PremiumCN | Your Precision Diamond & CBN Grinding Wheel Partner

Expertly engineered diamond and CBN grinding wheels for exacting industrial needs. We deliver unmatched accuracy, durability, and custom solutions for the world’s most demanding machining applications.

Our Story

Founded in 2012, PremiumCN was built on a simple mission: to provide manufacturers with grinding wheels that meet the strictest tolerance requirements, without compromising on tool life or performance.

With over a decade of experience in diamond and CBN grinding technology, we specialize in custom bond formulations (metal, resin, vitrified) and precision machining for industries including aerospace, automotive, medical, and precision tooling.

Every wheel we produce is engineered for consistency, with batch-to-batch precision down to 0.005mm, backed by rigorous quality control and ISO 9001 certification.

Our Manufacturing Facility

Advanced automated lines for diamond & CBN grinding wheel production.

Our Process

Engineering Consultation

Discuss your material, tolerance, and cycle time requirements with our grinding specialists.

Custom Design & Prototyping

CAD design + sample validation to ensure the wheel meets your exact specifications.

Bond Formulation & Manufacturing

Tailored bond mixing, diamond grain application, and precision CNC machining.

Rigorous Quality Testing

Runout, hardness, and performance testing to verify tolerance and consistency.

Packaging & Delivery

Secure packaging + fast lead times to keep your production on schedule.