14
March
HZQ40/160 walking type bridge girder launcher is a new type bridge construction crane developed by ZZHZ to meet the market demand, ...
13
March
1.measuring insulation resistance of overhead crane power line and control circuit to the ground
and phases shall not be < 0.5 MΩ, the value can decrease 50% in the humid area, after it connects with all electrical equipment lines.
...
13
March
When we choose the gantry crane’s matching block who must pay attention to the electric hoist’s basic parameters and quality. ...
12
March
As installing bridge girder launcher but the guide beam suspending in the air, main girder has a larger stress at position of rear middle support leg, max stress 204.7Mpa < allowable stress 240Mpa, ...
12
March
1.1 MGHZ80/10-27-15 gantry crane drawings, layout of construction field.
1.2《GB50278-2010 Lifting equipment installation engineering code for construction and acceptance 》；
...
11
March
The whole overhead crane is made up of two end girders ,two main girders ,trolley and crane assembly; ...
11
March
1、after the installation of gantry structure is finished, the diagonal error of gantry's four pivot points should ≤ 5mm. ...
09
March
Environment temperature : -20℃～+40℃
Working system: intermediate JC25%
Heavy class: JC40%
...
09
March
The overhead crane is used for lifting melt metal , high temperature substance and other places in metallurgical industry, because the melt metal belongs to the high temperature product, we must pay attention to the following contents: ...
08
March
Steel rope is the most widely used flexural member in the bridge girder launcher, but it is used in kinds of working place frequently, the steel rope breaks easily to make fatal accident or serious trouble. In case of the steel rope break, we need to find the broken reason: ...
08
March
The brake device plays a very important role in gantry crane’s operation to make sure cranes can run correctly and safely. And the collocation of brake device can decide the working life and operating safety. So we choose the brake device from type, specification and environment etc. ...
08
March
In order to finish the girder lifting successfully , when using the crane to lifting box girder , we must adhere to the process flow,. ZZHZ has very rich installing experience , the matters need attentions are following: ...
08
March
4. when lifting, in case of swing of steel box girder is too big, we often adopt the transverse girder by manual hoist to control them. ...
06
March
The block is a small lifting tools which is widely used in the hoisting machinery, it and steel rope wind together with winch for lifting weight. In order to prolong the block’s life, we need to do the following steps: ...
06
March
Working condition 6: in the normal working condition, trolley lifts rated loads at side of flexible support leg, and crane moving system brakes ...
05
March
Working condition 1: in the working condition with no wind, gantry crane does not move, trolley lifts rated loads at mid-span; ...
05
March
After knowing the working principle of electric hoist , the maintenance of electric hoist is an important content we must know. ...
04
March
With the upgrading of industrial automation, the frequency converter is widely used in it. The frequency converter has a lot of protection function such as overcurrent,overvoltage and overload protection etc. ...
04
March
With the upgrading of industrial automation, the frequency converter is widely used in it. The frequency converter has a lot of protection function such as overcurrent,overvoltage and overload protection etc. ...
04
March
Electric hoist is a kind of small and light lifting crane with small volume, light weight, simple operation and convenient using. According to the correct steps to install the electric hoist to make sure the safety of electric hoist. ...
Products Categories
- Gantry Crane
- Bridge Girder Launcher
- Movable Support System
- Overhead Crane
- Shotcreting Machine
- Cinder Scraper
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