A Copper Mine Concentrator in North America - ASGCO Armorite® Bimetallic Liner Extends Wear Life by 6 Times

This copper mine concentrator is faced with extremely harsh wear conditions: the ore has high abrasiveness, and 2"-3" steel balls from the SAG mill often enter the conveying and crushing system, resulting in high impact and abrasion on the liner. The previous wear plates supplied by two well-known manufacturers (Sandvik® HX900 and Esco® Kwik-lok® carbide liner) had an average service life of only 6-8 weeks and were prone to cracking under high impact, which seriously affected the operation efficiency of the concentrator.

ASGCO provided a Armorite® laminated bimetallic wear-resistant composite liner for the mine. The liner is made of modified AS 2027 15/3 CrMo white cast iron as the wear-resistant layer (hardness up to 700 Brinell / 63 HRC), with mild steel as the base layer. It is processed by vacuum brazing and liquid nitrogen cooling to form a high-strength bonding zone, and supports multiple installation methods such as welding, bolt connection and stud bolt connection.

One-time installation and commissioning, with a continuous operation test of 12 months and real-time tracking of liner wear and equipment operation data.

1. The wear life of the Armorite® liner was 6 times longer than that of the original brand liner, and the actual service life reached 1 year, completely solving the problem of short service life of the liner.
2. The bimetallic structure realized the perfect combination of impact resistance and wear resistance, and there was no cracking or peeling of the liner during the 1-year operation period.
3. The liner has strong versatility and easy installation, which shortens the replacement time and reduces the labor cost of maintenance.
4. The long service life of the liner significantly reduced the frequency of equipment shutdown and replacement, and the production efficiency of the concentrator was improved by more than 30% compared with the original.

The liner not only brought huge cost savings to the mine in terms of material purchase and maintenance labor, but also reduced the production loss caused by shutdown, and the comprehensive economic benefit was significantly improved. The mine has promoted the application of Armorite® liner to other high-wear parts such as chute lining, rock box edge and grizzly cap.