15 ton Crane Hook

Crane hooks can be categorized by their shape as follows:

15-ton single hook for cranes: The most common type, simple in structure and easy to use.
15-ton double hook for cranes: Provides more symmetrical force distribution, often used for large tonnage or frequent applications. 15-ton single hooks are more common.
15-ton sling hook/nose hook for cranes: Features a special shape to prevent the sling from slipping off.

15-ton crane hooks can be categorized according to the type of crane they match:

15-ton overhead crane hooks:
Overhead cranes are the most common fixed lifting equipment in factories, workshops, and warehouses. For the commonly used 15-ton capacity, the hook assembly mainly comes in two forms:
Single pulley hook assembly (for small lifting heights): Suitable for situations where the lifting mechanism is a single drum and a single wire rope winding. The single pulley hook assembly has a relatively simple structure and is lightweight. It typically consists of a hook, a crossbeam, a single pulley, a bearing, and a safety latch.
Double pulley/multi-pulley hook assembly (most common and typical): This is the most common design for 15-ton bridge crane hooks. It achieves labor saving through the pulley system (moving pulley), thereby reducing the power required by the winch and the tension of the wire rope. The typical structure is: hook + crossbeam/side plate + two (or more) pulleys + thrust bearing + fully enclosed safety latch. The wire rope descends from the drum, passing over the pulleys (moving pulleys) of the hook assembly and the pulleys (fixed pulleys) on the upper trolley, forming a "multiplier" (e.g., 2x, 3x, 4x). For 15-ton cranes, a multiplier of 2 or 3 is common. 15-ton Gantry Crane Hook:
The core lifting mechanism (hook assembly) of gantry cranes (port cranes) is similar in principle to that of bridge cranes, but because their applications are mostly outdoors, special requirements are placed on the durability and resistance to environmental interference of the hook. Corrosion protection design of gantry crane hooks is paramount. The most common corrosion protection method is galvanizing (hot-dip galvanizing), which effectively resists outdoor rust. If used in ports (salt spray environments), a higher level of coating or stainless steel components are required. Double/multi-pulley hook assemblies are the mainstream for gantry crane hooks. Reducing wire rope tension through pulley assemblies (multipliers typically 2, 3, or 4) is a standard design for 15-ton cranes. 15-ton mobile crane hook:
The hook system of mobile cranes (such as truck cranes, tire cranes, and crawler cranes) is more complex, integrated, and needs to cope with changing working conditions. Its safety requirements and operating logic are significantly different from those of fixed bridge cranes and gantry cranes. The "hook" of a 15-ton mobile crane is usually not a fixed component, but part of its main hoisting mechanism, and may achieve variable lifting ratio through a pulley system, which is its core characteristic.