Spreader refers to the rigid fetching device for lifting and lifting operations, mainly including hook, grab, clamp, sucker and special spreader, etc. Rigging refers to the flexible combined fetching device that is hung on the article when lifting the article. Rigging is used to tie the article and is generally composed of high-strength flexible parts Endless Sling Rigging(wire rope, lifting ring chain, lifting belt, etc.) combined with end rings, hooks, shackles, etc.
The limit working load of the general spreader refers to the large mass (weight) of the item allowed to bear when the single sling is suspended vertically under normal use conditions; Large working load of the rigging: In addition to the use of vertical suspension, there is an Angle between the sling hanging point and the item, so that the force of the sling will change. Endless Sling Rigging The large mass allowed to bear under a specific hanging mode is called its large working load.
The definition of spreader and rigging is different, spreader is one of the industry’s devices and equipment, the common is hook, ring, Endless Sling Rigging oil drum lifting pliers, C-type hook and so on; Rigging refers to the force tool between the lifting machine and the lifting object in order to achieve the object movement, as well as the force member of the space structure. From these definitions, spreader is included in the rigging industry. Here we are going to separate these two categories from the sling, which is a device for picking up goods by tying or hooking them. In essence, there is a difference between a sling and a sling, and the force surface and force length of the sling and the sling are not the same when operating. The large load of the sling refers to the large mass allowed to bear by a single sling when it is hung vertically, but the sling is generally used with multiple strands and more with the sling, and the sling is relatively single. In many cases, there is a certain Angle between the sling and the rigging. Therefore, the force borne by the sling and the sling will often change, so when using it, it is necessary to calculate the force borne by each force point, whether it exceeds the load.
Post time: Oct-21-2022