Polyetherimide (PEI) Springs - High Performance Polymer-Plastic Fastener Components

HPP PEI®

Polyetherimide (PEI) Compression Springs

Manufactured to order.

SKU: PEICS10208

£4.69 - £7.22 GBP / each

Volume Discounts Available:

1 pc £7.22

20 pcs £6.86

50 pcs £6.50

100 pcs £5.78

250 pcs £5.42

500 pcs £5.05

1000 pcs £4.69

2000+ pcs Contact us

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Polyetherimide (PEI) Compression Springs, available in sizes ranging from Inner Diameter (ID) of 1mm to 20.5mm, Outer Diameter (OD) of 2mm to 25mm, and Free Lengths of 8mm to 50mm, are made from Polyetherimide, a high-performance thermoplastic known for its exceptional mechanical properties, thermal stability, and chemical resistance. PEI offers high tensile and compressive strength, excellent dimensional stability, and outstanding resistance to a wide range of chemicals. These properties make PEI Compression Springs ideal for demanding applications that require reliable performance under various loads and environmental conditions.

Sizes (see full table below) :

Inner Diameter (mm) - 1 to 20.5mm

Outer Diameter (mm) - 2 to 25mm

Free Length (mm) - 8 to 50mm

Advantages of Using Polyetherimide (PEI) Compression Springs:

High Mechanical Strength: PEI provides excellent tensile and compressive strength, ensuring robust performance under heavy loads and high-stress conditions.

Thermal Stability: PEI maintains its mechanical properties over a wide temperature range, making these springs suitable for both high-temperature and cryogenic environments.

Chemical Resistance: PEI is resistant to a broad spectrum of chemicals, including acids, bases, and solvents, ensuring durability in corrosive environments.

Dimensional Stability: The material offers excellent dimensional stability, ensuring the springs maintain their shape and performance over time, even in precise applications.

Low Creep and Long-Term Performance: PEI exhibits low creep, meaning it maintains its mechanical properties and shape over long periods under continuous stress.

Flame Retardant: PEI has inherent flame retardant properties, making it suitable for applications requiring fire resistance.

Electrical Insulation: PEI provides excellent electrical insulating properties, making these springs ideal for electronic and electrical applications.

Specific Applications of Polyetherimide (PEI) Compression Springs:

Aerospace:

Used in aircraft and spacecraft systems where high-strength, lightweight, and thermally stable components are critical.

Suitable for environments with extreme temperatures and exposure to various chemicals.

Automotive Industry:

Applied in automotive components that require high mechanical strength, thermal stability, and chemical resistance, such as in engine and transmission systems.

Medical Devices:

Utilised in medical instruments and diagnostic equipment where high precision, biocompatibility, and resistance to sterilisation processes are essential.

Industrial Machinery:

Employed in machinery and equipment that require robust components capable of withstanding high loads and harsh chemical environments.

Electronics and Electrical Equipment:

Used in the assembly of electronic devices and enclosures, where the springs' electrical insulation properties and thermal stability are beneficial.

Ideal for securing and positioning delicate components.

Chemical Processing:

Applied in securing components in chemical processing plants, where resistance to aggressive chemicals and high temperatures is crucial.

Ideal for use in pumps, valves, and reactors.

Telecommunications:

Utilised in devices and systems where flame retardancy, electrical insulation, and long-term performance are critical.

Polyetherimide (PEI) Compression Springs, with Inner Diameters from 1mm to 20.5mm, Outer Diameters from 2mm to 25mm, and Free Lengths from 8mm to 50mm, offer a high-performance solution made from Polyetherimide. These springs are known for their high mechanical strength, thermal stability, chemical resistance, and excellent dimensional stability. Ideal for a variety of demanding applications across aerospace, automotive, medical devices, industrial machinery, electronics, chemical processing, and telecommunications industries, PEI compression springs provide reliable and long-lasting performance in critical environments.

