To change the bending plane, a pusher rotates the tube around its longitudinal axis.ĭegree: Angle in degrees when the tube or pipe bend is formed. The position of the forming-roll defines the bending radius. The profile is guided between bending-roll and supporting-roll(s), while being pushed through the tools. Two more rollers of the same centerline radius as the front clamp roller are on the pressure die assembly. This roller can vary in size compared to the other rollers in the die assembly. Push bending uses a roller on the clamp die assembly with an opposing roller that is placed where the bend die in rotary draw bender is normally placed. This can easily achieve a very large radius bend compared to rotary draw bending. These machines combine hydraulic pressure and localized heat application to accurately bend particularly thick or inflexible materials.ĬNC Push Bender: A style of bending where the bend arm is moved positive a few degrees, then the tube is pushed through a set of rollers create the bend. Within the umbrella of CNC benders, there are induction pipe bending machines. A CNC automatic bending machine can range vastly in size and capabilities. The output of a CNC bender is generally higher than an NC counterpart as you do not have to wait for an operator. It also orients your pipe or tubing relative to other bends or markers to make sure each resulting product fits exact specifications. They use software to map and measure exactly where and to what degree a bend will take place. CNC Bending Machines are fully computer automated. This straight line measurement to the pipe or tubing is the centerline radius you want to bend.ĬNC Bender: Computer Numerically Controlled tube and pipe benders all CNC tubing benders are 3-axis. Measure (in mm or inches) from the center of the tubing or pipe to the center of your drawn circle.Trace the tube or pipe onto the cardboard, continuing the pattern until you have made a full circle.If you have a sample tube or pipe part that you want to bend available, place the tube or pipe that you want to bend on a large piece of paper or cardboard on the floor.Here is an easy way to determine the CLR: It is the distance in mm or inches from the center of tube or pipe curvature to the centerline axis of the pipe or tubing that you will be bending. Here is how Hines Bending defines industry terms.īends Types: 180 degree bends, U-Bends, J-Bends, 1D Bends are terms used to describe bent parts.Ĭenterline Radius (CLR): Is the measurement of the tube or pipe radius that you will be bending.

It is important to define terms in order to understand how to plot an answer when you are bending tube or pipe on a tube or pipe bender.

Aluminum tube bending radius chart