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 through the box for rapid, uniform drying. Suitable for scientific research, industry, medical and other applications, it supports drying, baking, sterilization, and temperature testing.

An electric thermal drum dryer is a heating device that generates heat through heating elements and circulates air evenly inside the chamber using a circulating fan. This design enables 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, powder-coated steel enclosure, double-glazed glass observation window

Safety Features Independent temperature limit alarm, turbine 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 reach up to 500 °C, 800 °C or 1200 °C)

Temperature Fluctuation ± 1 °C (reference/typical: ± 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 Quantity 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

Case 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

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 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 whether the power line is intact and whether grounding is reliable.

Make sure the chamber interior is clean and free of impurities around the heating element.

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

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

6.2 Standard Operating Procedures

Switch on the power and turn 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 (spread evenly to avoid excessive thickness and uneven drying).

Monitor the process state through the observation window during operation.

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

6.3 ⚠️ Important Security Warnings

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Prohibited Items Explanation

Flammable and explosive items must not be placed in the drying chamber for heating to avoid the risk of explosion.

Volatile chemicals are strictly prohibited.

Excessive operation: it is strictly forbidden to set a temperature higher than the device’s rated maximum temperature.

Unattended operation: regular monitoring/patrols should be conducted during operation.

Do not open the door at high temperatures. Try to avoid opening the door while the chamber is hot.

VII. Selection Recommendations

Choose the temperature range based on material characteristics: for heat-sensitive materials, select a low-temperature type (< 100 °C); for ordinary materials, select a 200 °C type.

Select the working volume according to the load: consider the shape, size and number of load carriers.

Choose the controller based on precision requirements: a display type for general experiments, and an intelligent program type for precision experiments.

Select materials based on the operating environment: in corrosion-prone environments, stainless steel casings are recommended.

Reserve clearance space for heat dissipation: keep at least 30 cm clearance 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 check the heating components and verify the operation of the turbines.

Seal strips that are old or damaged should be replaced promptly.

When the equipment is discontinued for long-term use, disconnect power, dry the chamber, and periodically switch on the power to dehumidify.