This product is the Shimadzu Option Parts Radial MB(1) Assembly designed specifically for the TMP-V2304 series turbomolecular (molecular) pump. The Radial MB(1) Assy is a precision electromagnetic component used to control and stabilize the rotor in the radial direction, ensuring low vibration, accurate rotor centering and reliable high-speed operation within the TMP-V2304 family.
Key functions of the Radial MB(1) Assy:
- Provides active radial magnetic force to maintain rotor centering and minimize contact with stationary components.
- Damps radial disturbances from gas loads, imbalance or transient conditions to protect the rotor and bearings.
- Interfaces with the TMP-V2304 pump control electronics to receive drive current and position feedback for closed-loop control.
- Designed for long life under high rotational speed and vacuum-compatible conditions.
Compatibility and fit:
- Direct fit for TMP-V2304 series molecular pumps (OEM option part for Shimadzu TMP-V2304).
- Manufactured to match OEM mechanical interfaces, electrical connectors and alignment features to guarantee drop-in replacement.
Construction and materials:
- Coils wound with vacuum-compatible, enamel-insulated magnet wire and impregnated for mechanical stability.
- Magnetic circuit components use high-permeability alloys selected for stable performance in the TMP operating temperature range.
- Structural parts are machined from stainless steel or vacuum-grade alloys and finished to prevent virtual leak sources.
- Insulating parts use vacuum-compatible ceramics or polymers; connectors are corrosion-resistant and keyed to prevent mis-mating.
Installation overview (professional installation recommended):
- Power down and vent the system according to the pump and system manufacturer's procedures.
- Use ESD protection and clean gloves when handling the assembly to avoid contamination.
- Remove the old radial electromagnetic assembly following the TMP-V2304 service manual; note alignment marks and cable routing.
- Fit the Radial MB(1) Assy into the housing, align dowel pins or locating surfaces, and secure with the original fasteners or OEM-specified replacements.
- Reconnect electrical connectors, ensuring correct orientation and secure latching; check harness routing to avoid rubbing when the pump is in service.
- Power up and run the pump through its acceptance checks; verify rotor centering, vibration levels and that the control electronics accept the new assembly.
Diagnostics and maintenance tips:
- Visual inspection: check coil windings, insulation, connector pins and mounting surfaces for damage or contamination.
- Electrical checks: measure coil continuity and compare to known-good values or OEM specifications; check for shorts to housing.
- Thermal behavior: excessive heating at the assembly under normal load indicates drive or control issues—do not run long-term until resolved.
- Cleaning: use lint-free cloths and isopropyl alcohol in a clean environment; avoid aggressive solvents and do not abrade coated windings or insulating parts.
- When in doubt, return the assembly to an authorized Shimadzu service center or use qualified vacuum-pump technicians to avoid collateral damage to the TMP.
Safety and handling:
- Handle as an electromechanical precision component—avoid impacts, dropping or bending.
- Keep magnets and ferrous parts away from sensitive electronics and magnetic storage devices.
- Follow ESD precautions and use proper PPE; avoid introducing oils, fingerprints or other contaminants into vacuum surfaces.
Ordering, packaging and shipping:
- Supplied as an OEM option assembly for TMP-V2304 series pumps; typically shipped in anti-static, foam-protected packaging.
- Each unit is boxed with protective insulation around delicate parts and accompanied by handling notes—special packaging for air freight is available on request.
- Lead times may vary; contact your supplier or Shimadzu distributor for current availability and OEM part numbers.
Common failure modes and troubleshooting guidance:
- Open or shorted coil windings—identified by failed continuity checks or abnormal drive currents.
- Connector or cable damage—intermittent signals or loss of communication to the pump controller.
- Mechanical misalignment—unusual vibration immediately after installation; re-check dowel alignment and fastener torque sequence.
- Electrical overheating—verify drive current limits and controller firmware settings; inspect for blocked cooling paths.
For genuine replacement parts, accessories and additional maintenance components related to Shimadzu molecular pumps, consult the manufacturer's non-standard/option parts catalog. You can view more details and request service parts on the official parts page: Shimadzu molecular pump non-standard maintenance parts. If you need related option parts or conversions, see the technical listing here: Shimadzu molecular pump non-standard maintenance parts. For ordering assistance and compatibility confirmation, contact your spare-parts supplier or visit: Shimadzu molecular pump non-standard maintenance parts. Technical documentation and service kits for TMP-V2304 and other Shimadzu models are available at: Shimadzu molecular pump non-standard maintenance parts.
Note: Replacement or service of the Radial MB(1) Assembly should be performed by trained personnel or authorized service centers to preserve warranty and ensure safe, dependable pump operation. If you require installation support, calibration or a verified spare, please reach out to an authorized distributor or the technical support team listed on the parts page.
