Jewelry Polishing Industry
Why Choose Yen Shen for the Jewelry Polishing Industry?
In the application of jewelry polishing machines, Yen Shen Electric is a trusted partner that helps clients gain a competitive edge. As the market demands unique applications and enhanced processing capabilities, Yen Shen focuses on the R&D and design of customized motors, delivering high-performance solutions to effectively address issues like unstable speeds, overheating, and high maintenance costs.
Challenges & Solutions
Unstable Speed
During jewelry processing, unstable speeds caused by high slip applications can affect polishing time and surface smoothness. This impacts product quality and increases belt wear and motor failure rates.
We adopt a high-efficiency direct-drive permanent magnet brushless DC motor to replace the induction motor with a belt pulley structure. This ensures stable speeds and leverages the motor’s features of low speed, high torque, and low temperature rise. Our specialized controller maintains synchronized speeds, ensuring consistent polishing results regardless of gemstone hardness, thus improving precision and consistency during the jewelry polishing process.
Challenges & Solutions
Overheating Issues
Standard motors running for long periods may overheat, affecting their lifespan and performance.
After evaluating the customer's motor specifications and mechanical structure, we used computer-assisted simulation to optimize motor performance and temperature curves. By adjusting parameters such as silicon steel sheet size and material, magnet demagnetization temperature, and copper wire gauge, we ensured the motor could handle extended operational loads. Our patented natural cooling technology, embedded in a globally unique driver, effectively addresses temperature rise issues, preventing overheating, prolonging lifespan, and maintaining optimal performance.
Challenges & Solutions
High Maintenance Costs
Traditional motor with pulleys often face challenges like belt wear, noise, and motor overheating, leading to higher maintenance demands and costs. Our direct-drive built-in spindle synchronous servo motor eliminates these issues by removing belt dependencies, ensuring smoother and more reliable operation.
We designed a "direct-drive built-in spindle synchronous servo motor" for our clients, which reduces machine structure size, noise, and weight. It detects overload, overheating, overspeed, and improper operations, activating protection mechanisms to minimize failure rates. This reduces long-term operational costs, providing peace of mind for our clients.
Success Stories
Clients using our customized motors have significantly improved processing efficiency and product quality. Polishing time was reduced by 30%, and product pass rates increased to 95%
Data Highlights
Processing precision improved
Failure rates reduced
Comprehensive Solutions
In addition to providing high-efficiency motors, we optimize overall mechanical design to reduce wear on other components and enhance system efficiency.
Traditional polishing machines typically use induction motors with belt pulleys to drive wheels or belts. However, under rough grinding conditions, belt pulleys are prone to slippage or severe wear, leading to unstable speeds due to drastic load changes. This results in excessive material consumption or uneven surfaces. From the TN curve of induction motors, it is evident that during heavy loads, speed decreases while torque simultaneously diminishes. This forces technicians to constantly adjust their force according to speed changes, affecting process stability and making it challenging to standardize operations and establish an efficient SOP.
To address these issues, we use brushless DC motors (BLDC) to directly drive wheels and belts, eliminating instability caused by belt pulleys while avoiding the hassle of belt wear and replacement. With the load-speed feedback control mechanism of BLDC motor controllers, speeds remain stable even under heavy loads, maintaining nearly constant torque. This ensures stable processing conditions, reducing reliance on technicians’ experience. As a result, machine operational stability improves significantly, helping to establish standardized SOPs and minimize operator-induced material wastage.
Moreover, with stable mechanical performance, semi-automated production can be further introduced, significantly enhancing output. This transforms the traditional diamond polishing industry from labor-intensive to technology-driven, reducing personnel management uncertainties and effectively lowering labor costs, laying the foundation for industry upgrades.
Technical Support & Training
We provide comprehensive technical support and training to ensure clients maximize the potential of our products.