhaust damper) |
| Temperature control range | Room temp. +5 °C to 260 °C |
| Temperature adjustment accuracy | ±0.5 °C (at 260 °C) |
| Temperature distribution accuracy | ±2.5 °C (at 260 °C) |
| Time to reach max. temp. | Approx. 75 min |
| Capacity | 150 L |
| Internal dimensions (W×D×H) | 600 × 500 × 500 mm |
| External dimensions (W×D×H) | 730 × 696 × 910 mm |
| Heater | Stainless pipe heater, 1.5 kW |
| Blower | Sirocco fan / DC brushless motor, 10 W, 10-step wind-velocity control |
| Power supply | 200V AC single-phase, 8A, 50/60 Hz (US nominal 220V) |
| Weight | Approx. 77 kg |
| Shelves | 2 stainless punching-metal shelves (15 kg/shelf); 13 shelf-bracket steps at 30 mm |
| Controller | PID by microcomputer (VI CR3 type), K-thermocouple |
Application Profile
The 150 L DNF-611 suits mid-volume dry-heat processing to 260 °C on 220 V service:
- General and high-temperature drying. Larger sample sets and materials to 260 °C.
- Curing and heat conditioning. Coatings, adhesives, and components on defined ramp/soak profiles.
- Airflow-sensitive drying. Light or powdered samples where the 10-step fan can be dialed down.
- Moisture, gravimetric and method-development work. Dry-to-constant-weight determinations plus up to 32 program steps with auto-start / auto-stop scheduling.
The 10-step wind-velocity control plus front exhaust damper let the operator trade airflow uniformity against sample disturbance and moisture venting across the 150 L chamber. (See gravity-vs-forced-convection-oven.)
Design Architecture
The DNF-611 uses wind-velocity-adjustable forced circulation via a sirocco fan on a DC brushless motor (10 W, 10 steps) with a 1.5 kW stainless pipe heater, governed by a microcomputer PID controller (VI CR3 type) reading a K-thermocouple. A sliding-knob exhaust damper on the front controls venting. The SUS304 stainless interior and glass-wool insulation support uniform heating to 260 °C. Operation modes include fixed temperature, auto-start, auto-stop, and 32-step program operation, plus timer, clock, total-operating-hours counter, fan control, and calibration offset. A 50 mm exhaust opening is on the back surface; cable and intake ports (30 mm) are on the right surface.
Safety includes an earth-leakage breaker, an independent overheating-prevention device, a key-lock function, and self-diagnostics for sensor error, heater disconnection, triac short circuit, and automatic overheating prevention. This model is specified for 200V AC single-phase, 8 A service (US nominal 220 V). The single-phase 200 V connection should be made by a licensed contractor per the brochure.
Frequently Asked Questions
What is the DNF-611's chamber capacity? 150 L (brochure model DNF610), the 200V-nominal member of the DNF wind-velocity-adjustable convection-oven family.
What temperature range and uniformity does it deliver? Room temperature +5 °C to 260 °C, with ±0.5 °C adjustment accuracy and ±2.5 °C distribution at 260 °C.
What does "wind-velocity-adjustable" mean here? A 10-step blower plus a front sliding exhaust damper let the operator trade airflow uniformity against sample disturbance and moisture venting, useful for light or powdered samples.
How many program steps does it support? Up to 32 program steps with auto-start / auto-stop scheduling, plus fixed-temperature, auto-start and auto-stop modes.
What electrical service does it require? 200V AC single-phase, 8A, 50/60 Hz (US nominal 220V); the 100V sister is the DNF-601.
Ordering & Configuration
Standard delivery includes the oven, 2 stainless punching-metal shelves (15 kg/shelf), 4 shelf brackets, and the instruction manual. Optional stand (ON62, OT62), stacking fittings, extra shelves, and door options are available.
Confirm at quote: voltage and plug (the 220V-nominal variant maps to the brochure's 200V AC single-phase / 8 A rating, with the 100V sister being the DNF-601; confirm your 200 V single-phase service); the temperature and program profile (target ≤ 260 °C, ramp/soak steps, and airflow fan-step preference); shelving and accessories (additional shelves, stand, or stacking fittings); the 730 × 696 × 910 mm external footprint (bench/floor clearance and back-surface exhaust routing); and lead time and warranty per Yamato standard capital-equipment terms.
Request a quote to configure the DNF-611 for your 220 V mid-volume drying workflow.
DNF wind-velocity-adjustable oven family (capacity ladder): DNF400/410 (90 L) → DNF600/610 (150 L, this unit) → DNF810 (300 L) → DNF910 (540 L). The 300 L and 540 L sizes are 200 V single-phase only.
