AUTOMATIC STACKER – AUTOMATIC STACKING SYSTEM FOR ROLL FORMING LINES
An automatic stacker (automatic stacking system) is a key component in modern roll forming machines, built to automatically receive, organize, and stack metal products after the cutting process. With a reliable post-cut stacking system, manufacturers can increase productivity, reduce handling errors, and ensure smooth material flow in high-volume production lines. This solution is widely applied to roofing sheets, wall panels, metal sheets, and other roll formed products.
Working Principle
The automatic stacker operates in synchronization with the roll forming and cutting system. After the cutting process, each product is transferred onto an infeed conveyor and guided into the stacking zone.
The system typically includes:
- Decoiler: Feeds raw material coil into the production line
- Roll Forming Machine: Forms the material into the required profile
- Conveyor System: Transfers finished products from cutting to stacking
- Automatic Stacker: Receives and stacks products in a controlled manner
The system applies a controlled free-drop stacking method, where each product is guided along support rails and released at a precisely defined position into the stacking zone. The drop timing and height are carefully controlled to ensure stable stacking, maintain product alignment, and prevent deformation or surface damage.
This synchronized process ensures continuous, high-speed production without interruption, while maintaining consistent stacking quality and operational stability.
Technical Specifications & Characteristics
The automatic stacker operates in synchronization with the roll forming line at speeds of up to 50 – 60 m/min. It is designed to handle product lengths commonly ranging from 6, 8, 10, to 12 meters, with customizable options available based on production requirements. The system also allows the stacking quantity per bundle to be adjusted according to different production needs.
The storage table is designed to move left and right by a gear motor with chain drive, allowing organized transfer and positioning during the stacking process. The feeding system delivers material through a transmission shaft, ensuring smooth and continuous movement from the cutting section to the unloading area. This arrangement supports stable product transfer and efficient stacking performance in the production line. The machine is automatically controlled by the PLC system of the cutting-to-length machine, allowing synchronized operation with the main line and simplifying system control.
Key Benefits of Automatic Stacker
The automatic stacker is designed to keep up with high-speed production, allowing the entire roll forming line to operate at full capacity without slowing down at the stacking stage. This ensures maximum output and better utilization of the production system.
By automating the stacking process, the system significantly improves workplace safety, eliminating manual handling of long or sharp metal sheets and reducing the risk of accidents during operation.
The automatic stacker also enhances production consistency by delivering stable and organized stacking results, helping downstream processes such as packing and transportation run more efficiently.
In addition, it supports a cleaner and more controlled production environment, where finished products are handled systematically instead of being manually collected and arranged.
WHY CHOOSE THIS AUTOMATIC STACKING SYSTEM?
Precise positioning with free-drop stacking design
Help ensure uniform bundles, reduces misalignment, improves packing and transport efficiency, and helps lower maintenance while enhancing overall system reliability.
Reduced product damage and surface protection
Controlled stacking process prevents scratches, dents, and deformation, maintaining product quality
Flexible for various product types and sizesEasily adapts to different profiles (roof panels, purlins, metal sheets), reducing changeover time. Seamless integration with roll forming linesWorks in perfect synchronization with forming and cutting systems, creating a smooth and continuous production flow. |
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Applications
The automatic stacking system is suitable for a wide range of industrial applications, including:
- Roofing sheet production lines (corrugated, trapezoidal, standing seam)
- Wall panel manufacturing
- Metal deck and floor deck production
- C/Z purlin and structural profiles
- Aluminum and galvanized sheet processing
- Pre-engineered building (PEB) manufacturing
- Steel service centers handling cut-to-length sheets
It is especially beneficial in high-volume production where manual stacking becomes inefficient or inconsistent.
SPECIFICATIONS AND EQUIPMENT
- Automatic roll forming and cutting with Inverter, PLC, HMI
- Automatic programmable length settings via the touch panel
- Roller and blade are fabricated from alloy and SKD11 steel 60-62HRC
- Electrical and hydraulic components made from Japan, Germany
- Save history for orders in 30 days
- Customize design
- Stable operation with strong power and body frame
| SPECIFICATION | |
| Items | Details |
| Weight of auto stacker | ~2.5 – 3.5 tons |
| Dimension (LxWxH) | ~(6..5 – 12.5) m x (2.5 – 3.0) m x (1.6 – 1.8) m |
| Length of feeding | 6 – 12m |
| Loading | 1.5 – 2 tons |
| Control system | Controlled automatically from PLC system of cutting to length machine |
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WHY CUNMAC MACHINERY?
ABOUT CUNMAC
Our over 15 years of experience in manufacturing roll forming machines is a result of our high-quality awareness to operate in a continuously innovative process. This process is based on market needs and desires for innovation, automation, and quality.Our quality covers not only employees and suppliers but also production methods, products, and partners. All parts of products are fabricated from alloy steel by CNC precision machines. Electrical and hydraulic components derive from reputable brands such as Siemens, Schneider, OMRON, Hitachi, Yuken…
OUR ADVANTAGES
FACTORY AREA 3000M2
CUNMAC factory is located in Thuan An district, Binh Duong province with a full range of machines and equipment for processing services at the factory.
FULL TYPES OF PROCESSING MACHINE
The company has fullsets of large and medium-sized production equipment so we are committed to controlling the whole production process and serving you the best quality and after-sales service.
MORE THAN 80 STAFF AND TECHNICIANS
Experienced engineers and technicians in professional operation management team will bring customers satisfactionin products and services.
INNOVATIVE DEVELOPMENT
With continuous improvement and innovation over the years, we have become one of the global manufacturers to ensure high quality and excellent customer services.
RICH EXPERIENCE
More than 15 years dedicated to mechanical production with rich experiences of different types of machines all over the world.
EXPERIENCE TO WORK WITH DIFFICULT MARKETS
The company’s products are exported to more than 50 countries and regions such as the the USA, Korea, Australia, Middle East, Uruguay, France, India, Sri Lanka, Myanmar, Malaysia, Indonesia, Thailand, Vietnam, etc.
