DC FANS
DC axial fan is a device operated by permanent, built-in magnets that rely on magnets to attract and repel the rotor. Thus. It allows DC fan has advantages of low consumption and power-saving, low electromagnetic interference, and low noise. High efficiency and long lifetime. The typical voltage of a DC fan is 5V,12V,24V,48V. DC axial fan sizes range from 20mm to 280mm.DC fan is very sophisticated in recent years. It can be applied to home appliance, AIoT, Industry 4.0, and green energy
DC blowers
DC centrifugal blower is a device that its air inlet and outlet are in a vertical wind direction, The device pulls air in from the side, and forces it out at a 90°angle. Its structure allows blowers to create airflow under high-pressure conditions directly. The main feature is the high energy efficiency, long lifetime and intelligent motion control, etc. The typical voltage of a DC blower is 5V,12V,24V,48V. DC blower's sizes range from 25mm to 145mm. The benefits of specifying and designing dc blowers as an alternative to standard fans become self-evident.DC blowers have been growing used in vehicle telecommunications and medical equipment and so on.
EC fans and EC blowers
EC Fans is an electrical commutation fan with built-in AC to DC circuit, The input is AC, Which is converted to DC through the built-in circuit. And then it supplies DC power for the fan to work. It combines the benefits of the convenience of an AC fan and the efficiency of a DC fan. The main feature is the high energy efficiency. The typical voltage of an EC fan is 100VAC 120VAC 220VAC 230VAC and 240VAC. EC fan size ranges from 60 to 254mm. It widely used on heat-pump dryer freezers and air-conditioning applications
AC fans&AC blowers
AC fans&blowers are driven by the power which with a changing voltage of negative and equal positive value. Normally the change is sinusoidal. There is no circuit board in it to generate a magnetic field. Typical input voltages are 100VAC 120VAC 220VAC 230VAC and 240VAC with a frequency of 50Hz or 60Hz. The AC fans&blowers size range from 80mm to 280mm. Some of the typical applications are industrial equipment, white goods, refrigeration, and medical devices.
Cross Flow fan
A crossflow fan is a small high-pressure centrifugal fan with a forward multi-wing impeller, The air enters the impeller from one side of the outer edge of the rotor, And then passes through the interior of the impeller and forces it out. The air is subjected to the force of the blades twice in the impeller. The length of the cross-flow fan can be adjusted and customized at will. And it will not be affected by the airflow. The diameter of the cross-flow fan ranges from 25mm to 100mm. It can be driven by both AC and DC. It’s welcome used for feature high pressure and quiet operation etc. They are ideal for HVAC(heating, ventilating, and air-conditional) industrial Bitcoin miner and melting machine, etc
Customized fans
We devote time and effort to the research and development of aerodynamics technology to help clients get the best cooling solutions, The different types of fans&blowers have renowned advantages depending on your unique application. Our design focuses on high-efficiency, eco-friendly, and high reliability, and energy-saving qualities, with low-noise and a long lifetime. No matter what challenges our clients faced. Our teams with more than 15 years of experience will provide significant design and outstanding value-added service to help clients meet their market demands.
Impellers and accessories
we provide Fan impellers range from 45mm to 280mm. And provide fan finger guard, connector, etc.
Packaging
OEM/ODM orders welcome , Our teams with more than 15 years of experience will provide significant design and outstanding value-added service to help clients meet their market demands.
With the development of technology and innovation, so does the need for specialized cooling. Welch’s broad ranges of standard product and custom cooling solutions that provide a number of options to meet the unique requirements of today’s industries.our fastest growing focused application markets and some bestseller fan and blower products for your better ideas of more potential business to explore.
ORDERS, DELIVERY & RETURNS
Certificates
Our products are certified with UL,CE RoHS,REACH,PAHs,IP65/67/68 etc.We ensure products meet with internationalization standards
Custom options
Available options vary by model. Custom options may be available upon request. Please contact Welch for details
Technical function options
Tachometer Output Signal, Locked Rotor Alarm Signal, PWM Speed Control, FG speed measurement, RD alarm, IPXX waterproof, Environmental Coatings, etc,
Latest news
Welch offer you best cooling solution and allows you to make your smart life unimpeded and more convenient
Welch’s fan products include DC fan,AC fan,DC blower,AC blower, EC fan&blower,Cross flow fans, thin centrifugal fan and fan array. Our design focuses on its high reliability and long life time, with low-noise, high-efficiency,energy-saving and eco-friendly qualities. We can design fans according to different demands from our clients, and they will endure in harsh environmental requirements.