1. Project Background
The client is a large mining contractor based in Indonesia, operating a mixed fleet of Komatsu HD465/HD785 dump trucks and PC1250, D275, D375 machines. Due to heavy-load operation and long working hours in coal and nickel mines, the client needed reliable and durable bearings and bushings to reduce downtime.
2. Client Requirements
The customer required a full package of wear components for Komatsu machines, including:
HD465 & HD785 → Final drive bearings, differential bearings, suspension bushings
PC1250 → Swing bearing, boom bushings, track roller bearings
D275 & D375 → Equalizer bar bushings, idler bearings, track frame bushings
The components must withstand high temperatures, dust, and continuous impact loads.
3. Our Solution
To meet the harsh mining conditions, we provided:
✔ High-strength GCr15 bearing steel
Ensures high load capacity and improved fatigue resistance.
✔ CNC-machined bushings with enhanced surface hardness
Wear resistance increased by 20–30%.
✔ Full OEM-compatible sizing
All parts match Komatsu specifications for HD465/HD785/PC1250/D275/D375.
✔ Fast production & packing
123 different models delivered within 5 days.
4. Results & Performance
After 6 months of field operation:
Bearing failure rate reduced significantly
Bushing wear decreased by over 30%
Customer downtime reduced and maintenance interval extended
The fleet achieved higher stability in coal and nickel mining sites
The clent placed a repeated order for long-term cooperation
5. Client Feedback
“The bearings and bushings supplied fit perfectly and last longer than our previous parts. Excellent performance for HD785 and PC1250 machines. We appreciate the fast delivery.”
6. Why This Case Is Successful
Full mdel coverage for five Komatsu machines
Excellent performance in extreme mining environments
OEM-level precision and long lifespan
Fast production and export packing
Strengthened long-term cooperation with mining contractors
