OEM/ODM Custom CNC Turning Parts and CNC Turned Parts with Multi-Stepped Shaft Structure and Internal Hexagonal Hole Machining

Custom precision CNC stepped shaft components are high-precision metal mechanical parts manufactured according to customer engineering drawings. These components feature a multi-stepped cylindrical design, incorporating elements such as varying outer diameters, annular shoulders, internal hexagonal (hex) sockets at the ends, and external hexagonal or flat sections. Depending on the specific design, they are used for mechanical connections, positioning, tool actuation, or other assembly applications.

Shenzhen Hongsinn Precision specializes in the OEM/ODM manufacturing of custom, non-standard precision components. Based on 2D engineering drawings, 3D CAD models, or qualified samples provided by the client, we evaluate the optimal CNC processes—such as turning, milling, and drilling—to deliver comprehensive manufacturing solutions, ranging from prototype development and small-batch pilot runs to full-scale mass production.

For shaft components featuring multiple outer diameters, precise shoulders, and specialized end geometries, we develop tailored machining and inspection protocols that account for material specifications, dimensional tolerances, coaxiality, surface roughness, and specific assembly requirements.

1. Precision CNC Machining of Stepped Shafts
   Utilizing CNC turning processes, we machine cylindrical sections of varying diameters, end faces, steps, and transition features. Critical dimensions are controlled in strict accordance with customer drawings and specified tolerances.
2. Internal Hexagonal Hole Machining
   The ends of the components can be machined with internal hexagonal holes. Hole depth, across-flat dimensions, and other mating features are customized to meet specific requirements for tool engagement, connection, or assembly.
3. External Hexagonal and Flat-Surface Machining
   For external multi-planar structures, we employ processes such as CNC milling to achieve precise external hexagonal dimensions, flat-surface widths, and the necessary clearance for assembly.
4. Multi-Diameter and Stepped Shaft Structures
   We can machine shaft segments of various diameters and lengths, as well as annular steps, to facilitate component positioning, assembly, and structural integration. Specific configurations are based on the customer's engineering drawings.
5. Dimensional and Surface Quality Control
   We perform rigorous inspections—covering critical outer diameters, step lengths, coaxiality, end-face perpendicularity, and surface roughness—to ensure compliance with product functions and technical specifications.
6. OEM/ODM Customization Based on Drawings
   We support customization based on customer-provided 2D drawings, 3D CAD files, or qualified samples. We evaluate manufacturing solutions—considering materials, structural design, machining precision, and order volume—to support your needs throughout various stages of product development and procurement.

1. Precision Machinery and Equipment
   Depending on the specific structural design, these components can be used as shaft-type connectors, stepped shaft assemblies, or other custom parts requiring varying outer diameters and positioning shoulders.
2. Automation Equipment
   Suitable for components in automation equipment that require precise rotational structures, mounting/positioning features, or specialized end-connection configurations. Specific applications should be determined based on the equipment design.
3. Mechanical Transmission Components
   Provided that the material, dimensions, and mechanical properties meet design specifications, these parts can serve as shaft-related components or connecting elements within transmission mechanisms. Actual load-bearing capacity must be verified against design requirements.
4. Tooling, Fixtures, and Positioning Mechanisms
   Depending on the structural design, these can be utilized in tooling, fixtures, positioning mechanisms, or mechanical assemblies featuring specific end-drive configurations.
5. Industrial Equipment OEM Custom Projects
   Suitable for sample development, small-batch trial production, and mass production projects for industrial equipment manufacturers, mechanical system integrators, and component purchasers.

• Established in 2010, with over 15 years of experience in precision machining
• ISO 9001:2015 Quality Management System certified
• ISO 14001:2015 Environmental Management System certified
• Equipped with the AFMING GMU-800 EVO 5-axis machining center
• Extensive inventory of CNC lathes, turn-mill centers, and machining centers
• Inspection using Zeiss CONTURA Coordinate Measuring Machines (CMM)
• Supports rapid prototyping, as well as small-batch and high-volume production
• Products exported to markets in Europe, the US, Germany, Japan, Canada, and Southeast Asia