Product
- Industrial Centrifugal Fan -- Low Pressure -- High Pressure -- Plug Type -- Plenum fan -- FRP Centrifugal Fan
- Inline Fan - Axial Fan - Centrifugal Fan - Mixed Flow Fan
- Roof & Sidewall Fan -- Roof Fan -- Sidewall Fan
- DWDI AHU Fan
- Tunnel Fan &
Metro Fan - Induced & Kitchen Fume Extractor Fan
- EC Fan
- Other
- Intelligent Control
- Fresh Air and Heating Unit
- INFINAIR Motor
- Customization
Backward Curved Centrifugal Fan - YFBCSL
Airflow Range: 1,000～380,000 m³/h (588~223,529 CFM)
Static Pressure Range: 300～4,100 Pa (1.2~16.46 in.WG.)
Operating Temperature: -20～450 ℃
Drive Types: Direct/ Belt/ Coupling drive
Mounting Type: Base mounted
Applications: General air supply and exhaust/ Explosion-proof air supply and exhaust / Smoke removal
For reference only. Please contact our sales rep for detailed performance fan curve. Thank you.
Wheel
Optimized Design
The fan has the backward curved centrifugal wheel with its design optimized through CFD simulation and more accordant with the aerodynamic characteristics. High efficiency and more stable airflow are thus ensured.
Advanced Process
The plasma cutting, positioning fixture of high precision and all-welding technique contribute to the smoothness, high strength and great reliability of the steel blades that has uniform stress distribution for long-term high speed running.
High Balance Quality Grade
Each wheel has been dynamically balanced up to G4.0 standard (Just G6.3 for general products domestically and internationally).Durability, stability and quietness are guaranteed.
Wide Performance Range of High Efficiency
The wheel has stable and flat performance curves over a wide range of operating conditions which can efficiently avoid performance drop as the operating point moves up or down.
Non-overloading
There exists a maximum shaft power for the motor. When the motor is selected based on the maximum shaft power, motor power and motor service factor, the shaft power can never exceed the rated motor power as the fan runs within the operating range. The user can be rest assured in this respect.
Feature
Great Reliability
· FEA-aided design helps enhance the structural reliability.
· The scroll and wheel are strengthened and leak-proof thanks to the all-steel continuous welding method. Operational safety is also significantly improved.
· The new shaft and coupling technology ensure accuracy during the assembly process and improve product reliability.
· The fan shaft has been treated through hardening and tempering and finish turning processes. Its maximum load is 35% more than the highest speed to ensure the long-term safe and continuous operation.
· The bearing seal can be lubricated. Its L10 rating service life is in excess of 80000 hours to ensure operational reliability and durability.
· The drive unit has a protective cover with a bright color for warnings to ensure safety.
· The product has undergone vibration tests before leaving the factory in order to achieve reliable and durable operation.
High Efficiency
·The wheel cone is carefully matched to the inlet cone for precise running tolerances to reduce air leakage and turbulence and improve air performance.
·The design is optimized repeatedly through CFD simulation to ensure the aerodynamic performance accords with the flow field characteristics.
·The Fan Efficiency Grade reaches as high as FEG 80 (AMCA 205-10).
User Friendly Convenience
· Different drive types makes motor selection flexible.
· Some commonly used accessories are provided with the fan.
· A complete set of accessories are available for various applications.
Technical
Fan Type
The fan shall be of the single-inlet centrifugal type with the backward curved steel wheel. The drive types shall be direct, coupling or belt.
Standards and Codes
The design and manufacturing of the fan shall comply with JB/T 10563-2006 Technical Specification for General Purposes Centrifugal Fans; The wheel dynamic balancing test shall comply with JB/T 9101-1999 Fan Rotor Balance; The wheel overspeed test shall comply with JB/T 6445-2005 Overspeed Test for Industrial Fan Impeller; The air performance test shall comply with JB/T AMCA 210-99 Laboratory Methods of Testing Fans for Aerodynamic Performance Rating. The welding technique shall comply with JB/T 10213-2000 Technical Specification for Fan Welding Inspection; The fan safety shall comply with GB/T 19074-2003 Industrial fans--Mechanical safety of fans--Guarding.
Wheel
The wheel shall be of the backward curved centrifugal steel type and all welded. The wheel shall be statically and dynamically balanced up to ISO 1940-G4.0 standard. Stable airflow and low sound should be ensured as the wheel is operating at the maximum allowable speed. Drop in performance shall be avoided as the operating point moves up or down. The wheel shall be readily removable for cleaning or maintenance.
Fan Housing
The fan housing shall be constructed of steel and it shall be thick and strong enough to withstand the maximum operating weight of the fan. The housing shall be continuously welded and have an access door for removing possible foreign bodies.
