First, the difference between the QD type and LH type substantive: QD can reach a higher level of work, LH difficult to achieve high levels of use, this is the Achilles heel of double gourd, can also be used if forced to use QD electric double girder cranes, but To reduce equipment for life. This is a substantial difference (in the case of the landlord said, large tonnage, high working level does not recommend the use of double gourd) Second, the volume Yang and hoist any obvious differences: the obvious to say the words (wheel pressure, level, etc. is not obvious ), the structure of different forms, is the biggest obvious difference, there are different price points. Third, what better practicality: This depends on the manufacturer's usage of the QD double girder bridge crane, the landlord description QD, according to tonnage, frequency of use, and so the time factor evaluation: QD most applicable to the landlord. Four, list the advantages and disadvantages: QD: can carry a strong working level, can be used in more complex conditions and relatively poor condition. Easy maintenance. But the price is high QD cranes, wheel pressure big, large weight. LH: compact, light weight, simple operation, saving space. The disadvantage is that the work can not reach a high level five, the control mode What is the difference: Ground Operation: handle operation / remote operation. Empty parade: Cab (cam control, joint control station) 1, Handle: people go with the car, saving people, both can control the traffic, but also hanging objects. Cons: people walking more dangerous with hanging objects 2, remote: lifting larger and dangerous goods can not follow the traffic go. Cons: limited vision. 3, air operations: Operation vision. Cons: hand operation, requires the following personnel fit. Crane Co., the predecessor of Henan Province, Henan Province Gravity Gravity Crane Co. Plant lifting machinery for mining, manufacture and installation service for over twenty years of history, has accumulated a wealth of design and supporting lifting equipment and accessories, manufacturing , installation and maintenance experience. And have access to installation of special equipment issued by the State Quality and Technical Supervision maintenance permit (Lifting); special equipment manufacturing license (Lifting). The product range includes LDA electric single girder crane, LX electric single girder overhead crane, LH electric hoist bridge crane, QD general overhead crane and the appropriate lifting equipment. My company can provide customers design and manufacture some of the special requirements of non-standard cranes. The company's products throughout the country over the region. After receiving the license and installation of maintenance lifting machinery manufacturing license, and strengthen the company's standardized management. Make the design, production and enterprise management systems to adapt to the crane specialization, standardization and systematization of requirements. To further expand production, market and provide quality services to customers, and laid a substantial foundation. Description: The bridge crane which is on the high-altitude crane beam across the track to run two side, two double root beam beam. Dual beam has two roots beam, there is a certain gap between the beams. Walking along the beam mechanical part of the mechanical parts and crane mounted together in a small car, running across the upper part of the double beam. Lifting capacity may be greater control personnel in the control room on the crane. Need to ground commanders and work with the crane operator. Is a single beam or dual beam should be determined in line with the lifting capacity of the product model and specifications. QD electric double girder bridge, Chongqing QD, Henan gravity gravity provided by Crane Co., Ltd., Henan Province. "Single and double girder gantry crane, small light lifting equipment, lifting accessories, electric hoist." Preferred gravity of Henan Crane Co. (2), the company is located at: Changyuan Wei Zhuang Industrial Zone, over the years, Henan gravity to provide customers the best quality service, contact: Hulu Jun. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Henan gravity expect to be your long term partner!