Electric Heating Blower Constant Temperature Drying Oven

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

An electric thermal drum dryer is a laboratory and industrial drying device that heats material using heating elements and circulates air evenly inside the chamber with a circulating fan. This design enables rapid, 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, timer function, temperature limit alarm, PID self-tuning

Material Features Stainless steel inner lid, steel enclosure with spray coating, double-glazed glass observation window

Safety Features Independent temperature limit alarm, fan stop protection, over-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 may reach 500°C, 800°C, or 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 2kW ~ 4.5kW (depending on model)

Carrier Two pieces (standard; each carrier supports approximately 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

Enclosure High-quality steel plate with spray treatment; rust-proof and aesthetically finished

Observation windows Large-area double-glazed windows

Insulation layer Ultrafine glass fiber filling

Wind turbine system Imported high-temperature turbines (original) + 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, over-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 tests, moisture-proof storage 50°C – 150°C

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

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

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

Biological Experiments 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 cable is intact and that grounding is reliable.

Ensure the chamber (inside and outside) is clean and free of impurities around the heating element.

Check that seals are intact and that the door can be closed completely.

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

6.2 Standard operating procedures

Turn on the power and switch on the power switch.

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

Turn on the drum switch to promote air circulation.

Load the material evenly to prevent excessive accumulation.

Monitor the process through the observation window during operation.

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

6.3 ⚠️ Important safety warnings

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Prohibited Items   Description

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.

Do not operate unattended; perform regular inspections during operation.

Do not open the door at high temperatures. Avoid opening the door during high-temperature operation.

VII. Selection Recommendations

Select the temperature range based on the material characteristics: thermally sensitive materials should use a low-temperature type (< 100°C); ordinary materials typically use 200°C.

Select the chamber volume according to the load: consider the load carrier shape, size, and quantity.

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

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

Provide spare clearance for heat dissipation: keep at least 30 cm of clearance from the wall around and at the rear of the chamber.

VIII. Maintenance and Care

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

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

Replace aging or damaged sealing strips in a timely manner.

If the equipment will be discontinued for a long period, disconnect the power, dry the chamber, and periodically apply power to dehumidify.