How does ultra-thin FFU compare with conventional FFU? Performance check after space reduction
Ultra-thin structures are more than just height reduction
In clean room renovation or equipment supporting projects, sometimes there is limited space in the suspended ceiling mezzanine. Conventional FFU cannot be placed high enough, so ultra-thin FFU needs to be considered. The appearance height of ultra-thin FFU is lower than that of conventional FFU. It seems that the cabinet is just thinner, but in actual comparison, you cannot just look at the height.
In order to reduce the overall height of the ultra-thin FFU, adjustments are usually made to the air duct, fan, filter and box structure. These adjustments may affect air volume, static pressure, noise and maintenance methods. Therefore, to compare ultra-thin FFU with conventional FFU, it is necessary to check the overall machine height, air inlet clearance, target air volume and static pressure, filter configuration and maintenance space at the same time.
Aili Industry has complete production capabilities in terms of FFU complete machine structure, and can provide both conventional FFU and ultra-thin FFU configurations. For the basic structure of the FFU machine, please refer toAili Industrial FFU fan filter unit。
How to check the height of the whole machine and the air inlet clearance
The height of the entire machine is the most direct difference between the ultra-thin FFU. The ultra-thin FFU box is thinner and takes up less height in the ceiling mezzanine. However, after the height of the whole machine is lowered, the air inlet clearance also needs to be confirmed.
The air inlet of a conventional FFU usually has enough space for air to enter. Because the box of ultra-thin FFU is thinner, the distance between the air inlet and the top or structure may be smaller. If the air intake clearance is insufficient, the air volume may be affected. Therefore, when choosing ultra-thin FFU, you need to confirm how much space is left above the air inlet after installation.
For projects with limited ceiling mezzanine height, you can refer toUltra-thin FFU and70mm ultra-thin EFU understands different height configurations.
How the matching of air path and fan changes
The air path of ultra-thin FFU is shorter than that of conventional FFU, and the air flow path in the box is different. Changes in the air path may affect the fan operating point. If the matching of the fan and filter is not rechecked, there may be insufficient air volume or insufficient static pressure.
Ultra-thin FFU usually uses fans suitable for compact construction. Fan size, speed and static pressure capacity may differ from conventional FFU. When selecting, you need to confirm whether the static pressure of the ultra-thin FFU meets the system resistance requirements under the target air volume.
If the project has clear requirements for air volume or static pressure, it is recommended to compare the performance data of ultra-thin FFU and conventional FFU under the same working conditions, rather than just looking at the appearance height.
How to check filter configuration
Ultra-thin FFUs typically use thinner filters to match the cabinet height. Changes in filter thickness will affect the effective filter media area and resistance. Thinner filters may have higher resistance and lower dust holding capacity at the same efficiency level.
If the project requires a higher efficiency level or a longer replacement cycle, you need to confirm whether the filter matching the ultra-thin FFU meets the requirements. The filter thickness, sealing method and removal method also need to match the box structure.
For projects that require ULPA filters, you can refer toFFU is equipped with ULPA ultra-high efficiency filter and understands the interface requirements of the filter and the whole machine.
Ultra-thin FFU in device-side applications
Ultra-thin FFU is not only used in clean rooms with limited ceiling mezzanines, but is also commonly used in equipment-side supporting scenarios. Semiconductor cleaning machines, etching equipment, glue coating and development equipment, testing equipment, etc. have compact internal spaces and have clear requirements for the height, installation method and cleanliness of the air supply unit. The ultra-thin FFU in such applications usually needs to cooperate with the equipment structure, moving parts and maintenance channels, which requires higher requirements for overall machine design and interface customization.
In equipment-side applications, ultra-thin FFU needs to take into account air volume, static pressure and filter configuration within a limited height. After the box height is reduced, fan selection, air duct design and filter matching all need to be recalculated. At the same time, the equipment-side FFU often needs to adapt to the vibration, heat and maintenance rhythm of the equipment during operation, and also has requirements for the stability and maintainability of the entire machine.
