Thank you to our Russian customers for visiting our factory. We are honored by your visit and we hope you have a pleasant and beneficial experience with our facilities and processes. During the visit, we gained an in-depth understanding of our production lines, equipment and technology, as well as our strict quality control processes. This visit can demonstrate our pursuit of excellent quality and high attention to customer needs. During the visit, also mingle with our staff and discuss our latest innovative projects with our R&D team. Thank you for your visit. Discuss Record . --------------占位---------------

Thank you very much to our Russian customers for meeting us in Shanghai. This exchange has taken our cooperation one step further and we look forward to our future cooperation.

The Shanghai Machine Tool Show concluded successfully. Thank you customers for visiting. The following are some wonderful and surprising moments in the exhibition~

Dear customers and partners, We would like to inform you of our holiday arrangements. Holiday dates: The holiday period starting from the Qingming Festival in 2024 is from April 4 (Thursday) to April 6 (Saturday), a total of 3 days. Go to work on April 7 (Sunday). Service availability: - Our online services, including our website and email support, will remain accessible during the holidays. However, please note that response times may be longer than usual. - Our customer support team will be available for a limited time to assist with any urgent inquiries or issues that may arise. Order processing and shipping: - Due to reduced staff, orders placed before the holidays may experience slight delays in processing and shipping. Thank you for your understanding and patience during this time. Customer inquiries: - If you have any emergency matters during the holidays, please contact us: zhangchaochun@njstai.com/ +86 17372250019. We appreciate your understanding and support as we take this opportunity to celebrate these important holidays and spend time with our families. We will resume normal business on Sunday, April 7, 2024. Thank you for choosing Shuntai as your trusted partner!

Classification of HIWIN linear guide rails: HG - High assembly four row ball type EG - Low assembly four row ball type QH - Silent High Assembly Four Row Ball Type QE - Silent Low Assembly Four Row Ball Type RG - Heavy duty four row roller type MG - Two row steel ball micro size Linear guide rail and slider reference size:15, 20, 25, 30, 35 Linear guide rail installation hole type: R lock type countersunk hole, U enlarged hole locking countersunk hole T-shaped locking threaded hole (e.g. 15 guide rails labeled as: - length of guide rail, - length of guide rail, - length of guide rail)

There are two types of guide rails that are frequently encountered. Line rail and Hard rail. Line rail, also known as linear guide rail. Consisting of a fixed component for guidance and a moving component, the fixed component is installed on the machine tool, while the moving component is installed on the workbench or other moving components. Line tracks are generally used in mechanical structures with high requirements for straightness, parallelism, etc. THK, Nanjing SHUNTAI, HIWIN and other manufacturers all have related products. Hard rails are directly machined onto fixed components such as the bed and columns of a machine tool (the rails and fixed components are integrated), and connected to a workbench or other moving parts through a slide seat. To ensure accuracy, it is also necessary to Scrape and grind on the guide rail. Features: The line rail belongs to the rolling friction moving speed block, with high positioning accuracy. However, the load-bearing capacity is insufficient (resulting in the development of ball and roller guides). Hard rails have high sliding friction bearing capacity but slow movement speed.

Ball screws and trapezoidal screws are common transmission devices used to achieve linear motion or convert rotational motion into linear motion. There are several differences between them: 1. Efficiency: Ball screws are generally more efficient. Because the balls of the ball screw can reduce friction loss when rolling, the ball screw has higher transmission efficiency than the trapezoidal screw. 2. Return accuracy: Ball screws usually have better return accuracy. The balls and threads of the ball screw mesh with each other and have a small gap, so it is easier to maintain position accuracy during reverse movement. 3. Load capacity: Ball screws usually have higher load capacity. Ball screws have a larger ball contact area and can withstand higher axial and reciprocating loads. 4. Movement stability: Ball screws usually have good movement stability. The rolling motion of the ball screw is relatively smooth, reducing vibration and noise. It should be noted that the manufacturing and installation of ball screws are relatively complex and costly. Therefore, in some applications, the lead screw remains an economical and practical choice. The choice between a ball screw or a trapezoidal screw should be determined based on specific application needs and budget.

