Almaco Machine Tool Co., Ltd.
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 |
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