Custom stainless steel machining
Custom Stainless Steel Sleeves Made to Print
SleeveMFG manufactures precision stainless steel sleeves for OEMs, MRO repair shops, and industrial equipment manufacturers. Every component is produced to your engineering drawing or physical sample.
±0.005 mm
Precision grinding capability
Ø3–500 mm
Outside diameter range
Full traceability
Material and inspection documentation
Built for rotating equipment
Sleeves, bushings, spacers, and wear components made for functional fits.
Prototype to production
One-off replacement parts and repeat production runs supported.
Material engineering
Select the stainless steel grade for the application
Sleeve performance depends on the material grade. We machine stainless steels selected for corrosion resistance, strength, hardness, temperature stability, and wear performance.
Materials are procured from reputable mills, with certification and traceability documentation available when required by your project or international standard.
304 / 304L
Standard stainless grade for general corrosion resistance in mild environments.
316 / 316L
Higher molybdenum content for improved performance in acidic or marine environments.
17-4PH
Precipitation-hardening stainless steel for high strength and hardness with corrosion resistance.
410 / 420
Martensitic grades often chosen for high hardness after heat treatment.
Manufacturing capabilities
Precision machining for functional sleeve geometries
Our Dongguan-based facility is optimized for rotational components. CNC turning, CNC milling, and precision grinding support simple cylindrical sleeves as well as parts with shoulders, flanges, internal or external threads, keyways, and snap-ring grooves.
| Parameter | Capability |
|---|---|
| Outside Diameter | Ø3 mm – Ø500 mm |
| Inside Diameter | Ø1 mm – Ø450 mm |
| Length | 3 mm – 1500 mm |
| CNC Turning Tolerance | ±0.01 mm |
| Precision Grinding | ±0.005 mm |
| Concentricity / Runout | Down to 0.01 mm |
| Surface Finish | Down to Ra 0.2 μm |
Fit and tolerance control
Protect the relationship between ID, OD, and assembly
Sleeves commonly function as bearing surfaces or sealing interfaces. Our engineering and inspection process focuses on the dimensional relationships that determine fit, rotation, sealing, and service life.
Tight fit control
H6/H7 or h6/h7 fits are produced to your assembly drawing requirements.
Concentricity and runout
OD and ID grinding helps minimize radial runout for high-speed rotating equipment, reducing vibration and premature wear.
Thin-wall machining
Specialized work-holding techniques minimize distortion so thin-walled sleeves remain round and within tolerance after release.
Application coverage
Sleeves for demanding industrial systems
Pumps and fluid handling
Pump shaft sleeves, seal sleeves, and wear sleeves for abrasive fluids and high-pressure sealing environments.
Mechanical seals
Precision spacers and sleeves that maintain the integrity of mechanical seal assemblies.
Motors and power transmission
Bearing sleeves and coupling components for gearboxes and motor shafts.
Mining, heavy machinery, marine, and offshore
Hardened, high-load components and corrosion-resistant shaft parts for severe operating environments.
Beyond machining
Ready-to-install finishing and documentation
SleeveMFG coordinates secondary operations so your sleeve arrives fit-for-service and aligned with the technical requirements of your assembly.
Heat treatment
Quenching, tempering, and nitriding to increase surface hardness and wear resistance.
Surface coating
Electroless nickel, hard chrome, or PVD/DLC coatings for improved tribological properties.
Final finishing
Honing, polishing, and passivation for specified roughness and corrosion resistance.
Quality assurance
Inspection aligned with your drawing
Our quality control department verifies every batch against the provided engineering drawings. Inspection reports document dimensional results, geometric tolerances, and surface finishes before parts leave the facility.
Inspection equipment includes
- ●Coordinate measuring machines
- ●Profile projectors
- ●Surface roughness testers
- ●Calibrated bore and OD micrometers
Request a quotation
Send your sleeve requirements to our engineering team
SleeveMFG supports prototype development and full-scale production. Share your RFQ package for a formal quote with lead times and shipping estimates.
Please include
- 1. Engineering drawings: PDF, STEP, STP, IGES, DXF, or DWG files.
- 2. Material specifications: Grade and required heat treatment.
- 3. Quantity: Prototype or production-run requirements.
- 4. Special requirements: Surface finish, tolerances, or inspection reports.
Send RFQ packages to info@sleevemfg.com.
Start your custom sleeve inquiry
Provide your drawings, material grade, quantity, and inspection requirements.
SleeveMFG
Custom Manufactured Sleeves. Made to Your Drawing.