- Industrial Centrifugal Fan -- Low Pressure -- High Pressure -- Plug Type -- FRP Centrifugal Fan
- Inline Fan - Axial Fan - Centrifugal Fan - Mixed Flow Fan
- Roof & Sidewall Fan -- Roof Fan -- Sidewall Fan
- DWDI AHU Fan
- Tunnel Fan &
- Induced Fan &
Kitchen Fume Extractor Fan
- EC Fan
- Intelligent Control
- Fresh Air and Heating Unit
- INFINAIR Motor
Backward Curved SWSI FRP Centrifugal Fan - Wheel Type F - BCSFS
Airflow Range: 1,000 ~ 77,000 m³/h (588 ~ 45,294 CFM)
Air Pressure Range: 100～3,080 Pa (0.4～12.37 in.WG.)
Operating Temperature: -20 ~ 100 ℃
Drive Type: Belt / Direct Driven
Installation Methods: Base Mount
Applications： Industrial anti-corrosion/ Explosion Resistant
For reference only. Please contact our sales rep for detailed performance fan curve. Thank you.
- Design of backward curved wheel
The fan adopts advanced technology. Design of backward curved centrifugal wheel is optimized by means of CFD hydro-field simulating. The blade section of the backward curved wheel is a curve with a certain radian. The included angle between airflow direction and the linear speed direction of the blade is an obtuse angle. The design is more accordant with the aerodynamic characteristics, and has lower noise, and stable airflow.
- High-quality FRP material
The fan is made of novel composite material, i.e., glass fiber-reinforced composite resin, and has the characteristics of high intensity, light weight, corrosion resistance, etc. The mechanical property of INFINAIR wheel is similar to that of steel fan, and its linear velocity is up to 78m/s. Different corrosion resistance formulas are added according to different corrosion properties of different gases in the making process so as to achieve an optimal corrosion resistance effect.
- High balancing level
Each wheel is subjected to dynamic balance test. We insist to the balancing level of G4.0 (Typical products are balanced to G6.3 only). Long-term quiet and stable running of the fan is ensured fundamentally.
- Light weight and high performance
The weight of FRP is only about 1/4 that of steel, so that FRP wheel is lighter. Shaft power needed by starting is remarkably lowered, so that the efficiency is improved and energy consumption is lowered. The expansion coefficient of FRP is smaller than that of steel, so that fitting gap between air inlet and wheel is reduced, aerodynamic performance further enhanced, turbulent flow reduced, and the noise lowered.
- High intensity
Fan body adopts an FEA theological design structure. The fan is molded from high-quality FRP material with advanced formula and relatively small thermal expansion coefficient by using a mold, so that stable structure and high intensity are achieved.
- Excellent corrosion resistance
The corrosion resistance of BCSF FRP fan is far higher than that of stainless steel fan, and its service life is 6-7 times that of stainless steel fan in most -- application environments; Housing and access door in components contacted with corrosive gas are made of FRP. Metal parts are covered by FRP coatings and are not exposed in corrosive gas. Shaft is provided with FRP shaft sleeve. Shaft end is covered by FRP coating.
- Good gas leakage
Fan housing joint is bonded by FRP seamless bonding technology, and shaft seal is arranged at a position where fan shaft passes, so that gas leakage is prevented.
- High reliability
- -- Fan shaft is subjected to finish turning & hardening and tempering. Maximum load surpasses 25% of limit speed;
- -- Bearing seal in bearing box can be lubricated. Service life more than L10：80000 hours;
- -- The fan is supported by stable channel steel base, so that stable running of the fan is ensured.
- High efficiency and energy saving
The fan adopts backward curved wheel with high balancing level and high efficiency. In combination with housing designed by CFD flow field simulation and inlet Venturi pipe, fan efficiency is over 69%, can reach 90% in maximum, and high-efficiency and energy-saving running of the fan is ensured.
- Fan Type
Glass fiber reinforced plastic anti-corrosion fan shall be single inlet centrifugal and belt drive or direct drive. The fan shall be acid, alkali, organic solvent gas resistant. All parts contacted with gas shall be corrosion resistant treating. The inlet shall be smooth, arc shape for fluent air intake.
- Quality Standards
Glass fiber reinforced plastic anti-corrosion fan shall be tested in accordance with AMCA Standard 210 and 300. The manufacturer must own the Production license for industrial Product and ISO9001 quality system authentication.
The housing and wheel shall be constructed of glass fiber reinforced plastic. The pitch of the layer shall not be lower than 50%.This material shall add different corrosion resistant components according to different gas compositions. The material shall not change color, spot and come off under the designed operation.
Fan wheel shall be centrifugal, backward curved, glass fiber reinforced plastic. The wheel shall be balancing tested statically and dynamically to level G4.0 as AMCA204 standard. The fan shall keep stable airflow and low noise at maximum speed. The fan shall effectively avoid performance reduction with operating point slide. Wheel appearance shall be even color and luster, bright and clean surface, no crack, no gap, burr. Bubbles (diameter>3mm) shall not exist.
