PL-Side Exchange Date Mark Pin Sets
The most widely used date marking system — exchange date codes directly from the parting line face without mold disassembly. Available in concave, convex, standard corner, and tapered corner configurations.
Products
Date Mark Pin Sets (10/11/12 Indication)
Standard concave characters, PL-side exchange.
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Outside Rings (10/11/12)
Month-indicating outside rings for standard pin sets.
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Inside Arrows (Year 26)
Year-indicating inside arrow for PL-side exchange.
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Outer Corner Tapered Pin Sets
Tapered corner design for improved sealing.
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Outside Rings — Outer Corner Tapered
Matching tapered rings for tapered pin sets.
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Convex Character Pin Sets
Raised (convex) characters on molded part surface.
View DetailsAccessory Compatibility Chart
Each pin set requires matching accessories. Use this chart to order the correct components:
| Pin Set | Compatible Outside Ring | Compatible Inside Arrow | Character Type |
|---|---|---|---|
| Standard Pin Sets (10/11/12) | Standard Outside Rings (10/11/12) | Inside Arrows (Year 26) | Concave |
| Outer Corner Tapered Pin Sets | Tapered Corner Outside Rings | Inside Arrows (Year 26) | Concave |
| Convex Character Pin Sets | Standard Outside Rings (10/11/12) | — (not required) | Convex |
Compare Character & Corner Styles
Two design decisions: character style (concave vs convex) and corner geometry (standard vs tapered).
| Feature | Concave (Standard) | Convex (Raised) | Standard Corner | Tapered Corner |
|---|---|---|---|---|
| Mark on Part | Recessed characters | Raised characters | — | — |
| Readability | Good under light | Excellent, tactile | — | — |
| Sealing | — | — | Standard fit | Improved seal, less flash |
| Cost | $ | $$ | $ | $$ |
| Best For | 80% of standard molds | Consumer-visible areas | Standard molds | Flash-sensitive applications |
Decision rule: Concave characters produce raised marks on parts (easier to read); convex characters produce recessed marks (more durable). For surface finish impact analysis, see our Concave vs. Convex Character Comparison.
Are You on the Right Page?
✅ PL-side exchange is right if:
- You can access the date mark insert from the parting line face
- You want the fastest exchange method (no mold disassembly needed)
- The date mark position is on the cavity side of the parting line
🔄 Consider switching to:
- Parting line is sealed or inaccessible? → Plate-Side Exchange
- Need year AND month in one compact insert? → Double Ring
- Mold temperature >200°C? → Heat-Resistant
Application Scenarios
See how these products solve real engineering challenges across industries:
High-Volume Consumer Goods Molding
Daily date code changes on multi-cavity packaging molds require the fastest exchange method. PL-side pins can be rotated in-press from the parting line face — no mold opening needed.
Why it fits: PL-side pins are rotated directly from the parting line face using a DTPPN screwdriver — no mold disassembly required. The operator reaches the pin through the mold opening, rotates to the next month position, and resumes production in under 30 seconds per cavity.
Multi-Cavity Automotive Components
Connector housings and interior trim parts molded in 4–16 cavity tools need simultaneous date updates across all cavities. Tapered corner pins provide superior seal to prevent flash at the parting line.
Why it fits: Outer corner tapered pins create a positive taper seal (typically 1°–2°) between the pin head and the cavity wall. This eliminates the micro-gap that standard flat-head pins leave, preventing flash formation on Class A automotive surfaces that require zero visible parting line witness marks.
Frequently Asked Questions
Can I mix concave and convex character date mark pins in the same mold?+
What is the outer diameter tolerance for PI exchange date mark outside rings?+
How do I install outer-corner-tapered date mark pin sets versus standard corner types?+
Engineering Resources
Need PL-Side Exchange Date Mark Pin Sets?
Specify your mounting diameter, character style, and corner type for a quote.