Overview

This document presents technical specifications, features, control systems, customization options, and additional products related to the "SP" series decoilers manufactured by G.P.A. Italiana s.r.l. These decoilers are designed for handling metal coils with various widths and weights, offering both motorized and undriven models.

1. Product Description and Construction

• Model: 1000+1000 double undriven decoiler with hydraulic jaw expansion and manual vertical axis rotation.
• Construction: High-strength steel shaft mounted on ball bearings; hydraulic cylinders operate expansion jaws; manual or electrical hydraulic power unit for jaw opening.
• Coil Handling: Fast-operation front ring for coil blocking optimizes guiding of narrow strips.
• Series Variants:
  • SPM (Motorized): Motor-reducer with adjustable torque limiter.
  • SPF (Undriven): Braking torque adjustable via rear disc pad.

2. Control System Features

• Metal-enclosed electrical control panel mounted on the frame.
• Standard functions include:
  • Manual-Automatic selector switch.
  • Automatic cycle start pushbutton.
  • Motor thermal protection alarm lamp.
  • Emergency pushbutton with indicator lamp.
  • Terminal strips for emergency and remote reset interfacing (feeder and/or press).
  • Start-stop system activated by contact mass rollers.
  • Coil end timer.
• Optional features:
  • Start-stop control via photoelectric cell with reflector.
  • Start-stop control via large diameter proximity sensor.
  • Electronic speed variator with acceleration and deceleration ramps.

3. Customization and Additional Equipment

• Customized feeder lines composed of:
  • 300 kg motorized G.P.A. decoiler.
  • Light series AN pneumatic feeder.
  • 10 kN pneumatic cutter.
  • Electric command and control board.
• Additional products:
  • Undriven roller straighteners with 3-5 rollers (diameter 30-60 mm) featuring manual upper roller unlocking.
  • Linear pneumatic conveyors for evacuation of pieces and scrap with vibration.
  • Ecological lubrication units with oil recovery systems.
  • Horizontal decoilers (motorized and undriven) suitable for medium-width thin strips and wire, capable of handling multiple stacked coils with inverter-controlled variable speed.
  • Pneumatic feeders up to 1200 mm width, including CNC clamp feeders up to 1200 x 1200 mm and feeders mountable directly on dies.
  • Press safety valves (MEP-A series).

4. Dimensions and Acoustic Performance

Dimensions are provided for various decoiler capacities (400 kg to 3000 kg) with corresponding measurements (A to H) in millimeters. The acoustic pressure level during operation is below 70 dBA, ensuring low noise emissions.

5. Manufacturer Information

G.P.A. Italiana s.r.l.
Via L. Da Vinci, 25, 22074 Lomazzo (CO), Italy
Tel: +39 02 96779406
Fax: +39 02 96370473
Email: [email protected]
Website: www.gpa-automation.com

Critical Information Summary

• Hydraulic expansion jaws enable secure coil holding with manual or electric control.
• Motorized models feature adjustable torque limiters for precise tension control.
• Control panels provide comprehensive safety and automation functions including emergency stops and remote interfacing.
• Customization options allow integration with pneumatic feeders, cutters, and straighteners for complete coil feeding lines.
• Noise level maintained below 70 dBA for operator comfort.