Three Roll Fix Axis - Plate Bending Machines

plate bending machine - Autotrans Systems
plate bending machine - Autotrans Systems
plate bending machine - Autotrans Systems
plate bending machine - Autotrans Systems
plate bending machine - Autotrans Systems
As shown the machine is most suitable as a replacement to conventional plate bending machine where pre bending is done manually or on press machine outside and then inserted to machine for rolling purpose. The machine is most economical model among all plate bending machine and is most useful for small fabrication shop as well as the shop having separate press machine on which pre bending can be carried out. Since this is a rolling only machine all the power is available for rolling purpose and one can roll smallest possible diametrer for heavy thickness plate material. The same machine can also used for plate straightening machine for small left over rolled material which is to be reused after straightening. Also rerolling is easily possible in this machine which enables apple effect correction and out of roundness correction to make it a perfect circular shape to component.
plate bending machine - Autotrans Systems

The machine frame is built from all tested steel plate material and the same is subjected to stress releaving, sand blasting and epoxy primer painted for corrosion free long lasting machine life. The complete body is machined in cnc machine to achieve built in accuracy.

plate bending machine - Autotrans Systems

The control desk is conveniently located on the machine and all functions like roll pressing, roll rotation, conical bendig attachment movement, and drop end can be controlled / performed from the same desk. A single person can easily handle the machine till complete rolling of plate is done.

plate bending machine - Autotrans Systems

A strudy and robust drop end made out of tested steel rolled plates is designed to give ease and convenience of function. The opening between top and bottom roll is maximum in this type of machine which makes it most convenient to remove rolled shell from machine without any hurdle.

plate bending machine - Autotrans Systems

The top roll can be tilted to great degree of inclination making it most convenient and ease to remove rolled shells without any difficulty.

plate bending machine - Autotrans Systems

A heavy duto hold mechanism ensure perfect horizontal poison of roller when drop end is open and is in releases position for removal of rolled shell. Also the bottom rolls are driven with the help of planatory gear box and hi torque generating hydraulic motors coupled in line with the rolls avoiding any secondary transimittion gear train and thus eliminate wear and tear ,transmission losses and need of continious lubrication (common in conventional machine) Due to minimum no of parts required to drive rollers the need for spares is minimized.

plate bending machine - Autotrans Systems

A dual cone bending device are provided as shpown The device provided between bottom rolls is used for cone rolling with narrow smaller diameter of cone. The device provided on outer place is more usuful for cone with comparatively bigger diameter on smaller side of cone. The cone bending attachment on frame is more usefull for bigger diameter cone rolling.

plate bending machine - Autotrans Systems

The best in this type of machine is "Y" support which supports bottom rolls from inside and outside to resist bottom roll from deflection under heavy pressing load from top roll Also a longer bottom roll support prevents any scratch marks on roller due to more area in contact with roll and due to less force per area. The support rollers are mounted in heavy duty bearings to eliminate / reduce friction between rolls.

plate bending machine - Autotrans Systems

A specially designed heavy duty section bending attachment can be provided on request. Section like angle, channel, beams, pipes of flat section can be rolled with ease. The average capacity is about 30 % higher than any other such machine in market.

plate bending machine - Autotrans Systems

A dual cone bending device are provided as shown. The device provided between bottom rolls is used for cone rolling with narrow smaller diameter of cone. The device provided on outer place is more usuful for cone with comparatively bigger diameter on smaller side of cone. The cone bending attachment on frame is more usefull for bigger diameter cone rolling.

Standard Equipments

plate bending machine - Autotrans Systems

For all our machines we use bearings to eliminate frictional loss in power transmission. Other machines in market using bush as resting media are most in efficient since lot of power is wasred in over comoing loss due to positive frictiob between roll and bush.

plate bending machine - Autotrans Systems

Hydraulic system for all our machine is designed to deliver the ultimate force and torque for the applied electrical power.The power pack is specially designed for plate bending machine application.

plate bending machine - Autotrans Systems

The very basic machine is provided with simple control panel and manual hydraulic control for a small fabrication shop. The other control can electrical with push button and joy stick for more vease of operations. The advanced machine can be provided with PLC and HMI to automate the the regularly required rolling needs.

plate bending machine - Autotrans Systems

Small and medium diameter conical shell with heavy thickness can easily be rolled in this machine which other wise not easily possible in other machine.

plate bending machine - Autotrans Systems
plate bending machine - Autotrans Systems

Standard Featues

  • Both the bottom rolls are driven rolls
  • All rolls are mounted on heavy duly ball bearing .Total 4 bearing per roller
  • Fully hydraulically operated machine requires less input power compared to electro hydraulic
  • Separate digital roll position meter for each side of roll makes it easy to maintain parallelism between top and bottom roll
  • Extra heavy central support with bearing to resist point load on roller and for longer roller life
  • Hydraulically operated drop end frame for ease of job removal
  • A single person can operate the machine while rolling

Optional Features

  • Hardened rolls up to 52-55 RC
  • Tilt able top roll for ease of removal 0of duly rolled shells
  • Cone bending arrangement between bottom rolls for smaller diameter cone rolling
  • Extra heavy cone bending arrangement on frame for bigger diameter cone rolling
  • Electrical control panel with moving trolley for all around access to operator
  • PLC controls for automatic bending and rolling
  • All 3 rolls positively driven for thin material rolling
  • Extended shaft for section rolling die mounting for rolling of section like angle, channel, beams, flats, pipes, bar etc.

Advantages

  • Specially developed low cost economical hydraulic systems a perfect machine for small engineering work shop
  • Since the top roll is moved with hydraulic pressure the rolling defect like ovality,apple effect correcion is easily possible.
  • Due to more power available by hydraulic systems the cycle can be completed in single pass or with minimum no of passes reducing overall operation timefor rolling.
  • Variable speed of rolling for slow speed for heavy plate thickness rolling and vise a versa.
  • Only single person can operate machine after plate feeding and up to rolled shell removal.
  • Small engineering workshop willing to invest less still automate rolling .
  • Open type rolling requiring mass production qty.
  • Can use as a straightening machine for pre formed material for reuse
  • Can use where different operations like pre bending, rolling, material straightening ,Conical rolling, section rolling need to be carried out in single machine.

Application

  • Railway: water tank, tankar, coach bogie wall profile bending/rolling Automobile: silencers, fuel tanks, mufflers',
  • Offshore: drill rings
  • Storage: silos,tanks,
  • General engineering: Pressure vessal,boiler, tanks, piping, filter body
  • th moving: Excavator bucket, road roller drum, mobile compactors