Custom CNC Machined High Precision ±0.01mm Billet Construction Aluminum

Custom CNC Machined Precision Rotors, Bowls & Tube Holders — OEM Manufacturer & Factory

This custom aluminum centrifuge rotor is a high-speed rotating separation component produced entirely by CNC turning and milling from a solid aluminum billet. Designed for laboratory, industrial and medical centrifuges, as well as spin dryers and liquid-solid separation equipment, the bowl-shaped body integrates a central threaded shaft, a conical backplate and a precision array of tube holes around the rim. Every feature is generated directly from your 3D model rather than from a shared or off-the-shelf casting.

As an experienced CNC machining expert and OEM manufacturer, our factory holds dimensional tolerance to ±0.01 mm on bearing seats, bolt circles, threaded interfaces and runout surfaces. The rotor shown in the photos is a typical non-standard aluminum part: the rim holes are bored on a true-pitch circle on a vertical machining center, the conical exterior is interpolated on 3-axis or 5-axis equipment, and the center bore, register and thread are finished in a single chucking on a high-precision CNC lathe to minimize misalignment.

Mirror polishing, clear or black anodizing, bead blasting and hard-coat anodizing are available as post-processing, and we supply the part fully deburred, ultrasonically cleaned, laser-marked and, where required, dynamically balanced to your G-grade specification.

Unlike cast, stamped or welded rotors, a billet-CNC rotor has no internal porosity, no weld line and no core-shift risk — qualities that matter directly at the high surface speeds and repeated G-loads a centrifuge rotor experiences cycle after cycle. Material options include 6061-T6, 7075-T6, 2A12 and 5052 aluminum, with mill certificates, first-article inspection (FAI) reports and full dimensional CMM data supplied for every batch.

Our in-house metrology room is equipped with CMM, height gauge, dial indicator, surface roughness tester and thread gauges, so critical fits are verified before the part leaves the factory.

We support rapid prototyping, small-batch pilot runs and high-volume serial production, and our engineering team owns the complete workflow from your STEP or IGES file through process planning, tool-path programming, CNC machining, surface treatment, inspection and final anti-static packaging. You deal with one manufacturer and one supplier from the first chip to the shipping carton.

Common configurations we machine include fixed-angle rotors, swinging-bucket bowls, decanter screws, vertical-tube holders and fully customer-specific bowls. Our CAM programmers optimize tool paths for both surface finish and metal removal rate, and we run in-process checks every 5 to 10 pieces so batch variation stays inside your drawing tolerance.

Whether you are replacing an obsolete rotor, designing a custom laboratory centrifuge, scaling a new industrial separator, or sourcing a backup OEM rotor for after-sales service, we can tailor the geometry, hole count, thread specification, surface finish and balancing grade to your machine. Send us your drawing or a sample today, and our quoting team will return a detailed factory quote within one working day.

• Billet construction — CNC turned and milled from solid aluminum billet (6061-T6 / 7075-T6 / 2A12 / 5052).
• High precision — Dimensional tolerance down to ±0.01 mm on bores, threads, bolt circles and runout surfaces.
• Multi-axis CNC — 3-axis and 5-axis CNC capability for conical bowls, complex cavities and undercut features.
• True-pitch hole array — Precision pitch-circle hole pattern bored to true angular spacing for balanced tube loading.
• Finishing options — Optional dynamic balancing to G-grade, clear/black/hard anodizing, mirror polishing and laser marking.
• Inspection & traceability — Mill certificates, FAI reports and CMM inspection data supplied with every batch.

• Porosity-free billet metal for safe high-speed, high-G operation cycle after cycle.
• Single-supplier accountability from 3D drawing breakdown, process planning, CNC machining, surface treatment, QC to delivery.
• Fast turnaround — rapid prototyping, small-batch pilot runs and high-volume serial production under one roof.
• Tight concentricity and runout control extend bearing and shaft life and reduce vibration.
• Full material traceability and inspection records for medical, vacuum and aerospace customers.
• Direct factory pricing with no trading-company markup; a free, detailed quote within one working day.

Our CNC aluminum rotors and bowls are adopted by OEMs and end users across the following industries:

• Medical & Laboratory Equipment — Clinical and laboratory centrifuges, blood separators, diagnostic instrument rotors.
• Automation & Industrial Machinery — Spin dryers, decanter separators, industrial separator bowls and de-watering rotors.
• Semiconductor & Vacuum Equipment — Vacuum-compatible rotating components, spin test rotors and precision inspection fixtures.
• Automotive & New Energy Vehicles — Coolant de-watering rotors, separator wheels, sensor brackets and test-rig fixtures.
• Aerospace & UAV — Lightweight high-G test wheels, UAV spin components and instrument housings.
• Optical & Photonics Instruments — Spin-coating heads, optical spin fixtures and precision balancing wheels.
• Robotics — Rotary joint balancing rotors, robot base spin fixtures and AGV test components.
• Instruments & Metering — Precision metering rotors, flow-meter internals and laboratory device accessories.

• Precision CNC factory with proven ±0.01 mm capability on rotating and sealing-critical parts.
• One-stop service: 3D drawing breakdown, DFM feedback, process planning, tool-path programming, CNC machining, surface finishing, inspection and export packaging.
• 3-axis and 5-axis CNC machining of non-standard aluminum parts, complex cavities and thin-walled components.
• Flexible volume — prototype, small batch and mass production all welcome.
• Deep experience across consumer electronics, automation, semiconductor, medical, automotive, aerospace, optics, communications and robotics customers.
• Every tool path matters: each cut traceable to program, operator and inspection record — the detail behind every finished rotor.

• 3-axis and 5-axis CNC milling and turning of aluminum, stainless steel, copper and engineering plastics.
• Complex cavities, thin walls, tight-tolerance bores and custom non-standard aluminum components.
• Rapid prototyping, low-volume bridge production and high-volume mass manufacturing.
• Surface finishing: anodizing (clear, black, hard coat), polishing, bead blasting, passivation, silk screen and laser marking.
• Full quality control with CMM, FAI reports, material certificates and in-process inspection.
• One-stop OEM service: 3D drawing review, DFM feedback, process planning, CNC machining, assembly, packaging and export delivery.