Ejector Sleeves

Product Introduction: High-Quality Ejector Sleeves

In the ejection systems of plastic and die-casting molds, the Ejector Sleeve is a critical component specifically designed to eject parts with cylindrical bosses or annular projections. As a mold manufacturer that produces for our own use, we maintain extremely stringent standards for concentricity, wall thickness uniformity, and surface wear resistance of ejector sleeves. Every sleeve undergoes precision screening to ensure it operates without breakage, sticking, or deformation during prolonged ejection cycles.

Self-Produced and Self-Used, Rigorously Selected
We are not only a supplier of mold components but also a mold producer ourselves. Through extensive practical experience in our own molds, we have repeatedly validated the material, concentricity, wall thickness tolerance, and surface treatment of ejector sleeves. Only those with stable performance and exceptional durability are approved for our supply system.

Premium Materials, Precision Machining
Our ejector sleeves are manufactured from high-quality heat-resistant steels such as SKD61 and SKH51. Both the inner and outer surfaces undergo nitriding treatment, achieving a hardness of HV900 to HV1100. This material and process ensure excellent wear resistance and deformation resistance under high-temperature, high-frequency ejection conditions.

Guaranteed Concentricity, Smooth Ejection

The fitting precision between the ejector sleeve and the mating ejector pin directly impacts ejection performance. We strictly control the concentricity of the inner and outer diameters to ensure a uniform fit clearance with the matching ejector pin (sleeve pin). This guarantees stable, smooth ejection without sticking, and prevents product whitening or push-through marks.

Complete Specifications, Customized Solutions
For standard specifications, we maintain regular inventory of common inner diameters, outer diameters, and lengths to support quick dispatch. For non-standard customization, based on your mold structure requirements, we offer custom services for various inner/outer diameter combinations, lengths, step forms, and head shapes, with fast turnaround times.

We Can Also Source for You
If you have requirements for ejector sleeves or other mold components, whether standard or non-standard, we can leverage our production experience and supply chain resources to select and procure the most suitable parts for you. We know molds, and we know components.

Contact us today for samples or a quotation.