Shimadzu Option Parts Radial Unit 1 Assy for TMP 3003 3603 Series Molecular Pump

This listing describes the Shimadzu Option Parts Radial Unit 1 Assy 3003 — a factory-original repair assembly that contains a Radial Magnet Bearing 1 (radial electromagnetic bearing) and Radial Sensor 1. It is intended for maintenance and repair of TMP-3003 and TMP-3603 series molecular pumps, restoring radial support and position sensing functions required for stable high-speed rotor operation.

The assembly is an OEM component designed to match the original mechanical interfaces, electrical connectors and sensor calibration characteristics of the TMP-3003/3603 family. Use it when a pump exhibits increased vibration, unstable rotor levitation, repeated bearing trips, or when diagnostics indicate degraded radial sensor signals.

Key benefits:

• Direct OEM replacement: restores factory tolerances and dynamic performance.
• Integrated pair: radial electromagnetic bearing and matching radial position sensor are supplied together to ensure correct interaction and calibration stability.
• Reduced downtime: plug-and-play mechanical fit reduces disassembly time compared with building from individual components.
• Improved rotor stability and lower vibration when installed and commissioned correctly.

Common applications: service centers and on-site repairs for research, semiconductor and industrial systems using TMP-3003 / TMP-3603 series molecular pumps where original radial bearing/sensor components are required for reliable operation.

Technical summary:

Before ordering or installation it is recommended to review pump diagnostics and confirm failure mode. If the radial sensor shows intermittent or erroneous outputs, or the electromagnetic bearing coil appears damaged, replacing the complete Radial Unit 1 Assy ensures matched components and avoids repeated bench rework.

Installation overview (qualified personnel recommended):

1. Power down pump and controller, follow lock-out/tag-out and hydraulic/electrical isolation procedures.
2. Work in a clean, ESD-protected environment. Ground yourself and use ESD-safe tools when handling sensors and coils.
3. Disassemble pump endplate and remove rotor according to the TMP-3003/3603 service manual.
4. Remove the old radial magnet bearing and radial sensor assembly. Inspect mating surfaces and connector pins for contamination or damage.
5. Fit the Radial Unit 1 Assy 3003 into the housing. Ensure correct orientation and full seating of the sensor and magnet assembly.
6. Reconnect electrical harnesses and verify connector locking. Replace O-rings or seals per manual if disturbed.
7. Reassemble pump, perform static checks, then follow the controller commissioning procedure to bring the rotor to levitation and verify sensor feedback and bearing currents.

Maintenance and troubleshooting tips:

• Inspect sensor cable and connector for corrosion or fretting before installation.
• Keep magnetic parts away from ferrous debris during handling to avoid contamination of the radial magnet surfaces.
• If vibration persists after replacement, verify balance, rotor integrity and axial bearing condition — radial components are one part of the dynamic system.
• Document serial numbers and installation date to track service life and warranty claims.

Ordering and compatibility notes:

This assembly is intended specifically for TMP-3003 and TMP-3603 series molecular pumps. For other Shimadzu models or for additional non-standard repair parts and assemblies, consult the full spare parts catalog or contact an authorized service supplier. You can find related maintenance and non-standard parts listed here: Shimadzu molecular pump non-standard maintenance parts.

If you require calibration, balancing or controller parameter updates after installation, many service providers offer commissioning services; see the parts catalog for service suggestions and compatible items: Shimadzu molecular pump non-standard maintenance parts.

For further technical details, replacement guidance or to order the Radial Unit 1 Assy 3003, refer to the parts list and ordering page below or contact your parts distributor. Additional related assemblies and spare items are also available: Shimadzu molecular pump non-standard maintenance parts.

Image: (no image supplied). If you need high-resolution product photos, exploded diagrams or the service manual excerpt for TMP-3003/3603, request them from the parts supplier before performing the repair.