Inlet
The inlet shall be designed in line with aerodynamics. It shall be streamlined for better airflow movement and efficiency, reducing turbulence and sound.
Belt Drive and Coupling Drive
The fan shaft shall be treated through hardening and tempering and finish turning processes up to the hardness level of HB250-280. Its maximum load shall be 35% more than the highest fan speed. The shaft shall be supported by two bearings with L10 rating service life of over 80000 hours. It shall be sealed and can be lubricated under normal operating temperatures. The pulley shall be of cast iron type and shall be sized for a minimum of 150% of the driving power. There shall be pulley and belt guard. Flexible coupling equipped with a guard shall be used. The factor of safety of power transmission and torsion shall meet the design requirements.
Motor
The motor shall be carefully matched to the fan load. It shall be IP54 rated with class F insulation. Ball bearing that can be lubricated shall be used. The motor and drive mechanism shall be isolated from the airstream to avoid grease or dirt accumulation.
Surface Processing
The surface of the fan shall be polished to remove any protuberances, welding spatters, burrs, sharp edges, scrap iron and greasy dirt before being finished with electrostatic grey 9006 epoxy coatings. The finished gloss level shall be greater than or equal to 70%. The surface shall be a level one without sags, cracks, cockles or detachment.
Nameplate
A permanently fixed aluminum nameplate shall clearly display the fan number, product model and serial number (a unique ID for each fan) so that the parts used can be traceable by customers.
Company Video
Welcome to INFINAIR. This video is about our company, including history, products, value, service, technology, production and future. Integrated with R&D, tailor making, manufacturing, and international service ability, INFINAIR provides you complete, high-quality ventilation and industrial process air solution
Company Profile
INFINAIR is an integrated R&D, production and sales system solution provider specializing in mid-to-high-end supply and exhaust ventilation, process ventilation, heating, air purification and other equipment. The company upholds the product core values of “Reliable, Responsive, Rewarding”.
Trademark： INFINAIR
Established Since: September 2003
Paid up capital: 50,000,000 RMB
Architectural area: 33,000 ㎡
Address: No. 55 Qingneng Road, Waigang Town, Jiading District, Shanghai, P. R. China
INFINAIR ARABIA CO LTD
Established: 2018
Factory Objectives: To produce INFINAIR fans and supply it to customers in MENA with short delivery
Architectural Area: 2,383 ㎡
Factory Location: Kingdom of Jordan - Amman Mowaqqar Free Zone - Industrial area
Head Office: Amman - Zarqa Amman main road- Tabarbour area -Jordan
Contact: info@infinair-arabia.com
To become a professional fan brand trusted by global customers.
Mission Statement:
To deliver air with ultimate quality-to-price value.
Product value proposition of INFINAIR: Reliable, Responsive, Rewarding.
1. Reliable
Quality is INFINAIR guiding principle. We are committed to stability and safety, serving as the cornerstone of lasting customer trust.-- Reliability first stems from strong R&D capabilities. During the product development phase, we conduct repeated theoretical calculations. Through powerful experimental verification capabilities, we engage in continuous cycles of validation and refinement, ensuring reliability is engineered into the product from the design stage.
-- Reliability is supported by robust manufacturing capabilities. Based on advanced equipment and hardware, we comprehensively enhance reliability through lean management and the continuous improvement of employee skills.
-- We have effectively implemented our quality assurance system . We have deeply integrated ISO 9001:2015 (Quality Management), ISO 14001:2015 (Environmental Management) and ISO 45001:2018 (Occupational Health and Safety Management). Our triple-standard integrated system underscores our commitment to social responsibility.
2. Responsive
We respond quickly to needs, ensure efficient delivery, and fulfill our commitments through decisive action.
-- INFINAIR offers a broad and complete product portfolio with diverse options, providing customers with one-stop solutions to save time and effort.
-- INFINAIR provides customized solutions to meet specific customer needs, including bespoke products and integrated systems that address unique challenges.
-- Our advanced selection software delivers complete technical details and comprehensive accessory options, greatly reducing communication and clarification time.
3. Rewarding
We pursue the ultimate-quality, cost-effective , delivering beyond expectations through optimized cost structure.
-- Innovative Impeller Design: The innovative impeller design significantly improves aerodynamic performance, achieving superior energy efficiency and noise reduction.
-- Innovative Structural Design: We make products simpler, more logical, and cost-effective, ultimately enhancing overall performance.
-- New Applications in Installation and Use: New applications in installation and operation make products simpler and more user-friendly.
