JIS Standard Steel Center Rails - Heel No Groove

These center rails are used in injection mold tooling and industrial fixturing where stable linear motion depends on consistent guidance at the rail heel. The heel no groove geometry helps maintain clean contact surfaces, reducing interference during assembly and improving alignment retention over repeated cycles.

Common scenarios include:

• Machine tool and mold base slide assemblies: selectable rail thicknesses (T 10–30 / 10–40 / 15–50 mm) support different carrier stiffness requirements.
• Fixture and jig guidance systems: mounting-hole options (2/3/4 holes) and pitch variability (A, B, C, D ranges) enable practical retrofit to existing carriers.
• High-cycle production environments: rails made from SKS3 or HPM2T are suited to wear-prone guidance interfaces where smooth movement is required with minimal surface damage.

The configurable construction and two steel options make this variant adaptable to diverse linear-motion layouts while preserving the non-grooved heel for simplified installation and stable guidance.

The rails are supplied in either HPM2T or SKS3 steel, selected for wear resistance in guidance applications. Both are hardened, guidance-grade steels commonly used to balance hardness with dimensional stability under sliding contact.

HPM2T is typically chosen when higher wear resistance and surface durability are priorities. SKS3 is often selected for strong wear performance with good toughness for service conditions involving vibration and intermittent loading. Exact hardness and heat-treatment details are not specified in the provided data; however, these steels are generally supplied in a hardened state suited for rails.

• Wear resistance: optimized for sliding interfaces to help limit heel-edge damage.
• Toughness trade-off: higher hardness improves wear resistance, but can reduce toughness; material selection should match the expected load severity.
• Manufacturing process: rails are manufactured to tight guidance dimensions and then heat-treated to achieve the appropriate hardness for long-duty service.

Select rail dimensions based on the guiding surface envelope in your mold base, slide plate, or fixture carrier. This product supports the following configuration ranges: T (rail thickness) = 10–30 mm / 10–40 mm / 15–50 mm, W (rail width) = 12 / 15 / 20 mm, and L (rail length) = 40–100 mm / 40–150 mm.

To match mounting layout, choose the number of mounting holes (2, 3, or 4) and then align bolt-hole pitch dimensions to your carrier:

• A (bolt pitch) = 6–94 mm / 7.5–142.5 mm
• B = 16–94 mm / 20.5–142.5 mm
• C = 26–94 mm / 33.5–142.5 mm
• D = 36–94 mm / 46.5–142.5 mm

Ensure the selected L and hole pitch leave adequate edge distance on the carrier. Since tolerance/fit values are not provided here, confirm your carrier machining tolerances during layout to prevent misalignment during assembly, especially at the heel no groove interface.