Custom CNC Machined Flange with Stepped Structure and Circumferential Threaded Holes for Multi-Directional Assembly

Custom CNC Precision Metal Flange Parts

Custom CNC precision metal flanges are high-precision machined components engineered for mechanical connections, equipment installation, and structural assembly. Each part features a circular main body with a stepped boss, integrating elements such as a central bore, circumferentially arranged threaded holes, and lateral holes. All components are manufactured to custom specifications based on client engineering drawings and assembly requirements.

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

For flange components featuring stepped geometries, central bores, and multiple sets of threaded holes, we develop tailored machining and inspection protocols—accounting for specific structural designs, materials, dimensional tolerances, and fit requirements—to ensure they meet the connection and assembly needs of various mechanical systems and equipment.

• 1. Stepped Flange Structure Machining

  The product features a circular flange, raised bosses, and a stepped structure with varying diameters. We machine the outer diameter, end faces, steps, and other contours according to engineering drawings to meet specified dimensions and assembly requirements.

• 2. Precision Center Hole Machining

  Center holes can be produced via drilling, boring, or other appropriate internal machining methods to meet requirements for hole diameter, roundness, coaxiality, and fit. The specific process is determined by the material and dimensions.

• 3. Circumferential Threaded Hole Machining

  We machine multiple threaded holes distributed circumferentially according to customer drawings, ensuring precise control over hole diameter, thread specifications, hole spacing, and positioning to facilitate bolting and equipment installation.

• 4. Multi-Directional Hole Machining

  For features such as radial holes on the outer diameter or other non-axial elements, we evaluate processes—including CNC milling, drilling, and tapping—based on the part's structure to satisfy assembly requirements from various directions.

• 5. Multi-Process Precision Manufacturing

  Depending on the product's geometry, we employ a combination of processes such as CNC turning, milling, drilling, boring, and tapping. For parts requiring multi-sided machining, we assess the use of multi-axis machining or multi-setup strategies based on the specific structural design.

• 6. Material and Surface Treatment Options

  We select appropriate metal materials and surface treatments based on the product's required strength, corrosion resistance, wear resistance, and operating environment. Specific material grades, heat treatments, and surface finishing requirements are confirmed according to the customer's technical specifications.

• 7. OEM/ODM Customization Based on Drawings

  We offer manufacturing solutions based on 2D engineering drawings, 3D CAD files, or qualified samples. We manage the entire lifecycle—from prototype development and small-batch trial production to full-scale mass production—tailored to your project requirements.

• Industrial Equipment Connection Components: Designed for use as equipment mounting flanges, mechanical connecting plates, or other components requiring a central bore and peripheral threaded holes.
• Precision Mechanical Equipment: Suitable for custom mechanical parts featuring stepped structures, precision internal bores, and multiple sets of mounting holes; can be used for structural integration and component assembly within equipment.
• Shaft and Rotary Component Assemblies: Provided that the central bore, keyway, or mating features meet specific assembly requirements, these parts can be used in shaft assemblies, rotary mechanisms, or related mechanical connection systems.
• Automation Equipment: Depending on the equipment design, these can serve as positioning components, mounting bases, flanges, or other non-standard mechanical parts; specific applications should be verified against design drawings.
• OEM/ODM Custom Projects: Suitable for prototype development, sample validation, small-batch trial production, and mass production for industrial equipment manufacturers, mechanical component purchasers, and automation system integrators.

CNC machining equipment and process

Quality inspection of precision parts

• ✓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