INFINAIR Laboratory
INFINAIR laboratory is the first AMCA accredited air performance and sound testing laboratory in the mainland of China.
INFINAIR laboratory has successfully obtained the CNAS Laboratory Accreditation Certificate and enlisted in the Chinese National Accredited Laboratory Directory.
Laboratory Accreditation Certificate Issued by CNAS (Chinese National Accreditation Service for Conformity Assessment)
Laboratory Accreditation Certificate Issued by AMCA (Air Movement and Control Association)
All testing procedures at INFINAIR’s air performance and sound testing laboratory are done according to the following standards:
1. All design, fabrication and testing guidelines are in strict accordance with AMCA 210, AMCA 300, ISO 5807, GBT 1236, ISO 13350 and GBT 10178 standards.
2. The INFINAIR laboratory has replaced the simple cardboard shielding method duct test with a new generation of precise-flow nozzle matrix systems.
3. Advanced and sophisticated testing equipment are being used in the laboratory.
4. All equipment used in the laboratory are calibrated and inspected regularly.
5. When comparing the results of same-sample inter-lab tests, the INFINAIR lab test results’ margins of error are within the precision and error requirements specified by relevant international/national standards.
INFINAIR laboratory also has the following test capabilities:
1. perform overspeed test in accordance with JB/T6445 Overspeed test for industrial fan impeller;
2. perform vibration test in accordance with JB/T8689 Fan vibration detection and its limited value and other related standards;
3. perform thrust test for tunnel jet fans in accordance with ISO13350 Industrial fan-Performance testing of jet fans;
4. Designed in accordance with such standards as EN 12101-3 and UL 793, INFINAIR laboratory has built high-temperature furnaces for smoke removal fans for performance tests and as a witness test platform for obtaining TUV, UL and other overseas certifications.
INFINAIR laboratory can perform other tests, such as high and low temperature resistance test, water spray and splash test, physicochemical test, dust test and so on. The laboratory helps ensure precise tests for reliable product quality and accurate technical data.
R&D and Innovation
INFINAIR's Numerical Simulation Technology
INFINAIR owns the industry-leading CFD technology
INFINAIR Research Institute masters a set of core CFD technology combining theory with practice owned by INFINAIR itself. Through a large number of repeated engineering applications for many years, now, INFINAIR’s CFD capability is mature and accurate. Besides, in combination with internationally accredited precision laboratories, Our CFD processes have been repeated hundreds of times to allow for comparison between theoretical values and test results, accumulating valuable test data.
CFD is an important R&D capability of INFINAIR’s Research Institute;; it is featured of high calculated result reliability and fast calculation process. By means of the all-series product utility module system, it can reduce the module development cost of new product at the same time of offering fast customization to customer, and ensure economy while realizing customization.
Successful cases of INFINAIR CFD technology:
1. INFINAIR product generally adopts CFD for systematic development and optimized design, and this is just why INFINAIR is capable of supplying more energy-saving and more efficient products with lower noise. Please see following picture of simulated aerodynamic performance process of INFINAIR complete mixed flow fan, a certain new box-type fan of INFINAIR and a certain centrifugal fan of INFINAIR.
CFD flow field pressure and rate of INFINAIR patented complete mixed flow fan (process illustration)
CFD flow field trace of a certain new box-type centrifugal fan of INFINAIR (process illustration)
CFD analysis for inducing fan of garage (process illustration)
2. With respect to garage ventilation system optimization, INFINAIR has successfully developed a new, complete series centrifugal inducing fan with high static pressure as wehll as far projection distance, and guide the ventilation system layout of underground garage of customer. The following is the flow field layout simulation of an underground garage.
INFINAIR has mature FEA technical capability
1.In the practice process of FEA technology for many years, INFINAIR has accumulated a large number of data and experience which are suitable for actual physical property of common materials in China market.
2.INFINAIR Research Institute fully calculates and repeatedly adjusts the material type, material thickness, structural form and processing way in design stage to ensure that the parts can resist various pressures in operation, ensure that the fan can operate reliably for a long time, and ensure that the product cost is reasonable.
3.The final product scheme goes through the reliability verification of INFINAIR laboratory, conducts failure analysis and life extension analysis for products suffered aging test, reaches a definite conclusion, and thus reasonably saves equipment investment while improving product reliability.
CFD flow field pressure cloud of a certain centrifugal fan of INFINAIR (process illustration)
——Numerical simulation technology CAE
1.Numerical simulation is a kind of application of Computer Aided Engineering (CAE), mainly includes two core technologies of CFD and FEA.
