Carriage Mounted Spreader Bars - This particular type of mast has three sections as the name implies. The outer section is attached firmly to the lift vehicle. The next part telescopes within the mounted exterior part and the internal most section telescopes within the middle section. Both the intermediate and the inner section raise and the lift cylinders extend. Once again in this model, the fork carriage rides within the internal section. The 3 stage mast provides a shorter lowered height as opposed to the 2 stage mast. The common usage of the 3 stage mast is in areas like for example doorways where overhead clearances are restricted. This mast is usually outfitted with a center cylinder to be able to allow the fork carriage elevate several distance before the mast parts begin lengthening.
The 2 Stage Mast includes two parts. The internal section telescopes inside of the external and raises while the lift cylinders extend. The outer part of this particular mast model is affixed to the lift truck. The fork carriage is actually located within the inner section. This particular mast type has a taller lowered height as opposed to an equivalent lift height quad mast or 3 stage mast.
Click to Download the pdf