JCL Marine centrifugal fan JCL(CLQ) Series Marine Centrifugal Fan 1. PREFACE JCL(CLQ)series centrifugal fans for marine or navy use for marine or navy use series fans are designed and manufactured according to the standards of the state for GB11865«Marine Centrifugal Ventilator»,GB11864«Marine Explosion-proof Axial Flow Fans» «Rules and Regulations for the Construction and Classification of Sea-going Steel Ships»and«Rules and Regulations for the Construction of PLA Naval Ships». This series of ventilators have been examined and proved up to stand by the Register of Shipping of china and have got the certificate. They are also approved by the authority of shipping equipment and research Staff. JCZ(CZ) Series marine axial flow fan for ship use CBZ series marine explosion-proof axial flow fans JCL(CLQ)series marine centrifugal ventilator fan CBL series marine explosion-proof centrifugal fan CZF series marine axial-flow fans CZT Series Marine Ventilation fan for ship use CQ series Marine High pressure centrifugal ventilator CGDL Series marine or navy high efficiency low noise centrifugal fans CWL(CXL) series marine small-size Centrifugal fans CWZ series marine or navy small-sized axial fans CLZ series Marine high pressure axial-flow fans CDZ series Marine low noise axial fans for marine or navy use CBGD series marine explosion-proof (non-sparking) centrifugal fan CSL series centrifugal water power fans for marine use CSZ series water driven gas free axial flow fans for marine or navy use FT-A/B/C/D/E/F Type Marine mushroom air vent head
CZF Marine ventilation fanCZF Series Marine Centrifugal blower fan 1.General CZF series marine axial fans (simply the fans) are new-type & energy save, low-noise fans. They are suitable for every cabin air ventilating and exchanging on ships. They are also applicable in other places that suit. 2.Features CZF fans are characterized by their extreme compact structure, small size, light weight, less power consumption, smooth and reliable in operation, being suitable for reversing operating and excellent resistance to a certain degree shock and vibration. Main products list: JCZ(CZ) Series marine axial flow fan for ship use CBZ series marine explosion-proof axial flow fans JCL(CLQ)series marine centrifugal ventilator fan CBL series marine explosion-proof centrifugal fan CZF series marine axial-flow fans CZT Series Marine Ventilation fan for ship use CQ series Marine High pressure centrifugal ventilator CGDL Series marine or navy high efficiency low noise centrifugal fans CWL(CXL) series marine small-size Centrifugal fans CWZ series marine or navy small-sized axial fans CLZ series Marine high pressure axial-flow fans CDZ series Marine low noise axial fans for marine or navy use CBGD series marine explosion-proof (non-sparking) centrifugal fan CSL series centrifugal water power fans for marine use CSZ series water driven gas free axial flow fans for marine or navy use FT-A/B/C/D/E/F Type Marine mushroom air vent head 4-72 Series Industrial Centrifugal fan 4-79 Series Industrial Centrifugal blower 4-68 Series Industrial Centrifugal ventilator 9-19 Series Industrial high pressure centrifugal fan 9-26 Series Industrial high pressure centrifugal blower fan 9-13 Series Industrial high pressure air blower fan 9-10 Series Industrial high pressure exhaust fan G/Y4-73 Industrial high temperature boiler use centrifugal fan G/Y4-68 Industrial high temperature boiler ventilation fan T35-11 Industrial axial flow fan SJG Industrial mix flow fan HTF Series Industrial high temperature smoke exhaust fan DZ Series Industrial low noise axial flow ventilator C6-48 industrial dust exhaust blower fan Y8-39 Industrial boiler use centrifugal blower fan Y9-38 Industrial high temperature centrifugal ventilator fan Other ventilation accessory
CGDL Vessel ventilation fan Marine High efficiency low noise centrifugal fan 1. General CGDL Series marine or navy high-efficiency. Low-noise centrifugal fans (thereafter called the fan) are new-type &energy-save. Low-noise marine products. By the special design and process. The fans are characterized with high-efficiency (>80%), low-noise, no overload, stable running and meeting the marine conditions etc. They are suit-stable running and meeting the marine conditions etc. They are suitable for every cabin air ventilating and exchanging on ships. They are also applicable in other places that suit. 2. Features The fans are adopted with designed specially aerofoil blade and inlet. The dimension and line of casing are designed specially according to characteristic speeds. The impellers are processed specially so that air flows perfectly and the fans have the advantages of high-efficiency and low-noise. When power get to large flow, it gets down oppositely. Therefore, the motor can not be damaged because of overload. Main products list: JCZ(CZ) Series marine axial flow fan for ship use CBZ series marine explosion-proof axial flow fans JCL(CLQ)series marine centrifugal ventilator fan CBL series marine explosion-proof centrifugal fan CZF series marine axial-flow fans CZT Series Marine Ventilation fan for ship use CQ series Marine High pressure centrifugal ventilator CGDL Series marine or navy high efficiency low noise centrifugal fans CWL(CXL) series marine small-size