Enhancing Durability & Throughput with Precision Thread Rolling

A leading European heavy equipment OEM faced a critical challenge: bolted joint failures in high stress assemblies. After monitoring field returns and internal audit findings, the OEM partnered with King Group to integrate advanced thread rolling solutions within its supply chain.

Thread Integrity: Machined threads were exhibiting early fatigue cracks under cyclic loading, leading to frequent maintenance and warranty claims.

• Transitioned from cut threads to cold thread rolling, optimizing metal grain alignment.
• Retrofitted CNC header machines with customized dies matched to OEM specifications.
• Achieved Class 4H/4G thread tolerances, improving fatigue resistance and reducing burrs.

• Bolt Lifecycle increased by 60%, with no fatigue-related failures in the first year of use.
• Cost Savings: Overall component cost fell by 15%, due to reduced scrap and rework.
• Output Boost: Achieved a 30% increase in production throughput while maintaining zero-defect quality.

• Leveraged deep expertise in thread forming technologies, delivering end-to-end part optimization.
• Emphasized design-for-manufacturability, customizing tooling and process parameters to OEM needs.
• Enabled full traceability, with batch-level documentation spanning raw material sourcing to final inspection—a must for heavy equipment OEM compliance.

By implementing precision thread rolling, King Group improved component durability, reduced costs, and strengthened its position as a trusted manufacturing partner for high-performance parts