Profile: Keman Roller Shutter Engineering Limited specializes in industrial roller shutters, agricultural shutters, retail and commercial roller shutters & remote control roller garage doors. Our industrial roller shutters are fitted with additional wind protection for exposed locations, or with a variety of control systems including remote control and auto open or close. Medium duty roller shutters are typically fitted with either electric motors or manual reduction gear hand chain systems. These are operated via a single phase tubular motor and switching systems, or by internally operated haul chain manual systems. Roller garage doors are fully insulated aluminum roller shutters complete with excellent draft protection, and weather seals all round, operated via tubular motor and remote control system.