Collaborating with U.S. Clients to Deliver High-Quality Vertical Mill Liner Solutions

On the path of premium casting manufacturing, HAITIAN CASTING remains committed to customer-centric innovation, continuously advancing technology and quality. In this project, we provided a fully customized, high-standard solution for our international client’s vertical mill liner requirements.

Project Background

A U.S.-based client commissioned HAITIAN CASTING to produce a batch of vertical mill liners for large-scale mining aggregate grinding. The liners demanded exceptional wear resistance and quality stability, particularly under high-intensity, high-abrasion operating conditions—imposing stringent standards on material composition and structural design.

Key Challenges:

Two liner specifications: 1.75-ton and 2.85-ton units.

Material requirement: High-chromium content (26%), posing challenges for casting consistency and yield rates.

Solution Highlights

To address the complexities of heavy weight, high-alloy material, and precision tolerances, the client partnered with HAITIAN CASTING for our technical expertise and proven track record. After multiple engineering reviews, we adopted 3D-printed sand cores to replace traditional resin sand molding, delivering:

✔ Precision & Efficiency: Automated 3D sand printing minimized manual errors.

✔ Higher Yield: Dimensional accuracy reduced deformation/defects common in conventional methods.

✔ Faster Lead Times: Streamlined production accelerated delivery for the client.

Quality Assurance

Each liner underwent rigorous inspections to ensure performance reliability:

Hardness Testing: Verified wear/impact resistance met specifications.

Composition Analysis: Spectrometry and metallographic testing confirmed 26% Cr content and alloy compliance.

Dimensional Inspection: Custom gauges guaranteed assembly precision.

Liquid Penetrant Testing (PT): Detected surface cracks/defects for flawless finish.

Outcome

HAITIAN CASTING delivered high-consistency, ultra-wear-resistant liners on schedule, earning acclaim from the client and their end-users.

Conclusion

This collaboration showcased our expertise in high-chromium, heavy-tonnage casting and validated 3D sand printing’s superiority in efficiency and quality. Moving forward, we uphold our philosophy:

“Advancing Technology for Quality, Earning Trust Through Excellence.”

Contact us for custom large-size, high-chromium, precision castings!

Key Advantages of Our Liners

Material: 26% Cr high-chromium alloy for extreme abrasion resistance.

Process: 3D sand printing ensures ±0.5mm dimensional accuracy.

Reliability: PT/UT tested, hardness ≥58 HRC.