| Quantity: | |
|---|---|
23167
YIXUN mold
8480419090
| Parameter | Full Details |
|---|---|
| Mold Name | 1×2 Cavity POM Plastic Support Holder Injection Mold |
| Target Product | POM (Acetal) Support Holder (industrial bracket/structural support component) |
| Product Material | POM (Polyoxymethylene / Acetal) – high rigidity, low friction, dimensional stability |
| Cavity Layout | 1×2 Cavity (2 parts per cycle) |
| Runner & Gate System | Large Sprue Cold Runner + Submarine Gate (tunnel gate) |
| Mold Steel | 738H (P20 modified pre-hardened steel, HRC ~30–35) |
| Surface Finish | Semi-Finish Polish (smooth functional surfaces, uniform industrial finish) |
| Mold Life | ≥ 500,000 cycles (under standard maintenance) |
| Ejection System | Pin ejection (optimized for complex bracket geometry) |
| Application | Industrial equipment supports, machinery brackets, structural holders |
Material Choice: 738H is a pre-hardened, modified P20 steel, widely used for medium-to-large volume industrial molds. Its benefits include:
Good hardness and toughness (HRC 30–35) to withstand the high injection pressures required for POM molding.
Excellent machinability and polishability, making it ideal for semi-finish polishing and complex geometries like the support holder’s angled arms and ribbed sections.
Cost-effective for mid-to-high volume production, balancing durability with lower upfront costs compared to fully hardened steels.
The 1×2 cavity configuration produces two identical support holders per cycle, doubling output while maintaining balanced melt flow and consistent part quality. This layout is optimized for mid-to-high volume production, reducing per-unit costs without compromising precision.
Large Sprue Cold Runner:
Designed to handle POM’s high melt flow requirements, ensuring complete filling of the support holder’s thick and thin sections without short shots or flow marks.
Reduces pressure drop across the runner, maintaining uniform filling in both cavities.
Submarine Gate (Tunnel Gate):
The gate is hidden beneath the part’s surface, leaving no visible gate marks on the support holder’s functional or aesthetic surfaces.
Automatically breaks off during ejection, eliminating secondary trimming processes and streamlining production.
Ideal for industrial components where surface quality and assembly fit are critical.
The mold cavities and cores receive a semi-finish polish, balancing functional performance and cost efficiency:
Ensures smooth, defect-free surfaces on the support holder, preventing drag or sticking during ejection.
Maintains uniform texture across all parts, suitable for industrial applications where high-gloss finishes are not required.
Reduces the risk of burrs or flash on the component’s edges, ensuring clean assembly and fit.
POM (Acetal) Material Properties:
High rigidity, low friction coefficient, and excellent dimensional stability – perfect for structural support holders requiring consistent fit and load-bearing capacity.
Resistant to wear, chemicals, and moisture, making the component suitable for industrial and machinery applications.
Molding Considerations:
The mold is optimized for POM’s processing requirements, including controlled melt temperature (~190–220°C) and uniform cooling to minimize warpage and shrinkage.
The large sprue and balanced runner system ensure even flow, reducing the risk of internal stress in the complex bracket geometry.
Industrial machinery and equipment brackets
Material handling and conveyor systems
Automotive and transportation structural supports
Household appliance components requiring rigidity and wear resistance
Cavity layout expansion (1×4, 1×8 multi-cavity for higher volume production)
Gate system upgrades (hot runner or pin-point gate for zero scrap production)
Surface finish modifications (higher polish grades, custom textures)
Mold steel upgrades (hardened steels for longer mold life)
Part geometry customization (adjustments to support arm length, mounting holes, or load-bearing features)
Balanced Performance & Cost: 738H steel and semi-finish polish deliver reliable performance at a competitive price point.
Efficient Production: 1×2 cavity layout and auto-trimming submarine gate reduce cycle time and labor costs.
POM-Optimized Design: Ensures the final support holder meets the high rigidity, dimensional stability, and wear resistance requirements of industrial applications.
Long Service Life: Robust construction and quality steel ensure consistent performance for hundreds of thousands of cycles.
