Product Overview
This listing describes the Shimadzu G rotor coating — an OEM-grade replacement/coated rotor element used as an original parts repair for TMP-1303MTG (TMP-1303 and TMP-1503 series) molecular turbomolecular pumps. The part is supplied with the factory-applied protective coating that restores the rotor’s surface properties to specification, providing consistent high-vacuum performance, reduced maintenance intervals and reliable long-term operation in research and industrial vacuum systems.
Compatibility
- Direct fit for Shimadzu TMP‑1303 series molecular pumps
- Direct fit for Shimadzu TMP‑1503 series molecular pumps
- Intended as an OEM repair/upgrade component for service shops and end users restoring original pump performance
Key Features & Benefits
- Factory-grade coating to resist wear, erosion and chemical attack from process gases.
- Low outgassing finish appropriate for high and ultra-high vacuum service.
- Maintains precise aerodynamic geometry required by the TMP-1303/1503 rotor stage to ensure rated pumping speed and compression ratio.
- Balanced to OEM dynamic tolerances to minimize vibration and bearing loads after installation.
- Compatible with standard rotor bearings, seals and housings used on the TMP‑1303/1503 series.
Coating Purpose and Material Characteristics
The G rotor coating is engineered to deliver low friction, high hardness and chemical inertness while keeping surface roughness and mass within the tight tolerances required for turbomolecular pump rotors. The coating reduces adsorption of condensable vapors, improves resistance to particle generation, and helps preserve aerodynamic blade profiles under typical process exposures.
Installation & Handling Notes
- Handle the rotor only with clean lint‑free gloves; avoid contact with bare hands to prevent contamination.
- Inspect for foreign particles and packaging debris before assembly. Use filtered dry nitrogen or cleanroom air to blow off particulates.
- Install following Shimadzu service manuals for shaft tolerances, thrust clearances and bearing preload; improper assembly can lead to imbalance or premature bearing wear.
- When replacing a rotor in a repaired pump, verify rotor balance and runout per service procedures before first start.
Maintenance & Inspection Guidelines
- Periodic visual inspection for coating damage or erosion after exposure to corrosive process gases.
- Monitor vibration and temperature trends; an increase may indicate imbalance or coating degradation.
- If a rotor is contaminated by oil or heavy hydrocarbons, follow approved solvent cleaning procedures compatible with the coating and pump bearings.
Troubleshooting Tips
- Unexpected vibration after rotor replacement: check axial and radial clearances, bearing preload and wheel runout.
- Degraded vacuum performance: confirm rotor seating, inlet/outlet clearances and that the coating surface is free of particulate or film buildup.
- Excessive particle counts: inspect for coating flaking, damaged blades or foreign object intrusion during service.
Quality & Traceability
Each rotor is produced and coated under controlled conditions and inspected to meet dimensional and dynamic balance criteria compatible with Shimadzu specifications for TMP‑1303/1503 series pumps. Parts are serialized and shipped with basic inspection documentation on request for repair shop traceability.
Ordering, Packaging & Support
- Supplied as a single rotor assembly ready for installation; contact your service provider for exchange options or rebuild services.
- Packaged to prevent mechanical damage and contamination during transit.
- Technical guidance available for installation and balancing procedures — contact your pump service representative for detailed manuals and torque specifications.
For OEM repair parts and related maintenance components, see our product pages: Shimadzu molecular pump non-standard maintenance parts. Additional repair components and support services are listed here: Shimadzu molecular pump non-standard maintenance parts. For spare rotors, coatings and service kits specifically for TMP‑1303/1503 series, consult: Shimadzu molecular pump non-standard maintenance parts. To arrange OEM-quality repair or request inspection documentation, visit: Shimadzu molecular pump non-standard maintenance parts.
