In the field of mining machinery, ring forgings are key components, and their quality directly affects the stability and service life of equipment. Jianing Forging provided a suitable ring forging solution tailored to the actual needs of a mining parts factory in Tianjin, improving component performance and production efficiency.

Project Background

This mining parts factory has long produced supporting ring parts for crushers, conveyors, and other equipment. The original process had issues such as insufficient internal microstructure of forgings and difficulty in controlling dimensional tolerances, resulting in a high defect rate during subsequent processing and a tendency for fatigue cracks under high-load conditions.

Customer pain points

• Insufficient strength: Harsh mining environments require annular forgings to withstand relatively high impact loads, and the original forgings frequently experience early failures during use.
• Accuracy fluctuations: The difficulty of stabilizing traditional open-die forging processes helps ensure uniformity of inner and outer diameters and wall thickness, increasing machining allowance and cost.
• Long delivery cycles: Multi-pass heating and repeated trimming processes extend production cycles, making it impossible to meet urgent customer orders.

Solutions and product advantages

Jianing Forging provided the project with ring-shaped forgings produced using fine ring rolling processes, addressing pain points through the following core measures:

• Material optimization: Selected alloy structural steel with excellent overall mechanical properties after quenching and tempering, achieving a balanced balance of strength and toughness.
• Relatively accurate forming: using CNC ring rolling machines for one-step forming, with outer diameter tolerances controlled within ±1.5mm and wall thickness differences of ≤0.8mm, reducing subsequent processing volume.
• Full-process inspection: Every forging undergoes ultrasonic flaw detection and hardness testing, ensuring there are no internal defects such as cracks or slag inclusions.
• Fast delivery: Through standardized process parameters and quick-change mold design, the production cycle for single pieces is shortened by 30%, meeting customers' urgent supply needs.

This case fully demonstrates Jianing Forging's technical expertise in the field of ring forgings for mining machinery. Through coordinated optimization of materials, processes, and inspection, it has reduced overall manufacturing costs for customers and improved equipment reliability.