October 10, 2020, Yueqing Tongda Wire Electric Factory celebrate its 30th anniversary. This is a proud day for all Tongda people.
Since our establishment in 1990, Yueqing Tongda has been focus on the development and production of WEIPENG micro switches, waterproof micro switches, rocker switches, push button switches, magnetic switches and custom switches. We always believed that only when we are careful operators now that can assured consumers in the future. For celebrate Tongda’s birthday, we organized many activities in the factory, such as: ①the blossoming of peach blossoms, ②crossing the river by touching the stones, ③eating "snakes", ④carrying paper cups with balloons, ⑤grabbing water bottles, ⑥tug-of-war and so on. All employees and management participated actively and bravely, and the atmosphere on site was very warm.

At noon, we held a celebration lunch. At the luncheon, Chairman Chen delivered a speech. We held an award ceremony for old employees. Among them, there are 15 employees who have worked in the factory for more than 20 years, 14 employees for more than 15 years, and a total of 38 employees for more than 10 years. These are the most precious wealth of our company. The cornerstone of our success! Finally, the luncheon ended happily in the talent show and lottery activities of various departments.

Today, we would like to thank all customers and suppliers. It is because of your care and help that Tongda has achieved today's results; thanks to all the colleagues who have worked in Tongda, because of your hard work, there is a company Today's results. May our Yueqing Tongda wire electric factory have a better future!

Keywords in this article: Yueqing Tongda, micro switch, waterproof micro switch, push button switch, rocker switch, magnetic switch, WEIPENG micro switch, Tongda micro switch customization, custom micro switch

The micro switch is one of many switches. It's just that the contact distance of the switch is relatively small, so it is named "micro switch".
So what types of switches are there? What matters should be paid attention to when using?
There are many types of micro switches, and there are hundreds of internal structures. The classification of micro switches is analyzed in detail. The details are as follows:
1. According to the volume, there are ordinary, small and ultra-small;
2. According to the breaking type, there are single type, double type and multi-connection type;
3. According to the protection performance, there are waterproof type, dustproof type and explosion-proof type;
4. According to the breaking capacity, normally open, normally closed, and normally open and normally closed conversion type;
5. According to the use environment, there are ordinary type, high temperature resistant type, super high temperature resistant ceramic type;
The basic type of the micro switch is generally without auxiliary pressing attachment, and the small stroke type and the large stroke type are derived. Different auxiliary pressing accessories can be added according to needs, such as flat pressing rods, roller pressing rods, and special-shaped pressing rods. To meet the needs of our customers, our company can customize them according to customer needs.
Tongda WEIPENG micro switch classification
a. Common type: HK-14 series switch
The general size is: length 27.8mm, width 10.3mm, height 15.9mm, current parameters are 5A, 10A, 16A, 21A and other specifications;
b. Small size: HK-04G series switch, HK-04G-L series switch
The size of this type is: 19.8mm in length, 6.4mm in width, and 10.7mm in height. There are tension spring structure and reed structure in structure. The advantage of tension spring structure is high life, and the advantage of reed structure is higher sensitivity.
c. Waterproof micro switch: FSK-14 series, FSK-51 series, FSK-18 series, FSK-20 series, etc.;
Precautions for using Tongda WEIPENG micro switch
1. Please select the appropriate type of switch according to the requirements of rated current, operating load, drive rod type, operating temperature and other requirements;
2. Please choose a sealed switch in an environment with high humidity, impurities and dust.
3. Please do not add oil to the button and drive parts, otherwise it may cause abnormal switch function or even burn. When in use, force should be applied in the vertical direction corresponding to the button.
4. Please install the switch on a flat surface and fasten it with flat washers or spring washers. If the mounting surface is uneven, it will cause the switch to fail or be damaged. If using screws for fixing, place small screws on a smooth surface with a torque of 0.098N•m or less. In addition, in order to prevent the screws from loosening, it is best to use washers under the screws.
5. Switch storage environment: The product should be stored in a warehouse where there is no rain and snow, air circulation, drying temperature of 0 ℃ ~ 55 ℃, no harmful media, the number of stacked layers is not more than 5, and sealed storage. Switch application range: Widely used in various household appliances, medical equipment, military industry, electronic equipment, automation equipment, communication equipment, automotive electronics, power tools and other fields.
Keywords in this article: Yueqing Tongda, micro switch, waterproof micro switch, push button switch, rocker switch, magnetic switch, WEIPENG micro switch, Tongda micro switch customization, custom micro switch

On November 17, 2020, a team of 6 people, led by the Yueqing Economic and Information Bureau and composed of three senior lean experts, came to Tongda WEIPENG to inspect the lean production project of micro switches.
The expert group listened to our factory’s lean report and went to the site to review our factory’s 16 lean transformation micro switch production lines. They unanimously affirmed our factory’s existing lean improvements and also put forward higher requirements. , I hope that our factory will apply lean thinking to every production process of micro-switches, and finally make Tongda WEIPENG a benchmark factory for lean production.
Chairman Chen of our factory said that we are grateful to the Yueqing Economic and Information Bureau for its attention and affirmation of the lean manufacturing of our factory. Tongda WEIPENG has the original intention, confidence and perseverance to carry out the lean production transformation of Tongda's WEIPENG micro switch to the end.

On November 26, 2019, Mr. Niwa from Toyota Motor Corporation of Japan came to our company for inspection and guidance. The purpose of this trip is to investigate the micro switch for the new energy charging gun produced from our factory.
After a day of on-site investigation, Toyota company has given certain recognition and recognition to our production site, research and development capacity, quality control and control, and is full of expectations for future cooperation between the two sides. At the same time, they proposes a higher international standard of 1 PPM per year.
Toyota as the founder of lean production, always been an example for us to learn, who further strengthens our determination to move our micro switch to the top new energy vehicle market.

We have an experienced and efficient R & D team. From product design to mold design and production, we have independently completed. The introduction of 3DP rapid prototyping technology greatly shortens the cycle of product development and verification. We are concerned about the latest developments in the industry, continuous innovation, in recent years, we won 6 national invention patents, utility models patents 48, the appearance of 12 patents.

We have an experienced and efficient R & D team. From product design to mold design and production, we have independently completed. The introduction of 3DP rapid prototyping technology greatly shortens the cycle of product development and verification. We are concerned about the latest developments in the industry, continuous innovation, in recent years, we won 6 national invention patents, utility models patents 48, the appearance of 12 patents.