Precision CNC Manufacturing Since 2013
Precision Stainless Steel Spacers & Custom CNC Components
SpacerMFG is a precision machining manufacturer based in Shenzhen, China. We manufacture custom spacers, sleeves, bushings, and standoffs to your engineering drawings and material specifications.
From prototype development to repeat production runs, our team supports industrial OEMs and engineering teams with carefully controlled custom components.
2013
Focused on precision manufacturing
CNC
Turning and milling expertise
OEM
Prototype through production support
Built to your drawing
Define your OD, ID, length, material, tolerance, and finish requirements with confidence.
Engineering fit and performance
Why engineers choose custom stainless steel spacers
Stainless steel is preferred for applications requiring high corrosion resistance, structural integrity, and durability in harsh environments. Custom machining allows your team to specify the exact geometry needed for a reliable equipment assembly.
Specify the exact outer diameter for accurate positioning and fit.
Control the inner diameter for shafts, fasteners, and mating components.
Set the precise length and tolerance required by your assembly.
We machine 303, 304, and 316 stainless steel according to your material requirements, tolerance expectations, and application demands. Unlike off-the-shelf components, every part is produced from your unique specifications.
Custom component range
Manufacturing capabilities for custom geometries
Our production facility handles a wide range of custom geometries. We do not maintain a catalog of stock parts; each component is manufactured to your drawing and specifications.
| Product | Typical materials | Key parameters |
|---|---|---|
| Precision Spacers | Stainless steel, aluminum, steel, brass | Custom OD, ID, length, and tolerance |
| Spacer Sleeves | Stainless steel, aluminum, steel | Custom wall thickness and length |
| Stepped Spacers | Stainless steel, aluminum, steel | Multiple diameters and stepped profiles |
| Flanged Spacers | Stainless steel, aluminum, steel | Custom flange OD, thickness, and bore |
| Threaded Spacers | Stainless steel, aluminum, brass | Internal or external threads |
| Precision Bushings | Stainless steel, steel, brass | Custom bore, OD, and length |
| Standoffs | Stainless steel, aluminum, brass | Male-female, female-female, or custom |
Precision CNC turning
Our turning department specializes in spacers, shafts, collars, and pins where tight control of OD, ID, concentricity, and surface finish is critical.
- Geometry: Steps, grooves, chamfers, and threads.
- Production volume: Single-piece prototypes through high-volume production batches.
- Secondary operations: Drilling, tapping, and deburring integrated into the workflow.
CNC milling
When a design extends beyond simple cylindrical shapes, our milling department provides the flexibility to manufacture brackets, blocks, and custom components with complex profiles.
- Features: Pockets, slots, counterbores, and complex profiles.
- Quality focus: Dimensional accuracy across every milled feature.
- Assembly alignment: Components produced to match your equipment requirements.
Complete part readiness
Secondary processing and finishing
A component is only as good as its final surface condition. Our complete manufacturing service helps deliver parts ready for installation and supply-chain use.
Grinding
Enhanced dimensional accuracy and surface roughness control.
Passivation
Stainless steel treatment to improve corrosion resistance.
Deburring
Professional edge and burr removal for safe handling and proper seating.
Laser marking
Part number identification and traceability for OEM supply chains.
Plating and coating
Nickel, zinc, or black oxide finishes for steel components.
Application experience
Supporting high-requirement industrial teams
We work primarily with mechanical and design engineers, purchasing managers, and OEM supply chain teams across demanding applications.
Industrial automation
Precision spacers, sleeves, and mounting components for robotics and automated systems.
Medical and laboratory
High-precision stainless steel components requiring strict material adherence.
Machinery OEMs
Reliable bushings and sleeves for long-term equipment service life.
Automotive and mobility
Repeatable production of precision turned parts for Tier 1 and Tier 2 suppliers.
Drawing-led quality control
Quality and documentation built around your specification
For custom parts, the drawing is the authority. Our quality control process verifies every dimension against your provided specifications, including hole tolerance, thread pitch, and surface finish.
A clear production process
-
1
Review your files
Our engineering team reviews drawings, materials, quantities, tolerances, and finish requirements.
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2
Confirm manufacturability
We provide feedback when there are opportunities to optimize cost or lead time.
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3
Communicate production status
Clear communication helps your team keep project timelines and supply plans on track.
Request a quotation
Send your stainless steel spacer requirements
To receive a quote, send your drawings, material specifications, and required quantities. Include any specific tolerance requirements or surface finish standards in your inquiry.
Our engineering team reviews incoming files for manufacturability and provides feedback where cost or lead-time optimization may be possible.
SpacerMFG
Email: info@spacermfg.com