Case

Case

Home > Case > Automated Coil Feeding Line for Precision Stamping of Small Metal Parts

Automated Coil Feeding Line for Precision Stamping of Small Metal Parts

In the competitive world of precision metal stamping, especially for small parts used in automotive and electronics industries, consistent quality and high productivity are non-negotiable. Many manufacturers struggle with manual feeding, which leads to defects, material waste, and costly downtime. ​This case study details how one manufacturer overcame these challenges by implementing a fully automated coil feed line, integrating a Decoiler Straightener and a customized NC Servo Feeder. The result was a transformative boost in precision, efficiency, and cost-effectiveness for their stamping press operations.
Automated Coil Feeding Line for Precision Stamping of Small Metal Parts

For metal fabricators and stamping shops, floor space is prime real estate. Juggling a separate decoiler and straightener consumes valuable square footage and creates production bottlenecks. 

The integrated Decoiler Straightener 2-in-1 machine solves this by combining two critical functions into a single, streamlined unit. This guide explains how this all-in-one solution saves space, reduces costs, and boosts productivity for industries like automotive, appliance manufacturing, and construction.

The Challenge: Inconsistency, Waste, and Downtime

The primary challenges faced by the facility included:The facility faced critical pain points common in manual and semi-automated setups:


  • Inconsistent Feeding: Manual loading caused part misalignment and defects.

  • High Material Wastage: Coil curls and improper handling led to significant scrap loss.

  • Frequent Downtime: Constant adjustments and maintenance disrupted production flow.

  • Inflexibility: The old system could not adapt to varying material thickness or coil width quickly.

The Solution: A Custom-Designed, Automated Feeding System

The core solution was a coil feeding line designed for seamless automation from coil unwind to press feeding. The key components were:

  • Decoiler: Automatically unwinds the metal coil.

  • Straightener (2-in-1 Machine): Flattens the metal strip, removing all curls and bends to ensure perfect material entry.

  • NC Servo Feeder: The heart of precision. This programmable feeder provides exact control over feed length and speed. A critical customization was designing a floor-standing NC servo feeder with an extended discharge frame. This was essential to integrate with the customer's older punch press model that had triangular brackets and a glass guard, making direct mounting impossible.


 Implementing a Coil Feed Line with Decoiler Straightener and NC Servo Feeder for Stamping Small Metal Parts  Implementing a Coil Feed Line with Decoiler Straightener and NC Servo Feeder for Stamping Small Metal Parts  

Implementation & Customization Process

Successful integration required a tailored approach:

  • System Customization: The entire line was customized for specific materials (steel, aluminum). The NC servo feeder was programmed for various part designs.

  • Seamless Integration: The floor-standing feeder was strategically placed to allow smooth material flow from the straightener into the existing stamping press and molds.

  • Testing & Training: Rigorous testing with different materials ensured optimal performance. Comprehensive operator training guaranteed smooth adoption.


Implementing a Coil Feed Line with Decoiler Straightener and NC Servo Feeder for Stamping Small Metal Parts    Implementing a Coil Feed Line with Decoiler Straightener and NC Servo Feeder for Stamping Small Metal Parts

Tangible Results & ROI

The investment delivered measurable, high-impact returns:

  • 30% Reduction in Stamping Defects due to precise material positioning.

  • 20% Less Material Wastage from eliminated coil curls.

  • 25% Increase in Production Speed through automation and reduced downtime.

  • Lower Operational Costs from reduced manual labor and minimal error.

  • Enhanced Flexibility to switch between jobs with quick programmable changes.

Conclusion: A Strategic Upgrade for Modern Stamping

For manufacturers of small metal parts, upgrading to an automated coil feed line is a strategic move. It directly addresses core production challenges, turning bottlenecks into competitive advantages. This case proves that even with older press equipment, a customized feeding solution can unlock new levels of precision stamping efficiency and product quality.


Ready to transform your metal stamping productivity? Contact Sunrui today to discuss a customized coil feed line solution for your specific press and production needs.

Name*

Email*

Tel.*

Comment or Message

CAPTCHA*