The grinding line is built around five-axis CNC form grinding machines, an intelligent line-side warehouse, loading/unloading & inspection stations, and a coordinate measuring machine as its core equipment, with the HF-PCS serving as the intelligent control system. It primarily undertakes the finish machining of high-precision structural parts, precision formed parts, high-accuracy transmission parts, and semiconductor-class precision components.
As the process with the highest precision grade among all process types, it receives workpieces roughed and semi-finished by the milling and turning lines, achieving micron-level dimensional accuracy and ultra-smooth surface quality. At the same time, it provides high-precision reference surfaces for EDM and die-sinking EDM, ensuring the locating reliability of subsequent special-process machining.
The line's greatest challenge lies in machining compensation and dynamic pose adjustment. Real-time, precise compensation and pose correction must be applied for material deformation, grinding-wheel wear, and clamping deviation. Through proprietary algorithms and a full-closed-loop adaptive manufacturing system, the company achieves high-precision, stable machining.
Compared with other lines, grinding does not pursue large stock removal; instead, it focuses on final accuracy and surface-quality forming, forming a "rough forming — fine finishing" process loop with turning and milling. It is the core line through which high-end precision parts achieve final quality compliance and where the company's ultra-precision machining capability is demonstrated.

The milling line is configured around milling machining centers, CHINAF's fifth-generation precision cleaning equipment, and the HF-PCS intelligent control system. It mainly processes complex cavities, box-type structural parts, irregular structural parts, and precision structural components for the hydraulic and new-energy sectors, featuring strong capabilities in complex spatial-profile forming and large-stock-removal cutting.
The line takes on the main machining tasks from blank to structural forming. It can independently complete the full-process machining of medium-precision parts, and can also supply finish-machining blanks for grinding and structural substrates for EDM.
Through the company's proprietary multi-process compatible automatic changeover system, the line meets multi-variety, small-batch, flexible production needs by enabling rapid automatic changeover of fixtures, jigs, and cutting tools as well as one-click model switching, substantially shortening line reconfiguration time and raising overall flexible-production efficiency.
Among the four major lines, milling offers the broadest structural adaptability and the strongest forming capability. Together with turning, it forms the basic machining system. Distinguished from turning's focus on rotational bodies, grinding's ultra-precision finishing, and EDM's special micro-machining, it is the concentrated expression of the company's intelligent manufacturing capability for complex structural parts.

The EDM line integrates key equipment such as electrode racks, wire-electrode racks, and laser measuring machines, and relies on the HF-PCS to achieve fully automated operation across the whole process. It is mainly aimed at micro-holes, narrow slots, complex cavities, high-hardness difficult-to-cut materials, and micro-structure parts that are hard to realize by conventional cutting.
The line covers both core processes of EDM and die-sinking EDM, supports automatic electrode change, and adopts a non-contact, stress-free machining approach. As a special-process supplementary line, it receives parts after milling, turning, and grinding have completed the main machining, and realizes high-precision micro-features and complex-cavity forming.
The line's core technical challenge lies in high-precision pose adjustment — precise alignment and pose compensation of electrodes and workpieces must be achieved within tiny spaces. Through vision-positioning and motion-control fusion technology, the company effectively resolves the locating difficulties in machining thin-walled parts, micro-structures, and high-hardness materials.
Compared with the other three contact-cutting lines, EDM has no cutting force and no deformation interference, forming a "conventional forming + special finishing" complementarity with the other lines, and demonstrating the company's comprehensive edge in full-process coverage of complex, high-precision parts.

The turning line is configured around turning machining centers, centralized coolant supply, centralized chip removal, and HF-PCS intelligent control. It specializes in the efficient roughing and semi-finishing of rotational-body parts such as shafts, disks, and sleeves, supplies qualified blanks for subsequent grinding, and provides rotational-base parts for EDM and die-sinking EDM. Together with the milling line, it constitutes the basic machining capability, covering the two major domains of rotational bodies and complex structural parts respectively.
The line's core challenge and highlight lie in high-efficiency automatic tool changing. Facing multi-operation, multi-tool, continuous-machining demands, it realizes intelligent tool-magazine management, wear monitoring, and rapid tool change, ensuring the stability and consistency of long-duration unmanned machining.
Compared with grinding's ultra-precision compensation, EDM's precision pose adjustment, and milling's flexible changeover, the turning line has a higher degree of specialization and more prominent machining efficiency. At the same time, its centralized coolant-supply and chip-removal systems provide utility support for other lines in the workshop, supporting the stable operation of the whole line system while ensuring its own efficient running — reflecting the company's mature advantages in automated, scaled, and intensive production.