2.CFD is short for Computational Fluid Dynamics. CFD simulate-calculates the product performance inside computer, provides guidance for aerodynamic model design (optimize the number of blades, angles and widths) and noise prediction of fan, especially impeller, and thus helps the designer basically predict the final aerodynamic performance without producing so many prototypes, consequently realizes quick customized design or systemic optimization.
3.As a “virtual laboratory”, CFD can realize fast iteration, save cost and reduce R&D period, is a strong tool for effective and reliable fan R&D and non-standard customization, and will provide accurate scheme for optimization of ventilation system.
Process illustration of FEA stress distribution for customized centrifugal fan impeller made by INFINAIR
Successful cases of INFINAIR FEA technology:
1.The following is process illustration for a customized fan analyzed by INFINAIR Research Institute . According to the system natural vibration characteristics of the customer, INFINAIR Research Institute makes vibration mode analysis for the overall customized fan, achieves structural optimization, avoids resonating with system, and ensures that the fan can operate reliably for a long time.
Modal analysis for fan frame made by INFINAIR Research Institute through FEA
2.In order to analyze the bearing and deformation of motor platform in operating process, INFINAIR Research Institute conducts modal analysis based on FEA technology.
R&D and Innovation: R&D team
INFINAIR Research Institute focuses on “product life cycle” and is fully responsible for management of all products. The responsibilities are as follows:
1.Fundamental research of hydromechanics;
2.Market research of ventilation, gas heating, motor, air purification and automatic control of ventilation system;
3.Product planning, R&D and manufacturing;
4.Customization;
5.Market launch and promotion, maintenance and update/obsolescence;
6.Product experiment and test, product certification;
7.Order processing and technical support.
As a new high-tech enterprise in Shanghai, INFINAIR Research Institute has an excellent technical talent team combing elder, middle-aged and young people and an effective talent cultivating mechanism. Immersing in Youth Culture of Ready to learn, Hard-working, Enterprising, Forward-looking, Innovative, Pioneering for a long time, INFINAIR R&D team has cultivated innovative spirit which has become source for core competitiveness of company.
INFINAIR Research Institute always takes Reliable, Convenient, Novel as the basic concept of product R&D and design. Under the guidance of the spirit and concept, the institute has reached innumerable great achievements, obtained more than 40 patent certificates and won many honors, it has launched many products for the first time in industry, what is more important is that INFINAIR Research Institute takes “at customers’ side” and resolving practical product issues for customer as an important work habit, and thus creates valuable and satisfactory experience, gains full trust of customer. INFINAIR Research Institute will never stop innovating.
Production Capacity
Advanced Technology and Equipment Ensure Product Reliability--Much to expect from just having excellent design and a precise detail-oriented drawing? In fact, there is still a long way to go before finalizing a reliable product that comes only from high processing precision and advanced technology.
-- INFINAIR has put to use a large number of high-precision CNC processing machines. Besides, INFINAIR has produced lots of special-purpose equipment and core molds through its independent R&D efforts.
--Also, R&D staff and production workers at INFINIAR are mobilized to promote technological improvements through concerted efforts. By analyzing onsite issues and sharing the actions for improvement, product reliability has been continuously enhanced with the help of wisdom of frontline workers.
Reliability Certified by Quality Control Systems
--INFINAIR has been awarded triple certification in ISO9001, ISO14001 and OHSAS18001 by SGS, a world famous certification agency.
--INFINAIR performs tests on key points at all stages of production and products must be rigorously tested before leaving the factory to ensure reliability. A case in point: INFINAIR made huge investments in building a vibration test bench on the production line and importing dedicated test equipment from Germany for greater accuracy. This bench covers 180 square meters with its foundation reaching 20 meters underground.
--Furthermore, INFINAIR works with consulting companies to launch 5S programs and take the Six Sigma approach to the continuous improvement of products. In this way, abilities of staff can be improved and a sustainable quality management system built.
The TÜV SÜD Certificate
AMCA accredited lab
AMCA membership certificate
Numerous Product Patents
CE Certification
CNAS lab accreditation
ATEX Certification
ISO 9001 quality management system
OHSAS 18001, Occupational Health and Safety Assessment Series
ISO 14001 environmental management system
Explosion-Proof Certification
Fire Fighting Certification
Case Study
This video is about a signature airport job of INFINAIR ventilation. We participated and competed the bidding for this ventilation project - Xinzheng Airport in 2014.
With the lack of fossil fuel and aggravation of pollution, nuclear power is the unique new power can be Large-scale applied with great prospect.
The Dongfeng Yueda KIA is an joint-venture of Dongfeng Motor Corporation、Jiangsu Yueda Investment Co. Ltd and Korean KIA Automatic Vehicle. Ltd, partly occupying respectively 25%、25%、50% of the company.