First, the difference between the QD type and LH type substantive: QD can reach a higher level of work, LH is difficult to achieve a high level of use, this is the Achilles heel of the double gourd, if forced to use can also be used, but to reduce the equipment for life . This is a substantial difference (on the landlord said, the large tonnage, high 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, and so obvious ), the structure in the form of different QD crane Tibet, is the largest significant difference, there are different price points. Third, what better usability: This depends on the manufacturer's usage, and on the landlord to describe Shaanxi QD crane, according to tonnage, such as frequency of use, working time factor judge: 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, the big wheel pressure, weight volume. LH: compact, light weight, simple operation, space-saving. Drawback is not up to the high level of work five, control what's the difference: Ground Operation: handle operation / remote operation. Air operations: Cab (cam control, linkage Taiwan control) 1, handle: people go with the car, saving staff, both to control the traffic, but also hanging objects. Cons: People with hanging objects go 2 more dangerous, remote control: lifting large items can not follow the more dangerous road to go. Cons: limited vision. 3, air operation: Operation vision. Cons: hand operation, you need to meet the following personnel. Good service, reliable quality assurance is our company reputation. Crane Co., Ltd., Henan Province, gravity has always been committed to ISO9000 standards based, customer-focused quality management system, with a sound quality management system. I am in the 1994 version has been achieved ISO9001 quality management system certification basis, in December 2004 has made a version of the 2000 ISO9001 quality management system certification. In product manufacturing and testing, a complete technical documentation and inspection procedures. Testing equipment, including rays and ultrasonic flaw detector, metallographic analyzer, gear tester, tensile, impact testing machine and chemical analyzers QD cranes, with cranes and gear comprehensive test-bed comprehensive test-bed. Company employees have a strong sense of quality, the cautious attitude, technical skill and meticulous work style fusion products handled in each. Advanced a comprehensive testing methods, first-class professional inspection personnel and rigorous and style of work, plus always on the minds of the users and the quality of the workforce, so that the gravity of Henan Province Crane Co. has a reliable quality assurance capacity. Xinjiang QD crane, lifting gravity (certified), QD crane provided by Crane Co., Ltd., Henan Province gravity. Gravity Henan Province Crane Co. (www.zlqzj.com.cn) to provide "single and double girder gantry crane, light lifting equipment, lifting accessories, electric hoist." Business, the company has "ArtMia River heavy lift "and other brands. Focus on mechanical processing industries, in Xinxiang have higher visibility. Welcomes inquiries, contact: Hulu Jun.