A04 Heavy Duty Iron Core PU Caster — 8" (200 mm), 1,500 kg Capacity, Shock-Absorbing Spring Suspension (A04-1KU Series — Iron Core Polyurethane, Shore 95A, Galvanized Bracket) ① Product Overview The 8" (200 mm) model in the A04-1KU Series is a super heavy duty, impact-resistant flat iron core caster built for extreme loads. Each wheel carries up to 1,500 kg (3,307 lbs), giving a combined 6,000 kg (13,228 lbs) system load on a standard four-caster setup. The 75 mm wide flat PU