Upgraded Standard for Explosion Proof Spraying Equipment

May 18, 2026, Dongguan – During spraying operations, flammable gases and atomized particles from coatings easily form explosive atmospheres. In recent years, multiple spray booth explosions have caused casualties and heavy property losses, making spraying safety a critical industry redline. However, many SMEs still face severe hazards such as non explosion proof electronics, insufficient ventilation, and missing electrostatic grounding. To address this urgent need, Dongguan Mansheng Automation Equipment Co., Ltd. has launched a full series of ATEX / IECEx internationally certified automatic spray machines, building a safety barrier from the source and providing compliant, reliable automation solutions for enterprises using flammable solvent based coatings, aluminum paints, and rubber oils.

In 2023, a furniture factory in Zhejiang exploded due to sparks from a non explosion proof exhaust fan, leaving three workers seriously injured. In 2024, a repair shop in Guangdong suffered a flash fire from static buildup while spraying aluminum paint in an enclosed space. Common violations found:

• Non explosion proof motors, switches, and lighting
• Insufficient ventilation leading to solvent accumulation
• Missing anti static clothing or poor equipment grounding
• No flammable gas detection or interlock systems

A 2024 special inspection by the Ministry of Emergency Management found that 43% of 1,200 coating companies had explosion hazards, and only 28% of SMEs were fully compliant. Spraying safety is not only operational but also legal: non compliance is classified as a major hazard under official standards.

Since 2022, Mansheng has cooperated with European certification bodies and invested over ¥8 million to fully upgrade its 6th generation 360° high speed rotating spray equipment. Mansheng is now one of the few domestic manufacturers with full machine ATEX (EU) and IECEx (international) double explosion proof certification.

1. Electrical Explosion Protection All motors, sensors, controls, lighting, and junction boxes comply with Ex d (flameproof) or Ex e (increased safety) standards. The core controller is housed in a pressurized explosion proof cabinet to contain internal sparks.
2. Static Electricity Safety Equipotential bonding for nozzles, paint lines, conveyors, and personnel with resistance below 1 Ω. Built in static grounding interlock automatically alarms and stops if grounding fails.
3. Gas Detection & Interlock Dual redundant flammable gas detectors (catalytic + infrared) are installed in the booth.
   • Alarm at 25% of lower explosive limit (LEL)
   • Automatic shutdown, paint cut off, and exhaust activation at 50% LEL
   All logic is TÜV safety certified.
4. Pre Purge & Post Purge Automatic pre purge with 5× booth volume air exchange for 3 minutes before startup. Post purge continues for 2 minutes after shutdown.
5. Explosion Venting Structure Double steel plates with directional explosion vents. Tempered laminated glass with explosion proof mesh for viewing windows.

An automotive parts plant in Shanghai was ordered to suspend production due to safety violations in aluminum paint spraying. After installing Mansheng’s ATEX certified line and full workshop retrofitting:

• All non explosion proof electrics replaced
• Independent gas detection and interlock system added
• Anti static flooring and static discharge columns installed
• Air changes increased to ≥30 cycles/hour

The plant passed inspection and resumed production. The manager commented: “Mansheng solved compliance and automated production at the same time. One machine replaced five sprayers — safety and efficiency together.”

From January 1, 2025, the new national standard GB 14444 2024 Safety Code for Spray Booths takes effect, requiring:

• Electrical equipment at least Ex ⅡB T4
• Mandatory flammable gas alarms and interlocks
• Fail safe design for automatic spray machines
• Regular explosion proof maintenance and inspection

Mansheng’s full range already meets GB 14444 2024 and supports one stop compliance services.

Unlike traditional designs that reduce speed or power, Mansheng balances safety and performance:

• Ex eb increased safety motors + VFD maintain 65,000 rpm atomization
• Explosion proof sensors retain ±1% flow control and ±2 mm positioning
• Pressurized cabinet with integrated cooling enables 24/7 operation

“Under European expert guidance, we optimized for two years to achieve maximum safety with minimal performance loss,” said Mansheng’s Technical Director.

Explosion proof models cost about 20% more than standard versions, but high risk customers view this as essential. “An extra ¥50,000 protects millions in assets and human lives. The choice is clear,” said a metal products factory director. Mansheng also provides annual explosion proof maintenance: grounding testing, sensor calibration, seal replacement — only ¥5,000/year.

ATEX / IECEx certification allows direct entry to Europe, the Middle East, Southeast Asia, and beyond. Many overseas buyers require ATEX for customs and factory audits. In 2024, 25% of Mansheng’s total sales were explosion proof models exported to Poland, Turkey, Vietnam, Indonesia, and more.

Industry experts emphasize that spraying safety requires risk management, not luck. Enterprises must treat explosion protection as mandatory for new or upgraded lines. Mansheng will partner with the China Coating Industry Association to launch a national spraying safety tour in late 2025, offering free training on standards, selection, and maintenance for SMEs across major manufacturing hubs.

Dongguan Mansheng Automation Equipment Co., Ltd. is a national high tech enterprise and council member of the China Coating Industry Association, holding 13 invention patents. Its 6th generation 360° high speed rotating spray machines are ATEX / IECEx certified and fully comply with GB 14444 2024, ideal for high risk applications including aluminum paint, rubber oil, and solvent coatings.

Release Date: May 18, 2026