... Construction Winch) is a kind general-purposed lifting equipment, with safety, convenient in operation, reliable, durable, low in ... crane motor. Steel welded drum with flange. Features: Switch controller with forward, stop and reverse Switching Method ... for construction, building Capacity from 3ton to 50ton, safety. Modelzf2zf3zf5zf8zf10Line pull capacity (kg)200030005000800010000average speed (m/min ...