Spring Cages - Inch & Metric

Spring cages are used inside injection mold tooling to provide a stable guide environment for coil-spring-driven systems, where consistent linear motion directly affects part quality and cycle reliability.

• Automotive and appliance actuation mechanisms: Pair the cage with spring guides to keep moving components aligned under repeated opening/closing loads, reducing off-axis wear that can lead to sticking or uneven travel.
• Electronics and connector housings: In molds that require tight repeatability of spring return, the cage’s steel support helps maintain guide geometry, supporting stable operation across high-volume production.
• Packaging and consumer goods tooling: For fast-cycle tools, a robust guide support limits misalignment-driven friction, which helps extend maintenance intervals.

This Inch & Metric variant is suited because it is offered for multiple spring diameters (20–50 mm and 3/4–2 in) and guide lengths (L = 25–305 mm / 1–12 in), enabling designers to match the cage to both standardized inch and metric spring guide layouts.

This component is specified as a steel guide support intended to stabilize coil spring guidance and reduce wear caused by misalignment. While no specific alloy grade, hardness (HRC), or heat-treatment state is provided in the data, the steel construction supports durability in tooling environments where repeated spring loading and sliding contact occur.

• Wear resistance vs. toughness trade-off: In general steel guide supports prioritize dimensional stability and surface durability; selecting an appropriate hardened condition improves wear resistance but can reduce impact toughness if over-hardened.
• Manufacturing process: Typical production involves precision fabrication followed by finishing operations to achieve alignment-critical guide features and consistent assembly fit.

If your application demands a defined hardness level or specific heat treatment (e.g., nitriding or quench & temper), request the exact material/heat-treatment specification for series 250300462349 to confirm performance targets.

Correct selection is driven by matching both the spring diameter and the guide length (L) to your mold’s spring-guided mechanism envelope.

• Spring diameter (mm): choose 20, 25, 32, 40, or 50 mm.
• Spring diameter (in): choose 3/4", 1", 1-1/4", 1-1/2", or 2".
• Guide length L (mm): select from 25 ~ 305 mm.
• Guide length L (in): select from 1 ~ 12 in.

When designing the cavity/core or moving assembly, confirm the cage’s L dimension matches the available guided travel region, including any clearance needed for spring compression and assembly tolerances. Use the appropriate inch or metric sizing system to avoid unit mismatch, and verify that the chosen spring diameter aligns with the mating spring guide/support bore geometry to maintain concentric motion and minimize wear.