Centrifugal fans CWZ series marine or navy small-sized axial fans CLZ series Marine high pressure axial-flow fans CDZ series Marine low noise axial fans for marine or navy use CBGD series marine explosion-proof (non-sparking) centrifugal fan CSL series centrifugal water power fans for marine use CSZ series water driven gas free axial flow fans for marine or navy use FT-A/B/C/D/E/F Type Marine mushroom air vent head 4-72 Series Industrial Centrifugal fan 4-79 Series Industrial Centrifugal blower 4-68 Series Industrial Centrifugal ventilator 9-19 Series Industrial high pressure centrifugal fan 9-26 Series Industrial high pressure centrifugal blower fan 9-13 Series Industrial high pressure air blower fan 9-10 Series Industrial high pressure exhaust fan G/Y4-73 Industrial high temperature boiler use centrifugal fan G/Y4-68 Industrial high temperature boiler ventilation fan T35-11 Industrial axial flow fan SJG Industrial mix flow fan HTF Series Industrial high temperature smoke exhaust fan DZ Series Industrial low noise axial flow ventilator C6-48 industrial dust exhaust blower fan Y8-39 Industrial boiler use centrifugal blower fan Y9-38 Industrial high temperature centrifugal ventilator fan Other ventilation accessory
Product description High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Product feature 1.High efficiency, low noise, easy operation 2.Adjustable blades Application High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Other information Export records Saudi arabia, vietnam, south korea, india, philippines, iran and so on
Product description High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Product feature 1.High efficiency, low noise, easy operation 2.Adjustable blades Application High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Other information Export records Saudi arabia, vietnam, south korea, india, philippines, iran and so on
Product description High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Product feature 1.High efficiency, low noise, easy operation 2.Adjustable blades Application High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Other information Export records Saudi arabia, vietnam, south korea, india, philippines, iran and so on
Product description High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Product feature 1.High efficiency, low noise, easy operation 2.Adjustable blades Application High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Other information Export records Saudi arabia, vietnam, south korea, india, philippines, iran and so on
Product description High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Product feature 1.High efficiency, low noise, easy operation 2.Adjustable blades Application High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Other information Export records Saudi arabia, vietnam, south korea, india, philippines, iran and so on
CDZ Ship low noise ventilation fan CDZ MARINE LOW NOISE AXIAL FLOW FAN 1.PREFACE CDZ series axial-flow fans for marine or navy use series fans are designed and manufactured according to the standards of the state for GB11865«Marine Centrifugal Ventilator»,GB11864«Marine Explosion-proof Axial Flow Fans» «Rules and Regulations for the Construction and Classification of Sea-going Steel Ships»and«Rules and Regulations for the Construction of PLA Naval Ships». This series of ventilators have been examined and proved up to stand by the Register of Shipping of china and have got the certificate .They are also approved by the authority of shipping equipment and research Staff. Main products list: JCZ(CZ) Series marine axial flow fan for ship use CBZ series marine explosion-proof axial flow fans JCL(CLQ)series marine centrifugal ventilator fan CBL series marine explosion-proof centrifugal fan CZF series marine axial-flow fans CZT Series Marine Ventilation fan for ship use CQ series Marine High pressure centrifugal ventilator CGDL Series marine or navy high efficiency low noise centrifugal fans CWL(CXL) series marine small-size Centrifugal fans CWZ series marine or navy small-sized axial fans CLZ series Marine high pressure axial-flow fans CDZ series Marine low noise axial fans for marine or navy use CBGD series marine explosion-proof (non-sparking) centrifugal fan CSL series centrifugal water power fans for marine use CSZ series water driven gas free axial flow fans for marine or navy use FT-A/B/C/D/E/F Type Marine mushroom air vent head 4-72 Series Industrial Centrifugal fan 4-79 Series Industrial Centrifugal blower 4-68 Series Industrial Centrifugal ventilator 9-19 Series Industrial high pressure centrifugal fan 9-26 Series Industrial high pressure centrifugal blower fan 9-13 Series Industrial high pressure air blower fan 9-10 Series Industrial high pressure exhaust fan G/Y4-73 Industrial high temperature boiler use centrifugal fan G/Y4-68 Industrial high temperature boiler ventilation fan T35-11 Industrial axial flow fan SJG Industrial mix flow fan HTF Series Industrial high temperature smoke exhaust fan DZ Series Industrial low noise axial flow ventilator C6-48 industrial dust exhaust blower fan Y8-39 Industrial boiler use centrifugal blower fan Y9-38 Industrial high temperature centrifugal ventilator fan Other ventilation accessory
