GEM Gianni Electromagnetic Shear Locks deliver a fully concealed locking solution engineered for doors that swing up to 180°. Our high-power electromagnet instantly pulls the stainless-steel armature plate into the lock frame as soon as the door closes, creating an unbreakable bond. Optimal performance is achieved with a 2–3 mm gap between the door’s top edge and frame, allowing the magnet to fully energize and secure the door. An integrated bond sensor continuously monitors armature alignment, preventing misfires and ensuring reliable door holding force every time. Ideal for commercial entrances, secure facilities, and high-traffic environments, GEM Gianni’s concealed shear locks provide unmatched security and precision.