Cases

In industries such as petrochemical and medical equipment, the reliability of pipeline systems directly impacts production safety and efficiency. Dongguan Sinbo Precision, a leader in precision manufacturing, recently completed a customized Pipeline Precision Fittings project for a multinational energy company. By integrating 5-axis simultaneous machining technology and intelligent thermal compensation systems, Sinbo achieved ±0.003mm dimensional accuracy, a 10x improvement over traditional methods, reducing the client's pipeline leakage rate by 90%. I. Project Background & Challenges The project required machining 316L stainless steel tee fittings for deep-sea oil and gas extraction equipment, adhering to ISO 15590-2:2021 Class S standards, including: Carbon equivalent ≤0.42% Sulfur content ≤0.003% Charpy impact energy ≥45J at -30℃ Pressure resistance ≥10MPa Traditional machining struggled to balance complex surface forming and high corrosion resistance, with the client incurring annual losses exceeding $1M due to welding misalignment-related leaks. II. Sinbo's Innovative Solutions 5-Axis Simultaneous MachiningUsing Japanese Tsugami 5-axis machines with RTCP (Tool Center Point Control), Sinbo completed 360° full-circumference milling in a single setup, eliminating multi-fixturing errors and ensuring Ra≤0.8μm inner surface roughness. Intelligent Thermal Compensation SystemReal-time spindle temperature monitoring combined with DNN neural network algorithms predicted lead screw elongation, dynamically adjusting feed parameters to control thermal deformation within ±0.001mm. End-to-End Quality Control Material Traceability: Each batch of raw materials underwent optical emission spectroscopy to ensure chemical composition deviations ≤0.01% In-Process Inspection: Zeiss CMM performed 100% full-dimensional inspection, tightening critical dimension (e.g., R radius) tolerances to ±0.05mm Performance Validation: Passed NACE TM0284 HIC testing and CTOD crack tip opening displacement tests for acid-resistant environments III. Project Outcomes & Value 60% Efficiency Improvement: Single-piece processing time reduced from 8 to 3.2 hours 40% Cost Reduction: Process optimization eliminated 50% of post-processing steps Client Benefits: 70% reduction in pipeline maintenance frequency 80% less equipment downtime Obtained DNV GL certification for international compliance IV. Client Testimonial "Sinbo's technical team not only solved our urgent problem but also helped us establish industry benchmarks through data-driven process optimization. Their 5-axis capabilities and rigorous quality systems have given us unmatched confidence in deep-sea projects."——APAC Procurement Director, Multinational Energy Company

Dongguan Sinbo Precision Couplings: The Precise Choice for Efficient Operation of Automated Production Lines In today's rapidly developing field of automated manufacturing, stable operation and efficient transmission of equipment are key for enterprises to improve production efficiency. A large electronic equipment manufacturer's automated production line once faced problems of insufficient transmission precision and large equipment vibration, which seriously affected the production quality and efficiency of products. After multiple investigations and comparisons, the enterprise finally chose the couplings produced by Dongguan Sinbo Precision. The couplings of Dongguan Sinbo Precision are made of high-quality materials and precision machining, with extremely high transmission precision. After being installed on the production line, it effectively reduced the vibration during equipment operation, made the cooperation between various components more precise, and increased the qualified rate of product production by 15%. At the same time, its excellent wear resistance and fatigue resistance greatly reduced the number of equipment maintenance and replacement frequency, saving a lot of human and material costs for the enterprise. In addition, Dongguan Sinbo Precision has a professional technical team that can provide customized coupling solutions according to the needs of different customers. For the special working conditions of the production line of the electronic equipment manufacturer, the technical personnel conducted detailed analysis and design to ensure that the coupling is perfectly adapted to the production line, further improving the operating efficiency of the equipment. Now, the automated production line of the electronic equipment manufacturer operates stably and efficiently, and the couplings of Dongguan Sinbo Precision have also won high recognition from the enterprise with their excellent performance, becoming an important long-term cooperation partner.

