Electric Heating Blower Constant Temperature Drying Oven

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

An electric thermal drum dryer is a chamber-type unit that generates heat using heating elements and circulates air evenly throughout the working chamber via 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, 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, turbine stop protection, over-temperature protection (ultra high temperature)

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 (for some models: up to 500°C, 800°C, 1200°C)

Temperature Fluctuation ± 1°C (precision model: up to ± 0.1°C) [Reference/typical]

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)

Two carrier trays (standard; each tray 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℃~250℃

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

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

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

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

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

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IV. Structures and Materials

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Item   Material / Design

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

Enclosure Spray-treated high-quality steel plate—rust-proof and aesthetically finished

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 test, 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 that the power cord/line is intact and that the grounding is reliable.

Ensure the chamber interior and the exterior are clean, and that there are no impurities around the heating element.

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

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 main 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 over-thick accumulation).

Monitor operation status through the observation window.

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

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 explosion risk.

Volatile chemicals are strictly prohibited.

Excessive loading/operation is not allowed. It is strictly forbidden to set a temperature higher than the unit’s rated maximum temperature.

Unattended operation is not allowed. Perform regular checks/patrols during operation.

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

VII. Selection Recommendations

Select the temperature range according to material characteristics: thermally sensitive materials require a low-temperature type (< 100°C); general materials can use a 200°C type.

Select the chamber volume based on the load: consider the shape/size of the items and the number of carrier trays.

Select the controller based on precision requirements: a display-type controller is suitable for general experiments, while an intelligent program controller is recommended for precision experiments.

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

Reserve clearance for heat dissipation: keep at least 30 cm from the wall on the surrounding and rear sides of the chamber.

VIII. Maintenance

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

Regularly inspect heating components and verify turbine operation.

Worn or damaged sealing strips must be replaced in a timely manner.

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