Ball screw is an important precision component in machine tools. The screw of ball screw can be solid or hollow, and solid ball screw is the most common type. Therefore, today we will briefly introduce the uncommon hollow ball screw. Hollow ball screw is suitable for high-precision machine tools. Hollow ball screw can cooperate well with the high-speed operation of the conveying mechanism, especially when high-precision positioning is required. Due to the heat generated during movement, thermal expansion and contraction can cause the ball screw to expand. In order to prevent this change in the ball screw, hollow ball screw has emerged. Hollow ball screw, because it is hollow, blocks heat conduction and achieves cooling effect. Moreover, due to the hollow of the screw shaft and standardized processing at both ends of the shaft, it is an effective method to reduce thermal expansion. The hollow shaft ball screw has the following advantages: 1. Stable positioning accuracy Thermal expansion can lead to a decrease in the accuracy of the ball screw. As the hollow shaft suppresses the thermal expansion caused by temperature rise, the accuracy of the ball screw is stable. 2. Effectively preventing displacement of various parts By reducing the occurrence of thermal expansion, the displacement of the ball screw support shaft and base is controlled within the minimum range. At the same time, the cooling effect of the hollow shaft effectively blocks heat conduction to other parts, thereby avoiding deformation of the workbench due to heat. 3. Effectively shorten preheating time The cooling effect of the hollow shaft can reduce the amplitude of temperature rise, thereby shortening the preheating time of the equipment. 4. Effectively maintaining the lubrication performance of ball screws Because it avoids the heating of the ball screw and slows down the rate of lubricating oil deterioration, it can better maintain the effectiveness of the lubricating oil.

Trapezoidal screw products are easy to adjust based on specific applications to achieve expected performance while minimizing costs. In some cases, life testing may be required during the design phase, but for original equipment manufacturers, conducting such additional work in the early stages can help reduce product costs. 1.Determine the usage conditions based on the weight of the moving object, feed rate, operating mode, screw shaft speed, stroke, installation direction (horizontal or vertical), lifespan, and positioning accuracy. 2. Pre select the specifications and usage conditions of the trapezoidal screw , and pre select the accuracy level (C3~C7), shaft diameter, pitch, and total length of the ball screw. 3. Confirm basic safety. ① Confirm that the allowable axial load is within the allowable axial load range of the screw shaft. ② Confirm that the speed of the screw shaft is within its allowable speed range. ③ Calculate the lifespan time of the screw shaft and confirm that it can ensure the required lifespan time. 4. Conduct discussions based on performance requirements. To improve precision positioning accuracy and responsiveness during control, the following confirmation is required. ① The rigidity of the screw shaft ② changes in lifespan caused by temperature.

Good luck with the new beginning. Nanjing Shuntai Precision Machinery Factory in Jiangning District has played the prelude to the hot start of construction. At present, both the factory and the trade department have been carrying out their work in an orderly and normal manner. Welcome new and old customers to place orders for ball screws, trapezoidal screws, linear guides, castings, etc. Best Wishes! Tel: +86 17372250019 Email: zhangchaochun@njstai.com

Dear visitors and customers: In accordance with national statutory holiday regulations and based on the actual situation of the company, the 2024 Spring Festival holiday arrangements are now notified as follows: In order to enable employees to get sufficient rest and reunite with their families, the company has decided to have a Spring Festival holiday from February 7th to February 18th, for a total of 12 days. The staff started working on February 19th. Although the company is closed during the Spring Festival holiday, we are still taking orders online. If you need to purchase ball screws, linear guides, slides, castings, please feel free to contact us via email, phone or online chat. We will respond to any questions or concerns you have as soon as possible. Thank you for your trust and support in our company. During this period, if you have any emergencies or needs, please feel free to contact us via the following contact information: Tel: +86 17372250019 Email: zhangchaochun@njstai.com ​

As an important part of the automation industry, linear guides are required to be waterproof and dustproof in many cases. Can linear guides do this? Linear guides can be used in water environments, because when using linear guides, they inevitably come into contact with water (there is also water vapor in the air). Machining centers, lathes, etc. usually need to use water, so The guide oil added to the linear guide rail will decompose when it encounters water, and the oil will flow into the cutting fluid, and the linear guide cutting fluid will be contaminated. At this time, it is very important to solve the water separation performance of the linear guide rail. A common method is to add waterproofing to the linear guide rail. Guards, but we generally do not recommend using linear guides in water-rich environments unless necessary. The main issues to consider when using linear guides are as follows: The first is the rust of linear guides. Impure water is corrosive. Although there are stainless steel linear guides, stainless steel cannot completely prevent corrosion. In addition, linear guides often undergo friction movements, and the rolling elements and guide rails must be worn. Where the rails are worn, they are more likely to rust. Secondly, lubricant must be added in time when the linear guide rail is in use. In order to ensure the speed, accuracy and service life of the slider, special lubricant for the linear guide rail must be added on time and in the right amount. When the linear guide slider moves in the water, the water It will enter the interior of the linear guide block, causing the linear guide slider to expand. In addition, the linear guide rolling elements rotate quickly, which can easily cause damage to the linear guide slider. Finally, when the linear guide slider is immersed in water, it will be subject to water resistance and impact force. Therefore, before installing the linear guide rail, the impact of water on the movement speed of the linear guide rail must be considered and calculated, as well as the vibration caused by water impact and obstacles. To sum up, in terms of materials used for linear guide rails, neither stainless steel linear guide rails nor bearing steel linear guide rails can completely prevent rust. The linear guide rails can be protected by adding a waterproof shield to delay the rust of the linear guide rails. Generally, if it is not necessary, we do not recommend the use of linear guides in environments with a lot of water.