Dongguan Sinbo Precision Flange Parts Machining Case​ In the manufacturing industry, flange parts are crucial connecting components in various mechanical equipment, and their machining quality directly affects the overall performance and stability of the equipment. Dongguan Sinbo Precision, a high-tech enterprise dedicated to precision parts manufacturing, has demonstrated outstanding technical strength and rich experience in flange parts machining.​ I. Company Background​ Dongguan Sinbo Precision was founded in 2013, with a modern factory covering an area of 34,000 square meters, more than 600 professional employees, and nearly 500 imported processing and inspection equipments. With a design and manufacturing team having over 13 years of experience, the company is committed to providing high-quality and customized precision parts solutions for global customers.​ II. Machining Requirement Analysis​ The customer put forward strict requirements for this batch of flange parts. In terms of accuracy, the tolerance of key dimensions needs to be controlled within a very small range. For example, the diameter tolerance of the outer circle is required to be ±0.01mm, and the cylindricity error of the inner hole should not exceed 0.005mm. In terms of surface quality, the surface roughness Ra of the machined surface is required to be below 0.8μm to ensure good sealing performance and connection reliability. At the same time, in terms of material selection, high-strength alloy steel was chosen. Although this material has excellent mechanical properties, it is more difficult to machine, posing higher challenges to the machining process and tools.​ III. Machining Process Formulation​ Blank Preparation: According to the structure and size of the parts, forging process was adopted to prepare the blanks. Forging can effectively improve the internal structure of the material and enhance the strength and toughness of the parts. After careful calculation and simulation, a reasonable forging ratio was determined to ensure the quality of the blank and minimize the subsequent machining allowance.​ Rough Machining Stage: Advanced CNC lathes were used for rough turning of the outer circle and inner hole. To improve machining efficiency, large cutting depth and feed rate were selected, but at the same time, the cutting parameters were strictly controlled to avoid part deformation caused by excessive cutting force. After rough turning, an appropriate machining allowance was reserved for the subsequent finishing stage.​ Finishing Stage: Based on rough machining, high-precision CNC grinding machines were used to grind the key dimensions. During the grinding process, an on-line detection system was used to monitor the dimensional accuracy in real-time, ensuring that each machined dimension can accurately meet the design requirements. For the sealing surface of the flange, the lapping process was adopted to further reduce the surface roughness and improve the sealing performance.​ Hole System Machining: For the multiple connecting holes on the flange, CNC drilling machines and boring machines were used for machining. Through advanced tool path planning and high-precision positioning systems, the position accuracy and dimensional accuracy of the holes were ensured, and the position deviation between each hole was controlled within ±0.02mm.​ IV. Quality Control Measures​ Equipment Calibration: All processing and inspection equipments are regularly calibrated and maintained to ensure their high-precision operation. For example, the positioning accuracy of the CNC lathe is calibrated once a month, and the measurement accuracy of the inspection equipment is calibrated once a quarter.​ Process Inspection: During the machining process, multiple quality inspection points are set up to detect the key dimensions and surface quality in real-time. A coordinate measuring machine is used to spot-check the machined surface. Once the dimensional deviation exceeds the allowable range, the machining parameters are immediately adjusted or corrective measures are taken.​ Finished Product Inspection: After the parts are machined, a comprehensive finished product inspection is carried out. Not only are the dimensional accuracy and surface quality strictly inspected, but also the physical and chemical properties such as hardness and metallographic structure of the parts are tested to ensure that the product quality fully meets the customer's requirements.​ V. Machining Results Display​ Through the unremitting efforts of the Dongguan Sinbo Precision team, this flange parts machining project has achieved complete success. The machined flange parts have met or even exceeded the customer's expectations in terms of accuracy, surface quality, and mechanical properties. The customer highly appraised the product quality and established a long-term and stable cooperative relationship with the company.​ VI. Summary and Prospect​ This flange parts machining case fully demonstrates the strong technical strength and professional service capabilities of Dongguan Sinbo Precision in the field of precision parts machining. The company will continue to adhere to the business philosophy of "striving for excellence and customer first", continuously introduce advanced technologies and equipments, improve the professional quality of the team, provide more high-quality and efficient precision parts machining solutions for global customers, and contribute to the high-quality development of the manufacturing industry.​

In the field of industrial manufacturing, aluminum-magnesium alloy parts are highly favored for their lightweight properties, high strength, and excellent corrosion resistance. With years of accumulated sophisticated technology and rich experience, Dongguan Sinbo Precision has successfully completed numerous aluminum-magnesium alloy parts processing projects, providing high-quality solutions for customers in various industries. Take a project commissioned by a well-known aerospace enterprise as an example. The enterprise urgently needed a batch of high-precision aluminum-magnesium alloy structural components for the key parts of a new aircraft. These parts not only required extremely high strength and lightweight characteristics but also had to meet strict dimensional accuracy and surface finish standards. Upon receiving the request, Dongguan Sinbo Precision quickly assembled a professional technical team to conduct an in-depth analysis of the part design drawings. The team utilized advanced CNC machining equipment and special processing techniques. According to the material characteristics of aluminum-magnesium alloys, they optimized the processing parameters and solved problems such as easy deformation and surface damage during the machining process. Through precise processing and strict quality inspection procedures, the finally delivered parts not only had dimensional errors controlled within a very small range, but also achieved industry-leading surface finish, fully meeting the high standards of the aerospace field and facilitating the smooth progress of the customer's new aircraft research and development project. In addition, in the automotive manufacturing industry, Dongguan Sinbo Precision once processed aluminum-magnesium alloy battery casings for a new energy vehicle manufacturer. Facing the customer's multiple requirements for part heat dissipation performance, structural strength, and cost control, the company used innovative processing technologies. While ensuring product quality, it reduced production costs by optimizing the production process and achieved efficient product delivery, enhancing the customer's market competitiveness. The successful cases of Dongguan Sinbo Precision in the field of aluminum-magnesium alloy parts processing fully demonstrate its outstanding capabilities in technological innovation, process optimization, and quality control, making it a trusted partner for many enterprises.

