Brazilian Iron Ore Mining Enterprise

Client Information: A medium-sized iron ore mining enterprise in Pará state, northeastern Brazil, mainly engaged in iron ore mining, processing, and export. The enterprise processes approximately 1.2 million tons of iron ore annually, with 3 Φ4.2*6.5m ball mills in its production line.

Original Problems:

1. High Wear Rate: Previously used 120mm domestically produced forged steel balls had an average monthly wear rate of 8%, resulting in persistently high grinding costs per ton of ore

2. Long Delivery Cycle: Original supplier's delivery cycle was as long as 45 days, frequently leading to inventory shortages and affecting production continuity

Jinan Haoyang Casting and Forging customized a technical solution based on the client's ball mill parameters and iron ore hardness:

• High-carbon manganese alloy steel material

• Optimized steel ball density through fully automatic rolling process

• 860℃ precise isothermal quenching treatment

• Steel ball surface hardness stable at 62-64HRC, impact toughness reaching 18J/cm²

1. High Wear Problem: New steel balls reduced wear rate by 46%, significantly extending service life

2. Supply Instability: Delivery cycle compressed from 45 days to 25 days, achieving "order placement in current month, delivery next month"

3. Cost Control: Saved approximately 450,000 BRL (680,000 RMB) for the client within half a year

• Production Efficiency: Increased by 12%

• Economic Benefits: Saved approximately 450,000 BRL (680,000 RMB) in grinding costs within half a year

• Long-term Cooperation: Contract renewed as annual contract in April 2025, monthly supply increased to 40 tons

• Market Expansion: Client recommended 2 Brazilian iron ore enterprises, helping establish brand recognition in South American market