The DKL-401C is the 90-liter, 115V mid-capacity oven in Yamato's economical DKL forced-convection family, the same basic, non-programmable design as the 27L 301C scaled up more than 3× for larger batches and taller labware. A 10W Sirocco forced-air fan maintains ±2.5°C temperature-distribution accuracy at 260°C across the enlarged chamber, the uniformity margin that makes forced convection the right choice over natural/gravity convection for multi-sample drying and curing. This is the 115V half of the 90L 401C/411C pair, supporting the popular 90L working volume for general lab throughput.
Key Specifications
| SKU | DKL-401C |
| Circulation | Forced air circulation (Sirocco fan, 10W) |
| Operating temp. range | Room temp. +10°C to 260°C |
| Temp. control accuracy | ±1°C (at 260°C) |
| Temp. distribution accuracy | ±2.5°C (at 260°C) |
| Temperature rise time | ~90 min (room temp → 260°C) |
| Internal capacity | 90 L |
| Internal dimensions (W×D×H) | 450 × 450 × 450 mm |
| External dimensions (W×D×H) | 560 × 600 × 820 mm |
| Heater | SUS304 pipe heater, 1.2 kW |
| Voltage / current | AC115V, 11A, 50/60Hz (with plug) |
| Weight | ~50 kg |
| Shelf steps / pitch | 9 steps / 35 mm; 2 shelf plates + 4 brackets included |
| Shelf load | 15 kg per shelf plate |
Application Profile
The DKL-401C fits general-purpose lab drying and heating at moderate batch scale (glassware and labware drying, moisture removal, curing coatings/adhesives, sterilization prep, and elevated-temperature holds up to 260°C) where the 27L chamber is too small but the 150L is more than needed. The 90L chamber with 9 shelf steps handles taller items and multiple racks. Forced convection delivers the even, repeatable heat that natural-convection ovens cannot match for filled chambers.
Design Architecture
A 10W Sirocco fan circulates air through a stainless-steel (SUS430) chamber inside glass-wool insulation and a powder-coated SPCC steel exterior. A 1.2 kW SUS304 pipe heater under SSR control is governed by PID control from a microprocessor reading a K-thermocouple. Setpoints are digital (menu + ▲/▼ keys); operation modes are Fixed temperature, Quick Auto-Stop, Auto-Stop, and Auto-Start, plus calibration offset. No programmable ramp/soak on the DKL class, step up to DKV for profiles. Standard: one 30 mm I.D. cable port (right) and two 30 mm I.D. exhaust ports (top).
Safety: self-diagnostic functions (sensor error, memory error, automatic overheat prevention, measured-temperature error), an MCB with over-current protector, and an independent hydraulic standalone overheat-prevention device. Never use in flammable/explosive atmospheres or with flammable materials.
Frequently Asked Questions
What is the chamber capacity of the DKL-401C? 90 L, with internal dimensions of 450 × 450 × 450 mm and 9 shelf steps at 35 mm pitch; it ships with 2 shelf plates rated 15 kg each.
What temperature range and uniformity does it deliver? Room temperature +10°C to 260°C, with ±1°C control accuracy and ±2.5°C temperature-distribution accuracy at 260°C.
Is it forced or natural convection? Forced air, via a 10W Sirocco fan, the even, repeatable heat that natural-convection ovens cannot match for filled chambers.
Is the DKL-401C programmable? No. It is a non-programmable oven with Fixed-temperature, Quick Auto-Stop, Auto-Stop, and Auto-Start modes. For programmable ramp/soak profiles, step up to the DKV series.
What voltage does it require? AC115V, 11A, 50/60Hz, supplied with a plug. The 220V sister model is the DKL-411C.
Ordering & Configuration
Ships with the chassis, 2 stainless-steel shelf plates and 4 brackets, and standard ports. The 90L supports the ON61C stand (Q020101002), the OD40C stacking kit (Q010101001) for space-efficient double-stacking, extra shelf sets (Q110101002), alternate cable ports (Ø25/Ø50 mm), and a seismic mat (296902).
Confirm at quote: this is the 115V, with-plug unit (choose DKL-411C for 220V); confirm capacity fit (90L vs 27L/301C vs 150L/601C), stand vs stacking-kit configuration, cable-port diameter, and lead time. Warranty per Yamato standard capital-equipment terms.
DKL forced-convection family (economical, non-programmable):
- DKL-301C / -311C: 27L
- DKL-401C / -411C. 90L (this product is the 115V 401C)
- DKL-601C / -611C: 150L
For programmable ramp/soak profiles and a color-LCD controller, see the DKV series.
