The 4 roll plate bending machine is the easiest one, thanks to a frame designed to satisfy every kind of needs. Advantages are various :
★ Pre-bending is highly reduced because the material gets pinched by in between the two central rolls.
★ Working can be made in one only pass, following the steps here below:
1. Squaring
2. Pre-bending
3. Bending
4. Closing pre-bending
★ The plate is fed into the machine horizontally thanks to the support of the lower roll (B) with the side roll (D).
★ The plate is squared thanks to the position that the side roll (C) takes.
★ The space to the limit of the machine reduces to one side only, thanks to the possibility of squaring and bending in one only step.
We advise a 4 roll plate bending machine :
★ For a high and massive production
★ For the possibility to control by NC
★ For the possibility to make conical bendings
Material Yield Limit |
σs≤245MPa |
Max. bending thickness |
16mm |
Max. pre-bending thickness |
12mm |
Max. bending width |
2000mm |
Min. reel diameter with Max. size |
500mm |
Top roller diameter |
300mm |
Bottom roller diameter |
280mm |
Side roller diameter |
240mm |
Bending speed |
4mm/min |
Lifting mode of bottom roller |
Hydraulic |
Control mode |
PLC |
Display of position and displacement |
LCD |
Lifting synchronous precise |
±0.2mm |
Hydraulic system working pressure |
19.5Mpa (MAX) |
Speed of lifting bottom roll |
About 80mm/min/ |
Stroke of bottom roll |
30mm |
Speed of lifting side roll |
About 80mm/min |
Max load of top roll sustainable |
110tons |
Max load of bottom roll sustainable |
90tons |
Max load of side roll sustainable |
60tons |