Large Diameter Machining

Large Diameter Machining involves processing workpieces with a diameter exceeding 200 mm. These parts are commonly found in large reducer housings, wind power equipment, heavy machinery flanges, large pump bodies, and hydraulic cylinders. The main challenges in product are workpiece size and weight. Large parts are difficult to fixture and position. Cutting heat and vibration are harder to control. We have 20 CNC machining centers, 19 of which are 4-axis models. We use large rotary tables and custom fixturing systems. This allows us to stably process product parts up to 600 mm in diameter. We specialize in high-difficulty custom parts with micron-level precision. We are ISO9001:2015 certified.

Large Diameter Machining requires careful control of several factors. We use large chucks, custom fixtures, or clamping plate systems to ensure stable workpiece positioning. We match cutting speed, feed rate, and depth of cut to control heat and vibration. We use large-diameter face mills and boring tools for efficiency and surface quality. For critical dimensions, we use in-process measurement and real-time compensation. We also monitor workshop and cutting temperatures to reduce thermal deformation. Typical product parts include large flanges, reducer housings, wind turbine hubs, large hydraulic cylinders, and marine steering gear housings.

We use large-format CMMs for full dimensional inspection on Large Diameter Machining parts. We focus on bore diameter, hole position, flatness, and concentricity. We provide detailed inspection reports for your records. For mating and sealing surfaces, we use roughness testers to verify surface quality. Our standard process is: advance payment → raw material procurement → production → quality inspection → customer inspection → balance payment → shipment. Lead time is 15 to 20 days after we receive the advance payment. We support non-standard custom orders. Contact us with your drawings and specifications.