Light Load Ball-Lock Retainers

These light-load ball-lock retainers are used inside precision die and punch tooling to secure the punch during repeated press cycles. Because they’re designed for light load punch retention in compact housings, they help maintain consistent positioning without adding excessive overall height to the tool stack.

• Button die and small punch tooling: Select the unit by the applicable punch diameter (D = 10–38 mm) so the ball-lock action securely locates the punch while minimizing play that can affect part dimensional accuracy.
• Light-load locating for press operations: The backing plug with the dowel-hole supports stable alignment during press strokes, reducing the risk of tool drift under normal loads.
• Compact die sets: The “body only + backing plug” set configuration simplifies assembly while keeping the retainer footprint suitable for space-constrained mold layouts.

The provided specification set focuses on the light-load ball-lock retainer geometry (type, components, and applicable punch diameter), but it does not list a specific steel grade, hardness (HRC), or heat-treatment state. As a result, material properties such as wear resistance/toughness balance and any coating or surface hardening (e.g., nitriding) cannot be confirmed from the input data.

• Manufacturing relevance: Ball-lock retainers are typically precision machined components to ensure reliable ball engagement and repeatable fit between the body and backing plug.
• Selection note: For mold builders, confirm the steel grade and heat treatment from the item’s technical drawing (or MISUMI material certificate) before specifying for long-run abrasion, especially where punch wear or shock loading is expected.

Correct sizing is primarily determined by the applicable punch diameter D. Choose the retainer variant labeled for For light load type punches or For button dies, then match its D = 10–38 mm range to the punch you intend to retain.

• Match diameter first: Verify the punch’s major diameter (the dimension that interfaces with the ball-lock retention feature) falls within the selected retainer’s D specification.
• Align with the mold stack: The kit configuration is body only + plug; ensure the tool’s dowel-hole backing plug design aligns with your die set’s alignment strategy.
• Tolerance/fit: Because ball-lock systems rely on controlled engagement, use the supplier drawing for the specified fit and working clearances. If you adjust components (e.g., regrind punches), re-check the punch diameter against the 10–38 mm window to avoid insufficient retention or binding.