One Million Annealed Spring-Steel Link Cartridges in Six Weeks

A prime contractor feeding ammunition-handling systems ordered a million annealed spring-steel link cartridges against a six-to-eight-week window, to a mil-spec print they could not move on. Every dimension called out was a feed-clearance dimension; a bad batch jams the mechanism downstream.

Formed strip steel is a springback game, so we set the forming radii in the die and verified on our own metrology rather than guessing against the strip lot. Material ASTM-A684 1047 annealed, 1.0 mm, tooled in-house from the customer print.

Outcome

• 1,000,000 cartridges designed, tooled, built, and shipped inside the 6–8 week commitment
• Tightest tolerance ±0.005 mm, verified on vision projectors (±0.002 mm capability) per lot
• Full traceability documentation with each shipment
• Repeat orders on rolling six-week slots once the die family was proven

Specifications

ASTM A684 1047 annealed spring steel · 1.0 mm gauge · formed strip, no plating · MOQ 10,000 · export controlled shipments handled case-by-case