ASK

1. Four sets of end stops and stroke limiting devices should be mounted at the end of the travel. 2. All limiters should be complete, sensitive and valid. 3. The rope guide should move flexibly and the automatic stop should be sensitive and...

Bridge girder launchers, as a kind of construction hoisting machinery, are mainly used in the erection of highways, railways, bridges, etc. Being large-scale mechanical equipment, it will have a significantly adverse impact on national econ...

Gantry Crane: How to Adapt Different Working Surroundings? Gantry crane with electric hoist designed and manufactured by Zhengzhou Huazhong Construction Machinery Co., Ltd (ZZHZ) are widely used for all kinds of working circumstance with di...

Honeycomb girder developed by ZZHZ is widely used for highway launching gantry and gantry crane. Please follow below steps to learn the applicable range of honeycomb girder: 1. Application of honeycomb girder gantry crane: Honeycomb girder...

Zhengzhou Huazhong Construction Machinery Co., Ltd (short for ZZHZ) a leading manufacturer in China specialize in bridge construction equipment, such as gantry crane, bridge girder launcher and girder transporter for highway and high speed r...

Overhead Lifting Hoist, Spreader and Suspension of HZP40 Segment Lifter...

History of Gantry Crane for Lifting Containers As we all know, after World War II there was a technological revolution in transportation trade, especially for container transportation. In the mid-sixties container transportation has recei...

ZZHZ HZQ serious honeycomb girder launching gantry is widely used in highway and rialway bridge building projects. Now we take HZQ 50/160 launching gantry as an example....

Notes about Hydraulic System of Hoisting Equipments Cranes and hoists regard hydraulic pressure as dynamic power and there are always all types of hydraulic devices. Therefore, if the operators haven’t comply with relative regulations, no...

Load test of cranes means a trial lifting objects before the crane leaves the factory. A load test could check whether the crane mechanisms work well or not, which ensure smooth and safe working of workers to a great extent. Load test conte...

Some necessary inspection items on cranes in ZZHZ are listed for your reference, they are excerpted from the third-party inspection instructions and totally meet the demand of third-party. (1) Main checking points for main steel structure 1...

Honeycomb type lanching girder is specially designed and produced by ZZHZ to meet the demands of customers and markets. It would be helpful for customers to learn some common points on launching girder before using it. Let us take 50-160 la...

Please follow below steps to install adjustable gantry crane: 1. put joist steel horizontally on the ground, matched flange plate is put to be an angle 80 with the ground; 2. respectively connect support frame A and support frame B with fla...

The new type adjustable gantry crane is developed to meet the daily needs of small equipment handling, goods delivery in the warehouse, material transportation and equipment lifting and maintaining. It could move to all directions, be in qu...

Functions of information management system for beam launcher : 1. functions of testing, displaying and recording running status of beam launcher, including data like overhead trolley longitudinal moving distance, height, overhead trolley la...

Information management system could realize comprehensive monitoring on running status of beam launcher , early warning on many kinds of danger and information management on operation, thus effectively improve safety level and working effic...

During construction, the beam launcher needs to be maintained by replacing quick wear parts regularly. Below quick wear parts table will help us to check related mechanisms effectively. Item Using position specification Quantity Remark Bear...

Reliable welding will ensure the safe use of cranes, while good painting of steel structure will help delay the corrosion progress, thus lengthen its service life as well as maintain a good apperance. About the welding part for cranes, we u...

Wrong operations on beam launcher will lead to serious damage to workers as well as machinery. We shall follow rules and regulations to ensure a safe and smooth construction. Below table gives wrong operations and its damages, please keep i...

HZQD900t single girder beam launcher for tunnel is designed and fabricated by ZZHZ, it could do construction in tunnel as well as in plains. As new developed bridge construction equipment, the complete machine has a 15% lighter weight than...