QX Type Heavy Load Shore A90 Urethane Pads With Hole

QX heavy-load urethane pads with a through hole are used in injection mold tooling wherever controlled compression and stable positioning are needed. The rectangular hourglass geometry helps maintain consistent contact area when the press cycle induces high forces, reducing the risk of slip or uneven loading.

• Automotive connector and bracket molds: Use these pads behind ejector-actuation plates or in backing supports to absorb shock and hold a repeatable compression setting across cycles. Shore A90 stiffness supports load-bearing while still allowing controlled deformation.
• Appliance and industrial housing molds: In long-cavity or large-part tools, the pad’s up-to-30% maximum elongation helps maintain steady compressive behavior under variable deflection from parting loads.
• Medical device housings and fixtures: The hole simplifies fast alignment during assembly, supporting secure positioning in fixtures that require repeatability during clamping and demolding.

This variant is suited to heavy-load setups because it combines QX configuration, hourglass stability, and A90 urethane behavior for reliable compression cycling.

This product uses a Formathane-style urethane compound designed for controlled elastic deformation under repeated molding cycles. The specified Shore A90 grade provides a stiffness level that balances wear resistance and load support against the need for moderate compliance.

• Hardness / performance: Shore A90 targets reliable compression with controlled elongation behavior.
• Deformation capability: Maximum elongation up to 30% helps sustain compression cycle consistency when tooling deflects.
• Heat treatment: Urethane pads are typically manufactured as polymer cast/formed components; they are not hardened like steel. Instead, performance depends on the cured urethane structure rather than quench-and-temper or nitriding.

Compared with softer urethane options (lower Shore A), A90 generally improves load capacity and dimensional stability, while higher elongation demands may favor careful selection to prevent overstretching beyond the 30% limit.

Select the urethane pad based on the required compression load, the available mounting envelope, and the alignment method.

• Match load capacity: Choose the maximum load rating from 18633, 25497, 49033, or 73550 N to cover the highest expected tooling force at the compression interface.
• Match length (L): Available lengths are 62, 82, 92, 103, 123, and 143 mm. Ensure the pad length fits the backing area behind the compression zone.
• Match width (A): Width options are 60, 70, 95, and 120 mm. Pick the width that provides stable contact for the hourglass geometry under load.

The through hole supports secure positioning during assembly; align the pad so the hole pattern corresponds to your fixture/bolt location. The dimensions listed above are configurable only to these offered sizes; use the closest available L and A that preserve the required contact area and avoid over-compression beyond the specified deformation capability (up to 30%).