Hercules® indexers are offered in two designs—the pin indexer, and lift indexer. Each serves to maintain the spacing of trolley's on a power chain. Hercules® pin indexers generally use a two-pin design, where each pin opens and closes to advance trolley's in a timed setting. Hercules® lift indexers are used to stop a trolley until a lift cylinder raises the trolley to the power chain. Lift indexers no longer require the lift rail to be built up with weld, and ground down as it wears. Instead, replace the rails of the Hercules® lift indexer with new, precision built bolt on rails. All wearable parts are 100% replaceable with common hand tools. IDFI's professional installation team can also provide the industry's best installation services for your indexer.