OEM Cnc Machined Aluminum Parts Grooved Disc Pulley For Industrial Machinery

Product Summary

This custom radial ribbed hollow flange disc is manufactured with full 5-axis turn-mill composite machining, integrating the full circumference of curved lightening slots, 16 symmetric radial reinforcing ribs, central precision positioning spigot, and full ring of evenly distributed mounting holes all formed in one single anti-deformation fixture workflow. This large diameter thin disc component is engineered for servo motor end connecting flanges, automation rotary indexing turntables, new energy EV transmission adapters, and aerospace lightweight connecting structures, strictly controlling disc flatness, spigot concentricity, and radial rib symmetry, to guarantee zero wobble, ultra low rotation inertia and perfect dynamic balance under high speed operation.

Product Overview Highlights

• 5-Axis One-Piece Machined Radial Hollow Flange Disc
• Symmetric Radial Reinforcing Rib Structure (Lightweight + High Stiffness)
• Large Diameter Full Disc Anti-Deformation Machining
• Spigot Concentricity & Mounting Hole Runout ≤ 0.012mm
• Pre-Calibrated Dynamic Balance G2.5 Grade

Full Product Description

Custom 5-Axis Radial Ribbed Hollow Aluminum Flange Disc

This ultra-lightweight hollow flange disc is produced on 5-axis simultaneous turn-mill center with dedicated anti-deformation vacuum fixture, eliminating the thin disc chatter deformation that always happens on conventional 3-axis milling machines. Every feature on the part — including the central positioning spigot and bolt holes, the full ring of outer mounting holes, all 16 curved lightening hollow slots, and every radial reinforcing rib — is machined in one single clamping cycle, so all radial ribs keep perfect 100% symmetric distribution relative to the disc center, no weight offset that breaks dynamic balance, the overall disc stiffness is 2.7x higher than a full hollow thin disc without reinforcing ribs.

We support a wide selection of material grades to match different operating scenarios: 6061-T6 aluminum for most general automation and transmission applications, 7075-T6 aluminum for high strength lightweight aerospace parts, 304 / 316 stainless steel for corrosion resistant industrial environments, and 6063 aluminum for low load equipment end covers. Every finished flange disc goes through 3 full inspection steps before packaging: full disc flatness CMM check, spigot concentricity test, and dynamic balance calibration, to make sure it runs stably without vibration even at 6000RPM continuous rotation.

Specification Table

Core Machining Features (Processing Highlight Section)

1. Dedicated Custom Anti-Deformation Vacuum Fixture: The entire thin flange disc is fully adsorbed on the precision fixture datum plate during full machining, no floating or chatter vibration when cutting the thin wall lightening slots, no warp or deformation released after fixture unclamping.

2. Radial Rib Symmetric Synchronous Milling: All curved lightening slots and radial reinforcing ribs are milled with symmetric path distribution on 5-axis machine, every adjacent rib shares identical thickness, length and section shape, perfect weight symmetry across the full disc.

3. Full Ring Mounting Holes One-Setup Drilling: All distributed bolt mounting holes around the outer flange are interpolated in the same single clamping, no secondary repositioning error, 100% of the holes share the same concentricity relative to disc center, no misalignment when mating to your connecting part.

4. Double Face Synchronous Precision Grinding: Both top and bottom datum faces of the flange disc are ground on double surface grinder after all cutting operations, full disc flatness ≤ 0.015mm, no tilt, the disc will keep perfect parallel fit when installed between two mating parts.

5. Pre-Dynamic Balance Calibration: Every finished disc is sent to dynamic balance tester before delivery, the tiny unbalance point can be removed on the spot, the final balance grade reaches G2.5, no resonance vibration even running at 6000RPM long time.

Product Advantages

• Ultra lightweight with maximum stiffness: The radial rib structure removes unnecessary material on the hollow area, the total weight is 45% lighter than a full solid flange disc, while the anti-twist rigidity keeps at the same level, drastically reduces rotation inertia for high speed transmission.

• Zero thin disc deformation performance: The custom anti-deformation fixture and optimized low feed high speed cutting parameters eliminate all internal residual stress, the disc will not warp or change flatness after months of use.

• Perfect interchangeability between batches: All discs keep the same symmetric rib distribution, same flatness and same concentricity, you can replace old flanges on site without re-calibrating the dynamic balance, no extra assembly work needed.

• 100% custom to your drawings: We support full custom outer diameter, rib quantity, mounting hole layout, spigot dimension, material selection and surface finish, from 1 prototype piece to 1000+ mass production batches, fully follow your 2D/3D CAD files or original part samples.

• Full traceable quality control: Every order comes with material test certificate, full flatness inspection report, and dynamic balance test record, you don't need to spend extra labor on incoming quality check.

FAQ

Q1: Can you manufacture this custom radial hollow flange disc exactly following my own engineering drawings or 3D models?
A1: Absolutely yes — we provide full turn-key custom 5-axis CNC machining service for lightweight thin disc components. You only need to upload your 2D/3D design files or send us your original sample, our engineering team will run free DFM review and confirm every critical point before starting production.

Q2: Which material do you recommend most for this radial ribbed hollow flange disc?
A2: For most automation transmission scenarios, 6061-T6 aluminum with hard anodizing is the top pick, it balances lightweight, excellent rigidity and wear resistance. For high strength aerospace applications, 7075-T6 aluminum is the best option.

Q3: What is the highest precision you can guarantee for this large diameter thin flange disc?
A3: We can hold central spigot concentricity ≤ 0.012mm, full disc flatness ≤ 0.015mm, the dynamic balance grade can reach G2.5, meets the zero-vibration requirement for high speed rotating systems.

Q4: What surface treatments do you support for this hollow aluminum flange disc?
A4: We support fine brushed aluminum finish, hard anodizing, transparent / color anodizing, black oxide, and electropolishing. You can select the exact treatment that matches your equipment appearance and operating environment.

Q5: Can you accept small batch prototype orders for this custom flange disc?
A5: Yes, small batch prototype orders are fully supported. The MOQ will depend on part complexity, we will confirm the exact lead time and MOQ with you after sending formal quotation.