RCPL Runner Flow Direction Change Pins for Ejector Pins

RCPL runner flow direction change pins are used in injection mold assemblies where the runner needs a controlled change in flow path while remaining mechanically integrated with ejector systems. They are commonly specified for automotive connector and electrical housing molds, where stable runner guidance helps maintain repeatable fill behavior from cavity to cavity.

In multi-cavity packaging and consumer product molds, the configurable guide length (via the available F range) allows engineers to position the pin-tip interaction precisely for the runner groove geometry, improving stability during cycling and reducing sensitivity to layout variation.

For precision industrial parts molds that use ejector pins alongside runner components, these change pins support consistent guidance by matching the ejector pin guide function with the runner flow direction alteration. The available tip shapes (I, K, L, N, T) and the selectable outer diameters (D = 8, 10, 13, 16 mm) make this variant suited to different runner envelope sizes.

The provided specification data for this RCPL change pin focuses on geometry (tip shapes, diameters, groove dimensions, and guide lengths) and does not include the steel grade or heat treatment state. As a result, the material properties (e.g., hardness in HRC) cannot be stated from the current input.

What can be supported from the data is the manufacturing intent: the pin is designed to act as a runner groove interaction component with an ejector pin guide length. That geometry typically requires stable wear performance at runner-contact surfaces, but the exact wear resistance and toughness trade-offs depend on the selected steel and hardening process.

• Steel grade / HRC: Not specified in the provided parameters.
• Heat treatment: Not specified (no quench & temper, nitriding, or pre-hardened state given).
• Manufacturing process: Geometry shows a machined/ground pin profile to match groove envelopes (A/B/C) and taper (G).

Select the runner flow direction change pin by matching its interaction geometry and the ejector guide engagement to the mold’s runner layout. Start with the outer diameter D (available 8, 10, 13, 16 mm) so the pin fits within your component clearances and any runner bushing envelope.

Next, match the runner groove dimensions that the pin is intended to define: choose the shape/tip type (I, K, L, N, T) and select the groove-related parameters A, B, and C within the available ranges (A: 3 to 3～6 mm; B: 1～1.5 up to 1～4 mm; C: 2 to 2～4 mm).

For ejector integration, set the guide length F to your required engagement (8～30, 10～30, or 12～30 mm). If your drawing uses a target L range (15～50, 20～60, or 30～60 mm), choose the corresponding L dimension designation/selection and verify LC (20～49.9 or 20～59.9) for the intended positioning.

• Taper angle G is given as 0～5 (check against your runner transition design).
• Tolerance/fit: Specific tolerance values are not provided; confirm clearances with your mold design drawings and adjacent ejector components.