Recently, the painting process for a set of key SAG mill components — the bearing housing and girth gear — has been successfully completed at Sanland’s manufacturing workshop, marking another important step toward final delivery.

As critical components of the SAG mill drive system, the bearing housing and girth gear play essential roles in overall equipment performance. The bearing housing provides stable support and precise positioning for the main shaft system, while the girth gear transmits power through meshing with the pinion, ensuring smooth and continuous mill operation. Therefore, proper surface treatment and protective coating after machining are vital to long-term reliability.

The painting process was carried out in strict accordance with technical specifications. Prior to coating, thorough surface preparation — including rust removal, cleaning, and degreasing — was performed to ensure proper adhesion. Primer and topcoat were then applied in controlled layers, with careful monitoring of coating thickness and surface uniformity. Quality supervision was conducted throughout the process to ensure corrosion resistance and durability meet project standards.

For large-scale mining equipment, high-quality coating not only enhances the overall appearance of components but, more importantly, improves corrosion resistance under harsh working environments, extends service life, and reduces maintenance costs. The completion of painting for these key components demonstrates Sanland’s commitment to detail-oriented manufacturing and strict process control.

The components will now proceed to packaging and shipment preparation, ensuring readiness for subsequent assembly and project delivery.

Sanland remains dedicated to maintaining high manufacturing standards at every stage, delivering reliable and durable core components for mining operations worldwide.

We welcome your inquiries and look forward to providing professional technical solutions and competitive quotations.