CQ Ship blower centrifugal fan Marine High pressure Centrifugal fan 1. FOREWORD CQ series marine centrifugal ventilators or simply the ventilator is capable of blowing air, ocean air containing salt vapour, and corrosive air which contains oil vapour and a small quantity of acid steam generated by the natural evaporation of the batteries. So it can be used for ventilation of various machinery room and each compartment of boats and ships as well as other likes spaces. The ventilator is designed and manufactured according to GB11865-89(Marine centrifugal fans) and the Rules and Regulations for the Construction and classification of Sea-going Steed ships approved by the Register of the People’s Republic of China. 2. WORKING CONDITIONS Medium temperature: -25? ~ +50? Max relative humidity: 95% Periodical swing: ±22.5° Continued transversal incline: ±15° Continued longitudinal incline:±10° Vibration: existent Impact: existent Main products list: JCZ(CZ) Series marine axial flow fan for ship use CBZ series marine explosion-proof axial flow fans JCL(CLQ)series marine centrifugal ventilator fan CBL series marine explosion-proof centrifugal fan CZF series marine axial-flow fans CZT Series Marine Ventilation fan for ship use CQ series Marine High pressure centrifugal ventilator CGDL Series marine or navy high efficiency low noise centrifugal fans CWL(CXL) series marine small-size Centrifugal fans CWZ series marine or navy small-sized axial fans CLZ series Marine high pressure axial-flow fans CDZ series Marine low noise axial fans for marine or navy use CBGD series marine explosion-proof (non-sparking) centrifugal fan CSL series centrifugal water power fans for marine use CSZ series water driven gas free axial flow fans for marine or navy use FT-A/B/C/D/E/F Type Marine mushroom air vent head 4-72 Series Industrial Centrifugal fan 4-79 Series Industrial Centrifugal blower 4-68 Series Industrial Centrifugal ventilator 9-19 Series Industrial high pressure centrifugal fan 9-26 Series Industrial high pressure centrifugal blower fan 9-13 Series Industrial high pressure air blower fan 9-10 Series Industrial high pressure exhaust fan G/Y4-73 Industrial high temperature boiler use centrifugal fan G/Y4-68 Industrial high temperature boiler ventilation fan T35-11 Industrial axial flow fan SJG Industrial mix flow fan HTF Series Industrial high temperature smoke exhaust fan DZ Series Industrial low noise axial flow ventilator C6-48 industrial dust exhaust blower fan Y8-39 Industrial boiler use centrifugal blower fan Y9-38 Industrial high temperature centrifugal ventilator fan Other ventilation accessory
CSZ Ship water driven gas free fan CSZ Marine Water driven gas free Fan 1.Fan general CSZ series fan have high anti-hazard classification, sound anti-wobble, anti-vibration and anti-impact performance. The fan simple structure. Low weight, simplicity of operation as well as its port-ability ( normally only one operator required ) ,driven direct by fire protection water, this ventilator depends on no other power with sealed bearings. It largely reduced the maintenance job. With a wide applicability, this type of ventilator can work at ideal for ducting flammable and explosive gases or steam as well as poisonous or other harmful gases. 2.Fan structure CSZ Series ventilator fan composed of water turbine frame, casing, rotor and impeller, the water turbine precisely cast of anti-corrosion copper alloy and the casing welding of austenitic stainless steel, the impeller cast of high strength sealing a aluminum alloy. The water turbine and the rotor adopt two degrees of sealing, contact sealing and padding A safety brass ring fitted between the casing and impeller, with the structure of no-spark design CSZ ventilator fan serve either supply or exhaust fan, but they can’t displace use. Main products list: JCZ(CZ) Series marine axial flow fan for ship use CBZ series marine explosion-proof axial flow fans JCL(CLQ)series marine centrifugal ventilator fan CBL series marine explosion-proof centrifugal fan CZF series marine axial-flow fans CZT Series Marine Ventilation fan for ship use CQ series Marine High pressure centrifugal ventilator CGDL Series marine or navy high efficiency low noise centrifugal fans CWL(CXL) series marine small-size Centrifugal fans CWZ series marine or navy small-sized axial fans CLZ series Marine high pressure axial-flow fans CDZ series Marine low noise axial fans for marine or navy use CBGD series marine explosion-proof (non-sparking) centrifugal fan CSL series centrifugal water power fans for marine use CSZ series water driven gas free axial flow fans for marine or navy use FT-A/B/C/D/E/F Type Marine mushroom air vent head 4-72 Series Industrial Centrifugal fan 4-79 Series Industrial Centrifugal blower 4-68 Series Industrial Centrifugal ventilator 9-19 Series Industrial high pressure centrifugal fan 9-26 Series Industrial high pressure centrifugal blower fan 9-13 Series Industrial high pressure air blower fan 9-10 Series Industrial high pressure exhaust fan G/Y4-73 Industrial high temperature boiler use centrifugal fan G/Y4-68 Industrial high temperature boiler ventilation fan
