S45C Steel APP Type Stopper Plates for Angular Pins
Stopper plates for angular pins (S45C steel) are APP type retainer plates designed to hold angular pins in a stable mounting condition. They help maintain consistent positioning during mold assembly and operation.
- APP stopper plate type supports secure retention of angular pins
- S45C steel construction with reliable strength for industrial durability
- Sized for compatible angular pin diameters to support proper fitment
- Used in die assembly applications where angular pin positioning must be stable
Specifications
4 configurations available
| Size | No. (Applicable angular pin dia.) | type |
|---|---|---|
| 13x28x8 | 6(4・5・6) | - |
| 16x32x8 | 10(8・10) | - |
| 22x38x8 | 16(12～16) | - |
| 26x42x8 | 20(20) | - |
Product Guide
Application Scenarios+
Angular pin retention is a critical step in large mold tooling because it directly affects part alignment and repeatability. These APP-type stopper plates are used in die assembly environments where angular pins must stay in a stable mounting position through repeated clamping cycles.
Common scenarios include die-casting and large mold fixture builds, where the angular pins index halves reliably and the stopper plate helps prevent axial or positional drift during assembly and operation. In these applications, the S45C steel provides adequate strength and stiffness for holding hardware under typical mold loads.
- Large die-casting mold assemblies: supports consistent angular pin positioning for stable die alignment.
- Repair and retrofit builds: APP type mounting style helps maintain the original pin seating condition when replacing components.
- High-repeat assembly processes: secure retention contributes to predictable fit during repeated tooling usage.
Material & Process Details+
This product uses S45C steel, a medium-carbon steel commonly selected for tooling components requiring good strength and manufacturability. While the exact hardness and heat treatment state are not specified in the provided data, S45C is typically used in either pre-hardened or quenched-and-tempered conditions depending on the required wear resistance and toughness.
- Strength vs. toughness trade-off: higher hardness improves wear resistance at the expense of reduced impact toughness; lower hardness improves toughness and handling robustness.
- Wear resistance: suitable for stopper plates where the primary function is stable retention rather than severe sliding wear.
- Comparative note: compared with higher-alloy tool steels (e.g., SKD/SKH types), S45C generally prioritizes cost-effective strength and formability; it is less alloy-rich for extreme wear/heat cycles.
Sizing & Selection Guide+
To select the correct stopper plate, match both the plate size and the applicable angular pin diameter. The available variable sizes are 13x28x8, 16x32x8, 22x38x8, and 26x42x8.
- For angular pins dia. 4, 5, 6, use the plate size that corresponds to No. 6.
- For dia. 8 or 10, select the No. 10 version.
- For dia. 12–16, select No. 16.
- For dia. 20, select No. 20.
For core/cavity compatibility, ensure the plate thickness (8) matches the mounting space allocated in your die assembly and that the angular pin seating geometry aligns with the pin diameter range. If your assembly uses precision fit standards, confirm mating features’ tolerances during design because this listing does not provide explicit tolerance values.
Frequently Asked Questions
Which APP type stopper plate size should I choose for angular pins with diameter 6 mm?+
Select the plate variant listed for No. 6, which applies to angular pins with dia. 4–6. Then choose the matching plate size from 13x28x8, 16x32x8, 22x38x8, or 26x42x8 according to the corresponding angular pin diameter class in your BOM.
What angular pin diameter ranges are supported by the available “No.” variants for these plates?+
The listing specifies: No. 6 supports dia. 4, 5, 6; No. 10 supports dia. 8 and 10; No. 16 supports dia. 12–16; and No. 20 supports dia. 20.
Is S45C steel suitable for stopper plates where wear is limited but stable retention is required?+
Yes. S45C is a medium-carbon steel chosen for tooling components that need reliable strength for stable positioning. Because stopper plates primarily provide retention and positioning (rather than high sliding wear), the S45C selection is generally appropriate for these duty cycles.
How do I ensure the stopper plate will fit in my die assembly when the thickness is fixed at 8 mm?+
Use only variants with the stated thickness 8 and confirm the plate thickness matches the allocated mounting depth. Also verify that the plate size class corresponds to the required angular pin diameter range (e.g., No. 16 for dia. 12–16).
Do I need to consider heat treatment specifics for S45C stopper plates when designing retention performance?+
The provided data confirms the steel grade is S45C, but it does not specify the exact heat treatment (e.g., pre-hardened or quenched & tempered) or hardness. For design-critical applications, confirm the actual heat treatment/hardness from the supplier documentation to validate wear resistance and any risk of deformation under your mold loads.
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