Forced / Natural Convection Oven Programmable Energy Saving 90L Overview
The Forced / Natural Convection Oven Programmable Energy Saving 90L (DNF401) from Yamato Scientific is a 90-liter constant-temperature convection oven operating from ambient +15°C up to 260°C. Two circulation modes — forced and natural convection — live in one chamber, and a power-saving program cuts energy draw during long holds. LabSupplies.com is an authorized dealer.
Chamber insulation and heat tightness hold temperature stably across the working range. An interior stainless steel plate resists corrosion, while the exterior uses chrome-free electrogalvanized carbon steel sheet coated with a chemical-proof baking finish. Dust tightness keeps particulate out of the chamber during sensitive runs.
Order the DNF401 for 115V service or the DNF411 for 220V service. Each unit measures 36 × 36 × 44 in and weighs 235 lb. Manufactured in Japan, the oven is backed by Yamato's ISO 9001:2015 and ISO 14001:2015 quality and environmental certifications.
Key Features
- Dual circulation: forced and natural convection modes are selectable in a single unit for different sample and workflow needs.
- Energy-saving program: programmed operation reduces power consumption significantly during extended cycles.
- 99-step programming: repeat operation, auto start, auto stop, and quick auto stop functions support unattended runs.
- Adjustable air velocity: digital controller sets airflow across 10 stages to tune drying and uniformity.
- Front damper control: an adjustable damper position optimizes exhaust and chamber conditions.
- Fluorescent display: interactive input and a calibration off-set function simplify setup and verification.
How to Choose the Right Convection Oven
Matching a convection oven to your lab depends on sample throughput, target temperature, and your facility's electrical service. Use these axes to confirm the DNF401 fits your application before ordering.
- Capacity: a 90 L chamber suits mid-volume drying, curing, and baking; size it to your largest typical batch plus headroom for airflow.
- Temperature range: ambient +15 to 260°C covers most drying and heat-treatment protocols; verify your method's setpoint sits inside this band.
- Circulation type: forced convection speeds uniform drying, while natural convection protects light or powdery samples from disturbance — having both adds flexibility.
- Voltage: select DNF401 for 115V or DNF411 for 220V to match the receptacle and breaker at your bench.
- Footprint: confirm the 36 × 36 × 44 in dimensions and 235 lb weight fit your bench or floor space and load rating.
- Control type: programmable 99-step operation matters when you need repeatable multi-stage cycles or unattended overnight runs.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 90 L |
| Max Temperature | 260°C |
| Voltage | 115V |
| Temperature Control System | PID control by microcomputer |
| Sensor | K-thermocouple |
| Interior Material | Stainless steel |
| Special Features | Ecological energy-saving design |
| Circulation Method | Forced + natural convection |
| Operating Temperature Range | ambient +15 to 260°C *1 |
| Material | Chrome free electrogalvanized carbon steel sheet coated w/ chemical-proof baking finish (exterior) Stainless steel plate (interior) |
| Country of Origin | Japan |
| GTIN (Barcode) | 797059926619 |
| Shipping Weight | 235 lbs |
| Dimensions (L × W × H) | 36 × 36 × 44 in |
| Component Size | 90 L |
*1 No-load operation of bath only; maximum temperature varies with circumstances and operating conditions.
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| DNF-401 | 115V | EA |
| DNF-411 | 220V | EA |
Documentation
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Why Buy From LabSupplies.com
LabSupplies.com ships the DNF401 and DNF411 as genuine Yamato Scientific units backed by the manufacturer warranty. Order directly online and reach our lab-equipment specialists with any specification question.
- Authorized Yamato Scientific dealer: every unit is genuine and covered by the manufacturer warranty.
- In stock: ready to order now, no waitlist.
- Ships from USA inventory: domestic fulfillment for faster delivery.
- Specialist support: dedicated lab-equipment experts answer spec and configuration questions.
Frequently Asked Questions
What temperature range does the DNF401 convection oven reach?
The DNF401 operates from ambient +15°C up to a maximum of 260°C. This range covers standard laboratory drying, curing, and heat-treatment protocols.
What is the chamber capacity and footprint of this oven?
The chamber holds 90 liters. The unit measures 36 × 36 × 44 inches (L × W × H) and weighs 235 lb, so confirm your bench or floor space and load rating before installation.
What is the difference between the DNF401 and DNF411?
Voltage is the only difference: the DNF401 runs on 115V and the DNF411 runs on 220V. Both share the same 90 L capacity, 260°C maximum temperature, and feature set — choose the model matching your facility's electrical service.
What materials are used in the oven chamber?
The interior uses a stainless steel plate for corrosion resistance. The exterior is chrome-free electrogalvanized carbon steel sheet coated with a chemical-proof baking finish.
Does this oven offer both forced and natural convection?
Yes. Both forced and natural convection modes are built into the single unit, letting you select rapid uniform drying or gentle airflow for light and powdery samples.
Can the oven run programmed, unattended cycles?
Yes. It supports 99-step program operation with repeat operation, auto start, auto stop, and quick auto stop functions, plus 10-stage digital air-velocity control for repeatable multi-stage runs.