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PPC PEI®

Polyetherimide (PEI) Compression Springs

SKU: PEICS10208
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$9.60 inc. VAT

Polyetherimide (PEI) Compression Springs are lightweight and useful for applications requiring high strength, thermal stability, and long-term dimensional accuracy. These springs can achieve this in elevated temperatures.

Engineered for repeated compression cycles, PEI springs deliver dependable load retention, low creep, and outstanding dimensional stability. Their inherent flame resistance, low smoke generation, and electrical insulation properties make them an ideal choice for aerospace, electronics, semiconductor, and industrial applications where conventional metal springs may be unsuitable due to weight, corrosion, or electrical conductivity requirements.

Key Features

  • Manufactured from high-performance Polyetherimide (PEI)
  • Designed for reliable compression and load retention
  • Excellent mechanical strength and rigidity
  • Continuous service temperature up to 339.8°F
  • Outstanding dimensional stability
  • Inherently flame-retardant with low smoke emission
  • Good chemical resistance
  • Electrically insulating and non-conductive
  • Lightweight, corrosion-resistant, and non-magnetic
  • Suitable for demanding industrial and electronic applications

Available in various metric dimensions. 
  • Type Springs
  • SKU PEICS10208
  • Material Polyetherimide (PEI)
  • Color
    • Translucent
    • Beige
  • Measurement System Metric

Material: PEI (Polyethylenimine) - Ultem

Max Temperature: 340°F

Flame Resistance: UL94 V-0

Tensile Strength: 110MPa

Return components within 90 days for a full refund. Please see our returns terms and conditions for further information.
Inner Diameter (mm) Outside Diameter (mm) Free Length (mm) Compressed Length (mm) Spring Rate (N/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

PEI (Polyethylenimine) - Ultem

Key Properties & Applications
Properties Applications

- High Continuous Use Service Temperature of 340ºF
- High Tensile Strength of 110MPa
- Excellent Creep Resistance
- Low Moisture Absorption

- Aerospace
- Medical Equipment
- Telecommunications Equipment
- Laboratory Instruments

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