Case Summary

A hydraulic heavy factory in Beijing established a cooperation with Jianing Forging due to the demand for large ring forgings. This factory mainly produces key components of hydraulic systems, with strict requirements for dimensional accuracy, internal structural uniformity, and service life of annular forgings. Jianing Forging provided them with customized ring forging products, successfully applied to core components such as hydraulic cylinders and slewing bearings, supporting continuous equipment operation.

Customer pain points

The customer's original ring forging supplier had the following issues:

• Insufficient control of dimensional tolerances leads to frequent interference or excessive clearance during assembly, affecting the sealing performance of the hydraulic system;
• Internal defects such as looseness and segregation of forgings can lead to early fatigue cracking during use, resulting in high maintenance costs;
• Long delivery cycles cannot match customers' urgent production plans, resulting in losses from stoppages and material waiting.

Product advantages

Jianing Forging offers the following solutions to address customer pain points:

• Using CNC grinding ring technology combined with fine molds, the outer diameter tolerance of the ring forgings is controlled within ±0.5mm and the inner diameter tolerance ±0.3mm, meeting the needs of fine assembly;
• Through three-stage forging ratio design and temperature/cooling technology, grain refinement and segregation elimination reduce internal defect rates to below 0.1%, and service life is increased by 30% compared to the industry average;
• Optimized production scheduling, provided expedited services, and compressed the standard delivery cycle from 45 days to 28 days, effectively supporting customers' continuous production.