Explosion-Proof Vacuum Drying Oven

Explosion-proof vacuum ovens, also known as explosion-proof vacuum drying cabinets, are primarily employed in military systems, nuclear industries, aerospace systems, factories affiliated with the Ministry of Machinery and military bases, civil explosives sectors, chemical industries, paint and coatings industries, research institutes, and university laboratories. They serve to dry various powders, cure surface coatings on products, facilitate detonator manufacturing drying in military enterprises, conduct ageing tests on components, and dry biomedical products.

PREV：Explosion-Proof Constant Temperature And Humidity Chamber
NEXT：Explosion-Proof Blower Drying Oven

Product Introduction
Selection Table
Industry Standards
Safety Protection
Optional Accessories

1. The electrical control system employs a combination of flameproof and intrinsically safe explosion-proof technologies. The operating switches are passive, ensuring no electrical sparks are generated during operation for safe and reliable use.

2. The temperature controller features a 4.3-inch LCD screen with a three-row digital display (showing real-time temperature, set temperature, constant temperature duration, heating status, output status, and other information on a single screen). The controller features PID self-tuning, power-on self-test, parameter memory, over-temperature alarm with automatic power cut-off, ensuring high temperature control accuracy and stable, reliable operation.

3. The explosion-proof vacuum drying oven's outer casing is constructed from cold-rolled steel plate with electrostatic powder coating. The inner chamber is entirely made of 304 stainless steel, reinforced with structural steel around the perimeter to ensure pressure resistance. The rounded corners of the working chamber facilitate cleaning.

4. The chamber door employs a double-layer construction: an outer layer of reinforced acrylic and an inner layer of thickened tempered glass. The door seal utilises a high-temperature resistant silicone rubber O-ring, offering excellent ageing resistance, corrosion resistance, and sealing performance.

5. The insulation layer is filled with 120-count ultra-fine ceramic fibre wool, providing superior thermal retention.

6. Heating elements are positioned externally around the chamber walls for uniform heating. The control panel is located at the top (benchtop models) or mid-section (upright models), housing a temperature controller, vacuum gauge, pressure relief valve, manual vacuum valve, and intrinsically safe power switch;

7. Pressure lines utilise stainless steel bellows with KF25/KF40 connectors for convenient adaptability and ease of operation. Valves are constructed from copper;

8. Vacuum gauge employs a pointer-type medical-grade vacuum gauge, offering precise readings and sensitive pressure control (intrinsically safe, accuracy class 2.5);

9. Front manual single door with a manually operated cam eccentric locking mechanism, featuring adjustable tension;

10. Grid-style shelves with adjustable height for efficient internal space utilisation;

11. Standard inert gas interface permits filling during operation to prevent hazards;

12. Complies with IIB standard for use in hazardous locations with explosive gas mixtures of temperature classes T4, T5, T6. Explosion-proof rating: IIB T4. Certified by the ********* Electrical Safety Quality Inspection and Testing Centre with ********* Explosion-Proof Certification;

13. Optional 485 communication interface or USB interface (select one), enabling temperature and time recording via computer and printer for robust data storage and playback during testing (optional);

Benchtop Explosion-Proof Vacuum Oven

Model	VO-602EX	VO-6030EX	VO-6050EX	VO-6090EX	VO-6160EX	VO-6210EX	VO-625EX	VO-6500EX
Explosion-proof rating	IIBT4
Electrical explosion-proof	Combined type (flameproof, intrinsically safe)
Instrument explosion-proof	Combined type (flameproof, intrinsically safe)
Controller	LCD display (three-row digital readout: set temperature, real-time temperature, constant temperature duration)
Sensor explosion-proof	Safety barrier isolation
Temperature range	RT+10~250°C
Temperature fluctuation	≤±0.5°C
Temperature resolution	0.1°C
Achievable vacuum level	≤100 Pa
Observation window	Inner layer: thickened tempered glass; Outer layer: high-transparency acrylic
Vacuum gauge	Dial-type (medical grade, accuracy class 2.5)
Interface diameter	Outer diameter: 10mm
Circulation method	Radiation/natural convection circulation
Timing range	1–9999 minutes
Operating mode	Constant value operation Timed operation
Additional functions	Power failure memory Sensor deviation correction Self-tuning Internal parameter lock
Power supply voltage	AC220V/50Hz							AC380V/50Hz
Inner chamber dimensions (mm)	300x300r275	320π320π300	410x370x345	450z450z450	500500600	560r600z640	600z600π700	630810π845
Overall dimensions (mm)	480x500x750	500z520π780	550z570xB20	600x650x950	650x750x1100	720:800x1150	760xB00x1200	790x1010x1350
Volume	25L	31L	52L	91L	150L	215L	252L	431L
Standard shelves	1		2			3
Gross/net weight (kg)	75/65	86/76	108/97	143/131	190/172	223/208	255/235	445/415
Rated power	0.5kw	0.8kw	1.2kw	2kw	2.4kw	3kw	4ky	6kw

