Made-to-print precision components
Precision Sleeves Manufacturing for Demanding Applications
SleeveMFG is a precision machine shop in Dongguan, China, producing custom-machined sleeves and rotational components from your engineering drawings, 3D models, or physical samples.
From prototypes and low-volume orders to full-scale production, we manufacture sleeves to your requirements for concentricity, surface finish, dimensional tolerance, and material performance.
±0.005 mm
Grinding tolerance
Ra 0.2 μm
Surface finish capability
Ø1–500 mm
Diameter range
Production focus
Tight ID/OD fits, complex profiles, and secondary treatments
Source formats
PDF, STEP, DWG, DXF, or physical samples
Custom sleeve manufacturing
Components built around your drawing
Our production environment is optimized for precision rotational components requiring accurate bores, controlled outside diameters, complex profiles, and reliable secondary processing.
Complex features supported
Cross holes, keyways, snap-ring grooves, and internal or external threading can be incorporated into custom sleeve designs.
Shaft & wear sleeves
Engineered for rotating equipment and seal protection.
Bearing & spacer sleeves
Precision-ground components for assembly alignment.
Pump & seal sleeves
Corrosion-resistant components for fluid-handling equipment.
Guide, stepped & tubular parts
Custom bushings and profiles with shoulders, grooves, and housing-specific dimensions.
Manufacturing specifications
Designed for measurable performance
Select the process and specification that match your fit, alignment, wear, and surface requirements.
| Parameter | Capability |
|---|---|
| Diameter range | Ø1 mm – Ø500 mm |
| Length | 3 mm – 1500 mm |
| Tolerances | CNC turning: ±0.01 mm / grinding: ±0.005 mm |
| Fits | H6 / H7 / h6 / h7 standards |
| Surface finish | Down to Ra 0.2 μm |
| Concentricity / runout | Down to 0.01 mm |
Supply chain support
Manufacturing support for every sourcing scenario
From replacement parts to repeat production, our process is aligned with your technical and commercial requirements.
OEM manufacturers
Repeatable production quality for pump, motor, gearbox, and automation equipment. We follow drawing specifications, support material certifications, and manage the path from engineering samples to mass production.
MRO & repair companies
Replacement sleeves can be reverse-engineered from a physical sample or marked-up sketch. We prioritize quick turnaround for repair projects and obsolete-part replacement.
Industrial distributors
Flexible manufacturing, private labeling, and stable long-term supply. We source materials from standard carbon steels through specialized nickel alloys for inventory requirements.
Materials
Choose materials for the operating environment
We machine industrial-grade materials selected for strength, corrosion resistance, wear performance, and application-specific requirements.
Stainless steel
304, 316, 410, 420, 17-4PH, 15-5PH
Carbon & alloy steel
1018, 1045, 4140, 4340, 42CrMo
Tool & bearing steel
D2, A2, 52100, GCr15
Aluminum alloys
6061, 6082, 7075
Copper alloys
Brass, bronze, aluminum bronze
High-performance alloys
Inconel, Monel, Hastelloy
Beyond machining
Coordinate secondary operations through one supplier
Reduce multi-vendor management by coordinating heat treatment, surface finishing, and precision finishing with your sleeve order.
Heat treatment
Quenching, tempering, nitriding, induction hardening, and carburizing.
Surface finishing
Black oxide, zinc plating, nickel plating, hard chrome, electroless nickel, anodizing, passivation, and PVD/DLC coatings.
Precision finishing
Honing, centerless grinding, and polishing for demanding fit and surface requirements.
Request a quote
Send your sleeve requirements to our engineering team
Provide your engineering files along with the required material, quantity, and surface treatment specifications. Our team will review your drawings and prepare a competitive quotation.
Accepted files
PDF, STEP, DWG, or DXF
info@sleevemfg.com
Facility address