Case of Aluminum - Magnesium Alloy Parts Processing by Dongguan Sinbo Precision In the precision manufacturing industry, aluminum - magnesium alloys have become the material of choice for many high - end products due to their excellent properties, such as low density, high strength, and good corrosion resistance. Dongguan Sinbo Precision, as a leader in the industry, has demonstrated outstanding technical strength and rich experience in the processing of aluminum - magnesium alloy parts, successfully creating high - quality customized part solutions for multiple industries. 1. Case of Complex Aviation Parts Processing The aviation industry has extremely strict requirements for the precision and quality of parts. Sinbo Precision once undertook a project to manufacture key aluminum - magnesium alloy parts for a new aircraft engine. The part has a complex structure, with numerous thin - walled sections, deep holes, and irregular curved surfaces. The dimensional accuracy requirement reaches ±0.005mm, and the surface roughness needs to be controlled below Ra0.4μm. Facing these challenges, Sinbo Precision formed a special team composed of senior engineers and technical experts. In the processing technology planning, the team adopted advanced five - axis 联动 CNC machining technology. Through precise programming, the tool can move flexibly in a complex space, ensuring precise processing of all parts of the part. For the thin - walled parts, a special cutting parameter optimization strategy was used to effectively avoid part deformation caused by excessive cutting force while ensuring processing efficiency. In the deep - hole processing, customized high - precision deep - hole drills were used, combined with a high - pressure cooling system, which not only improved the chip removal efficiency but also ensured the smoothness and straightness of the hole wall. In addition, to ensure the corrosion resistance and fatigue strength of the parts, Sinbo Precision carried out surface strengthening processes such as anodizing and aging treatment on the processed parts. After strict quality inspection, the final delivered parts exceeded the customer's expectations in all performance indicators, helping the customer's new engine successfully pass the rigorous flight test and winning a good reputation in the aviation market. 2. Case of High - End Electronic Equipment Parts Processing With the development of electronic equipment towards miniaturization, lightweight, and high - performance, the requirements for the precision and integration of internal parts are getting higher and higher. Sinbo Precision cooperated with a well - known electronics brand to manufacture aluminum - magnesium alloy casings and internal structural parts for its new tablet computer. The customer required that the casing not only be lightweight and sturdy but also have excellent heat dissipation performance and electromagnetic shielding effect. The internal structural parts need to achieve high - precision assembly to ensure the stable operation of electronic components. Sinbo Precision used self - developed precision molds and advanced die - casting processes to successfully manufacture aluminum - magnesium alloy casing blanks with thin walls and extremely high dimensional accuracy. In the subsequent processing, through precision CNC milling and grinding processes, the surface flatness and assembly dimensions of the casing were finely controlled, with the flatness error of the casing less than ±0.01mm and the assembly gap controlled within ±0.02mm. To improve heat dissipation performance, a special heat - sink fin structure was designed and processed on the surface of the casing. By optimizing the shape and layout of the fins, the heat - dissipation area was effectively increased, and the heat - dissipation efficiency was improved. For the electromagnetic shielding requirement, surface treatment technologies such as electroless nickel plating were used to endow the casing with good electromagnetic shielding ability without affecting the appearance and mechanical properties. For the internal structural parts, Sinbo Precision used micro - processing technology to achieve high - precision processing of small holes and fine structures. Through a strict quality control system, from the inspection of raw materials to the real - time monitoring of each processing process and then to the comprehensive inspection of finished products, the quality stability and reliability of the internal structural parts were ensured. The final delivered products helped the customer's tablet computer stand out in the market with its lightweight, high - performance, and good heat - dissipation and electromagnetic shielding performance, and the sales volume increased significantly. 3. Strict Quality Control and Continuous Innovation Sinbo Precision deeply understands that quality is the lifeblood of the enterprise. In the process of aluminum - magnesium alloy parts processing, a complete and strict quality control system has been established. The company is equipped with advanced testing equipment, such as high - precision coordinate measuring machines, electron microscopes, and spectrometers, to comprehensively and accurately detect the composition of raw materials, the dimensional accuracy of parts, surface quality, and micro - structure. Each batch of products has to go through multiple strict quality inspection procedures. Only when all indicators meet or exceed customer requirements and industry standards will the products be released. At the same time, Sinbo Precision always adheres to technological innovation and continuously invests resources in research and development and process improvement. The company has established long - term cooperative relationships with many well - known universities and scientific research institutions to jointly carry out cutting - edge technology research and talent cultivation. By continuously introducing new technologies and processes, such as laser processing and additive manufacturing, and organically combining them with traditional processing technologies, the processing precision, efficiency, and quality of aluminum - magnesium alloy parts are continuously improved to meet the increasingly diverse and personalized needs of customers. With its outstanding performance in the field of aluminum - magnesium alloy parts processing, Dongguan Sinbo Precision has won the trust and long - term cooperation of many domestic and foreign customers and has become an important force promoting the wide application of aluminum - magnesium alloys in the field of precision manufacturing.

