The Shimadzu Axial Sensor Target 3003 is an OEM-compatible axial magnetic-floating positioning element designed for use with Shimadzu TMP-2003, 3003 and 3603 series turbomolecular pumps. This option part ensures precise axial position feedback for the magnetic bearing or levitation system, contributing to stable rotor alignment, reduced vibration, and reliable high-vacuum performance within the pump’s original operating envelope.
Intended for service, retrofit or spare-parts provisioning, this axial sensor target is manufactured to meet the dimensional and vacuum-compatibility requirements of the TMP-2003/3003/3603 family. For customers sourcing replacement components and related maintenance items, consult our dedicated parts resource: Shimadzu molecular pump non-standard maintenance parts.
Key features
- Precision-engineered axial target geometry for consistent sensor signal and repeatable axial positioning.
- Vacuum-compatible materials and surface finishes optimized to minimize outgassing and particulate generation.
- Balanced construction to preserve rotor dynamics and avoid introducing additional eccentricity.
- Direct fit for TMP-2003, 3003 and 3603 series—designed to match OEM mounting points and tolerances.
- Durable under normal pump service conditions; suitable for routine pump bakeout within manufacturer-recommended temperature limits.
Materials and compatibility
The axial sensor target is typically fabricated from non-magnetic stainless steel or coated alloys with embedded magnetic elements arranged to provide a stable axial reference signal. All materials selected are compatible with high- and ultra-high-vacuum (HV/UHV) environments when installed as part of the pump assembly. For full maintenance and non-standard option parts, see our parts guide: Shimadzu molecular pump non-standard maintenance parts.
Installation and replacement (general guidance)
- Power down and properly isolate the pump from the system; allow the rotor to come to a complete stop.
- Refer to the pump service manual for disassembly steps for the specific TMP model. Remove the necessary covers to access the axial sensor target location.
- Handle the sensor target and surrounding bearings with clean, lint-free gloves; avoid introducing contaminants into the vacuum cavity.
- Fit the target into the mounting seat, ensuring correct orientation and axial clearance per OEM specifications. Torque fasteners to the recommended values.
- Reassemble the pump, perform a leak check and run-in procedure according to Shimadzu guidelines to confirm proper sensor response and rotor behavior.
Maintenance, inspection and troubleshooting
- Regularly inspect the axial target for physical damage, wear or contamination during scheduled maintenance intervals.
- Clean with solvent compatible with pump materials (e.g., isopropyl alcohol) and allow to dry fully before reinstallation; do not use abrasive tools on precision surfaces.
- If sensor readings indicate axial drift, excessive vibration or repeated bearing alarms, verify sensor target alignment, connectors and cable integrity—replace the target if mechanical deformation is found.
- For replacement parts and assembly support, consult the parts catalog: Shimadzu molecular pump non-standard maintenance parts.
Ordering and packaging
Each Shimadzu Axial Sensor Target 3003 is supplied as a single service part. Items are packaged to protect precision faces and magnetic elements from shock and contamination during transit. When ordering, provide the pump model (TMP-2003, TMP-3003 or TMP-3603), pump serial number if available, and any applicable option codes to ensure compatibility.
Precautions
- Only trained service personnel should perform replacement or adjustment of axial positioning elements.
- Observe electrostatic discharge (ESD) precautions near magnetic sensors and electronic components.
- Do not expose the target to magnetic fields or mechanical impacts that could disturb its balance or magnetic properties.
For more detailed compatibility questions, lead times, or to request technical drawings and certificates, please contact the parts supplier or consult our maintenance parts page: Shimadzu molecular pump non-standard maintenance parts.
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