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On January 22, 2026, at the modern factory of Ningbo Yijun Technology Co., Ltd., located at No. 299 Lishi Road, Ditang Street, Yuyao City, a batch of newly produced screws and nuts was undergoing rigorous quality inspection. This order came from a European client, and thanks to the infrared detection technology of its high-precision screening machine, Ningbo Yijun Technology successfully intercepted defective products, winning high-end recognition and praise from the client for its superior...
Cold heading is a core technology in fastener manufacturing, widely used in the mass production of bolts, nuts, rivets, etc., due to its high efficiency, material saving, and excellent product performance. Ningbo Yijun Technology Co., Ltd. will systematically analyze how to improve the manufacturing precision and quality of fasteners from six aspects: process characteristics, factors affecting precision, equipment selection, raw material requirements, lubricant selection, and mold technology...
Ningbo Yijun Technology: Micron-Level Manufacturing, Setting a New Benchmark for Precision Screws
In the vast expanse of precision manufacturing, Ningbo Yijun Technology Co., Ltd. shines like a rising star, distinguishing itself in the field of micro-screw production with its exceptional micron-level manufacturing capabilities. Ningbo Yijun Technology's core advantage is significant, with its micron-level manufacturing capabilities being truly exceptional. In the highly demanding field of micro-screw production, the company has achieved mass production of a full range of micro-screws from...
In the field of precision manufacturing, every micrometer of precision is crucial to product performance and the future development of the industry. Ningbo Yijun Technology Co., Ltd., a pioneer in the field of micro-precision screws, has become a benchmark enterprise in the industry thanks to its outstanding technical strength and innovative spirit. The company focuses on the design, development, and manufacturing of micro-precision screws, with millimeter-level precision control as its core...
From October 7 to 10, 2025, Shanghai Jinggong Technology Co., Ltd. will make its debut at the Crocus Expo in Moscow, participating in Fastenex—Russia’s leading international exhibition for fasteners and industrial supplies. We will showcase a range of precision stamping molds and high-end fastener solutions at Booth A3047, Hall 1, Pavilion 4, and welcome global clients to visit us. Exhibition Details: Event: Fastenex Russia International Fastener & Industrial Supply Exhibition Date: October...
On September 4, 2025, the China (Chongqing)-Belarus China-Belarus Industrial Park "Belt and Road" Investment Opportunities Promotion Conference was held in Yuzhong District, Chongqing. As a flagship project of the China-Belarus joint Belt and Road Initiative, the China-Belarus Industrial Park presented over 100 cooperation opportunities across 13 categories to Chongqing, attracting over 200 companies from Chongqing and western China. Hou Hui, General Manager of Chongqing Henghui Precision Mold...
Henghui Precision Molds empowers high-end manufacturing with micron-level precision
Since its establishment in 2009, Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as Henghui Precision Molds) has specialized in the research, development, and production of micro-precision screws. Leveraging its exceptional micron-level manufacturing capabilities, Henghui Precision Molds has become a trusted partner for the aerospace, medical device, precision electronics, and micro-mechanics sectors. Adhering to the core philosophy of "Precision in Microscopy, Stability in...
Comparison Between Cold Heading Process and Cold Extrusion Process
Cold heading and cold extrusion are essentially deformation processes under similar conditions, but they differ in their operational methods. Cold heading is a forging deformation process typically used for smaller workpieces and is commonly employed in the fastener industry. In contrast, cold extrusion involves the extrusion deformation of larger workpieces and has a broader range of applications. What is Cold Extrusion? Cold extrusion is a processing method in which a metal blank is placed...
Structural Safety Impact of Stamping Dies
Stamping dies are the primary process equipment for stamping processing, and stamped parts are produced through the relative movement of the upper and lower dies. During processing, the continuous opening and closing of the upper and lower dies poses a serious threat to the safety of operators if their fingers repeatedly enter or remain in the die closure area. (I) Main Components of Dies, Their Functions, and Safety Requirements 1. Working Components The punch and die are the working...
On August 20, 2025, Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as "Henghui Mold") officially completed packaging for its independently developed high-end CNC parts processing machine, which will soon be shipped to a Russian customer. This marks another milestone for Henghui Mold in the export of high-end equipment, following the initial collaboration between the two parties earlier this year, and signifies further international recognition of its "Made in China"...
On August 28, 2025, Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as "Henghui Mold") announced that its independently developed custom-part development process and complete mold set have passed the rigorous inspection of a Brazilian customer. The first batch of products has been packed and shipped to South America. This order further recognizes Henghui Mold's technological strength in high-end custom parts and injects new momentum into China-Brazil precision manufacturing...
In the field of precision manufacturing, micro-screws are like the "red blood cells" of industry. Despite their tiny size, they carry crucial missions such as spacecraft's flight, the precise operation of medical equipment, and the lightweighting of consumer electronics. Shanghai Yijun Precision, founded in 2013, is a hidden champion in this niche market. Thanks to a decade of dedicated technological development and digital innovation, the company has become one of the few global manufacturers...
