Custom Mechanical Seal Sleeves
Precision machined to your specifications for industrial pumps, mixers, and rotating equipment.
SleeveMFG manufactures mechanical seal sleeves directly from your engineering drawings or samples, delivering the precise fit, surface finish, and material requirements needed for reliable seal performance and shaft protection.
Ø3–500 mm
Typical outside diameter range
±0.005 mm
Precision grinding tolerance
Prototype to mass production
Flexible production support
Engineered for demanding seal applications
Mechanical seal sleeves operate in challenging environments where fit, geometry, and surface condition directly affect equipment reliability.
Whether you are an OEM building new equipment or an MRO facility repairing existing pumps, our components are machined to help prevent leakage, vibration, wear, and premature seal failure.
Tight Tolerance Control
Precise bore-to-OD fits, including H6/H7 requirements, support proper installation and alignment.
Controlled Surface Finish
Surface finishes down to Ra 0.2 μm help seal faces and O-rings perform as designed.
Dimensional Accuracy
Controlled concentricity and runout minimize vibration and reduce component wear.
Technical capabilities
CNC turning, OD/ID grinding, and secondary finishing processes are combined to produce sleeves that meet your exact drawing and performance requirements.
| Parameter | Typical Capability |
|---|---|
| Outside Diameter | Ø3 mm – Ø500 mm |
| Precision Grinding Tolerance | ±0.005 mm |
| Concentricity | Down to 0.01 mm |
| Surface Finish | Down to Ra 0.2 μm |
| Wall Thickness | Minimum 0.5 mm |
| Production Volume | Prototype to mass production |
Materials and hardening options
Select metallurgy and treatment options for corrosive fluids, high temperatures, abrasive slurries, and demanding wear conditions.
Available materials
- Stainless Steel: 304, 316, 316L, 17-4PH, 410, 420
- Corrosion-Resistant Alloys: Inconel, Monel, Hastelloy
- Hardened Steels: 4140, 4340, Bearing Steel (GCr15)
Secondary treatments
- Quenching, tempering, and induction hardening
- Hard chrome plating and electroless nickel plating (ENP)
- PVD/DLC coatings and nitriding
Why partner with SleeveMFG?
We are not a catalog supplier. We are a custom manufacturing partner that understands the technical nuances of rotating equipment and the challenges of sourcing replacements for obsolete or custom machinery.
Made-to-print and reverse engineering
We work from PDF, STEP, or DXF files. Worn samples can also be reverse-engineered for an exact replacement.
Consistent quality verification
CMM equipment, profile projectors, and precision gauges help verify every sleeve against your drawing before shipment.
Flexible production support
From single-piece urgent repairs to medium and large production runs for OEM assembly lines.
Dongguan manufacturing access
Our Dongguan facility provides access to a comprehensive supply chain, with material procurement, machining, heat treatment, and finishing managed under one roof.
Ra μm surface finish capability
A controlled finish supports dependable interaction between seal faces, O-rings, and the sleeve surface in demanding industrial applications.
Discuss Your SpecificationSend your sleeve requirements
Send your engineering drawings or part specifications to info@sleevemfg.com for a prompt review. Our engineering team will evaluate your requirements and provide a formal quotation, including lead times and shipping options.
SleeveMFG
Manufacturing high-precision mechanical seal sleeves for global industrial applications.