Polyetherimide (PEI) Compression Springs

Product Drawing

Inner Diameter (mm)	Outside Diameter (mm)	Free Length (mm)	Solid Height (mm)	Spring Rate (mm)
1	2	8	5	0.57
2.2	3	20	10.70	0.07
4	8	20	12.50	1.59
4	8	30	18	0.80
4	8	40	24	0.56
4	8	50	30	0.56
5	9	20	12	0.89
5	9	30	18	0.67
5	9	40	24	0.48
5	9	50	30	0.47
6	10	30	18	0.97
6	10	40	24	0.73
6	10	50	31	0.87
6	12	25	14.5	4.10
7.5	10	17.2	6.5	0.53
8	12	20	12	0.48
8	12	30	18	0.35
8	12	40	24	0.35
8	12	50	30	1.05
20.5	25	36	16	0.15

Dimension Table

Dimensions for Polyetherimide (PEI) Compression Springs in all available sizes are shown according to the product drawing above.

Key Polyethylenimine (PEI/Ultem) Properties

Custom Manufacturing

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PEI/Ultem Key Properties

Thermal Performance:
PEI's outstanding thermal stability sets it apart. It can withstand continuous use at elevated temperatures, typically up to 170°C (340°F), making it ideal for applications demanding heat resistance. Whether in automotive components or aerospace interiors, count on PEI to maintain its integrity even in extreme thermal environments.

Exceptional Mechanical Strength:
PEI boasts impressive mechanical properties. Its high tensile strength and rigidity make it an excellent choice for structural components where strength and stability are paramount. This material resists deformation under heavy loads, ensuring longevity in demanding applications such as medical devices and electronics.
Chemical Resistance and Electrical Insulation:
PEI offers remarkable chemical resistance, standing up to a wide range of chemicals, acids, and solvents. Additionally, it excels as an electrical insulator, making it valuable in electrical and electronic components. Its dielectric properties make it a preferred material for insulating parts in the semiconductor and electrical industries.

Dimensional Stability and Precision:
PEI's exceptional dimensional stability ensures that components retain their shape and size, even in fluctuating environments. This property is crucial for maintaining tight tolerances in precision engineering applications, including aerospace manufacturing and automotive engineering.
Biocompatible and FDA Compliant:
PEI is biocompatible and FDA compliant, making it suitable for medical and healthcare applications. From surgical instruments to sterilizable components, PEI's biocompatibility and resistance to autoclave sterilization ensure safety and reliability.

Versatile and Easy to Process:
PEI's versatility extends to ease of processing. It can be injection molded, machined, and 3D printed, offering flexibility in design and manufacturing. This adaptability simplifies the production of custom components across a wide range of industries.

ISO 9001 Certified

Certified through Quality Veritas. High Performance Polymer conforms to the ISO9001 quality management system. Certificates available on request.

Certificate Of Conformity

Product certificate of conformity available on request, confirming the product manufacturing standard and material.

Material Certificates

Full material traceability and certification confirming the material data and raw material batch number, which can be traced back to the manufacturer.

Highly Competitive Prices

We offer price matching against all UK distrubutors. All of our products are manufactured to the highest standards and exhibit exceptional characteristics.

Why Choose High Performance Polymer?

50,000+ Fasteners In stock
No long lead times. We have a large range of PEEK fasteners available for express delivery (Dispatched the same day if ordered before 3PM Monday-Thursday).

Fasteners not available for express delivery will display the expected delivery date above the 'add to cart' button.

Manufacturer Direct Distributor
We are a manufacturer direct distributor, this allows us to ensure highly competitive prices and keep our shelves stocked. All of our products are manufactured to the highest standards and exhibit exceptional characteristics.

ISO9001 Certified
Certified through Quality Veritas. High Performance Polymer conforms to the ISO9001 quality management system. Certificates available on request.
Material Certificates
We provide full material traceability and can provide certification confirming material data and batch number, which can be traced back to the manufacturer.

Certificate Of Conformity
We also provide a certificate of conformity on request, confirming the product manufacturing standard and material.