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It is reported that Caterpillar has signed a contract with Zhengyang City, and plans to distribute mine trucks and hard rock drilling rigs in Xiangyang City. The project was part of the major investment promotion activities in the Bohai Rim area in Zhengzhou City. On September 27th, a centralized signing ceremony was held at Henan Mansion in Beijing.
Before signing the contract, the leaders of Zhengzhou City and Liyang City visited Caterpillar's headquarters in China and met with Caterpillar Group Vice President Chen Qihua to expand investment, adjust product structure, layout new products, and plan mining machinery in Xiangyang City. The industrial park project was deeply connected. After the negotiations were concluded, both parties signed a project investment agreement on the spot.
It is understood that Caterpillar Inc. of the United States was established in 1925 and is among the top 500 companies in the world. It is one of the world’s largest manufacturers of construction machinery and mining equipment, gas engine and industrial gas turbine manufacturers, and the largest diesel engine manufacturer in the world. . Caterpillar's mining-related equipment, diesel and natural gas engines , industrial gas turbines, and diesel-electric hybrid power units account for two-thirds of its global business.
A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.
The basic hoist has two important characteristics to define it: Lifting medium and power type. The lifting medium is either wire rope, wrapped around a drum, or load-chain, raised by a pulley with a special profile to engage the chain. The power can be provided by different means. Common means are hydraulics, electrical and air driven motors. Both the wire rope hoist and chain hoist have been in common use since the 1800s, however mass production of an Electric Hoist did not start until the early 1900s and was first adapted by Germany. A hoist can be built as one integral-package unit, designed for cost-effective purchasing and moderate use, or it can be built as a built-up custom unit, designed for durability and performance. The built-up hoist will be much more expensive, but will also be easier to repair and more durable. Package units were once regarded as being designed for light to moderate usage, but since the 60s this has changed. Built-up units are designed for heavy to severe service, but over the years that market has decreased in size since the advent of the more durable packaged hoist. A machine shop or fabricating shop will use an integral-package hoist, while a Steel Mill or NASA would use a built-up unit to meet durability, performance, and repairability requirements. NASA has also seen a change in the use of package hoists. The NASA Astronaut training pool, for example, utilizes cranes with packaged hoists.
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Eurocrane (China) Co., Ltd. , http://www.eurocranegroup.com