Aili Industrial has a complete production chain and R&D capabilities in ultra-thin FFU and equipment-end fan filter units. From box structure, fan matching, filter matching to control system, everything is completed within its own system. The company launched the 70mm ultra-thin EFU equipment-side fan filter unit earlier, and has accumulated practical project experience in ultra-thin structural design and complete machine matching. For equipment-side applications such as semiconductor cleaning machines, ultra-thin FFU or customized EFU solutions can be provided according to the internal space and air supply requirements of the equipment. For specific structure, please refer to70mm ultra-thin EFU andCustomized EFU equipment-side fan filter unit。
How to check maintenance space
Due to the reduced height of the ultra-thin FFU, the internal maintenance space may be more compact. When replacing the filter, it needs to be confirmed whether the operating space is sufficient and whether the pressing mechanism is easy to operate. For the detachable ultra-thin FFU, when replacing the filter from the clean room side, the operating clearance and tool usage space need to be checked.
If there is insufficient maintenance space, it may be necessary to adjust the installation location or choose another structure. Please refer to the maintenance space check of the detachable FFU.Detachable FFU。
How Noise and Vibration Compare
Because the cabinet of ultra-thin FFU is thin, the control of noise and vibration may be different from that of conventional FFU. The cabinet is thin and the sound insulation and vibration damping capabilities may vary. If the project has noise requirements, it is necessary to confirm the noise data of the ultra-thin FFU at the target speed.
In device-side applications, vibration transmission requires more attention. If the ultra-thin FFU is installed on a cleaning machine or other precision equipment, fan vibration may affect the operation of the equipment. The installation method and vibration reduction measures need to be confirmed during the selection stage.
When to choose ultra-thin FFU?
Ultra-thin FFU is suitable for scenarios where the height of the mezzanine in the ceiling is limited, the space above the equipment is insufficient, the mezzanine height cannot be increased in the renovation project, or the equipment needs compact air supply. Equipment-side applications such as semiconductor cleaning machines, testing equipment, and glue coating and development equipment are common usage scenarios for ultra-thin FFU.
If there is enough space, conventional FFU may have more margin in terms of air volume, static pressure and maintenance space. When selecting ultra-thin FFU, you should confirm whether the target air volume, static pressure, filter configuration and maintenance method meet the project requirements. If both space and performance need to be considered, ultra-thin FFU can be used in some areas and conventional FFU in other areas.
Issues that should be confirmed in advance during project communication
In the comparison stage between ultra-thin FFU and conventional FFU, it is recommended to confirm the following with the manufacturer: installation space height and air inlet clearance; target air volume and static pressure; filter configuration and thickness; maintenance method and space; noise and vibration requirements; installation method and interface; whether equipment-side customization is required; whether a mixture of two structures is required; performance test data.
If you are comparing ultra-thin FFU to regular FFU, you can visitAili Industrial FFU fan filter unit to learn about the complete machine configuration, you can also refer toUltra-thin FFU、70mm ultra-thin EFU andCustomize the EFU equipment-side fan filter unit to learn about different heights and equipment-side solutions, or contact Aili Industrial for selection support.
in conclusion
To compare ultra-thin FFU with conventional FFU, it is necessary to check the overall machine height, air inlet clearance, air volume and static pressure, filter configuration and maintenance space at the same time. After lowering the height of the box, the matching of the air duct, fan and filter may change. You cannot just look at the appearance. Ultra-thin FFU also needs to consider vibration, installation interface and maintenance cycle in device-side applications.
Aili Industrial has a complete production chain and R&D capabilities in ultra-thin FFU and equipment-side fan filter units. It launched the 70mm ultra-thin EFU earlier and has accumulated practical experience in equipment-side supporting projects. If you need to know more about ultra-thin FFU selection, you can visitAili Industrial FFU fan filter unit , you are also welcome to contact Aili Industrial for project support.
