Description

DAVI MCA 3028 – Year 2012

Capacities:

Working in Standard “Rolling” Mode; capacities:
Width of plate: 3000 mm
Yield point: 260 Mpa
UTS Strength: 400 Mpa
Internal diameter: 1400 mm
Plate thickness: 14 mm

Working in Standard PRE-BENDING Mode; capacities:
Width of plate: 3000 mm
Yield point: 260 Mpa
UTS Strength: 400 Mpa
Internal diameter: 1400 mm
Plate thickness: 10 mm

ROLLS
Number of rolls: 4
Rolls Length: 3100 mm
Rolls diameter: Top roll 280 mm less deflecting thanks to PSG technology
Bottom roll: 260 mm
Side rolls: 200 mm
Smallest possible diameter: 308 mm
Rolls material: High tensile, forged, heat treated, tested & certified Carbon Steel
Rolls resistance: R= 620 – 750 N/mm2
Rolls basic hardness: Brinell = HB 180 – 230
Rolls hardened (on request): induction, up to 45-62 HR Rockwell C, (depending on application and materials)
Crowning: 2 clamping rolls (top and bottom) crowned to compensate for deflection.
Customized crowing available on request.

ELECTRIC
Installed power: HP 15 Power Saving Technology
Power supply: 400 Volts, 3 phases, 50Hertz (Others available upon request)
Console All the operating devices are centralized on the industrial console, on wheels
CNC DAVI CNC (different options are available, as detailed later on this quote)
Side Rolls Position gauge 4 Digital displays, on graphic screen, with an accuracy of 0,1 mm
Bottom Roll Position gauge Digital displays, on graphic screen, with an accuracy of 0,1 mm

MOVEMENTS
Rolls Guiding: “Planetary Guides” (Friction-Free, Mill-Scale-Proof, Lubrication-Less).Hydraulic,
protected by overload protection system, on Exclusive Patented
Rolls movement: Hydraulic, by mean of chromium plated largely dimensioned Hydraulic Cylinders

Side Rolls Tilting
for cone bending: Hydraulic powered, electronically controlled, in “cone” direction, up to more than
100 mm (the most , ever – 2 to 4 degrees – ), to help on rolling cones, easier, even
with great angles
Side Rolls “Counter-Cone”
tilting to correct defects: Hydraulic powered, electronically controlled, in “Counter-Cone” direction, up to
more than 100 mm (the most , ever – 2 to 4 degrees – ), to correct cans with
different diameters at the two ends
Plate Clamping pressure: Managed by the operator, on the console screen, pre-settable to be optimized for
any thickness. Electronically selected and (safely) monitored by the CNC.
Drop-end Tilting: Hydraulic, to “release” the top roll front frame, to allow to tilt it