Turret-Type Side edge trimmer for Vietnam Project

Project Case Study: Turret-Type Side edge trimmer, Scrap Chopper & Drum Rotary Flying Shear

Client: Hoa Phat Group (Leading Vietnamese Steel Producer)

Project: 1.2 Million Tons Comprehensive Cold Rolling & Continuous Annealing/Galvanizing Project

Location: Vietnam

Equipment Supplier: Xiangyang Jiade Machinery Co., Ltd.

1. Project Overview

Xiangyang Jiade Machinery successfully supplied critical cutting-edge solutions for Hoa Phat Group’s flagship 1.2 Million Tons Comprehensive Cold Rolling & Continuous Annealing/Galvanizing Project. This mega-project represents a strategic leap for Hoa Phat, integrating Pickling Lines, Cold Rolling Mills, Continuous Annealing Lines (CAL), Hot-Dip Galvanizing Lines (CGL), and Finishing Sections into a single, highly efficient ecosystem.

Facing increasing market demand for high-value galvanized products and navigating complex trade environments, Hoa Phat initiated this upgrade in 2025 to solidify its dominance in the Southeast Asian steel market. Jiade’s equipment plays a pivotal role in ensuring the final product quality meets stringent international standards.

Key Technical Parameters:

· Material Grades: CQ, DQ, DDQ (Commercial / Drawing / Deep Drawing Quality)

· Strip Width: 700 mm –1300 mm

· Strip Thickness: 0.2 mm – 0.8 mm

· Line Speed: Up to 280 m/min (Side edge trimmer & Scrap Chopper)

· Line Speed: Up to 60 m/min (Drum fly shear)

2. Scope of Supply & Technical Highlights

Jiade provided three core pieces of equipment essential for precision strip processing:

A. Turret-Type Disc Slitter (Side Trimmer)

· Function: Precision edge trimming to remove rough edges from the rolling process and ensure exact final width.

· Design: Tower-type structure allowing quick tool changes and high rigidity.

· Application: Installed on CAL and CGL lines to maximize coil value.

B. Turret-Type Scrap Chopper

· Function: Efficiently chops trimmed edges into manageable, uniform segments for easy recycling.

· Design: Heavy-duty turret construction synchronized with line speed.

· Benefit: Prevents tangling of scrap, ensuring smooth, uninterrupted operation.

C. Rotary drum flying shear

· Function: Performs high-speed, length-accurate cutting of moving strip without stopping the line.

· Application: Critical for Cut-to-Length lines and sampling sections within the integrated complex.

3. How It Works: Adding Value Through Precision

Edge trimming is not merely a cutting process; it is a value-adding operation. As the strip travels at speeds up to 280 m/min:

1. Defect Elimination: The Disc Slitter removes micro-cracks, burrs, and irregular edges left by previous rolling stages.

2. Precision Tolerance: Overlapping blade configurations ensure a clean, burr-free edge and maintain strict width tolerances (±0.1mm level).

3. Continuous Waste Management: The Scrap Chopper processes the trimmed edges in real-time, maintaining a clean production floor and facilitating immediate scrap recovery.

4. Seamless Integration: The Flying Shear coordinates with the line automation to cut samples or transition coils without decelerating the main line, preserving thermal efficiency in annealing and galvanizing processes.

4. Problems Solved for the Client

Before integrating Jiade’s advanced cutting systems, Hoa Phat faced challenges typical of scaling up high-end production:

· Edge Defects: Inconsistent trimming led to customer complaints regarding edge cracks during deep drawing (DDQ) applications.

· Slow Tool Changes: Downtime during knife changes hampered overall equipment effectiveness (OEE).

· Scrap Handling Issues: Long, snarled trimmings interrupted production and posed safety risks.

· Speed Limitations: Existing equipment could not reliably keep pace with the 280 m/min line speed required for economic viability.

5. Key Benefits Delivered

✅ Maximized Coil Added Value

By eliminating edge defects and providing precision width tolerance, Jiade’s disc slitters transform semi-finished strip into premium-grade products ready for demanding automotive and appliance applications. Clean edges reduce rejection rates in subsequent stamping and forming processes.

✅ Enhanced Final Product Quality

The side trimming section is a key equipment determinant for final product quality. Our machines ensure the strip exits the CAL/CGL lines with impeccable edges, meeting the high standards required for exposed surfaces in white goods and automotive parts.

✅ Unmatched Operational Efficiency

Designed for 280 m/min operations, our systems minimize bottlenecks. The tower-type design facilitates rapid blade changes, drastically reducing non-productive time. This directly supports Hoa Phat’s goal of high-volume, high-mix production.

✅ Superior Reliability & Safety

The integration of the Tower-Type Scrap Chopper ensures continuous, trouble-free scrap handling. This protects downstream equipment from damage caused by flying scrap and creates a safer working environment for mill operators.

6. Strategic Impact

This project marks a significant milestone in Hoa Phat’s vertical integration strategy. By mastering high-quality cold rolling and galvanizing, they are well-positioned to substitute imports and meet the surging demand from Southeast Asia’s manufacturing sector. Xiangyang Jiade Machinery is proud to contribute to this transformation, providing the technological backbone for precision and efficiency.

"Jiade’s cutting technology is integral to our new cold rolling complex. The ability to maintain precision at 280 meters per minute while producing clean, defect-free edges gives us a distinct competitive advantage in the regional market."

— Project Director, Hoa Phat Group

7. Conclusion

The successful commissioning of Jiade’s Turret type side trimmer, Scrap Chopper, and Rotary Flying Shear in Vietnam underscores our expertise in delivering robust, high-speed solutions for complex metallurgical projects. We remain committed to supporting global leaders like Hoa Phat in their pursuit of excellence and market expansion.

Xiangyang Jiade Machinery Co., Ltd.

Precision Cutting Solutions for Metal Processing

www.xfjdmc.com

www.jiademachinery.com

robinc2007@126.com