Qingdao Haosail Machinery Co., Ltd.

WST089 7612 Pulley Block Double Sheave with Hook Feature

• Labor-saving and efficient: Compared with single-wheel pulleys, double-wheel pulleys can provide greater mechanical advantages, usually achieving a mechanical benefit of 2:1, that is, only half the force is needed to lift objects of the same weight, which can improve lifting efficiency and reduce the burden on manpower or mechanical equipment.

• Wide load range: The rated load is usually between 0.5 tons and 32 tons, and common specifications are 0.5 tons, 1 ton, 2 tons, 3.2 tons, 5 tons, etc., which can meet the lifting needs of various objects of different weights.

• Excellent material: Generally made of forged high-strength alloy steel, it has high strength, good wear resistance and corrosion resistance, can be used in harsh environments, and has a long service life.

• High-quality surface treatment: The surface is sprayed or galvanized, which is not only beautiful, but also can further enhance the anti-corrosion ability, prevent rust, and extend the service life of the pulley.

• High safety factor: The hook is usually forged from high-quality alloy steel. The safety factor of some products can reach 3 times or more, and may be tested for 200% overload capacity to ensure safety during use.

• Flexible force direction change: The direction of the pulley and pulley group pulling the wire rope can be changed multiple times. With the 360° rotation function of the hook, the lifting direction can be adjusted more flexibly, making the lifting and movement of objects more accurate.

• Good adaptability: It can adapt to wire ropes of different specifications. The common wire rope diameter ranges from a few millimeters to tens of millimeters. The pulley size is usually 3 inches to 8 inches, which can meet the needs of various ropes and different working scenarios.

• Practical structural design: Some pulleys have removable side panels, which can be unscrewed or removed on one side to facilitate the sliding of the winch cable or rope, and then reinstall the side panel to prevent the cable from escaping from the pulley groove, which is convenient for installation and maintenance.

WST089 7612 Pulley Block Double Sheave with Hook Typical applications

• Heavy construction: used for lifting heavier materials such as steel bar bundles, prefabricated panels, and steel structure components. With cranes or winches, the force is dispersed by double wheels to improve lifting efficiency. It is especially suitable for high-rise building component installation, bridge erection and other scenarios.

• Industrial equipment handling and assembly: lifting heavy equipment such as large machine tools, motors, and pressure vessels in the factory, assisting in the transfer of equipment in the workshop, assembly of production lines, and disassembly and assembly of components during maintenance to ensure the smooth movement of heavy objects.

• Ship and port operations: used for lifting heavy materials such as containers and ship engines on cargo ships and docks. It can also be used with cables to adjust the docking position of ships, or to lift hull parts and large maintenance tools during ship maintenance.

• Mining and resource mining: suitable for lifting ore, tunneling equipment, support materials, etc. in mines. In underground mines or open-pit mines, it assists in lifting heavy objects and changing the force direction to adapt to the lifting needs of complex terrain.

• Rescue and emergency: In road rescue, the double-wheel design can enhance the pulling force output by cooperating with the winch to drag trapped heavy vehicles (such as trucks and engineering vehicles); in disaster rescue such as earthquakes and floods, it can be used to lift disaster relief equipment and clear obstacles.

• Agriculture and forestry: It is used for lifting and transferring agricultural machinery (such as harvesters and tractors), or lifting logs and large-scale logging equipment in forestry, and adapting to the movement of heavy objects in complex terrain in the wild.

• Power and communication engineering: In the construction of high-voltage towers and communication base stations, transformers, tower components, communication cabinets, etc. are hoisted, and the labor-saving characteristics of the double wheels are used to reduce the pulling force burden of high-altitude operations.