DAVI MCA Four Roll Brochure

E X C E L L E N C E I N F O R M I N GMCAMCA4 rolls machine ???????EXCELLENCE IN FORMINGDDAAVI MCA : THE RIGHT 4 RVI MCA : THE RIGHT 4 ROLOLLS MACHINELS MACHINEFFOR ANY BENDING ROR ANY BENDING REEQUIRQUIREMENTEMENTMCA STMCA STANDANDARD EARD EQUIPMENTQUIPMENTCENTRALIZED CONTROL CONSOLE- Centralized operators console conveniently located at the front of the machine. Includes:On / Off buttons.Emergency stop button.Joy Sticks for all the machine functions:Analog dial indicators to read the position of the side bendingrolls. (EASY PRO Programmable readouts available upon request).Pre-set device of the clamping pressureHYDRAULIC YOKE / DROP END- Hydraulically actuated.- It allows to open the machine for removal of closed shells.- Drop end is equipped with a conical bushing which surrounds the roller bearing mounted to the top roll shaft.SAFETY DEVICES- A multiple safety system stops all the machine movements instantaneously and in safe conditions.- Emergency stop button at the operators console.- Safety Joystick Controls:- Perimeter Safety Cable along the machine sides. If activated, all machine movements stop instantly.- Top grade electric and electronic components that meet industrial safety standards are supplied by world class manufacturers.ROLLSDavi rolls are made of select and certifiedhigh grade forged carbon steel.- The rolls are crowned to compensate for deflection (reduces concave results)- The top roll is replaceable easily and fast (for eventual reduced diameter top roll) as the hydraulic drive is directly splined on the rolls shaft.MCA OPTIONAL EMCA OPTIONAL EQUIPMENT QUIPMENT ( A( AVVAILABLE UPAILABLE UPON REON REQUEST )QUEST )SECTIONAL BENDING ATTACHMENTUsed for rolling flat stock on edge, squares,tees and other symmetrical sections.The attachment includes the required setof hardened, universal, adjustable dies.HDC - HYDRAULIC DEFLECTIONCOMPENSATION DAVI CROWNING (PATENT)It hydraulically compensates the deflectionof the camping rolls according with theplate width and thickness.OTHER OPTIONAL ACCESSORIES- EASY PRO Programmable Digital Readout- Rolls induction surface hardened- Interchangeable reduced diameter top roll- Oil CoolerCONE ROLLING PACKAGE- Cone-shoe-guiding-die- Individual fast tilting of the side bending rolls- The low frame design of the machine makes smaller diameter cones possible.- The return to horizontal position is accurate and immediate; no need to re-adjust or re-set.EXCELLENCE IN FORMINGTETECHNICALSPECHNICAL SPECIFICACIFICATIONTIONE06AAUTUTOMAOMATIONTIONCNC DAVI “SMART-PRO”Recommended to users that need to program assimple as possible single radius parts.This innovative CNC, thanks to its powerful IntelPentium® processor, is selfprogramming,complete automatically, through the “ComputerProgram Mode”any single radius shape (the multiradii parts can be programmed Teach-in or inEditor mode).Memory capacity: 1000 programs (200 in the basicversion);Unlimited number of axis can be controlled(open system);Multiple Serial Ports: two USB, RS232, Ethernet,compact flash slot;Advanced diagnostic: with dedicated softwareand comprehensive trouble-shooting guide;Advanced Tele-service: technical support onlinein real time connecting with Davi Tele CustomerService.The SMART PRO is available also in the reduced"BASIC" version, the entry level model, that doesn'tinclude the COMPUTER PROGRAM MODE.CNC DAVI “LEONARDO®”The New Leonardo®, is the mostadvanced CNC available today in the plate rollindustry.Its powerful Intel Pentium® processorself-programs itself full automatically (throughComputer Program Mode) to roll either singleradius than multi-radii parts (like oval, buckets,round-square, etc.)It allows to import .dxf files directly from the office,and carries a real CAD station onboard.Package CAD-Creator-3D installed on-board,that allows the operator to designparts and roll them automatically (CAD-CAM);Memory capacity up to 5000 programs;Unlimited number of axis can be controlled(open system);Multiple Serial Ports: two USB, RS232, Ethernet,compact flash slot;Advanced diagnostic: with dedicated softwareand comprehensive troubleshooting guide;Advanced Tele-service: technical support onlinein real time connecting with Davi Tele CustomerService.EXCELLENCE IN FORMINGA COMPACT MACHINEFOR BIG JOBSWHY CHOOSING A 4 RWHY CHOOSING A 4 ROLOLL DL DAAVI “MCAVI “MCA” ?” ?WHY CHOOSING A 4 RWHY CHOOSING A 4 ROLOLL DL DAAVI “MCAVI “MCA”” 1) The flat end is the shortest(excellent prebending) thanks to the two centralrolls that can take the edge to the shortest andprecise tangent clamp.2) Single Pass SequenceThe entire shell could be finished in one pass only,including prebending of both edges.One only side roll position, one only automaticsquaring, and no plate handling required at all.3) SquaringAutomatic and instant squaring of the plateagainst the back roll (serves as a real hydraulicback-gauge).4) Plate TransferPlate is always hydraulically pinched in betweenthe 2 central rolls, thus providing constant andnears perfect positioning.5) High automation degree - High productionSquaring, pre-bending and rolling can be made,on the MCA, whilst keeping the plate alwayshorizontal at the feeding:The possibility to use the optionals gantry loaderand an in-feed conveyor (together with theHI-TECH DAVI's CNC) makes the MCA the bestsolution to improve productivity, by shorteningthe cycle time and reducing the hand workneeded for the plate handling.The