Metal Roller

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Metal Roller
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Metal Roller

The metal roller sends sheet metal and plate through gaps between cylinders to roll-bend them; this operation is used for producing cylindrical or conical components as well as wiring cylindrical edges.

This roll-bending operation ability is particularly useful for producing standard shapes of metal that would be time-consuming or impossible to form otherwise.


Metal rolling is a centralized industrial process that is done in large-scale (kiloton per day) steel mills. We aim to open-source this technology for use in small-scale (ton per day) flexible fabrication facilities which allow local communities to produce virgin metal from scrap feedstocks.


One type of metal roller uses a pinch rolling operations (lightly grips and moves sheet metal through the machine with a "free" roller to "set" the required bend radius) and pyramid rolling operations (moves plate metal through the machine to "set" the required bend radius). A hydraulically power-driven universal metal roller can be used for all required roll-bending operations.

Solution Statement[edit]

The metal roller allows the operator to perform roll-bending operations with ease.

Product Ecology[edit]

Made with



  • Rolled Steel
General Fabrication Product Ecology

See Product Ecology for more information.


The principal elements of the metal roller include:

  • Frame: the ground-supported structure upon which the rest of the metal roller lies
  • Couplers: the mechanisms that convert rotary motion from the hydraulic motor to the cylinders
  • Hydraulic Circuit: the set of components that powers the hydraulic motor by sending pressurized fluid through its ports, hence producing rotary motion at the motor shaft
  • Adjusters: the mechanisms that allow cylinder movement for different placement configurations on the plane perpendicular to the axis of rotation
  • Cylinders: the components that make actual contact with the workpiece for roll-bending.


The Metal Roller is currently in the research phase of development. Prototyping is planned for after product release of the Induction Furnace.

See Also[edit]

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Bakery Oven Dairy Milker Microcombine Baler
Industry Multimachine Ironworker Laser Cutter Welder Plasma Cutter
CNC Torch Table Metal Roller Rod and Wire Mill Press Forge Universal Rotor
3D Printer 3D Scanner CNC Circuit Mill Industrial Robot Chipper Hammermill
Drill Press Induction Furnace
Energy Power Cube Gasifier Burner Solar Concentrator Electric Motor Generator Hydraulic Motor
Steam Engine Heat Exchanger Wind Turbine Pelletizer Universal Power Supply
Nickel-Iron Battery
Materials Aluminum Extractor Bioplastic Extruder
Transportation Car Truck

Imprimante 3D Scanner 3D Extracteur d'Aluminum Pelleteuse Four à Pain Presse à balles de paille Extrudeuse à bioplastiques Bulldozer Voiture Presse BTC Betonnière Broyeur à marteaux Imprimante de circuits électroniques Table de découpe numérique Trayeuse Perçeuse à colonne Moteur électrique Gazogène Faucheuse Râteau à foin Moteur hydraulique Fourneau à induction Bras robotisé Poinçonneuse Découpeur Laser Laminoir à plaques Microcombine Microtracteur Multimachine Batterie Ni-Fe Machine à granulés Torche plasma Power Cube Presse hydraulique Laminoir à barres et fils de fer Pulvérisateur de terre Scierie Semoir Concentrateur solaire Roto-bêche Moteur à vapeur Echangeur de chaleur Tracteur Fraiseuse de tranchée Camion Alimentation électrique universelle Rotor universel Poste de soudure à l'arc Plateforme de forage de puits Eolienne

Key Design Planning Prototype Almost done Full Release