CNC Machining

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CNC Machining of
Flanges and Forgings
Our CNC machining capabilities focus on steel flanges and forgings, ensuring dimensional accuracy, proper fit, and reliable sealing through precise machining control. Machining processes are defined based on forging structure, material grade, and applicable standards, covering both standard and custom non-standard flange forgings.
Machining Forged Flanges

Turning of outer diameter, bore, and facing

Precision boring of inner holes to ensure concentricity and surface quality

Drilling of bolt holes per standard PCD or drawings

Finish facing of sealing surfaces for flatness

Tapping of threaded holes as required

Milling of non-standard grooves, keyways, and special features

  • CNC Equipment

    Equipped with CNC lathes, vertical and horizontal machining centers, and dedicated tooling for flanges and forgings of various sizes. Machining solutions are selected according to size and tolerance requirements.

  • Machining Accuracy

    Critical dimensions such as flange thickness, bore size, bolt circle, and sealing face geometry are strictly controlled, with in-process and final inspections to ensure compliance with applicable standards and customer specifications.
Jiangyin Zhonghai Precision Machinery Co., Ltd.
Custom Flanges .
For non-standard or special conditions, we offer custom flanges and forgings. Share your drawing or key parameters, and we will evaluate and quote quickly. Small batches and mass production are both supported, with optional heat treatment, machining, and surface finishing.
Contact Us Jiangyin Zhonghai Precision Machinery Co., Ltd.
Jiangyin Zhonghai Precision Machinery Co., Ltd.