In the field of precision manufacturing, the technical strength of a mold supplier directly determines the ultimate quality of the end product. Since its establishment in 2013, Shanghai Yijun Precision has rapidly risen to become a leading high-end mold supplier in the Yangtze River Delta region, leveraging millimeter-level precision as its core competitiveness. With an ISO9001-certified production system and a fully automated digital production line integrating CNC turning centers and optical...
On August 7, 2025, the I.C.E. Cultural Exhibition Hall in Hanoi, Vietnam, was bustling with activity as the three-day Vietnam International Industrial Manufacturing Technology, Equipment, and Fastener Exhibition entered its second day. Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as "Henghui Mold"), a leading company in the precision mold industry, showcased a variety of independently developed high-end molds and intelligent solutions at booth E16. The exhibition...
On August 7, 2025, Hou Hui, General Manager of Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as "Henghui Mold"), led a technical team to Moscow, Russia, to provide technical support to a local aviation parts manufacturer. The team successfully resolved key technical challenges in machining complex curved titanium alloy surfaces, helping the customer resume production and improve process quality, earning high praise from the Russian side. This initiative demonstrates the...
Introduction to the cross section of Robot Micro Screws
In normal stamping processing, the cross section of Robot Micro Screws has four obvious characteristic areas: fillet band, bright band, fracture band and burr. Let's take a look at the cross section of Robot Micro Screws. 1. Fillet band. The fillet band is also called collapsed angle. It is caused by the bending and stretching of the material surface of the steel plate close to the upper die or the lower die but not in contact with the Robot Micro Screws. 2. Bright band. The bright band is...
What are the cleaning methods for Robot Micro Screws?
Robot Micro Screws are divided into three types of precision cleaning: general industrial cleaning, precision industrial cleaning, and ultra-precision industrial cleaning. Ultrasonic cleaning machines can be tailored according to the precision, shape, size, and number of cleanings of Robot Micro Screws. Ultrasonic cleaning refers to the use of cleaning solvents combined with ultrasonic technology to remove liquid and solid pollutants attached to the surface of metal stamping parts, so that the...
UAV Micro Screws Efficiency Optimization: Multi-Dimensional Efforts to Accelerate Production Speed
In modern manufacturing, UAV Micro Screws are one of the core equipment for metal forming, widely used in automotive parts, appliance housings, hardware products, and other fields. With intensifying market competition and shorter customer delivery cycles, optimizing UAV Micro Screws efficiency and accelerating production speed have become key issues for enterprises to reduce costs and increase efficiency. The structural design of UAV Micro Screws directly determines molding efficiency and...
Solutions to Robot Micro Screws surface scratches
1. The radius of the die corner is too small, and impact marks appear on the bending part of the Robot Micro Screws. Polishing the die and increasing the radius of the die corner can avoid scratches on the bent parts of the Robot Micro Screws. 2. The gap between the convex and concave dies should not be too small. Too small a gap will cause thinning and scratches. During the stamping process, always check the changes in the gap of the mold. 3. When the depth of the punch entering the die is too...
Characteristics and applications of Robot Micro Screws
Robot Micro Screws are a production technology that uses the power of conventional or special stamping equipment to directly subject sheet materials to deformation forces in the mold and deform them, thereby obtaining product parts of certain shapes, sizes and performances. Sheet materials, molds and equipment are the three elements of stamping processing. Stamping is a metal cold deformation processing method. Therefore, it is called cold stamping or sheet stamping, or stamping for short. It...
Robot Micro Screws shearing method
In Robot Micro Screws processing, shearing is one of the most basic processes. Reasonable selection of Robot Micro Screws shearing equipment, according to the size of the production batch, the geometric shape and size of the Robot Micro Screws sheared are different. It is suitable for Robot Micro Screws sheets with a thickness of less than 1 mm. Robot Micro Screws blanks or semi-finished products are hand shears and shears. It is suitable for straight or curved Robot Micro Screws blanks with a...
Main features of Robot Micro Screws
1. Save materials Robot Micro Screws are one of the methods of cutting with little or no cutting. It can not only produce as little waste as possible or without waste, but also make full use of the scraps in some cases to make other parts to avoid waste. 2. Products have good interchangeability The dimensional tolerance of Robot Micro Screws is guaranteed by the mold, with the same characteristics, and generally no further machining is required. Therefore, the processing dimensions of the same...
Problems that may occur during the processing of Robot Micro Screws
Robot Micro Screws sometimes have scratches or pits on the sheet before processing. There are many possibilities for this situation. No matter what the scratches and pits are caused by, we must prevent and solve them in advance. Let's take a look at the causes of scratches or pits on Robot Micro Screws sheets. First of all, from the raw materials, the material workers should check whether there are scratches or pits on the surface of the raw materials before unloading. If there are serious...
Stamping process specification for Robot Micro Screws
Stamping process specification is a technical document that guides the production process of Robot Micro Screws; the preparation of stamping process specification is usually for a specific Robot Micro Screws part. According to its structural characteristics, dimensional accuracy requirements and production batch, etc., according to the existing production equipment and productivity, the most reasonable and economical production process plan is formulated; including the structural form of the...
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