The role of wiper die of pipe bender
Home » News and Events » Hydraulic Pipe Tube Bender » The role of wiper die of pipe bender

The role of wiper die of pipe bender

Views: 1     Author: Site Editor     Publish Time: 2022-10-17      Origin: Site Inquire

The role of wiper die of pipe bender


When it comes to bending and wrinkling of pipes, the first reaction is the mandrel of bender pipe. In fact, there is another component: Wiper die. In the bending process, Wiper die should be coated with an appropriate layer of oil. But too much or too thick oil can still cause wrinkles in the area. In the use of wiper die at the same time, often use mandrel. The mandrel is used to keep the pipe from collapsing after it leaves the support point; The wiper die prevents wrinkles from forming when the pipe is bent. It works with the mandrel for better results. Some customers find that the arc of the pipe is deformed inside after bending or pushing the pipe. This is the problem caused by the lack of wiper die or the wrong installation position of pipe bender. Figure 1.


Figure 1 Bending and wrinkling of pipe

Figure 1 Bending and wrinkling of pipe


The shape of the wiper die is very important. The groove through which the pipe slides should be slightly larger than the outer diameter of the pipe. The value can be 10% of the wall thickness. The pipe should also be polished to prevent scratches.


   The front end of the wiper die should be made very thin, so that it extends to the cut point of the bending die. If it is far from the cut point, it will lose its effect. If it is beyond the cut point, it will cause pipe extrusion because it is higher than the bending die. When installing and adjusting the wiper die, it is best to clamp the mandrel and the clamping die. At the same time, the pressure of the die of pipe bender hydraulic should be adjusted appropriately.

Product Category

Inquiry Now
Nanjing BLMA Machinery Co.,Ltd is a leader manufacuture of CNC metal sheet and tube processing equipments.

Quick Links

Product Category

Contact Us

    Sales : Andrew Xia
   E-mail : andrew@chinablma.com
    Mobile/Wechat/Whatsapp :
       +86-19556628578

Tawk.to - Online

Copyright  1987 -2022 Nanjing BLMA Machinery Co., Ltd. All rights reserved.