Electric Heating Blower Constant Temperature Drying Oven

An electric thermal drum dryer uses heating elements to generate heat and a circulating fan to evenly distribute air throughout the box for rapid, uniform drying. It is widely used in scientific research, industry, medical and other applications for drying, baking, sterilization, and temperature testing.

An electric thermal drum dryer is a device that generates heat using heating elements and circulates air evenly inside the chamber via a circulating fan. This ensures rapid and uniform drying. It is widely used in scientific research, industry, medical applications, and other fields for drying, baking, sterilization, and temperature testing.

Category Keywords

Type of Equipment Electrothermal Drum Dryer; Electrothermal Constant-Temperature Drum Dryer; Precision Dryer; High-Temperature Oven

Core Functions Drying; baking; sterilization; temperature testing; heat treatment; dehydration drying

Technical Features Hot-air circulation; intelligent temperature control; timing function; temperature-limit alarm; PID self-tuning

Material Features Stainless-steel inner lid; spray-treated steel enclosure; double-glazed glass observation window

Safety Features Independent temperature-limit alarm; fan stop protection; ultra-high temperature protection

III. Main Technical Parameters

3.1 General Technical Parameters

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Parameter Item   Specifications Range

Temperature Range RT + 10°C ~ 200°C / 300°C (some models up to 500°C, 800°C, 1200°C)

Temperature Fluctuation ± 1°C (up to ± 0.1°C for the precision model)

Temperature Uniformity ± 2°C

Temperature Resolution 0.1°C

Timing Range 1 ~ 9999 minutes

Supply Voltage AC 220V / 50Hz (380V for some high-power models)

Heating Power 2 kW ~ 4.5 kW (depending on model)

Two carrier pieces (standard), each bearing approx. 15 kg

3.2 Common Model Specifications (Units: mm)

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Model   Internal Size   External Size   Temperature Range

DHG-9030A 340×325×325 625×510×490 RT+10°C~250°C

DHG-9070AD 450×400×450 740×580×630 RT+10°C~250°C

DHG-9140AD 550×450×550 830×650×730 RT+10°C~250°C

DHG-9240AD 600×550×650 880×770×930 RT+10°C~250°C

KLG-9020A 300×300×300 410×400×640 RT+10°C~200°C

KLG-9070A 410×410×410 525×520×750 RT+10°C~200°C

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IV. Structures and Materials

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Place   Material / Design

Inner tank Mirror stainless steel (SUS304) argon-arc welding, or zinc plating

Case High-quality steel plate, spray-treated for rust resistance and improved appearance

Observation windows Large-area double glazing

Insulation layer Ultrafine glass fiber filling

Air turbine system Imported original high-temperature turbines + optimized wind-tunnel design

Control system Smart LCD program controller (optional: 10–30 programming steps)

Safety protection Independent temperature-limit alarm system; fan stop switch; ultra-high temperature protection

V. Application Areas

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Industry Application Scenario   Typical Temperature

Scientific / Laboratory Sample drying, sterilization, temperature testing   60°C – 200°C

Electronics / Semiconductors Component drying, aging testing, moisture-proof storage   50°C – 150°C

Chemical / New Materials Raw material drying, curing, heat treatment   80°C – 300°C

Food / Medicine Dehydrated drying, medicinal drying, food processing   40°C – 120°C

Hardware / Electroplating Workpiece drying, oil treatment, surface treatment   100°C – 250°C

Biological Experiment DNA sample drying, dish sterilization   60°C – 120°C

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VI. Operational Highlights and Precautions

6.1 Pre-use Preparation

Check that the power line is intact and that grounding is reliable.

Ensure the chamber is clean inside and outside, and that there are no impurities around the heating element.

Check that the seals are intact and that the door can close fully.

Place the equipment on a flat, well-ventilated surface, away from flammable and explosive materials.

6.2 Standard Operating Procedures

Turn on the power, then switch on the power switch.

Set the operating temperature (the initial temperature should not be too high).

Turn on the drum switch to promote air circulation.

Load the material evenly to prevent overly thick accumulation.

Monitor operation through the observation window.

After drying is complete, turn off the heating and wait until the temperature drops below 60°C before removing the contents.

6.3 ⚠️ Important Safety Warnings

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Prohibited Items / Explanation

Do not place flammable or explosive items in the drying chamber for heating to avoid the risk of explosion.

Volatile chemicals are strictly prohibited.

Do not exceed the rated maximum temperature of the device.

Unattended operation is prohibited. Perform regular inspections during operation.

Do not open the door at high temperatures. Avoid opening the door when the chamber temperature is high.

VII. Selection Recommendations

Select the temperature range according to the material characteristics: for heat-sensitive materials, choose a low-temperature type (<100°C); for general materials, choose 200°C.

Select the chamber volume according to the load: consider the shape and size of the items as well as the number of carrier loads.

Select the controller based on precision requirements: display-type controllers for general experiments; intelligent program controllers for precision experiments.

Select materials based on the operating environment: for corrosive environments, stainless-steel casings are recommended.

Provide spare clearance: leave no less than 30 cm from the wall at the surrounding and rear sides of the chamber.

VIII. Maintenance

Clean the interior after each use until the chamber is completely cooled.

Regularly inspect the heating components and the operation of the turbines.

Replace worn or damaged sealing strips in a timely manner.

If the unit is discontinued for long-term use, disconnect the power, dry the chamber, and periodically turn on the power to dehumidify.