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Zhengzhou Unique Industrial Equipment Co.,Ltd.
ADD: No.5 Building , Jincheng International Plaza, Nongke Road, Zhengzhou City, Henan Province, China.
E-mail: sales@unique-cons.com
Tel: +86-371-65829915
Fax: +86-371-63935058
Zip Code: 450002

  • Accidents of Tower Crane 2013/3/20 According to the “Tower Crane Operation Regulations” specified "dismantling workers must know the details and strictly according to the specifications as stipulated in the installation and removal procedures in the operations, it is strictly prohibited to product specified in the instructions for dismantling program do any changes", "jack-up tower crane lifting tower body, according to the manual regulation, make tower crane in the ...
  • Preparation Before Installation for Construction Hoist 2013/3/13 Preparation before Installation for construction hoist 1. Make sure that there is power supply on the erection place. Provide a power box specialized for the hoist and a switch for each cage. Fuse current see technical data.2. The distance between transformer substation and the main power of site should be no more than 30m.The section of cable should be more than 4×25 mm2 and be increased with the distance increased.3. Make sure that there is the lifting eq...
  • How to Use and Maintain Tower Crane? 2013/3/11 1. Crane driver, Command Division Sok staff must be certified, strictly enforce the tower crane maintenance, use and safety procedures, operating without a license is prohibited. Comply with the rules and regulations of construction site safety, civilization accident.2. The tower crane must have good electrical grounding, when lightning it’s forbidden to walk around in the vicinity of the chassis.3. The tower crane Operating temperature is -20 - +40 ℃. The ...
  • Safety Requirement for Construction Hoist 2013/3/5 1. The operator of building hoist must be trained so that he is familiar with the operation of the hoist and the function of all parts.2. Never operate the hoist when wind speeds exceeding 20m/sec and the foul weather condition.3. Never operate the hoist when mast and cable are frozen.4. No obstacles in the hoist way.5. Make sure that all parts of the hoist are complete.6. No accumulated water in the foundation.7. Keep the cage of the construction hoist clean.8. Make...
  • Overview of the tower crane design 2013/1/30 With the continuous development of the reform and opening up and modernization has entered a new phase, the growing demand for tower crane. In the early 1950s, China tower crane started by imitation. The 1960s, due to the development of high-level, high-rise building, the widespread use of climb of internal and external attached tower, and uses state-of-the-art technology in the work of institutions, such as DC motor speed control SCR speed, eddy current brake, insta...
  • Trailer pump open systems 2013/1/29 In Trailer pump open system in different ways according to oil generally divided into two dual system of open, double-pump dual system and open a single pump. Open system hydraulic pump back to the tank from the fuel tank oil absorption, oil return.Currently on the market Tuobeng gradually increased displacement, displacement hydraulic pump required, to provide power to the hydraulic pump motor power will be relatively large, the power grid with load startup limiting...
  • Building hoist use security 2013/1/28 A broken rope building hoist less chance hoists, the counterweight box consists of four mutually independent wire rope traction, four wire rope fracture probability is very small.Not hoisting the upper and lower limit failures, ceiling hoists, the counterweight touchdown, wire rope hoists will not continue upward friction reducing, preventing hoisting accident occurred, the rope can not mess rope.Four traction wire rope with fracture, hoists top diagonal loaded two i...
  • Tower crane PLC control system 2013/1/27 The system tower crane control system controlled by the relay instead PLC control the four bodies governor VVVF tower crane hoisting, luffing, slewing, run the motor needs to run independently, the entire systemby six electric motor and inverter drive, use a PLC to control them.The starting time of the run institutions should try to meet the actual needs, starting quickly and smoothly; electrical braking mode of the institutions must focus consideration of different ...
  • Tower crane foundation special circumstances treatment 2013/1/23 The first walk after fixed attached.The tower crane amplitude range can not cover the entire building length, and the local height of the building exceeds the height restrictions of the tower crane walk freely, can be used to advance had gone fixed attachment construction law. To this end, in addition to along the building according to the conventional practice of laying track basis should be fixed in the tower crane construction late attached position, the bottom of...
  • Trailer pump assembly process control points 2013/1/21 Trailer pump hydraulic system cleanliness --- cleaning of the internal surface of the fuel tank to be thoroughly cleaned after the assembly process to keep clean, especially in the missing pieces to the oil port managed to seal (the workshop dust too), pipe fittingsfitted immediately after the seal oil port and general pipe fittings with plastic cover, do not throw away (pump and valve block throughout the pipe joints should also be the case).The direction of one-way...