Mining & Quarry - Discarder washer- Stirring blades - Stationary equipment - Italy - +33% lifetime

Objective

Evaluate the performance of Creusabro^® 4800 versus standard 400 HB water-quenched steel in stirring blades used in a washer system, with the goal of increasing wear life and reducing maintenance frequency in wet, abrasive conditions.

Test Conditions

• Location: Quarry site in Italy

• Environment: Wet and abrasive conditions within a washing unit, where blades continuously stir aggregates and discard waste materials, leading to significant erosive and abrasive wear.

• Function: Stirring blades responsible for agitating and cleaning material during the washing process.

• Original material: 400 HBW water-quenched steel

• Replacement material: Creusabro® 4800, processed by flame cutting and drilling.

Results

• The original 400 HBW blades reached a lifespan of 6 months before requiring replacement.

• The Creusabro® 4800 blades extended service life to 8 months, representing a +33% improvement under identical working conditions.

• The use of standard cutting and drilling techniques enabled a smooth fabrication and replacement process.

Value Delivered

• Extended Service Life: +33% wear life helped reduce the number of shutdowns and replacement cycles.

• Improved Resistance in Wet Environments: Creusabro® 4800’s microstructure offered enhanced performance in moist and abrasive conditions.

• Cost Reduction: Less frequent blade changes decreased labor costs and spare part consumption.

• Ease of Implementation: Fully compatible with existing design and processing methods, ensuring a fast and trouble-free transition.

Conclusion

By switching to Creusabro® 4800, COOP Costruzioni and Abraservice implemented a more durable and efficient solution for washer stirring blades, achieving a 33% increase in service life with simple integration.

Creusabro® 4800 confirms its value in wet and abrasive quarry applications, where standard steels often fall short in durability and reliability.

Comparative test