Custom plastic spacers manufacturer
Precision Plastic Spacers, Made to Your Drawing
Plasticpartsmfg is a Shenzhen-based manufacturer producing engineered plastic spacers for industrial equipment, robotics, medical devices, and electronics. We build to your CAD files and technical drawings, with attention to dimensions, tolerances, and material requirements.
From prototype batches for assembly testing to high-volume OEM production, choose a manufacturing route that fits your geometry, quantity, and cost targets.
- 1 piece to mass productionFlexible order quantities
- ±0.02 mm to ±0.05 mmTypical tolerance range*
- CNC or injection moldingMatched to your volume
*Achievable tolerance depends on material and manufacturing process.
Designed for your assembly
Manufacturing Capabilities for Plastic Spacers
Specify the spacer’s length, inner and outer diameters, shoulders, countersinks, threads, and non-standard cross-sections. We select the process and secondary operations to suit your part geometry and assembly requirements.
01 / CNC
Precision machining
Well suited to prototypes and low-to-medium volumes, complex geometries, tight tolerances, and non-standard internal diameters. No tooling investment is required.
02 / Molding
Injection molding
A cost-focused option for high-volume production. Initial tooling investment can reduce unit cost across ongoing production runs.
03 / Finishing
Secondary operations
Drilling, reaming, chamfering, and threading support precise fit and assembly. Polishing, deburring, color matching, and custom packaging are also available.
Spacer configurations
Common Plastic Spacer Subcategories
Select a common form or share a custom profile. Spacer designs can provide electrical insulation, controlled spacing, axial positioning, and reliable fit within an equipment assembly.
Plastic Round Spacers
General-purpose spacing for mounting and alignment.
Plastic Tube Spacers
Hollow profiles for fasteners, PCB mounting, and chassis spacing.
Plastic Shoulder Spacers
Shoulder features locate components and control axial position.
Plastic Threaded Spacers
Internal or external threads for direct mounting.
Plastic Insulating Spacers
Plastic materials help electrically isolate sensitive assemblies.
Plastic PCB Spacers
Maintain board clearance and mounting height in electronics.
Plastic Stepped Spacers
Stepped profiles support alignment and controlled seating.
Plastic Flanged Spacers
A wider bearing surface helps distribute assembly loads.
Plastic Precision Spacers
Dimension-focused parts for medical and laboratory equipment.
Custom Shaped Spacers
Non-standard cross-sections made to your drawing or CAD file.
Material & performance
Select Materials for the Operating Environment
Plastic spacers can offer electrical insulation, low weight, corrosion resistance, and consistent dimensions. The right grade depends on temperature, strength, wear, chemical exposure, and assembly needs.
PEEK
For applications requiring high temperature capability, strength, and chemical resistance.
POM (Acetal)
Dimensional stability and low friction make it suitable for precision mechanical spacers.
Nylon (PA6 / PA66)
A durable, wear-resistant choice for general industrial structural spacing.
PTFE
Offers electrical insulation and chemical resistance for specialized lab or chemical-handling equipment.
Other common materials: PC, ABS, and PP. Material availability and final properties should be confirmed against your operating requirements.
Choose the right route
CNC Machining or Injection Molding?
The best choice depends on order quantity, part geometry, and unit-cost targets. Compare the options before sending your drawing for review.
Prototype to small batch · typically 1–500 units
Adapt quickly without tooling cost
CNC machining suits early-stage prototypes, design validation, complex features, and lower-volume production. With no tooling cost, design iterations can be made directly from your CAD files.
High-volume production · typically 1,000+ units
Optimize unit cost at scale
Injection molding is often the more cost-effective choice for large production runs. It requires an initial tooling investment, which can be offset by lower unit pricing over ongoing volumes.
Built for OEM applications
Reliable Spacing Across Equipment Assemblies
Plastic spacers help control clearances and component positions while supporting lightweight, corrosion-resistant, and electrically insulating designs.
Electronics
PCB mounting, height adjustment, and electrical isolation.
Robotics
Wear-resistant spacing for arm joints and structural alignment.
Medical equipment
Material-specific components for diagnostic and laboratory devices.
Industrial automation
Precision spacing for sensors, conveyors, and motor assemblies.
Quality & technical details
Dimensional Checks From Prototype to Production
Each batch is dimensionally inspected against your drawings. We prioritize consistency across production runs so parts validated during prototyping remain compatible with future mass production.
Assembly-ready support can include deburring, finishing, and custom packaging for your internal supply chain.
| Common materials | POM (Delrin), PEEK, Nylon (PA6 / PA66), PC, ABS, PP, PTFE |
|---|---|
| Typical tolerances | ±0.02 mm to ±0.05 mm, depending on material and process |
| Production quantity | 1 piece to mass production |
| Input file formats | STEP, STP, IGES, X_T, STL, DXF, DWG, PDF |
| Finishing options | Polishing, deburring, color matching, and custom packaging |
Request a quote
Send Us Your Drawing and Production Requirements
For a technical quotation, share your CAD files—STEP or STP preferred—and technical drawings. Include your material, quantity, dimensional tolerances, and finishing or packaging requirements.
Manufacturing location: Shenzhen, China.
Help us review your spacer project
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01
Material and color requirements
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02
Quantity per order or annual volume
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03
Tolerances and surface finish needs
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04
Secondary operations or packaging