Designs and configurations
Straight Ejector Pins
Round pins transfer ejector-plate movement to the molded part. SKD61 and nitrided configurations are options within this family, not different functions.
Designs and configurations ↓Material options
SKD61 · H13 · SKH51
The final grade and treatment are confirmed after reviewing your drawing and operating conditions.
Dimensions, tolerances, hardness, quantity and delivery are confirmed in the quotation. No fixed stock specification is implied.
Designs and configurations
Select function and geometry, then confirm material, fits and treatment. Options may be combined; dimensions follow the agreed drawing.
Standard straight ejector pin
Uniform round shank for conventional injection molds—a stable baseline for ejection layout.
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Imperial straight ejector pin
Imperial dimensions for international mold systems and standardized spares.
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Metric straight ejector pin
Metric sizing simplifies standardization, interchange and procurement.
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Custom length straight pin
Non-standard diameters and lengths for space-limited molds and stroke needs.
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In injection molds, straight ejector pins are the default choice for conventional ejection in multi-cavity tools—dependable for most parts without anti-rotation needs, and straightforward for batch production and long service life.
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Family-specific questions
What is the main difference between a step ejector pin and a straight ejector pin?
A step pin limits stroke via its stepped body; a straight pin has no built-in stroke limit—travel is set by other mold features.
What causes ejector pin bending or uneven ejection?
Often linked to pin straightness, heat-treat consistency, and guide/clearance—review diameter, length and guidance together.
What causes frequent breakage or abnormal wear?
Insufficient material quality, poor surface treatment, lateral load or poor fit can contribute—reassess grade and surface for your duty.
Why are pin dimensions inconsistent across batches?
Inconsistent process control in mass production causes drift—define tolerances and inspection in your PO.
What is needed to order custom straight pins?
Photos alone are usually insufficient—supply mold-related drawings with diameter, length, tolerances, material and tip form.
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