Rite-Hite’s new Raptor rubber doors are made from ¼-in. SBR rubber. The roll-up style doors are housed on an overhead barrel when open. Raptor Dock doors use counter-balance springs to assist the Jack-Shaft Operator, while the Raptor Pro doors use a springless, direct-drive, variable-speed operator system. The rubber doors offer increased durability and require minimal maintenance when compared to rolling steel or sectional doors. They operate at speeds of 48 in/sec., depending on door size. A breakaway feature automatically re-feeds the door back onto its track if a worker or forklift impacts it.