φ133mm-A001 230V AC Backward-curved Centrifugal Fan

			Ps [Pa]	Airflow [m3/h]	Speed [rpm]	Power [W]
	A	①	40	280	3434	34.7
		②	60	267	3430	35
		③	101	233	3419	35.8
		④	126	214	3427	35.7
	B	⑤	40	231	2891	33.5
		⑥	60	213	2887	33.8
		⑦	101	172	2884	33.6
		⑧	125	138	2887	33.8

Ibis AC backward curved centrifugal fan, with the core advantages of high efficiency and energy saving, stable operation, low noise and sufficient wind pressure, is widely applicable to various industrial and commercial scenarios that have high requirements for ventilation, heat dissipation and air exchange. The specific applications are as follows:

AHU

As the core ventilation component of the Air Handling Unit (AHU), the Ibis AC backward curved centrifugal fan is responsible for efficiently delivering the treated hot and cold air to various areas, accurately matching the air volume demand of the unit, helping the air conditioning system achieve rapid temperature adjustment and air purification. It is suitable for central air conditioning systems in large buildings such as shopping malls, office buildings, hospitals and factories, ensuring a comfortable and stable indoor air environment.

FFU

In the Fan Filter Unit (FFU), the Ibis AC backward curved centrifugal fan provides stable and uniform wind pressure, driving air through high-efficiency filters to remove dust, particles and other impurities in the air, creating a clean production or experimental environment. It is widely used in scenarios with high requirements for air cleanliness such as electronic factories, semiconductor workshops, biological laboratories and pharmaceutical workshops.

IDC Small Cabinets

For small cabinets in Internet Data Centers (IDC), the Ibis AC backward curved centrifugal fan can quickly discharge a large amount of heat generated by the operation of servers, switches and other equipment inside the cabinet, effectively controlling the temperature inside the cabinet, preventing equipment failure due to overheating, and ensuring the 24-hour stable operation of data center equipment. It is suitable for the cabinet heat dissipation needs of small and medium-sized data computer rooms and edge computing computer rooms.

High Voltage Inverter Cabinet

A large amount of heat will be generated during the operation of the high-voltage inverter cabinet. If heat accumulates, it will affect the service life and operation stability of internal components. The Ibis AC backward curved centrifugal fan can efficiently discharge the heat inside the cabinet, maintain a constant temperature environment inside the cabinet, adapt to the heat dissipation needs of the high-voltage inverter cabinet, and is widely used in the supporting of high-voltage inverter equipment in industries such as electric power, metallurgy, chemical industry and mining, ensuring the safe and efficient operation of the equipment.

Supported by multiple authoritative certifications, compliant and reassuring, building a solid line of quality for the AC backward centrifugal fan and adapting to global multi-scenario application needs.

UL Certification

Certified by UL authoritative safety mark, the AC backward centrifugal fan features high reliability and long service life for North American and global high-end markets.

CE Certification

Compliant with EU LVD and EMC directives, the AC backward centrifugal fan is qualified for EU market access, with smoother global application.

CCC Certification

Complies with China's mandatory product certification standards, suitable for the AC backward centrifugal fan, fully meets electrical safety and EMC requirements, safer to use, and adapts to various domestic compliant scenarios.

CQC Certification

Certified by China Quality Certification Center, strict testing controls the performance and quality of the AC backward centrifugal fan, demonstrating reliable product quality.

RoHS Certification

Complies with EU RoHS environmental standards, restricts harmful substance content, suitable for the AC backward centrifugal fan, green and environmentally friendly, adapting to high-end clean, medical and other strict environmental scenarios.

Reach Certification

Certified by EU REACH regulation, fully controls chemical substance risks, suitable for the AC backward centrifugal fan, compliant for export, and adapts to global market applications.

Q1: What are the main applications of AC backward curved centrifugal fans?

A: They are mainly suitable for various industrial and commercial scenarios with high requirements for ventilation, heat dissipation and air exchange. Core applications include air handling units (AHU), fan filter units (FFU), small cabinets in internet data centers (IDC), and high-voltage inverter cabinets. They can also be used in electronics factories, pharmaceutical workshops, hospitals, office buildings and other places requiring stable ventilation or heat dissipation.

