Shimadzu Axial Rotor Disk 3304 TMP 3304 Series Molecular Pump Optional Part

This product page describes the Shimadzu Axial Rotor Disk for the TMP-3304 series molecular pump. The axial rotor disk is a precision-machined non-standard (option) part designed specifically for TMP-3304 series turbo molecular pumps where rotor geometry and balance are critical to restoring or maintaining nominal pump performance.

The axial rotor disk is an essential rotating component that interfaces directly with the rotor assembly. It is manufactured to strict tolerances to preserve the pump’s axial flow characteristics, minimize vibration, and maintain high rotational balance at the extreme speeds typically required by TMP-3304 series units.

Key Features

• Precision CNC-machined from high-strength stainless steel or specialty alloys for long service life and dimensional stability.
• Dynamic balancing compatible with TMP-3304 rotor specifications to reduce vibration and bearing loading.
• Surface finishes optimized to prevent fretting and to preserve gas-flow patterns inside the rotor channel.
• Direct fit for TMP-3304 series assemblies—no custom modification required when replacing OEM axial disks.
• Manufactured as a non-standard option part for repair shops and service operations to return pumps to OEM performance.

Typical Applications

The axial rotor disk is used in high-vacuum systems employing the Shimadzu TMP-3304 series molecular pumps. Typical application areas include semiconductor fabrication, thin-film deposition, mass spectrometry, research vacuums, and any process requiring ultra-clean, high-speed turbomolecular pumping.

Compatibility

Specifically designed for the TMP-3304 series. Always verify your pump’s model designation and serial number before ordering replacement rotor components. If you require assistance confirming compatibility, see our support and parts listing: Shimadzu Molecular Pump Option Parts.

Installation & Handling

• Install only after the rotor and bearings have been inspected and cleaned; contamination or embedded particles will affect balance and life.
• Use appropriate anti-seize compound where specified by your maintenance manual; avoid contamination of magnetic or bearing surfaces.
• Handle with gloves and soft tools to avoid fingerprints, scratches, and dents that could alter flow performance.
• Balance check: after installation, perform a dynamic balance verification on an approved balancing rig or follow the OEM service procedure for the TMP-3304 series.

Maintenance & Inspection

Regular inspection of the axial rotor disk can extend pump life. Recommended checkpoints:

• Visual inspection for nicks, dents, or corrosion on the disk surface.
• Measure runout and concentricity against OEM tolerance sheets when reassembling the rotor stack.
• Replace the disk at the first sign of surface fatigue, deformation, or if dynamic balance cannot be restored within allowable limits.

Material & Quality

Manufactured from materials chosen for vacuum compatibility, low outgassing, and mechanical stability at high rpm. Parts are produced under controlled machining and cleaning processes to meet cleanliness levels demanded by high-vacuum applications.

Packaging, Lead Time & Warranty

• Shipped in protective vacuum-safe packaging to avoid contamination during transit.
• Typical lead time depends on stock status; expedited options may be available for service centers.
• Parts are supplied with limited warranty against manufacturing defects—please check specific warranty terms at time of purchase.

Why Choose a Proper Axial Rotor Disk?

Using a correctly specified axial rotor disk for the TMP-3304 series restores the pump’s intended aerodynamic profile and balance, which directly affects ultimate vacuum, pumping speed, bearing life, and vibration behavior. Substituting an incorrect or damaged disk can lead to accelerated wear, higher noise and vibration, and reduced pump reliability.

For spare parts, repair assistance, or to verify part numbers and availability for the TMP-3304 series, please consult our parts resource: Shimadzu Molecular Pump Option Parts. For service guidance and OEM-equivalent replacements, view our parts catalog: Shimadzu Molecular Pump Option Parts.

Note: This axial rotor disk is offered as a non-standard option part compatible with Shimadzu TMP-3304 series molecular pumps. Always follow the pump manufacturer’s safety and service instructions when performing replacements. Contact your authorized service provider if you are unsure about installation or part selection.