According to the Indonesian Compass Report on September 28, 2010, Jeddah, chairman of the Indonesian National Investment Coordinating Committee, revealed in Seoul that a tire manufacturing company in South Korea will invest 1.2 billion U.S. dollars (about 9.3 billion renminbi) in Indonesia. On September 27, 2010, a delegation of officials from the Indonesian Ministry of Industry and the National Investment Coordinating Committee visited South Korea. The news was revealed to the outside world after the delegation and South Korean investors met in Seoul. Jeddah did not disclose which company it is, but said that the company has already started to locate a factory in Indonesia. Institutional Funding Has Changed Significantly According to data released by the Indonesian National Investment Coordinating Committee, South Korea invested 626 million U.S. dollars (approximately 4.85 billion U.S. dollars) in Indonesia in 2009, an increase of 107.4% year-on-year.
Tower cranes typically use a combination of fixed and movable pulleys to lift and lower heavy loads. The pulleys are usually attached to the jib or boom of the crane and are used to change the direction and increase the mechanical advantage of the lifting system.
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Some common types of pulleys used in tower cranes include:
1. Fixed Pulleys: These are stationary pulleys that are mounted at a fixed point on the crane. They change the direction of the lifting force and help distribute the load evenly.
2. Movable Pulleys: These pulleys are attached to a movable block that can be raised or lowered along the jib or boom of the crane. They provide additional mechanical advantage and allow for easier lifting of heavy loads.
3. Trolley Pulleys: These pulleys are used in conjunction with a trolley system that allows the crane to move horizontally along the jib or boom. The trolley pulleys help distribute the load evenly and provide smooth movement of the crane.
4. Counterweight Pulleys: Tower cranes often use a counterweight system to balance the load being lifted. Counterweight pulleys are used to attach the counterweights to the crane and ensure proper balance and stability.
It's important to note that the specific configuration and number of pulleys used in a Tower Crane can vary depending on the crane model and lifting capacity.