Vertical Explosion-Proof Drying Oven

Model	VO-6020EX	VO-603CEX	VO-6050EX	VO-6090EX	VO-6160EX	VO-6210EX	VO-6250EX	VO-6500EX
Explosion-proof rating	IIBT4
Electrical Explosion Protection	Combined type (flame-proof, intrinsically safe)
Instrument Explosion Protection	Combined type (flame-proof, intrinsically safe)
Sensor Explosion Protection	Safety barrier isolation
Controller	LCD display (three-row digital readout: set temperature, real-time temperature, constant temperature duration)
Temperature Range	RT+10~250°C
Temperature Fluctuation	≤±0.5°C
Temperature Resolution	0.1°C
Achievable Vacuum Level	≤100Pa
Observation Window	Inner layer: thickened tempered glass; Outer layer: high-transparency acrylic
Vacuum Gauge	Dial gauge (medical grade, intrinsically safe, accuracy class 2.5)
Vacuum Pump Explosion Protection	Explosion-proof type
Circulation Method	Radiant/natural convection circulation
Power Supply Voltage	AC380V/50Hz
Timing Range	1–9999 min
Operating Mode	Constant value operation Timed operation
Additional Functions	Power failure memory Sensor deviation correction Self-calibration Internal parameter lock
Pumping Speed	2L/S				4L/S			6L/S
Internal Chamber (mm)	300nr300r275	320x320x300	410x:370x345	450z450z450	500x:500*600	560r640z600	600x6D0nr700	630πB10z845
External Dimensions (mm)	480x500:1200	500x520x1230	550x570x1270	600x650x1400	650x700*1500	720z800x1600	760x800x1650	790x1010x1800
Volume	25L	31L	52L	91L	150L	215L	252L	430L
Standard Shelves	1		2			3
Gross/Net Weight (kg)	108/98	120/110	142/131	179/164	235/215	268/252	295/278	495/452
Rated Power	1.1kw	1.2kw	1.6kw	2.4w	3.05kw	3.55kw	4.55kw	7.2kw

1. GB/T3836.1-2021 Explosive Atmospheres - Part 1: General Requirements

2. GB/T3836.2-2021 Explosive Atmospheres - Part 2: Flameproof Enclosures ‘d’

3. GB/T3836.4-2021 Explosive Atmospheres - Part 4: Intrinsically Safe ‘ib’

4. The product complies with Class IIB standards and is suitable for hazardous locations with explosive gas mixtures of temperature class T4. It has been certified as compliant by the ********* Explosion-Proof Electrical Equipment Quality Inspection and Testing Centre, which has issued an explosion-proof qualification certificate.

5. Explosion-proof marking: Ex d bib IIBT4 Gb

1. Over-temperature alarm
2. Rapid fuse
3. Earth leakage protection
4. Earth leakage circuit breaker

1. Intelligent programmable controller (30 segments)
2. Independent temperature limiter
3. Test holes 25mm/50mm

Shanghai Dengsheng Instrument Manufacturing Co., Ltd

Shanghai Dengsheng Instrument Manufacturing Co., Ltd. is a high-tech enterprise integrating R&D, production, sales, and service. We specialize in the manufacture of high-end laboratory equipment, including ovens, incubators, industrial furnaces, and environmental test chambers.

We boast an 8,000-square-meter modern production facility, a dedicated R&D team, 23 national patents, and ISO-9001 quality management system certification. Our solutions are widely used in cutting-edge fields such as aerospace, semiconductors, biomedicine, automotive, and new materials. We have established in-depth partnerships with top universities and industry leaders, and our products are exported to many countries and regions around the world.

Adhering to the principles of "Integrity, Innovation, and Win-Win," we are committed to becoming your trusted partner with reliable quality and dedicated service.