Inch 1018 Steel Stroke End Blocks

This inch-format stroke end block is used inside leader/ejector space components to create a positive stop for moving elements. In injection mold tooling, it’s commonly applied where a sliding ejector, cam-driven mechanism, or guided actuator must reach a precise end position without over-travel.

• Automotive and industrial housings: Install the block on the mold base or support structure so the ejector stroke terminates repeatably, improving cycle consistency and reducing wear from uncontrolled travel.
• Machining & assembly stations: Use it as a robust stop-control feature during build and alignment of inch-system molds, benefiting from the straightforward inch configuration for easier integration.
• High-repeat duty molds: The 1018 steel variant supports durable, wear-tolerant stopping in shop conditions where consistent motion control is critical.

These design priorities make it well-suited for applications that require reliable positioning during every cycle while remaining practical to machine and assemble.

The stroke end blocks are made from 1018 steel, a low-to-mid carbon steel selected for good machinability and stable structural performance in mold auxiliary components. In typical mold-shop practice, 1018 is supplied in a non-hardened or lightly heat-treated condition so it can be formed and ground accurately to fit.

• Properties focus: balanced strength and toughness with moderate wear resistance for stop-control duties where impacts are limited.
• Heat treatment: usually as-received / normalized or stress-relieved for dimensional stability; intensive quenching and tempering is not implied by the provided data.
• Hardness trade-off: compared with tool steels, 1018 generally offers lower HRC and thus less wear capability at sliding contacts, but improves overall toughness and workability.

For higher abrasion environments, engineers typically consider hardened tool-steel alternatives; however, this product is specified specifically as 1018 steel for dependable stopping control.

Select the correct stroke end block by matching the diameter D and the length A to the mold’s stop geometry and mounting features. This series is offered in D = 2.00 in or 2.50 in, and A = 1.5 to 6.5 in.

• Diameter matching: Choose D so it fits the corresponding leader/ejector-space pocket, bore, or locating clearance in your inch-system layout without interference.
• Length matching: Select A to cover the required stop engagement zone across the travel path, ensuring the component reaches the intended end position before over-travel.
• Tolerance & fit: Even with the specified inch ranges, confirm your assembly clearance and stop contact strategy (surface finish and alignment) to maintain repeatability across cycles.

In this configuration, D and A appear as fixed selectable dimensions (2.00/2.50 in; 1.5–6.5 in), so engineers should map the required cavity/core clearance to one of the available size options.