Shanxi Jianing Forging has collected real-world engineering cases of long shafts, short shafts, drive shafts, and marine nuclear power shaft forgings, fully showcasing the forging process of shaft forgings, finished product precision, and practical application scenarios for heavy equipment.
A mining equipment factory in Yuxi, Yunnan, has long used large shaft forgings for key equipment such as crushers and conveyors. Due to harsh mining conditions, existing forgings frequently experience fatigue fracture and surface wear, seriously affecting equipment operating efficiency and production safety. After extensive research, the factory ultimately selected Jianing Forging as a partner to customize high-performance shaft forging solutions.
Existing shaft forgings encounter three major challenges during use: First, insufficient material toughness, which easily causes microcracks and propagates into fractures under high impact loads; Second, surface hardness does not meet standards, causing rapid wear of the shaft journal due to ore particles, resulting in increased clearance and intensified vibration; Third, poor dimensional consistency, requiring repeated repairs during replacement, and prolonged downtime for maintenance. These issues directly increase spare parts costs and maintenance frequency, restricting mine capacity release.
Jianing Forging addresses these pain points by providing systematic solutions from three aspects: materials, processes, and testing. High-quality alloy steel ingots are selected, and through multi-directional forging and temperature-controlled cold treatment, the shaft forgings achieve a uniform and fine internal structure, thereby improving impact toughness. At the same time, a relatively precise heat treatment process is used to stabilize surface hardness within the customer's required HRC range, and it is equipped with a wear-resistant hardened layer to effectively resist ore wear. The entire process uses CNC machining and coordinate measuring machines to help dimensional tolerances meet high-precision assembly requirements, enabling on-site maintenance-free replacement. The final delivered shaft forgings extend the service life of the original products by more than 80%, helping the mine reduce overall maintenance costs and supporting continuous equipment operation.
