How to Choose Explosion Proof Clean Room Hoist

In the semiconductor, petrochemical, pharmaceutical and other industries with high cleanliness and high safety requirements, electric hoists, as important lifting components of bridge and gantry cranes, must not only meet the dust-free and low-vibration requirements of clean rooms, but also have reliable explosion proof performance to prevent any safety accidents caused by electric sparks or high temperatures. How to accurately select a clean room hoist that meets the cleanliness standards and has explosion proof capabilities among many products?

Clarify the application environment and cleanliness level

  ● According to ISO 14644-1 or GMP "Dust-free Cleanroom Specifications", clean rooms are divided into levels 1 to 9. The higher the level, the stricter the control of dust particles, microorganisms and vibration noise. In ultra-high clean environments of levels 1 to 3, fully enclosed stainless steel housings, oil-free solid lubrication chains, and HEPA/ULPA high-efficiency filtration and positive pressure exhaust systems should be used; in levels 4 to 7, some aluminum alloy structures and specially treated lubrication solutions can be considered.

  ● International explosion proof standards (such as IECEx, ATEX, GB) divide hazardous areas into three levels: Zone 0/1/2 (gas) and Zone 20/21/22 (dust). The required explosion proof level (Ex d, Ex e, Ex n, Ex p, Ex q, etc.) needs to be confirmed based on the hazardous characteristics and concentration of the gas or dust on site. Zone 0 and Zone 20 areas require a higher explosion proof level, while Zone 2/22 can choose a relatively simplified explosion proof or increased safety design.

Selection process and implementation suggestions

  ● Confirm with the process, safety, equipment and cleanroom management team: maximum lifting weight, lifting height, cleanliness level, explosion proof area, frequency of use and operating temperature.

  ● Request technical parameter sheets, certification documents and typical cases, and conduct a preliminary assessment of the requirements of the benchmark project.

  ● Site survey: check track spacing, height restrictions, power supply and grounding conditions, and hanging methods.

  ● Under the premise of meeting the working conditions, conduct a 24-72 hour continuous operation test, focusing on temperature rise, noise, vibration and filtration efficiency.

  ● Develop an "Operation Manual", "Maintenance Manual" and "Emergency Plan", and carry out training for operators and maintenance personnel.

The selection of explosion proof clean room hoists is a balance between technicality and practicality. It is necessary to start from the intrinsic safety requirements of the scene and combine the long-term use cost for comprehensive evaluation. Choose a professional supplier to ensure safe, clean and efficient operation of the equipment throughout its life cycle to protect production in special environments. Contact our technical team now to get a customized explosion proof clean room hoist solution!