The S-ASA automatic slack adjuster utilizes three powder metallurgy components: the clutch, pinion, and ring gear. Unlike conventional second-generation designs, Longzhong’s second-generation model eliminates the need for a one-way clutch gear and transmission ratchet gear.

The product undergoes 9 manufacturing processes and 4 performance inspection stages. This advanced manufacturing approach ensures superior product performance while delivering enhanced dimensional stability and improved aesthetics, resulting in higher product qualification rates.

Naiqiang has supplied over 5 million sets to Longzhong Group. Through independent R&D, Naiqiang has developed the large helical gear – a core component of the S-ASA automatic slack adjuster. This component incorporates Naiqiang’s key manufacturing technologies, with performance fully comparable to traditional steel components. It effectively improves production efficiency while helping customers achieve higher quality and lower costs.