How to design a cooling fan, can achieve prevent noise

We will attend the Automechanika 2023 in Turkey on June 8-11, we would like to invite all dear customers to visit our booth (Hall 11 E208). Exhibition Center: Tüyap Fair Convention and Congress Center Adress: Cumhuriyet Mahallesi Eski Hadımköy Yolu Caddesi 9/1, 34500 Büyükçekmece - İSTANBUL

In order to celebrate the 73rd National Day, our company will have a 3-day holiday from October 1st to 3th. During this period, the company will not arrange for shipment. But if you need to inquire or order confirmation, you can still contact our salesman.

2021年7月1日是中国共产党成立100周年。我们回望历史，更加懂得如今辉煌的来之不易，更加清楚新时代需要我们一起努力。 祝伟大的党生日快乐，愿祖国永远繁荣昌盛！ July 1, 2021, marks the 100th anniversary of the founding of the Communist Party of China. As we look back, it is better to understand that today's glory has not come easily and that the new era requires our joint efforts. Happy birthday to our great Party and may our motherland always is prosperous.

The radiator fan of Volkswagen Multivan 7E0121205J, a new product in great demand, has been developed and put into production. Customers in need, please contact our sales staff immediately, seize the market opportunity.

On October 22, 2021, we will participate in the International European Auto Parts Supply Chain Carnival at booth A61 in Guangzhou, which is the largest and most professional exhibition of European car models in China. Tongchi company has been committed to the development and sales of European car radiator fans, of course, will not miss this exhibition. We are always developing new products to meet the needs of our customers.

October 1, 2021, will be the 72nd anniversary of the founding of the People's Republic of China. We are very lucky to see the prosperity of our motherland. We hope our motherland will become better and better and our people will become happier and happier.

Late last month, we received a package from a customer in Turkey. Inside this package is the new product Audi 7E0121205J that the customer is eager to develop. He said there was a lot of demand for the product, but he spoke to many suppliers and got feedback that they didn't develop it. So he bought the original product and sent it to us, hoping we could develop it. For this model, our factory will take the way of pre-sale, customers who confirm the order before the product is launched will enjoy our most preferential price.

Our whole staff actively cooperated with the quality management certification staff and re-certified the IATF 16949 quality management certification system on August 15, 2021. Tongchi has always been strict in controlling the quality requirements of our products and has been recognized by our customers and the industry. But we will continue to provide the best quality products to our customers without pride and arrogance.

This month our company invested a lot of money to buy brand new production equipment to produce better auto radiator fans. Why do we invest a lot of money to update our production equipment? 1. Overly old equipment requires regular maintenance and overhaul, and the entire process and system needs to be shut down, which is thought to reduce production, lower production and raise costs. 2. The scrapping of products, in addition to the possible loss of materials, the most direct loss is the loss of equipment efficiency, scrapped products occupied by the use of equipment is meaningless, not only equivalent to equipment waiting in downtime, but also cause equipment wear and energy waste. In the production system, we should pay attention to the efficiency of the equipment, the equipment is the enterprise's minting machine, we should do everything possible to make the minting machine make more coins, make good money instead of bad money.

From May 9 to May 11, 2021, our company will participate in the Auto Parts Exhibition in Shenyang International Exhibition Center. Our booth is located at T83 in Hall E3. At that time, our company will bring the latest developed products to the exhibition, welcome new and old customers to visit.

On April 17, Mr. Zhang, the chairman of Tongchi, was invited to participate in the Business Thinking Tour and Networking Meeting for Leading Entrepreneurs held by the Ministry of Industry and Information Technology. Here various outstanding entrepreneurs communicate with each other to achieve resource sharing, complementary advantages and common development. Mr. Zhang always adheres to：When walking in the company of other men, there must be one i can learn something from. I Shall pick out his merits to follow and his shortcomings for reference to overcome my own.

Dear Customers, Tomb-sweep Day is one of the traditional Chinese festivals and one of the most important festivals for ancestor worship and tomb sweeping. Our company will be closed from April 3rd to April 5th for 3 days. We apologise for any inconvenience caused to you during this period. Best Regards Wenling Tongchi Auto Air Conditioner Manufacturing Co.,Ltd

For more than 20 years, we have been developing the latest products to meet the needs of the market. This time, through the joint efforts of all our engineers and staff, we have developed the new energy car engine radiator fan - Tesla Model 3 and Model Y. The technical difficulties of the new energy radiator cooling fans are: low power consumption, narrow operating temperature range, high temperature control accuracy (±2°C) and high integration with the vehicle thermal management system. The engineers of our aftermarket electric radiator fan factory are working on these technical difficulties and are making breakthroughs in the following areas: optimizing the structure of the brushless motor; optimizing the pneumatic structure of the fan; optimizing the PWM control system; and improving the communication protocol. If you are interested in our new auto aftermarket radiator cooling fan assembly, please contact our sales staff, who will be at your service at any time!

Dear customers. As the Chinese New Year is forthcoming, we will have a long holiday from Feb 1 to Feb 20,2021 and we will resume to work on Feb 21,2021. We hereby sincerely thank for your great support and cooperation in the last year. We will work harder to provide you with the best service and the best quality products. For something urgent, please call us, and we will give you feedback asap. Any inconvenience caused to you during the holiday, please understand. Hope you happy family, good health, all the best, and prosperous business in the new year!

This time our factory parts experts are testing again, this time we are testing the Rolls-Royce Phantom 1000W electronic fan. We always adhere to the principle of quality first to produce the best products to make our customers satisfied.

We welcome new and old customers to our booth D1.159-1 to communicate. During the epidemic, please wear masks and protect yourselves! And we hope the show will be a great success!

In November, the Aston Martin & Land Rover GM fans developed by TOCH Auto were finally shipped perfectly after a lot of hard work by all the staff. TOCH Fans has always been committed to providing customers with the most perfect and highest quality products, customer satisfaction is our greatest pursuit!

TOCH Radiator Fan Company has been in the industry for more than 20 years and is well loved by our customers. In order to give our customers the best products at the lowest cost, many core components have been independently developed by TOCH

In order to strengthen the team cohesion, at the same time to enhance the exchange of feelings between employees, active company atmosphere, strengthen the construction of company culture