GR15Z Copper Alloy Heel Guide Rails - Oil-Free, No Groove

This oil-free heel guide rail is used in injection mold tooling where sliding guide surfaces must stay clean and stable over repeated cycles. Its no groove heel geometry helps maintain consistent rail contact, reducing the risk of localized wear that can appear when heel profiles collect debris.

• Automotive and industrial connector molds: Suitable for slide/guide assemblies that require smooth motion for lifters and undercut controls, especially in production runs designed for low-maintenance housekeeping.
• Appliance and electronics housings: Helps stabilize parting-line and undercut slide motion when dry operation is preferred to avoid oil contamination on cosmetic surfaces or film-gated areas.
• Packaging and automation fixtures: The oil-free design supports clean motion in indexing or automated molding cells where stray lubricant is undesirable.

The GR15Z copper alloy construction is chosen for dependable wear behavior under oil-free guidance, supporting consistent heel height function for reliable cycling.

The rail body is made from a copper alloy specified as GR15Z, selected to support dry, oil-free sliding performance in guide systems. Copper-alloy guide components are commonly used to balance wear resistance with acceptable toughness for frequent sliding contact.

Heat treatment and hardness values (e.g., HRC) are not provided in the available specifications, so material state should be confirmed with the as-supplied GR15Z datasheet for your sourcing batch. If you replace or compare against steel guide rails, note that hardened tool steels typically deliver higher hardness but may require lubrication depending on the contact regime; copper alloys often prioritize stable dry motion and predictable wear.

• Property focus: dry sliding stability and wear behavior in oil-free guide rails
• Trade-off: generally lower hardness than hardened steels, but improved tolerance to dry contact conditions

To select the correct heel guide rail, match the required rail width (W) and rail length (L) to your mold slide/undercut plate design. Available rail widths are 23 mm and 28 mm; select the width that matches the guide support surface in your slide plate or heel support block.

Available lengths are L = 80 ~ 220 mm. Choose a length that spans the active guidance zone of the slide, allowing adequate contact along the heel region while avoiding overhang that can increase deflection or binding.

• Step 1: Verify W compatibility with your guide seat dimensions (23 or 28 mm).
• Step 2: Select L within 80–220 mm to cover the full travel contact area.
• Step 3: Consider fit and tolerance: confirm clearance between the rail and mating groove/seat (if your assembly has a counterpart), and ensure the no groove heel profile is compatible with your mating geometry to maintain steady contact.

Width and length are configurable only within the provided ranges; other geometry (including the no groove heel) is fixed to this rail variant.