- Fan Housing
Fan housing shall be constructed of glass fiber reinforced plastics, the thickness and strength shall be strong enough to support weight at maximum operating speed. Fan housing shall adopt glass fiber reinforced plastics seamless sticking technology for preventing air leakage. All the metal parts in the housing shall be covered by two layers (0.2mm) of glass fiber reinforced plastics. Cover shall be smooth transition with fan. Shaft hole shall not be larger than the diameter 2mm of shaft sleeve and shall add shaft seal.
Fan inlet shall be strictly designed according to aerodynamic performance, constructed of glass fiber reinforced plastics. The surface shall be smooth and streamline with good rectification results, reduce turbulence effectively to improve fan efficiency and reduce noise.
- Transmission Device (Only for belt drive type)
Fan shaft shall be heat treated through soaking furnace. The fan shaft shall be balanced together with the wheel, and the shaft design speed shall at least exceed 25% of the maximum fan operation speed. Shaft shall be furnished with fiber-glass reinforced plastic shaft sleeve, which shall be at least 10mm out of the housing. The shaft inside of the chamber and the end shall be corrosion resistant. Two-bearing units（including two bearings and bearing box） shall be used to support fan shaft. The bearings shall be selected for a minimum (L-10) life in excess of 80,000 hours at maximum cataloged operating speed.
Motor shall be closely matched to the fan load, IP54, and insulation class F.Motor and drives shall be out of airflow, avoiding erosion of corrosive gas, extending durability.
Permanently fixed aluminum nameplate shall be fixed on fan body clearly display fan mark, product model and serial number (i.e.: unique ID for each fan), so that the customer can use this number to find out the parts used.
- Acceptable Manufacturers
Qualified suppliers shall have an AAA credit rating. Providing INFINAIR or similar products, with their design based on BCSF models of INFINAIR.
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
INFINAIR is an innovative company which provides environmental and intelligent solutions for all aspects of ventilation systems in both private and public sector. They have been INFINAIR’s core values and commitments to our customers over the years.
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
Sales & Service Office:
Our sales and after-sale service network promise easy access to customers anywhere in China. They are located in various locations: Shanghai, Beijing, Shenchen, Jilin, Liaoning, Tianjin, Shanxi, Henan, Shaanxi, Shandong, Jiangsu, Anhui, Zhejiang, Fujian, Zhongqing, Sichuan, Hunan, Hubei, Guangdong, Guangxi, Hainan, Guizhou and XinJiang.
To become the most trusted brand of professional air movement & control solution provider.
To provide the most reliable and user-friendly air movement & control system.
Product value proposition of INFINAIR: Reliable, Convenient, and Novel.
At INFINAIR, we prioritize reliability in our products and services. INFINAIR focuses on high-quality system construction, we commit to the constant improvement of product and service reliability:
R&D ability as the basis of product reliability:
At INFINAIR, R&D ability is at the core of our product reliability. Thanks to the extensive experience, INFINAIR has mastered CFD, FEA and CAD technology, fundamentally and significantly improving product reliability. INFINAIR’s air performance lab and noise lab both play a part in forming a solid foundation for product reliability in terms of test scope and precision, as well as in overall investment and construction scale. Our labs are accredited by CNAS, and INFINAIR also boasts the first lab in Mainland China accredited by the AMCA.
Technology and Equipment Reliability Guarantee:
By continually investing in improvements to processing technology and equipment, INFINAIR constantly increases and improves processing capability and precision, assembly methods, production processes, online monitoring, and pre-distribution testing, guaranteeing an ever-increasing level of product reliability.
Third party certification as further proof for reliability:
INFINAIR possesses various third-party qualifications including: Industrial Product Production License, Explosion-Proof Production License, as well as certifications such as ISO 9001, ISO 14001 and OHSAS 18001 qualifications. Most INFINAIR products are compliance-certified by a third party. INFINAIR is the industry leader in terms of both the number of certifications and how long we have held these certifications.
Quality-management system and ongoing reliability:
INFINAIR utilizes an ISO 9001-compliant quality management system, certified by SGS. We constantly carry out 5S and lean production Six Sigma improvement, meticulously establishing a sustainable quality management system.
-- Complete product configuration and varied impeller forms.
-- Adaptable product selection.
-- Flexible lead time.
-- Quick customization.
-- Prudent product accessory options.
-- By your side service team and quick courier delivery service.
At INFINAIR, we not only pursue products that are like no other, we also pursue innovation. Both of these pursuits aim to give our clients better value.
-- Greater aerodynamic performance, energy-saving ability, and noise reduction ability.
-- Simplified, rationally-developed structures.
-- More convenient installation and use.
-- Low maintenance, low total cost of ownership.
-- Adaptable and pragmatic post-sale service.
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.
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;
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.
--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
CNAS lab accreditation
ISO 9001 quality management system
OHSAS 18001, Occupational Health and Safety Assessment Series
ISO 14001 environmental management system
Fire Fighting Certification
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.