Weilly dies are made of diamonds grade close to gem purpose, which are checked under Microscope by 100X material magnification, any impurities, cracks and spots could be easily detected and rejected. Orthoscope detects the internal-stress, since the abnormal internal-stress will cause die cracking during die manufacturing or wire drawing process.

Locating the diamond at the exact center of casing is carried out by CCD camera-aided positioning device. CCD camera：Charge-coupled Device camera

Automatically adds sintering reinforcement metal powder in to the dies and ensures consistent weight during reinforcement.

At Weilly Diamond, we ensure each die is built for strength and longevity through advanced metal matrix reinforcement. Using high-frequency heating, infrared sensors, and an auto-feeder, our automated sintering process evenly heats metal powder to form a stable structure that firmly secures the diamond. This reinforcement helps the die withstand wire impact and extends its service life.

Automatic turning machines perform front and back cones and two parallel flats with high accuracy. Equipped with digital programming and an auto-feeding system, the process enables high-volume production while ensuring consistent quality and improved processing efficiency.

To ensure precise dimensions and perfect roundness, every die casing at Weilly undergoes centerless grinding. This process tightly controls tolerances within 5 microns, delivering high surface smoothness and consistent outer diameter accuracy—crucial for maintaining the performance and fit of every die we produce.

Our state-of-the-art laser drilling unit enables high-precision profiling of both single crystal and polycrystalline shaped dies. It performs double-sided drilling—accurately drilling both the entrance and exit—to ensure precise die geometry and consistent profiling. This technology has significantly enhanced the accuracy and repeatability of our shaped dies.

Utilizes high-precision wire EDM processing for polycrystalline diamond dies. This not only ensures a more accurate die profile but also improves the quality and efficiency for subsequent processing.

Over 100 ultrasonic units dedicated to the shaping and precision polishing of both round and shaped diamond dies, ensuring consistency and high surface finish quality.

Utilizes fine wire to grind and polish the bearing, achieving precise bore dimensions and a mirror-like surface finish essential for optimal wire drawing performance.

Uses high-precision laser technology to engrave text, logos, or patterns on die casings, meeting a wide range of custom marking requirements with clarity and accuracy.