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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

  • The Mast Sections of Tower Crane 2013/6/4 The mast sections is a important part in tower crane.1. Design the drawing of the mast section2. Raw material selection3. Cut the steel by using numerical control plasma arc cuffing4. Welding stage(adopts the mast sections and main chord welding robot)1) Welding the connecting sleeve to the main limb by carbon dioxide arc welding, the connecting tooled groove welds and prebored holes in advance. Inspection after welding.2) Machining the ends of the main limbs with mi...
  • Tower Crane Metal Structure Repair and Maintenance 2013/5/28 1. Strict implementation of the tower crane steel structure end-of-life standards.The main force structure should be checked metal fatigue strength, weld cracks, deformation, damage and so on, the main force structure weld metal and heat affected zone of the base metal should be checked, if found abnormal, should be processed. 2. The structure of the check should be carried out according to the following procedure.(A) Daily inspection: tower crane every 80 hours shou...
  • Tower Cranes Installation and Classification 2013/5/20 Classification of tower cranes:1. Divided according to whether there is the running gear, fixed and operating style;2. Divided rotary tower structure under rotary attaching itself into three categories;Change divided, trolley-style, the boom luffing folding boom luffing three categories;3. Divided by lifting weight , there are three types of light, medium and heavy-duty.Tower cranes assembly procedure:Base → Install chassis → Install foundation sect...
  • Classification of Anti-falling Safety Device 2013/5/17 1. Instantaneous safety device: Used for wire rope traction2. Progressive safety device: Applied to the rack and pinionProgressive safety device structure:Safety device is of the construction lift cage anti-fall safety device, its role is to restrict the cage to overspeed to prevent and eliminate hoists fall accidents.Progressive safety device technical requirements:1. Security validity period not exceeding 1 year.2. Security, whether used or not, in effective inspec...
  • Concrete Pump 2013/5/9 For special requirements of high-speed railway highway construction at home and abroad, Unique developed a new type of concrete pump.Precast concrete box girders of high speed rail has 32 meters and 24 meters two kinds, mainly in 32 m box girder for example, each weighing 900 tons, 325 per need above C50 high strength concrete cube, the viscosity of concrete, slump is small, difficult to pumping, and not interrupt when pouring, must be continuous operation, in 6 hour...
  • The Preparatory Work Before Tower Cranes Installation 2013/5/5 Tower cranes are used to make the air transport equipment, work to get everything ready in advance to ensure smooth progress of the tower crane installation, have no an accident. Tower crane installation has a certain degree of risk, requires installation qualified unit for installation. According to UNIQUE several years experience in installation of tower crane, now share with you about our preparation work.The preparation before tower crane installation mainly by f...
  • How to Install Tower Crane 2013/4/26 Before install tower crane needs a truck crane of 20T, properly coordinated to the installation and assembly steps of tower crane, and can minimize the use of crane time and increase utilization efficiency.1. Installation of tower crane work, the wind scale is less than level 4 (wind speed is not more than 12m/s).2. During the installation or removal process, the staff member shall wear a helmet, high attack job site should wear non-slip shoes, wear a seat belt.3. Ta...
  • Maintenance of Hydraulic Climbing System for Tower Crane 2013/4/17 1. Strictly add and change oil according to lubrication table of tower crane, and clean the tank interior.2. After adjusting the pressure of overflow valve, shall not be arbitrarily changed, each time before making the climb, oil pressure gauge to check the pressure is normal.3. Should regularly check all fittings of tower crane are fastened tightly, no oil leakage. 4. Regularly check for oil filter of tower crane whether is blocking, check safety valve adjusting val...
  • How the Tower Crane is Self-raising? 2013/4/10 A lot of people don’t understand how the tower crane is elevated itself, in fact, it is actually very simple, it is has one set of jacking frame. When jacking up,the frame rise high first, when it is higher than the tower body, there is a space in the middle of tower body and frame. then the standard section of the tower is installed on the inside of this space. The set of the frame is elevated again; the standard section is installed into the set of frame....
  • Knowledge Adout Construction Hoist 2013/4/8 1. SC construction hoist rely on the elevator rack and pinion, mainly used in the construction of high-rise buildings, the transport of goods. This elevator can be very convenient to achieve self-installation and removal, and with buildings’ increase increased.There are two kinds: Single cage and double cage construction hoist: if adding a cage and other parts,single cage lifts can become a double-cage hoist.2. Height of 0 to 90 meters speed frequency const...