Kirow Ardelt GmbH Eberswalde, referred to as Ardelt, is a German crane manufacturer. The company specialises in manufacturing double jib level luffing cranes which are based on the patented double jib principle. Ardelt has produced more than 4,700 harbour cranes. Ardelt also makes single jib-level luffing cranes and balancer cranes. The range also includes a mobile harbour crane with a high gantry that is also based on the double jib system.