Machined Steel Linear Actuator Assembly with Gear Segment

Material selection for a rack and pinion linear slide determines tooth wear rate and rail surface hardness; case-hardened carbon steel provides the surface hardness needed for rack tooth flanks in high-cycle industrial automation and military positioning systems, while anodised aluminium alloy reduces moving mass in lightweight drone payload stages and automotive actuator assemblies. Chongqing Jiangjin Changfeng Precision Machining (Chongqing, established 2001, Degan Industrial Park) mills and turns this rack and pinion linear slide using 5-axis milling, boring & milling, and wire EDM at their around 20,000 m² Chongqing facility, with rack pitch, tooth profile accuracy, and rail straightness confirmed per your released dimensions at sample review. ISO 9001 certification covers aerospace, automotive, and military rack and pinion linear slide applications. For quoting, include rack pitch, tooth profile, rail length, straightness tolerance, and material specification for a production quotation from our Chongqing engineers.