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Guangdong Yongtong Crane Machinery Co.,Ltd Professional intelligent lifting solution service provider
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What is the difference between qd bridge crane and qz bridge crane

2023-03-04

qd type bridge crane is a kind of universal double beam bridge crane, suitable for all kinds of material handling. qz type bridge crane is a kind of double beam bridge crane specially used for bulk materials, equipped with grab as spreader. What kind of difference they have Yongtong heavy machine for you to analyze below.
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qd bridge crane is a kind of universal double beam bridge crane, suitable for indoor or outdoor factories, warehouses, wharfs and other places for material handling. qz type bridge crane is a kind of double beam bridge crane specially used for bulk material handling, equipped with grab as lifting gear, suitable for power plants, cement plants, mines and other places.
qd type bridge crane works in the A5-A7 class, with a load rating of 5-450 tons and a span of 10.5-31.5 meters. The qz bridge crane is rated A6-A7, has a load rating of 5-20 tons and a span of 10.5-31.5 meters.
The main structure of qd type bridge crane includes box girder, end beam, trolley running mechanism, trolley and electrical equipment. qz type bridge crane in addition to the structure of qd type bridge crane, there are grab opening and closing mechanism and grab itself.

qd type bridge crane is characterized by simple structure, convenient operation, easy maintenance, long service life, safe and reliable. It can be according to different working environment and requirements, choose different lifting tools, such as hooks, electromagnetic sucker, clamp, etc. It can also be based on user needs, increase the auxiliary beam or amplitude mechanism.


The main feature of qz bridge crane is that the grab can automatically open and close, to adapt to different shapes and states of bulk materials. It works in two ways: over - and non-over -. Overcenter refers to the grab in the car running up and down, can pass through the center line of the main beam; Non - over - center refers to the grab in the car running up and down, can not cross the main beam center line. Overcentring mode can improve work efficiency, but need to increase the height of the main beam; Non-core mode can save space, but need to increase the length of the trolley.