Stefa Slit-Bend Folder with Built-In Shear

General Specifications / Standard Features

• Model: VH315
• Max. Thickness Admissible: 1.5 mm steel, 2 mm aluminum, 0.9 mm stainless
• Working Length: 3200 mm
• No. Arms: 4
• Max. Cut Capacity (Slitter): 3 mm mild steel
• Backgauge Range: 1110 mm to 5 mm
• Standard Backgauge Tolerance: -0.1 mm / +0.2 mm
• Servomotor Backgauge Tolerance: -0.01 mm / +0.02 mm
• No. Backstops: 3
• Standard Backgauge Speed: ~70 mm/s
• Servomotor Backgauge Speed: 250 mm/s
• Opening Height Clamping Beam: 260 mm
• Max. Rotation of Bending Beam: 145°
• Bending Tolerance: +/- 1°
• Hydraulic Power: 3 kW
• Weight: 8512 lbs
• Colors: RAL2008 (Light orange) / RAL7043 (Dark grey)

List of Equipment

Mechanical

• Original Geometry: Standard
  • Permits a large range of formats on bending thanks to the inclination of the clamping beam, great for rectangular profiles.
  • The clamping beam has a machined groove that allows for a closed angle (155º) when clamping.
  • The table is marked with risks at 10 mm intervals to help the operator position the material correctly.
• Machined Geometry: Standard
  • The presser foot and table are machined for better use of space, allowing for smaller folds.
  • Distance table: 15 mm
• Bending Beam: Standard
  • Strong linkages that allow a rotation up to approximately 145º
  • Equipped with a removable reinforced tool to achieve smaller counter-bend parts.

Backgauge

• Motor-Brushless Backgauge: Standard
  • Range: 5 mm to 1100 mm
  • Speed: 70 mm/s
  • Tolerance: +/- 0.1 mm
  • Includes metallic trays
• Servomotor Backgauge: Standard
  • High speed and precision control
  • Speed: 250 mm/s
  • Tolerance: +/- 0.02 mm

Shear

• Hydraulic Shear: Standard
  • Trimmer with adjustable slitting blades for smooth operation
  • Hydraulic powered and linear guided for strength and precision

Radius Adjustment

• Hydraulic Adjustment of Radius: Standard
  • Adjustment made by cylinder

Hydraulics

• Hydraulic Unit by Inverter: Standard
  • High energy efficiency drive with ABB inverter
  • Low noise hydraulic pump from Eckerle
  • ON-OFF hydraulic valves from Eaton – Vickers

Controllers

• Mini Alligator ProBender Control: Standard
  • Jog and automatic control via Yaskawa PLC
  • 10” HMI touch screen
  • Automatic production for 20 steps
  • Create and save programs, automatic hem and shear operation, rounded mode operation, and pressure selector (120/180 bar)

Safety

• Safety Circuit: Standard
  • Complies with European norms and safety recommendations
  • Safety triple pedal, safety bar along the machine, safety PLC, emergency button on command, hydraulic redundancy, mechanical protections on shear, and intermediate stop on CB

Optional Features

• Goat Foot Tool: For narrow high U-flanges and making boxes. Max. sheet thickness: 15 mm (St 42), max. bending angle: 105°, height of tool: 100 mm.
• Additional Finger: For added precision and versatility.
• Conical Backgauge: 2nd axis for conical backgauge with gauge on the edge of the machine, max difference between two axes: 450 mm.
• Retractable Trays: For practical handling and increased space for counter-bending.
• Shear Movement from Right to Left: Optional inverted shear with home position on the right side of the machine.
• Automatic Adjustment of Radius: By encoder, included in EliteBender package.
• Hydraulic Exchanger: To cool oil temperature, recommended for very hot industrial sites and regions.
• Hydraulic Heater: To heat oil temperature, recommended for very cool industrial sites and regions.
• Mobile Control: Removable control stand with free movement by wheels.
• Battery for Controller: For up to 30 minutes of operation in case of power interruption.
• EliteBender CNC: Advanced graphical control with 21” touch monitor, 600,000 program capacity, Windows 10 software, and remote connection capability.
• Safety Laser: For increased speed and safety, detecting fingers in the clamping area and providing protective side guards.
• Anti-Fatigue Mat: For reducing fatigue at workstations with long periods of standing.
• Elite 4.0: License for graphical software to be installed in office PCs, allowing program transfer to the machine.

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