MCA becomes more then a simple rollingmachine, the ideal solution to roll big quantitiesin the shortest time.6) ConesThe 4 roll geometry helps toroll cones, as the bottomclamping roll can betilted and clamps theback edge of the plate(at the large diameterof the cone), feedingfaster its longdevelopment. The “coneattachment”, at thecontrary, guiding the shorter edge of the plate(at the tight diameter of the cone) to slightlyrotate according with the come geometry, slowsdown the feeding of its shorter development.Side rolls must be tilted to form the cone at its rightgeometry. Davi 4 roll have, as standard feature,the electronic bottom clamping and side rollstilting, up to a level substantial higher than thecompetition (Davi exclusive and benefit).7) CNC Applications4 roll is the most suitable machine for CNC: instantautomatic squaring: reliable “start” position, idealto be CNC programmed, as positive mechanicalreference. The feeding of the plate is guaranteedby the hydraulic permanent clamp of thepinching rolls ensuring a constant, accurate andsure control of the position of the plate. Singlepass bending process: the simplest to be CNCprogrammed.A CA COMPOMPAACT MACT MACHINECHINEFFOR BIG JOBSOR BIG JOBSTHE FIRST DIGITTHE FIRST DIGITALALRROLLING MAOLLING MACHINESCHINESWHY CHOOSING A 4 ROLL DAVI “MCA” ?EXCELLENCE IN FORMINGTHE FIRST DIGITALROLLING MACHINESWHY CHOOSING A 4 RWHY CHOOSING A 4 ROLOLL DL DAAVI “MCAVI “MCA””WHY CHOOSING A 4 RWHY CHOOSING A 4 ROLOLL DL DAAVI “MCAVI “MCA” ?” ?THE FIRST RANGE OFDIGITAL ROLLINGMACHINESDigital technology(100% reliable)Easy trouble shootingTeleservice OnlineSWINGING GUIDES DAVI “PSG”(1988 Davi patent on 4 roll machines):The PSG system is based on theside rolls movement that is“hinged” on a strong centralpin,the movement istherefore a circularmovement around thiscentral hinged point,without anylinear friction.STRUCTURE OF THE MACHINEThe natural external reactionof the plateduring bending is “held”inside the structure.This allows the machineto have a “compact”and less obtrusivestructure, while at thesame timemaintainingits strength and rigidity.SMALL DIAMETER SHELLS“Wrapped around” while “pressed”against the top roll,on a longer plate sectionthan on the linearguides, reducingthe natural materialspring-back(”re-opening”)effect. Much smallerdiameter shells (and cones) areachievable (up to and evenless than 1.1 times the top roll diameter), thismeans a 30% advantage in minimum diameter,when compared machines with linear guides.NO LubricationABSOLUTE BEST PREBENDINGThe side bending roll "rounds" the edge of the platestarting their stroke from a slightly more externalposition, swinging up, during the raising phase,approaching toward the top roll: The plate edge istherefore "pre-bent" with the benefit of a higherleverage arm, getting more strength on thematerial to be formed, more prebending power,reducing substantially, almost to disappear, theremaining flat end.NO DEFLECTIONUsing the “PSG” systemhas enables the machineto “hold” the tractionforces inside the structure,without any outsidedeflection.STRENGTH ANDPRECISION WITH NOFRICTIONThe rolls movement isrigid and stable but at thesame time “round”and fluid, the lack of frictionallows absolute accuracy. Originally born from theconcept of high precision planetary gear drives,that concept has today been adopted by allmodern hightech rolls manufacturers (e.g.Scandinavian and German) and on nearly allreputable brands of section benders.DAVI SWINGING GUIDESThis technology nearly eliminates the slippingsliding friction for side rolls movement.Maintenance freeSwing guides are not damaged by the mill-scale.Premature wear due to the lack of regularmaintenance is eliminated.They extend the life of the machine andincrease its value over time.E X C E L L E N C E I N F O R M I N GPROMAU S.r.l.Via Civinelli 115047522 Cesena (FC) ITALYTel. +39 0547 319611Fax +39 0547 317850e-mail:davi-sales@davi.comweb:www.davi.comTETECHNICAL SPECHNICAL SPECIFICACIFICATIONTIONMateriale pubblicitario realizzato in collaborazione con Regione Emilia-Romagna - Assessorato Industria e ArtigianatoEN06/07DAVI partnerMCARollwidthRollingthicknessTop rolldiameterBottomclamping rolldiameterElectricpowermm mm mm mm mm HP2017 2050 7 4 170 160 5,52019 2050 9 6 190 180 5,52020 2050 11 8 205 190 102024 2050 16 13 240 230 152520 2.550 8 6 200 180 5,52522 2.550 10 8 220 200 102527 2.550 15 12 270 250 153017 3.100 6 3 170 160 5,53020 3.100 7 4 200 180 5,53022 3.100 9 6 220 200 103028 3.100 14 10 280 260 153030 3.100 15 12 300 280 15Prebendingthickness* The above mentioned capacities are based on mild steel with max 60,000 Psi UTS (Ultimate Tensile Strength) and 36,000 Psi as YIELD (Elastic limit), and with the understanding thatparts are formed in multiple passes to a diameter equal or larger than five times the top roll diameter. Tighter diameters can be achieved by reducing material thickness, width or tensilestrength. On different materials, capacities may vary from our standard.© Copyright June 2007 - The manufacturer reserves the right to modify characteristics, shapes, specifications and other information here included without prior notice** Promau manufactures machines of all types and dimensions which, due to lack of space, cannot be published in full. Upon request, offers can be drawn up for machines of allperformance levels; Promau in fact has the technical, design and production expertise to cope with any bending application.