Long‑term Supply of Ball Mill & Crusher Spare Parts

Challenges

Several ageing ball mills on‑site require custom‑made end covers, liners and girth gears according to original drawings with strict dimensional tolerance. Parts from former suppliers failed to fit properly, resulting in costly mine downtime.
Spare parts demand high wear‑resistant material performance with reasonable procurement cost.
Long ocean shipment from China to Antofagasta port carries risk of cargo damage. Complete material certificates, inspection documents and customs papers are mandatory for Chile import clearance.
Mine downtime brings heavy financial losses. Stable delivery is essential, with shorter lead‑time for urgent maintenance orders.

Our Solution

Our technical team double‑checked original equipment drawings, issued confirmed manufacturing drawings before production to avoid assembly mistakes.
Proper wear‑resistant alloy steel was adopted for ball mill end covers, liners, girth gears and high‑chromium grinding balls. Spectrometer material test reports and dimension inspection reports were provided for every batch.
Heavy castings were fixed with reinforced steel frames against damage during long‑distance sea transit. Full set of customs documents including packing list, commercial invoice, certificate of origin and material certificates were prepared to meet Chile import regulations.
Dedicated production schedule reserved for this client. Standard order lead‑time 60 days; expedited production channel available for emergency maintenance orders. Production, NDT inspection and container‑loading photos were shared periodically.
Online technical support for installation guidance after shipment.

Results

First order: 1*40HQ container loaded with ball mill end covers, liners and girth gears, smoothly delivered to Antofagasta port with trouble‑free customs clearance.
All spare parts fit well on site and achieve expected service life, reducing unexpected equipment downtime.
2‑year cooperation developed from trial order to annual framework purchase, total 16 containers shipped with repeated orders.
Overall procurement cost reduced by around 18% compared with their previous supply sources.