Straight Ejector Sleeve Components
Straight tubular sleeves and aligned center pin configurations designed for uniform ejection force distribution on circular molded core bosses.
Product Categories
Comparison Matrix: Sleeves vs Pre-Assembled Sets
Decide between custom sleeve and pin matching or ordering factory-aligned sets:
| Factor | Separate Sleeves | Pre-Assembled Sets |
|---|---|---|
| Alignment Mode | Manual pairing by mold maker (requires custom grinding) | Factory-aligned concentricity <0.010mm |
| Assembly Effort | High (grinding fitting diameter to fit custom pins) | Zero (plug-and-play installation) |
| Seizing Risk | Medium (risk of improper clearance tolerance) | Very Low (pre-cleared for thermal cycles) |
Decision rule: For production molds (>500K shots), pre-assembled sets reduce clearance-related failures by 60-80%. For prototype molds, separate components offer more flexibility. See our Pre-Assembled vs. Separate Sets guide for the full cost analysis.
Scenario Routing: Straight Ejection Assemblies
Route to the appropriate straight component group based on your specific project requirement:
Custom Core Alignment
Best when your core pin has custom head features or special venting profiles that require custom sleeve matching.
Fast Assembly & Low Maintenance
Best for standardized packaging molds where quick tool building and easy replacement of worn cores is paramount.
About Straight Ejector Sleeve Components
Straight hollow sleeve assemblies guide core pins over short to medium stroke ranges. Because the outer diameter remains constant, they provide compact packaging for multi-cavity tooling layouts.
Frequently Asked Questions
When is a straight ejector sleeve preferred over a stepped ejector sleeve?+
What are the assembly benefits of choosing pre-assembled straight sleeve-pin sets?+
What is the typical clearance recommendation for straight sleeve assemblies?+
Engineering Resources
Need a Custom Quote?
Specify your sleeve OD, bore ID, and length requirements. We supply individual straight sleeves, center pins, or factory-matched sets with guaranteed concentricity.