CNC Plate Bending Roll
Year 2021
Approx. 100 hours
Number of Rolls 4
Rolls length 10’ 2”
Top Roll diameter 18.2” – less deflecting thanks to Planetary
Guide Technology
Bottom Roll Diameter 16.6”
Side Rolls diameter 14.2”
Smallest possible diameter 21” thank to planetary guide
technology
Rolling Speed 20 ft/min (imperial)
Installed power HP 72 (Energy Saving Technology)
Power Supply V., 60 Hz
Rolls material High resistance, heat treated, tested & certified
Carbon Steel
Rolls Hardening Induction surface up to 48 – 62 HR Rockwell C,
according to
Customer’s application and rolls materials
Rolls Periph, Speed compensation Automatic (no torque loss, no
operator setting needed)
Rolls Crowning Top and lower (clamping) rolls are standard crowned to
compensate
Rolls deflection
Rolls guiding Friction-free, mill-scale-proof, lubrication-less
planetary guides
Roll position Linear transducer with an accuracy of 0.004”
Type of bearing on rolls Self-aligning heavy duty double crown
spherical roller bearings
Servo-Tronic (Davi patent) Two independent but integrated parallel
systems to prevent
Rolls parallelism down time in case of electronic bug (virtually never
fails)
Rolls rotation Drive (Davi Exclusive) Both Clamping rolls are driven
in rotation as standard feature
RE-Rolling drive system High speed top roll rotation during re-rolling
as standard feature
Transmission drive (Davi Exclusive) Stress-less transmission” both
hydro-motors are free to tilt to
Absorb the rolls deflection and for cone rolling
Wiring System (Davi Exclusive) Roll-by-wire digital technology:
faster, more accurate and reliable
Rolls Tilting for cone bending(Davi Exclusive) More than 4” for
easier cone bending, electronically controlled (based on 120” and
longer rolls.
Plate Clamping hydraulic pressure Electronically Pre-settable for any
thickness
Actuation of yoke & top roll tilting Hydraulic wide opening, for
easier remove of closed shapes
Rolls rotation hydraulic brake Included
Multiple overload safety system Included, through multiple check
hydraulic valves
Approximate Dimensions 248 x 91 x 95
Weight 48,504 lbs
Equipped with:
New extra roll
Up to 13, 200 lbs capacity, 135 max. Diameter Hydraulic overhead
Support
Up to 6,600 lbs fron/rear/ framed support
16.1 crowned for .500 material in A516 Gr 70 with a yield of 50 KSI
and UTS of 70 KSI 0 interchangeable top roll
USA
