Mineral density for building strength

When casting our weight plates, we use lamellar graphite grey iron. This material delivers high density and stable mechanical performance under vertical impacts. Unlike cement-filled plastic plates or stamped thin sheet steel, the mass remains concentrated in a small volume, preserving the kinematics of your pulls and saving sleeve space on the barbell.

Strict casting standards

The quality of a raw plate is first measured by touch and the geometry of its center bore. We inspect several critical points straight out of the sand molds:

• Bore precision: a clean 28,5 mm opening that slides onto the bar without excessive play or abrasive friction.
• Surface grain: a raw texture that holds chalk without requiring a slick plastic paint coating.
• Metal consistency: the absence of internal air pockets ensures symmetrical weight distribution.

The weaknesses of low-end materials

Entry-level weight plates often rely on overly brittle white cast iron or thick vinyl coatings that conceal material flaws. These shells eventually crack under repeated use, releasing sandy filler.

Our loading recommendation

Always choose bare, degreased cast iron. For balanced loading, alternate modest increments of 1,25 kg and 2,5 kg to keep bar paths straight without adding unnecessary joint strain.