Q2: What are the core advantages of AC backward curved centrifugal fans compared with other types of fans?

A: The core advantages focus on four aspects: first, high efficiency and energy saving with low operating power consumption, reducing costs for long-term use; second, stable operation and low noise, suitable for scenarios with high environmental requirements; third, sufficient air pressure with high ventilation and heat dissipation efficiency to quickly meet application needs; fourth, strong adaptability, complying with global regional certification standards and compatible with equipment and scenarios of different specifications.

Q3: What authoritative certifications do AC backward curved centrifugal fans have, and which regional compliance requirements can they meet?

A: The product is equipped with multiple authoritative certifications to meet global compliance requirements: UL certification (compliant with standards for North American and global high-end markets), CE certification (qualified for EU market access), CCC certification (compliant with China’s mandatory product certification for domestic scenarios), CQC certification (certified by China Quality Certification Center to ensure product performance), RoHS certification (EU environmental standard for strict clean, medical and other environmentally sensitive scenarios), and REACH certification (EU chemical substance regulation supporting compliant export to global markets).

Q4: What key points should be noted during the installation of AC backward curved centrifugal fans?

A: Three points should be noted during installation: ① The installation position must be flat and firm to avoid vibration during operation that affects service life; ② Ensure good sealing at the interface between the fan and connected equipment (such as AHU, FFU, cabinets, etc.) to prevent air leakage and reduce ventilation/heat dissipation performance; ③ Reserve sufficient maintenance space for future upkeep and troubleshooting, and keep away from flammable, explosive and corrosive materials.

Q5: What inspections are required before starting an AC backward curved centrifugal fan?

A: Four inspections shall be completed before startup: ① Check that the power connection is normal, with no damaged or loose wires to ensure electrical safety; ② Verify that the fan impeller rotates flexibly without jamming, abnormal noise or foreign matter entanglement; ③ Check that all mounting bolts are securely fastened to avoid loosening during operation; ④ Confirm that the fan rotation direction matches equipment requirements to prevent performance loss from reverse operation.

Q6: What causes abnormal noise during the first startup after installation, and how to solve it?

A: Common causes and solutions: ① Foreign matter (dust, cables, etc.) entangled on the impeller – turn off power and clean the impeller; ② Loose fan mounting causing vibration noise – tighten mounting bolts and adjust to a flat position; ③ Misaligned impeller installation – remove the fan and recalibrate the impeller position; ④ Insufficient lubrication in bearings – add compatible lubricant, or replace bearings if severely worn.

Q7: What is the recommended routine maintenance interval for AC backward curved centrifugal fans, and what are the main maintenance items?

A: Recommended maintenance intervals: every 3 months for general environments, and every 1 month for dusty or harsh environments (such as mines, chemical workshops). Core maintenance items: ① Clean dust and debris on the fan surface and impeller to prevent performance loss from buildup; ② Check bearing lubrication and replenish lubricant in time; ③ Inspect power cables and connectors for aging or looseness; ④ Test run the fan to check for abnormal noise or vibration and troubleshoot minor issues promptly.

Q8: What preparations are needed before restarting a fan that has been out of service for a long time?

A: For long-term idling (over 1 month), three preparations are required: ① Thoroughly clean dust and debris from the fan surface, impeller and air inlet to avoid operational interference; ② Inspect bearing condition and replace degraded lubricant with compatible new oil; ③ After power connection, run without load for 1–2 minutes to confirm normal operation with no jamming or noise, then connect to equipment for formal use.

Q9: Does this fan support customization, and what requirements can be customized?

A: Customization is supported. Parameters including air volume, static pressure, dimensions and mounting type can be customized according to user requirements. Special adaptations are also available for different scenarios (such as high-end clean environments, high-temperature applications) to ensure perfect matching with equipment and working conditions.

Q10: How to handle fan faults that cannot be diagnosed and resolved independently?

A: It is recommended to immediately turn off the power and stop operation to prevent fault escalation. Then contact the manufacturer’s after-sales service, describe the fault details (such as abnormal noise, shutdown, insufficient air volume, etc.), and arrange for professional on-site maintenance. Do not disassemble the fan without authorization to avoid component damage or safety hazards.