GRHZ Oil-Free Plain Guide Rails Copper Alloy

Oil-free plain guide rails are used inside injection mold tooling and automation-driven mold systems where clean operation and repeatable alignment matter without periodic lubrication. This copper alloy GRHZ configuration is well-suited to automotive connector and sensor housings that cycle frequently and benefit from stable dry motion to reduce contamination risk on the mold face.

In multi-cavity mold assemblies, these rails help guide moving plates/cores with a consistent sliding interface, supporting heat-ready tool layouts that may see elevated ambient temperatures. The no groove heel / single-heel layout simplifies mounting and alignment during guide-rail and slide-plate stack-up.

• Dry-running slide-plate mechanisms: oil-free construction supports clean-room-like requirements.
• Heat-exposed motion systems: designed for operation up to 120°C.
• General industrial guide rail applications: GRHZ type rail configuration fits standard use patterns.

This variant uses a copper alloy material selected to provide controlled friction for dry (oil-free) sliding and reliable wear behavior under continuous motion. Copper-alloy guide components are commonly chosen when lubrication must be avoided because they can maintain stable motion performance while limiting the need for oil management in the tooling environment.

Heat treatment details are not specified in the provided data; therefore, selection should be verified against the supplier’s technical sheet for the exact hardness and heat-treatment state (e.g., pre-hardened or quenched/tempered). The application guidance indicates heat-ready operation up to 120°C, which suggests suitability for elevated-temperature motion systems typical of certain slide-plate assemblies.

• Wear resistance vs. toughness trade-off: copper alloys generally prioritize stable dry friction and wear behavior; verify toughness requirements for shock-prone cycles.
• Material comparison (selection basis): if switching away from copper alloy to steel, reassess lubrication needs and dry sliding wear performance.

To select the correct rail, match the required rail thickness T, rail width W, and rail length L to the guide-rail/slide-plate interface geometry in your mold design. Available sizes are:

• T (mm): 10, 15, 20
• W (mm): 12.5, 15
• L (mm): 50, 60, 70, 80, 90, 100

Use rail length L to cover the full sliding stroke and support stable guidance throughout the cycle; choose the nearest length that satisfies the required travel while accounting for end clearances. Select T and W based on the mounting pocket depth and the slide-plate/undercut plate contact area so the single-heel, no groove layout can seat properly.

Tolerance and fit: the provided data does not list specific tolerances, so confirm the installation clearances and alignment requirements from your drawing set to ensure smooth dry motion without binding.