Hydraulic Round Bending Machine BENDMAK CY4R-HHS 330-20/25

Hydraulic Round Bending Machine BENDMAK CY4R-HHS 330-20/25


BENDMAK CY4R-HHS is a powerful 4-roll hydraulic round bending machine designed for precision sheet metal forming. This machine ensures accuracy, reliability, and operational convenience through its hydraulic drives, adjustable side rolls, induction-hardened rollers, and structural designs that facilitate easy material loading and unloading. It is an ideal solution for enterprises manufacturing ductwork components, cylindrical forms, and conical shapes that require stability and high repeatability.

Features and Advantages

  • Hardened and Ground Rolls: Induction-hardened and polished rolls minimize wear and significantly improve the surface quality of the finished bend.

  • ST-52 Steel Body: The frame is constructed from ST-52 structural steel, ensuring maximum rigidity and stability under high operational loads.

  • 4-Roll System: The symmetrical 4-roll configuration provides superior sheet support, minimizes deformation, and allows for more precise circular bending with shorter flat ends.

  • Hydraulic Drop End: The top roll bearing housing is hydraulically operated, facilitating the easy loading of material and removal of finished cylindrical parts.

  • Adjustable Side Rolls: Two side rolls move up and down hydraulically, allowing for precise adjustment of the bending profile and material contact.

  • Powered Main Rolls: The top and bottom rolls are driven by hydraulic motors coupled with planetary gearboxes; the bottom roll also features vertical adjustment for material clamping.

  • Cone Bending Device: Integrated capability to bend tapered and conical shapes in addition to standard cylinders.

  • Digital Position Readouts: Dual digital displays allow the operator to monitor the exact position of both side rolls for high precision.

Standard Equipment

  • 4 rolls with hardened and polished surfaces.

  • Hydraulic vertical adjustment of side rolls with digital position sensors.

  • Hydraulic motor and planetary gearbox drive for the top and bottom rolls.

  • Symmetrical working principle for consistent contact on both sides of the sheet.

  • Independent mobile control panel for safe and ergonomic operation.

  • Cone bending device.

  • Full compliance with CE safety standards.

Options

  • Infinitely Variable Speed: Allows the operator to adapt the rotation speed to different material types and thicknesses.

  • Feeding Tables: To assist in the smooth intake of large metal sheets.

  • Central and Side Supports: Overhead and lateral hydraulic supports to prevent deformation in large-diameter or heavy workpieces.

  • Interchangeable Top Roll: For processing different profiles or specialized material requirements.

  • Automatic Material Ejector: Simplifies the removal and transfer of finished products.

  • PLC or CNC Upgrades: Advanced control systems for enhanced automation and batch processing.

  • Oil Cooling System: Maintains optimal hydraulic fluid temperature during high-intensity operations.

Technical Specifications

Parameter Value
Working Length 2100 mm
Max. Steel Thickness () 25.0 mm
Pre-bending Capacity 20.0 mm
Top Roll Diameter 330 mm
Bottom Roll Diameter 300 mm
Side Roll Diameter 240 mm
Motor Power 15.0 kW
Dimensions ()
Weight 9120 kg

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