Case Background

A heavy factory in Shaoxing, Zhejiang, has long used traditional cast steel parts as key load-bearing components. However, due to the harsh mining environment, the equipment endures high impact and wear, causing the original cast steel parts to frequently experience early fractures and insufficient lifespan, shortening downtime and maintenance cycles, seriously affecting production continuity and operating costs. The company urgently needed a more stable and durable alternative to improve overall equipment reliability.

Customer pain points

The prominent issues faced by this heavy mine in production include:

• Under heavy load, steel castings are prone to microcracks that can rapidly propagate and cause sudden component failure;
• Materials lack sufficient wear resistance, surface wear rates are fast, replacement frequency is high, and maintenance costs remain high;
• Casting defects such as porosity and shrinkage porosity inside castings lead to poor quality consistency and difficulty meeting high-precision assembly requirements;
• Existing suppliers had long delivery cycles and slow emergency responses, unable to cooperate with the mine's tight maintenance windows.

Product advantages and solutions

To address these pain points, Jianing Forging has custom-developed high-performance alloy steel forgings for the mine's heavy factory. By optimizing the alloy composition ratio, the hardenability and toughness of materials are improved; By adopting multi-directional forging technology, the grain structure is refined and casting defects eliminated, resulting in significantly better internal density and uniformity than the casting. At the same time, heat treatment parameters are adjusted specifically to achieve an ideal balance of hardness and strength, improving surface wear resistance while enhancing impact resistance. In addition, Jianing Forging has established a rapid response mechanism, shortening delivery cycles by more than 30% and coordinating with the mine's regular maintenance schedule to achieve on-time delivery. Actual installation verification shows that the service life of this alloy steel forging has increased by about 80% compared to previous castings, with a significant reduction in equipment failure rates, earning high recognition from customers.