Space Saving Static O-Rings for Mold Interior

This space-saving static O-ring solution is used inside injection mold tool interiors where hydraulic lines, pneumatic passages, or auxiliary cooling/actuation circuits must be sealed within a restricted envelope.

Scenario 1: Automotive connector and bracket molds – These tools often package manifold fittings, vacuum/air channels, and sensor interfaces close to moving parts. The static design supports leak prevention for fluids or gas without requiring reciprocating motion, helping maintain consistent process conditions.

Scenario 2: Medical device housing molds – Tight assemblies around precision inserts and clean-fluid pathways benefit from stable sealing integrity. This variant is suited to limited-space installations, reducing the need for bulky glands while maintaining a reliable static seal.

Scenario 3: General industrial molds with pneumatic/hydraulic interfaces – When connectors are mounted in the mold interior, a static seal helps prevent pressure loss and contamination from minor leakage.

• Use for static sealing where no sliding movement occurs
• Select by inner diameter and wire/thickness to fit the limited cavity space

The provided data specifies the sealing form factor (static type, space-saving) and dimension sets (JIS numbers), but it does not list the elastomer grade or any heat-treatment condition. Therefore, material-specific heat treatment, hardness (HRC), and wear/toughness trade-offs cannot be stated from the supplied information.

What can be confirmed is that the product is manufactured for static O-ring sealing applications across a broad internal diameter range (2.5 ~ 119.4 mm) and multiple wire/thickness options (1.5 ~ 3.5 mm among the listed sizes). Material selection for O-rings is typically tied to fluid compatibility and temperature requirements; when you request a material or hardness datasheet, ensure it matches your hydraulic/pneumatic media and expected mold-interior temperatures.

• Heat treatment: Not specified in the input data (elastomer O-rings are commonly not “quenched & tempered” like steels)
• Hardness/wear: Not provided; confirm elastomer hardness and compression set resistance for your duty cycle

Correct selection is primarily dimensional: match the O-ring’s inner diameter (φ) and wire dia./thickness to the static gland (seal recess) geometry in the mold interior.

• Inner diameter range: φ 2.5 ~ 119.4 mm
• Wire/thickness options (mm): 1.5, 1.9, 2.0, 2.4, 3.1, 3.5

1) Measure or specify the gland’s seal pocket such that the O-ring inner diameter corresponds to the required bore/port interface. 2) Choose the wire/thickness that provides the intended compression for a static type seal—too thin may under-fill the recess, while too thick may prevent proper assembly in limited space.

Use the listed JIS No. set (e.g., G25, G30, … up to G95 per the provided list) as the mapping reference when converting from design drawings to the exact catalog size. Tolerance and fit values are not included in the provided data, so confirm compression allowance and groove tolerances against your mold design standards.