Case of Sniper Scope Parts Processing by Dongguan Sinbo Precision in Dongguan In the field of precision manufacturing, Dongguan Sinbo Precision has emerged as an industry leader in the processing of sniper scope parts with its outstanding technical strength and exquisite craftsmanship. As a key component determining the shooting accuracy of sniper rifles, sniper scopes have extremely high requirements for the precision and quality of their parts. Sinbo Precision, with its profound industry experience and advanced equipment, has successfully overcome numerous technical challenges and achieved a series of remarkable processing results. Challenges and Breakthroughs: Case of Complex Scope Tube Processing A well - known firearm manufacturer commissioned Sinbo Precision to process a batch of high - precision sniper scope tubes. These scope tubes were required to have extremely high straightness and internal surface finish to ensure the precise coaxiality of optical lenses after installation, thus guaranteeing the imaging quality and aiming accuracy of the scope. After receiving the task, the technical team of Sinbo Precision first conducted in - depth research and optimization on the processing technology. They adopted advanced CNC machining technology and achieved high - precision cutting of the outer diameter and inner hole of the scope tube through careful programming. During the processing, cutting parameters such as cutting speed, feed rate, and depth of cut were strictly controlled, effectively reducing processing stress and avoiding deformation of the scope tube. At the same time, through precision grinding and polishing processes, the internal surface finish of the scope tube reached a near - mirror effect, greatly improving the installation stability of optical lenses and the light transmission efficiency. The finally delivered scope tube products exceeded the customer's expectations in all accuracy indicators. The straightness error was controlled within ±0.005mm, and the roundness error of the inner hole was less than ±0.002mm, laying a solid foundation for the high - precision assembly of subsequent scopes. Customized Solutions: Processing of Special Reticle Parts Another challenging project was to customize reticle parts for a new type of sniper scope. The customer put forward extremely strict requirements for the pattern design, line accuracy, and material properties of the reticle. The engineers of Sinbo Precision worked closely with the customer and carried out multiple rounds of demonstration starting from material selection. Eventually, a special alloy material with high wear resistance and good optical properties was selected. In terms of processing technology, advanced laser etching technology was adopted, which can achieve high - precision line carving within a very small size range. The width error of the reticle lines was controlled within ±0.001mm, ensuring the clarity and accuracy of the aiming reticle. In addition, through a special surface treatment process, the corrosion resistance and anti - reflection performance of the reticle were enhanced, making it clearly visible in various harsh environments. This customized reticle part not only met the customer's strict requirements for product performance but also helped the customer's new sniper scope stand out in the market with its unique functions and excellent performance. Quality Control and Continuous Improvement Sinbo Precision deeply understands that quality is the lifeblood of the enterprise. In the process of sniper scope parts processing, a strict quality control system has been established. From the inspection of raw materials entering the factory to the real - time monitoring of each processing process and then to the comprehensive inspection of finished products, no link can afford the slightest mistake. The company is equipped with advanced testing equipment such as high - precision coordinate measuring machines and electron microscopes to accurately detect the dimensional accuracy, surface roughness, and micro - structure of parts. At the same time, continuous collection of customer feedback is carried out to continuously optimize the processing technology and quality control process, so as to maintain its leading technical position in the industry. With its outstanding performance in the field of sniper scope parts processing, Dongguan Sinbo Precision has won the trust and praise of many domestic and foreign customers and has become an important force promoting the continuous progress of sniper scope manufacturing technology.