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Harbor portal cranes are mainly applied to harbors, ships at wharfs and vehicles for mechanized handling and transshipment, so as to improve the handling efficiency and speed up the turnover of ships and vehicles. This type of crane, a rail mounted and full circle model which is designed to adopt the development of inland river ports in recent years, has four major mechanisms: lifting mechanism, luffing mechanism, swiveling mechanism and cart traveling mechanism. These four mechanisms, which can act both individually and jointly, can reduce auxiliary time and improve efficiency. Thus it is a general model which features good versatility, excellent flexibility, wide operating range and light weight. This type of crane is suitable to vertical-faced wharf's of small harbors. It can work with hook or grab bucket, and is suitable for handling of various sundry and bulk goods.
It has complete safety devices and communication and lighting systems.