CBGD Marine explosion-proof centrifugal fan MARINE EXPLOSION-PROOF HIGH EFFICIENCY LOW NOISE CENTRIFUGAL FAN 1. General TYPE CBGD marine explosion-proof or high efficiency low noise centrifugal fans are explosion-proof products for marine use which developed from the CGDL series marine centrifugal fans. The series are designed and manufactured according to, and ship regulations of Chinese and international. Non-sparking fans are suitable for every cabin air ventilating and exchanging on ships which containing combustible and explosive gas. They are also applicable in other places that suit. This series fans have been examined and proved up to standard by the Explosion-proof inspection Authority of the PRC and have got the certificate of inspection. They have also been examined by the Register of Shipping of PRC and have got the certificate. Main products list: JCZ(CZ) Series marine axial flow fan for ship use CBZ series marine explosion-proof axial flow fans JCL(CLQ)series marine centrifugal ventilator fan CBL series marine explosion-proof centrifugal fan CZF series marine axial-flow fans CZT Series Marine Ventilation fan for ship use CQ series Marine High pressure centrifugal ventilator CGDL Series marine or navy high efficiency low noise centrifugal fans CWL(CXL) series marine small-size Centrifugal fans CWZ series marine or navy small-sized axial fans CLZ series Marine high pressure axial-flow fans CDZ series Marine low noise axial fans for marine or navy use CBGD series marine explosion-proof (non-sparking) centrifugal fan CSL series centrifugal water power fans for marine use CSZ series water driven gas free axial flow fans for marine or navy use FT-A/B/C/D/E/F Type Marine mushroom air vent head 4-72 Series Industrial Centrifugal fan 4-79 Series Industrial Centrifugal blower 4-68 Series Industrial Centrifugal ventilator 9-19 Series Industrial high pressure centrifugal fan 9-26 Series Industrial high pressure centrifugal blower fan 9-13 Series Industrial high pressure air blower fan 9-10 Series Industrial high pressure exhaust fan G/Y4-73 Industrial high temperature boiler use centrifugal fan G/Y4-68 Industrial high temperature boiler ventilation fan T35-11 Industrial axial flow fan SJG Industrial mix flow fan HTF Series Industrial high temperature smoke exhaust fan DZ Series Industrial low noise axial flow ventilator C6-48 industrial dust exhaust blower fan Y8-39 Industrial boiler use centrifugal blower fan Y9-38 Industrial high temperature centrifugal ventilator fan Other ventilation accessory
CSL Marine water power gas free fan Type CSL centrifugal water power fans for marine use 1. Fan general CSL series centrifugal fans, this series enjoys high anti-explosive grades and is capable of directly removing or ducting flammable and explosive gaseous mixture or steam as well as those poisonous or harmful gases, being important system equipment for the oil tanker and chemical vessels. 2. Fan structure CSL series explosion-proof centrifugal ventilator fan enjoys high anti-hazard classification, sound anti-corrosion, anti-wobble, anti-vibration and anti-shock performance. The whole fan is featured in simple and compact structure, low weight, simple operation as well as good move ability driven directly by fire protection water, this ventilator is capable of ducting such dangerous gases as flammable and explosive gases or steam. CSL ventilator fan is composed of water turbine, frame, casing, rotor, impeller, etc. the water turbine is precisely cast of anticorrosion copper alloy, the casing is soldered of austenitic stainless steel. And the impeller is cast of high strength aluminum alloy, with the whole structure of no-spark design the angles for air-outlet are r90?for air supply and 225? for air exhaust as a result, this type of ventilator can’t change the model. Main products list: JCZ(CZ) Series marine axial flow fan for ship use CBZ series marine explosion-proof axial flow fans JCL(CLQ)series marine centrifugal ventilator fan CBL series marine explosion-proof centrifugal fan CZF series marine axial-flow fans CZT Series Marine Ventilation fan for ship use CQ series Marine High pressure centrifugal ventilator CGDL Series marine or navy high efficiency low noise centrifugal fans CWL(CXL) series marine small-size Centrifugal fans CWZ series marine or navy small-sized axial fans CLZ series Marine high pressure axial-flow fans CDZ series Marine low noise axial fans for marine or navy use CBGD series marine explosion-proof (non-sparking) centrifugal fan CSL series centrifugal water power fans for marine use CSZ series water driven gas free axial flow fans for marine or navy use FT-A/B/C/D/E/F Type Marine mushroom air vent head 4-72 Series Industrial Centrifugal fan 4-79 Series Industrial Centrifugal blower 4-68 Series Industrial Centrifugal ventilator 9-19 Series Industrial high pressure centrifugal fan 9-26 Series Industrial high pressure centrifugal blower fan 9-13 Series Industrial high pressure air blower fan 9-10 Series Industrial high pressure exhaust fan G/Y4-73 Industrial high temperature boiler use centrifugal fan G/Y4-68 Industrial high temperature boiler ventilation fan
Product Usage: 1. Dust collection machines, textile machinery, coating machinery, other 2. Pressure transmission, absorption Features: 1. Small amount of wind, pressure. 2. Outlet direction can be adjusted. 3. Small amount of wind multi-stage blower can be varied to paragraph 2. 4.
