2025/11/27
With a deep commitment to the global market, Shanghai Dengsheng Instrument has earned international acclaim for its quality.






Explosion-proof fans are specialized ventilation equipment designed for hazardous environments containing flammable and explosive gases, vapors, or dust. By continuously supplying fresh air or forcibly exhausting air, they effectively dilute and remove accumulated flammable and explosive gases, vapors, or dust from the site, keeping their concentration below the lower explosive limit. They can also dilute and remove toxic and harmful gases, maintaining environmental safety.
① Complies with the national GBT 3836.1-2021 explosion-proof standard, featuring a dual-core explosion-proof system combining flameproof and intrinsically safe designs. Key components utilize spark-free design for proactive safety, completely mitigating risks from the energy source and creating a safe production environment;
② Equipped with cutting-edge explosion-proof technology, certified to national IIBT4, IICT4, and IIICT130℃ stringent standards. The advanced explosion-proof system can handle various complex and high-risk gas conditions, ensuring stable and safe operation in diverse hazardous gas environments;
③ The fan body and key components widely utilize high-strength aluminum alloy and special steel materials. These materials not only possess excellent lightweight and corrosion-resistant properties but also effectively suppress static electricity accumulation and withstand high-intensity impacts through precise structural design, eliminating potential explosion risks caused by material issues;
④ The motor and electrical cavity adopt a fully enclosed, explosion-proof structure. Even if internal sparks or explosions occur, the precise flange gap and robust casing will isolate the flames and high temperatures, effectively preventing the spread of explosion energy to the outside and ensuring the safety of the external hazardous environment;
⑤ Equipped with a specially designed all-copper wire explosion-proof motor, using H-class and above insulation materials, possessing superior overload capacity and temperature rise control technology, ensuring... It maintains a low temperature rise even under prolonged high-load operation, fundamentally eliminating the risk of spontaneous combustion caused by motor overheating;
⑥ The fan blades are optimized using aerodynamic simulation software, employing multi-wing or backward-curved blade profiles, achieving a perfect balance of ultra-high airflow and pressure, and effectively reducing operating noise and energy consumption, demonstrating professional-grade energy efficiency and high performance;
⑦ Key rotating parts utilize imported high-quality sealed bearings and long-lasting lubrication technology, possessing excellent dustproof, moisture-proof, and wear-resistant properties, ensuring tens of thousands of hours of trouble-free and stable operation even under harsh conditions, far exceeding the durability of ordinary equipment;
⑧ The surface is treated with special electrostatic powder coating or electrophoretic coating, giving it a high protection rating of IP55 or above, enabling it to easily cope with extreme industrial environments such as humidity, salt spray, acid and alkali, and dust, demonstrating strong environmental resistance;
⑨ Our company provides a comprehensive after-sales service network covering most areas of the country, ensuring worry-free use for users (Note: excluding a very few remote towns and villages);
⑩ We provide multi-faceted free technical services, including video, telephone, and online video tutorials, intuitively demonstrating equipment performance and operating methods, helping users quickly master operation methods and troubleshooting.
① Explosion-proof design: Precision explosion-proof chamber effectively isolates internal explosion flames and energy;
② High-strength lightweight material: Made of aerospace-grade aluminum alloy, combining excellent heat dissipation and impact resistance;
③ Spark-free electrostatic design: Special treatment of impeller and components fundamentally eliminates the risk of electrostatic sparks;
④ High-efficiency cooling system: Optimized heat dissipation fins and air ducts ensure the motor core operates at a consistently low temperature;
⑤ Precision sealing protection: IP55 and above high-level protection, impervious to dust and moisture;
⑥ Power core: Dedicated explosion-proof motor, F/H class insulation, excellent lifespan and stability;
⑦ Aerodynamic impeller: CFD-optimized airfoil blades provide strong wind pressure and quiet operation;
⑧ Sturdy safety guard: High-strength metal mesh guard prevents foreign objects from entering, ensuring safe operation;
⑨ Modular intelligent control: Supports variable frequency speed control and intelligent interfaces for precise airflow control;
⑩ Vibration reduction and noise reduction structure: Optimized balance design and vibration-damping base ensure smooth operation and low noise.
|
Model |
Explosion-proof Rating |
Speed |
Airflow |
Inner Diameter |
Outer Diameter |
Wind Pressure |
Power Supply Voltage |
Power (kW) |
|
BT35-CBF-2.5-4-L |
IIBT4、IICT4、IIICT130℃ |
1450r/min |
1460 |
268 |
315 |
66 |
220V |
0.12 |
|
BT35-CBF-2.8-4-L |
1605 |
288 |
338 |
60 |
220V |
0.18 |
||
|
BT35-CBF-3.15-4-L |
2273 |
323 |
372 |
74 |
220V |
0.25 |
||
|
BT35-CBF-3.55-4-L |
3625 |
363 |
413 |
93 |
220V |
0.37 |
||
|
BT35-CBF-4-4-L |
4687 |
408 |
458 |
119 |
220V |
0.55 |
||
|
BT35-CBF-4.5-4-L |
9133 |
508 |
558 |
185 |
220V |
0.75 |
||
|
BT35-CBF-5.6-4-L |
12812 |
568 |
620 |
232 |
380V |
1.1 |
||
|
BT35-CBF-6.3-4-L |
18250 |
638 |
692 |
294 |
380V |
1.5 |
||
|
BT35-CBF-7.1-4-L |
26120 |
715 |
765 |
373 |
380V |
3 |
||
|
BT35-CBF-8.0-4-L |
37370 |
805 |
865 |
474 |
380V |
4 |
||
|
BT35-CBF-9.0-6-L |
960r/min |
35227 |
905 |
960 |
263 |
380V |
3 |
|
|
BT35-CBF-10.0-6-L |
50742 |
1005 |
1060 |
373 |
380V |
5.5 |
||
|
BT35-CBF-11.2-6-L |
67892 |
1125 |
1200 |
407 |
380V |
7.5 |
|
No. |
Name |
Parameters |
Reference Photo |
|
1 |
Explosion-Proof Flexible Conduit | ① 25*1500mm | ![]() |
|
2 |
Explosion-proof Plug | ① 220/380V | ![]() |
Products provided by famous enterprises are deeply trusted by users.
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.
As Precision structural design High efficiency Explosion-proof Blower Manufacturers and Precision structural design High efficiency Explosion-proof Blower Factory in China, 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, supply Precision structural design High efficiency Explosion-proof Blower Wholesale, 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.
We welcome inquiries and cooperation from both new and existing customers, providing professional equipment solutions.
2025/11/27
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2025/11/12