Scientific winch: Cable length range: 50m-10000m Tensile range: 20kg-50t Cable diameter range: 6mm-150mm Drive mode: hydraulic or electric variable frequency winch Equipped with real-time display of cable length, speed, and tension Cable: steel cable, fiber cable, coaxial cable, optoelectronic composite cable, umbilical cable Optional functions: constant tension, wave compensation, automatic cable retraction, cable length protection, tension protection Other: with double fold line rope groove leather/with safety brake/local control+remote control