PPS Flat Washer
PPS flat washer is a high-performance engineering plastic spacer and load-distribution component designed for industrial fastening systems requiring excellent heat resistance, chemical stability, and electrical insulation. The PPS flat washer is manufactured from polyphenylene sulfide (PPS), a high-performance thermoplastic widely used in automotive, electrical, and industrial equipment applications.
The PPS flat washer is used to distribute load, reduce surface damage, and provide insulation between fasteners and mating surfaces. Compared with metal washers, it eliminates corrosion risks, electrical conductivity, and weight issues, making it ideal for advanced engineering environments.
Product Overview
The PPS flat washer is engineered for precision fastening systems where stability, insulation, and chemical resistance are critical. It acts as a protective interface between bolts, screws, and assembled components, ensuring uniform load distribution and reducing stress concentration.
This PPS flat washer performs reliably in high-temperature and chemically aggressive environments. Unlike metal washers, it does not rust, deform easily under chemical exposure, or conduct electricity, ensuring long-term performance in sensitive applications.
As a specialized industrial fastener accessory, it is widely used in OEM manufacturing and precision equipment where reliability and material stability are essential.
Product Specifications
| Item | Description |
|---|---|
| Product Name | PPS Flat Washer |
| Material | PPS (Polyphenylene Sulfide) |
| Washer Type | Flat Washer |
| Shape | Round |
| Inner Diameter Range | M2–M12 |
| Outer Diameter Range | Customizable |
| Thickness Range | 0.2mm–3.0mm |
| Color | Black / Natural |
| Density | ~1.35 g/cm³ |
| Operating Temperature | -40°C to 200°C |
| Electrical Properties | Good insulation |
| Chemical Resistance | Excellent resistance to fuels, acids, oils |
| Packaging | Anti-static bag / carton / OEM packaging |
| Customization | Size, thickness, color available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | ~80–110 MPa |
| Compressive Strength | Good for load distribution applications |
| Hardness | Shore D 85–90 |
| Continuous Service Temperature | Up to 200°C |
| Melting Point | ~280–285°C |
| Dielectric Strength | Good electrical insulation |
| Water Absorption | Very low |
| Chemical Resistance | Excellent resistance to fuels, solvents, acids |
Materials and Manufacturing Process
The PPS flat washer is manufactured using precision polymer processing techniques to ensure consistent thickness and dimensional accuracy.
- Raw material selection: High-quality PPS resin (reinforced or unreinforced)
- Sheet forming or injection molding: Creation of washer blanks
- Precision stamping / CNC machining: Inner and outer diameter forming
- Annealing treatment: Improves dimensional stability and reduces internal stress
- Surface finishing: Optional polishing for precision applications
- Inspection: Dimensional and thickness testing
- Cleaning: Contamination-free processing for industrial use
- Packaging: Anti-static and moisture-protected packaging
Each PPS flat washer is produced under strict quality control standards to ensure stable industrial performance.
Applications of the Product
The PPS flat washer is widely used across multiple industrial sectors:
- Automotive industry: Engine compartments and electronic modules
- Electrical systems: High-temperature insulating assemblies
- Electronics industry: PCB mounting and enclosure systems
- Industrial equipment: Chemical-resistant machinery assemblies
- Aerospace applications: Lightweight non-metallic structures
- Pump and valve systems: Corrosion-resistant connections
- Household appliances: Heat-resistant internal structures
- Precision instruments: Assembly and protection systems
Its insulation and chemical resistance make it suitable for demanding engineering environments.
Why Choose This Product
- Excellent heat resistance up to 200°C
- Superior chemical resistance against fuels and solvents
- Effective load distribution and surface protection
- High rigidity and dimensional stability
- Excellent electrical insulation performance
- Non-corrosive and non-metallic material
- Lightweight structure reduces system weight
- Suitable for OEM mass production
- Cost-effective engineering plastic solution
The PPS flat washer provides reliable support and insulation for modern industrial fastening systems.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and engineering plastic components.
- Advanced precision molding and machining capability
- OEM/ODM customization support
- Stable mass production for global supply
- Strict quality inspection system
- Global export experience
- Engineering application support
Flybear supports OEM manufacturers, distributors, and industrial engineering companies with reliable fastening solutions.
Quality Inspection and Control
Quality assurance is strictly implemented throughout production:
- Raw material performance testing
- Dimensional accuracy inspection
- Thickness and flatness measurement
- Tensile and compressive strength testing
- Thermal resistance verification
- Chemical resistance evaluation
- Surface quality control
- Packaging integrity inspection
All processes follow ISO-based quality management standards to ensure consistent performance.
Selection Guide
When selecting a PPS flat washer, consider:
- Inner diameter matching fastener size
- Required thickness for load distribution
- Operating temperature conditions
- Chemical exposure environment
- Electrical insulation requirements
- Assembly precision needs
Proper selection ensures long-term stability and optimal performance.
FAQ
1. What is a PPS flat washer used for?
It is used for load distribution, insulation, and surface protection in fastening systems.
2. Can PPS washers replace metal washers?
Yes, especially in environments requiring insulation and corrosion resistance.
3. What is the temperature resistance of PPS?
Typically up to 200°C for continuous use.
4. Is PPS resistant to chemicals?
Yes, it has excellent resistance to fuels, oils, and acids.
5. Can custom sizes be produced?
Yes, Flybear supports full customization.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.
