ماكينة درفلة SSI Schäfer SVRM

Type: SVRM 4R - Linear
4 rolls individually hydraulicaly driven = no slip
hardened rolls
6 digital readouts
conical bending
smallest diameter of cone is 1100 mm
with the toproll you can process both thin and thick plates
max speed: 7,5 m/min (variable speed)
High accuracy machine because it uses linear guides for the side rolls
which means that the side rolls cannot deflect in any way! (new machines are no
longer manufactured with linear guides due to high costs
instead planetary
guides are used which are inferior)
Machine is equipped with backload feature gt
a tilting cylinder which is
connected to the top roll
this allows the operator to apply upwards or
downwards backload to the toproll to counter act deflection of the top roll –
incredibly rare feature!
Machine is equipped with a shock absorber system which is useful to calibrate a
rolled workpiece after welding. With this shock absorber system the machine is
able to handle the seam resulting after welding. When rolling the part and the seam passes between
the top and bottom roll the shock is not transferred to the bearings and the
machine is not overloaded
During the rolling process all other hydraulic movements can be executed at the same time
2 hydraulic plate support systems (left and right) for rolling large diameter workpieces
hydraulic vertical topsupport to support sheet during rolling
max diameter of workpiece with this support is 6300 mm
Number of rolls: 4 rolls
Roll capacity cold: 4050 x 40/50/60 mm
Roll dia upside: 560 mm
Driven rolls: 4 rolls hydr driven
Power needed: 110 kW
Pre-bending : yes