CNC Press Brake

 A CNC Press Brake is a computer-controlled machine used to bend sheet metal into precise angles and shapes. Unlike a turret punch press, which punches holes, a press brake forms bends using a punch and die set.

How It Works

  1. Metal sheet is positioned on the machine.
  2. CNC controller moves the back gauge to the required position.
  3. The upper punch descends into the lower die.
  4. The sheet is bent to the programmed angle.
  5. Multiple bends can be performed automatically.

Main Components

  • CNC Controller
  • Punch Tool
  • Die Tool
  • Ram (Upper Beam)
  • Back Gauge System
  • Hydraulic or Servo-Electric Drive
  • Safety Light Curtains

Applications

  • Electrical Enclosures
  • Control Panels
  • Metal Cabinets
  • HVAC Components
  • Automobile Parts
  • Steel Furniture

Advantages

✅ High bending accuracy
✅ Fast production speed
✅ Complex multi-angle bending
✅ Reduced material waste
✅ Repeatable quality

Process Flow

Metal Sheet → CNC Programming → Positioning → Bending → Quality Inspection → Finished Part

Common Manufacturers

  • Amada
  • TRUMPF
  • Bystronic
  • LVD
  • Accurpress

CNC Press Brake vs CNC Turret Punch Press

CNC Press BrakeCNC Turret Punch Press
Bends sheet metalPunches holes and shapes
Uses punch & die for bendingUses punching tools
Creates angles and profilesCreates cutouts and perforations
Forming operationPunching operation

Typical products: electrical panel boxes, server racks, cabinets, brackets, channels, and metal enclosures.

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