About SpareGraph

SpareGraph documents what replaces obsolete industrial components — with the evidence, confidence level and verification date attached to every conclusion.

The focus is packaging machinery and industrial automation: PLCs, HMIs, servo drives, VFDs, motion control, safety hardware, sensors, legacy control systems and discontinued machine-specific parts.

SpareGraph does not sell parts and is not a marketplace. It is a technical reference: every published page distinguishes between verified facts, candidates and information that still requires verification before purchase.