High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. About product feature:high efficiency, low noise, easy operation ;adjustable blades High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Zibo dingxian mechanical equipment co., ltd which was founded in 1985, mainly designs and manufactures centrifugal fans and axial flow fans which are applied to industrial systems, which is the senior member of china general machinery industry association (cgma). As one of the main large fan manufacturers in north china, which owns more than 200 employees and the production capacity of 15000 sets one year, we have an advanced air flow test laboratory in our company. We master mature fan designing, testing, manufacturing technology, and can design and manufacture multipurpose fans according to users' requirements. So, we are able to meet users' complex and professional applications.
High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. About product feature:high efficiency, low noise, easy operation ;adjustable blades High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Zibo dingxian mechanical equipment co., ltd which was founded in 1985, mainly designs and manufactures centrifugal fans and axial flow fans which are applied to industrial systems, which is the senior member of china general machinery industry association (cgma). As one of the main large fan manufacturers in north china, which owns more than 200 employees and the production capacity of 15000 sets one year, we have an advanced air flow test laboratory in our company. We master mature fan designing, testing, manufacturing technology, and can design and manufacture multipurpose fans according to users' requirements. So, we are able to meet users' complex and professional applications.
High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. About product feature:high efficiency, low noise, easy operation ;adjustable blades High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Zibo dingxian mechanical equipment co., ltd which was founded in 1985, mainly designs and manufactures centrifugal fans and axial flow fans which are applied to industrial systems, which is the senior member of china general machinery industry association (cgma). As one of the main large fan manufacturers in north china, which owns more than 200 employees and the production capacity of 15000 sets one year, we have an advanced air flow test laboratory in our company. We master mature fan designing, testing, manufacturing technology, and can design and manufacture multipurpose fans according to users' requirements. So, we are able to meet users' complex and professional applications.
Brushless DC Fan
Product description High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. About product feature:high efficiency, low noise, easy operation ;adjustable blades High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Zibo dingxian mechanical equipment co., ltd which was founded in 1985, mainly designs and manufactures centrifugal fans and axial flow fans which are applied to industrial systems, which is the senior member of china general machinery industry association (cgma). As one of the main large fan manufacturers in north china, which owns more than 200 employees and the production capacity of 15000 sets one year, we have an advanced air flow test laboratory in our company. We master mature fan designing, testing, manufacturing technology, and can design and manufacture multipurpose fans according to users' requirements. So, we are able to meet users' complex and professional applications.
Product description High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. About product feature:high efficiency, low noise, easy operation ;adjustable blades High-temperature fans are generally used in kaji furnace, high-pressure forced ventilation and the transport for meterials , wind and non-corrosive, not spontaneous, non-explosive, gluten-free gas. Zibo dingxian mechanical equipment co., ltd which was founded in 1985, mainly designs and manufactures centrifugal fans and axial flow fans which are applied to industrial systems, which is the senior member of china general machinery industry association (cgma). As one of the main large fan manufacturers in north china, which owns more than 200 employees and the production capacity of 15000 sets one year, we have an advanced air flow test laboratory in our company. We master mature fan designing, testing, manufacturing technology, and can design and manufacture multipurpose fans according to users' requirements. So, we are able to meet users' complex and professional applications.