'/%3E%3C/svg%3E){kind=small}
COLO.Science · Heating & Thermal Processing · Laboratory Drying Oven
DRYSCN Benchtop Natural Convection Drying Oven · LED Controller · 43 to 225 L · up to 250 °C
The DRYSCN natural convection drying oven dries, heats and sterilises glassware and samples from 10 °C above room temperature up to 250 °C. There is no fan: the warm air rises by itself, so powders and light samples are not disturbed, and a PID controller with LED display holds the set temperature. Four sizes share the same functions: 43 L (PRO3121), 71 L (PRO3123), 136 L (PRO3139) and 225 L (PRO3140).
Drying ovens · choose the series
DRYSA18Dry sterilizer18 L · no fan · LED
DRYSCBenchtop, with fan43–225 L · low, wide housing · LED
DRYSANatural convection30–125 L · no fan · LED
DRYSBNatural convection, LCD30–125 L · temperature limiter
DRYSDWith fan30–625 L · faster drying · LED
DRYSEWith fan, LCD30–230 L · adjustable fanAll drying ovens →DRYSCN benchtop drying oven: models and order codes
| Model | Order code | Chamber volume | Inner chamber W × D × H | Exterior W × D × H | Heating power |
|---|---|---|---|---|---|
| DRYSCN43 | PRO3121 | 43 L | 350 × 350 × 350 mm | 652 × 472 × 587 mm | 1.2 kW |
| DRYSCN71 | PRO3123 | 71 L | 450 × 350 × 450 mm | 752 × 472 × 687 mm | 1.6 kW |
| DRYSCN136 | PRO3139 | 136 L | 550 × 450 × 550 mm | 852 × 572 × 786 mm | 2.3 kW |
| DRYSCN225 | PRO3140 | 225 L | 600 × 500 × 750 mm | 902 × 622 × 986 mm | 3.0 kW |
Every DRYSCN benchtop drying oven has the same controller; the four sizes differ in chamber size and heating power. Not sure which size you need? Send us what you dry and how much per run, and we will propose the model.
Natural convection drying oven with LED controller and timer
In the DRYSCN natural convection drying oven the warm air rises from the heater through the chamber by itself. There is no fan, so the oven is quiet and does not disturb powders and light samples. The housing is low and wide: it fits on a laboratory bench and takes wide trays and long glassware. The LED display shows the measured temperature and the setpoint. The timer runs from 0 to 9999 minutes.
Key features
- Temperature RT+10 °C to 250 °C, resolution 0.1 °C
- Natural convection, no fan
- PID controller with LED display and timer 0–9999 min
- Over-temperature sound and light alarm
- Chamber of galvanically protected steel, 2 shelves supplied; stainless steel on request
Suitable for
- Drying glassware, powders, soil, food and other samples
- A benchtop drying oven for drying to constant mass, for example at 105 °C
- Hot-air sterilisation of glass and metal items
- Heat treatment, ageing and curing tests up to 250 °C
Natural convection or forced air?
Without a fan the air moves slowly, so light powders stay in place and the samples are not dried out by an air stream. A natural convection drying oven is also quiet and simple. It suits glassware, small series and samples that must not be disturbed. The oven needs no special installation: a level bench and an earthed socket are enough.
With a full chamber or wet loads a fan heats and dries faster and more evenly; for that see the DRYSC series or the laboratory drying ovens overview .
Technical specifications
Temperature and control
| Air circulation | natural convection, no fan |
| Temperature range | RT+10 °C to 250 °C |
| Resolution | 0.1 °C |
| Temperature fluctuation | ±1 °C |
| Temperature uniformity | ±2.5 % |
| Control | PID controller, LED display |
| Timer | 0–9999 min |
| Sensor | Pt100 |
Chamber, housing and supply
| Chamber | galvanically protected steel; stainless steel on request |
| Housing | cold-rolled steel, powder-coated |
| Shelves | 2 supplied; 15 kg per shelf |
| Exhaust port | Ø 28 mm on top, also usable as a test hole |
| Protection | over-temperature sound and light alarm |
| Supply | 220 V, 50/60 Hz; 110 V on request |
| Insulation | silicate insulation board |
The setpoint must be at least 10 °C above room temperature.
Operating functions
PID controller with LED display
The PID controller holds the set temperature and corrects itself by self-tuning. Settings are kept after a power cut, and the parameters can be locked.
Timer and protection
Set the timer from 0 to 9999 minutes; the oven stops heating at the end of the set time. Over-temperature protection is built in. Do not dry flammable, explosive or solvent-containing materials.
Sizes
The benchtop drying oven is available in four chamber sizes, 43, 71, 136 and 225 L, with the same functions. Two shelves are supplied with every oven and further shelves can be ordered. Shelf positions are 25 mm apart.
Construction, installation and care
The chamber is galvanically protected steel and the housing is powder-coated cold-rolled steel. Place the oven level on a bench, with free space around it and above the exhaust port, and connect it to an earthed socket. Clean it cold, with neutral detergent and a dry cloth; do not use acids or alkalis.
Standard delivery
- DRYSCN benchtop drying oven in the chosen size, with 2 shelves.
The configuration for a specific order is the one confirmed in the COLO.Science quotation.
Technical documents and knowledge base
DRYSCN technical specification (PDF) — all four sizes, specifications and configuration checklist. Methods and applications are explained in our knowledge base.
Drying oven series compared
COLO.Science drying ovens differ in air circulation, controller, maximum temperature and size. The DRYSCN benchtop drying oven is the low, wide model without a fan, for wide trays and bench work up to 250 °C.
| Series | Air circulation | Controller | Max. temperature | Chamber volume |
|---|---|---|---|---|
| DRYSA18 | natural convection | LED | 300 °C | 18 L |
| DRYSA | natural convection | LED | 300 °C | 30–125 L |
| DRYSB | natural convection | LCD, temperature limiter | 300 °C | 30–125 L |
| DRYSD | forced air | LED | 300 °C | 30–625 L |
| DRYSE | forced air | LCD, adjustable fan, temperature limiter | 300 °C | 30–230 L |
| DRYSC | forced air, low, wide housing | LED | 250 °C | 43–225 L |
| DRYSCN (this page) | natural convection, low, wide housing | LED | 250 °C | 43–225 L |
| DRYBF | forced air | LED | 250–300 °C | 640–3070 L |
Vacuum drying ovens: DRYVA, DRYVE and DRYVH series, 25 to 215 L.
How to choose
- 43–71 L — bench-top ovens for glassware and small sample series.
- 136 L — daily drying in a routine laboratory.
- 225 L — the largest chamber of the series, for larger loads.
- With fan — the DRYSC series has the same sizes with a fan.
- Another controller or a vacuum oven? See the laboratory drying ovens overview .
Configuration note
To choose a benchtop drying oven, tell us what you dry, the load per run and your working temperature. COLO.Science will confirm the model in the quotation.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
