The Eco 3 5 7 Ply Corrugated Cardboard Production Line from BMC Pack is the perfect combination of energy efficiency, production stability, and affordability. Designed for medium and large factories seeking to balance investment and performance, this line delivers superior corrugated sheets for packaging boxes used across logistics, food, electronics, and industrial applications.
Built on advanced mechanical precision and stable automation, the Eco 3 5 7 Ply Corrugated Cardboard Production Line is designed with a maximum speed of 150 m/min and an effective width of 1800 mm. This production line features key components such as Hydraulic Mill Roll Stand, Fingerless Single Facer, Overbridge Conveyor, Preheater, Duplex Gluing Machine, Double Facer, Computer Thin Blade Machine, and Helical Knives NC Cutting Machine.
This eco series prioritizes energy conservation and durability through a modular structure, smart control system, and optimized steam consumption. With enhanced automation and servo coordination, manufacturers can expect a reliable and environmentally responsible corrugated cardboard production line that ensures high-quality board output with minimal waste.
Eco 3 5 7 Ply Corrugated Cardboard Production Line Overview
The Eco 3 5 7 Ply Corrugated Cardboard Production Line is ideal for factories producing 3-layer, 5-layer, or 7-layer corrugated sheets. It integrates both performance and sustainability, allowing flexible flute combinations (A, B, C, E) for diverse carton requirements.
- Model: WJ150-1800 (Eco Series)
- Design Speed: 150 m/min
- Working Width: 1800 mm
- Length: 73–85 m (5-ply) / 100–110 m (7-ply)
- Steam Requirement: 3200–3800 kg/h, max pressure 1.6 MPa
- Total Power: Approx. 265 kW (common use: 185 kW)
- Voltage: 380V / 50Hz, 3-phase
- Flute Type: A, B, C, E
- Heating System: Steam type, sectioned control for stable temperature
- Recommended Plant Size: 85 m × 15 m × 6 m
This line’s compact, integrated design enables easy installation and flexible configuration—making it ideal for regional manufacturers or companies upgrading from semi-automatic lines to full automation.
Core Components of Eco 3 5 7 Ply Corrugated Cardboard Production Line
Hydraulic Mill Roll Stand (RS-1500-1800 Type)
A fully hydraulic structure ensures continuous feeding without downtime. Capable of handling rolls up to 1500 mm in diameter and 2500 kg in weight, it features dual-point brake tension control and pneumatic strain adjustment. The stand uses high-strength Q235 / HT250 castings, ABB / Schneider electrical components, and Airtac pneumatics for smooth and safe operation.
Fingerless Single Facer (SF-320S-1800 Type)
The fingerless vacuum suction design keeps the corrugated profile stable even at high speeds. It supports multiple flute profiles and uses 48CrMo alloy steel rollers, NSK bearings, and Taiwan Delta inverters. The vacuum box, chrome-plated glue roller, and frequency-controlled motors ensure optimal flute formation with low energy use and minimal waste.
Overbridge Conveyor (BS-T Type)
Available in both two-layer and three-layer configurations, the Overbridge Conveyor precisely transfers single-faced sheets to the gluing stage. With independent servo drives, frequency converters, and photoelectric sensors, this module ensures perfect synchronization between single facers and double facers, maintaining consistent tension and flatness.
Preheater (MH-600T Type)
Constructed with 600 mm steel rollers and electric motion adjustment (60–270°), the Preheater ensures consistent moisture control. The chrome-plated and pressure-certified rolls achieve even paper heating, improving bonding and minimizing curl issues. Multiple layers of preheaters (2–4 units) are used depending on the line configuration.
Duplex / Three-Layer Gluing Machine (GA-318D-1800 Type)
Using stainless steel glue tanks, digital glue control, and automatic circulation, this system guarantees perfect adhesive coating. Servo synchronization adjusts glue quantity by line speed, ensuring stable adhesion without over-gluing or paper damage.
Double Facer (DF-745-1800 Type)
This section utilizes 16 heating plates and 12 pressing plates for even bonding across all flutes. The S-type steam inlet system provides uniform heat distribution. With automatic web correction and cotton belts from Shenyang, it achieves durable lamination with excellent flatness even at continuous operation speeds.
Computer Thin Blade Machine (SS-200-1800 Type)
Featuring five blades and eight scoring wheels, this system enables fast order changes (within 5–8 seconds). With servo-driven synchronization and auto blade grinding, it guarantees ±0.5 mm accuracy and perfect crease consistency for subsequent creasing and die cutting.
Helical Knives NC Cutting Machine (NC-150N-1800 Type)
Driven by German KEB servo systems, the Helical Knives NC Cutter ensures high-speed, precise trimming up to ±1 mm accuracy. Capable of storing multiple job settings, it automates order changes and eliminates downtime, resulting in smooth, burr-free edges for export-grade cartons.
Key Advantages and Technological Features
- Energy Efficiency: Optimized steam heating and servo synchronization minimize energy consumption.
- Stable Operation: Modular control and digital display systems ensure process reliability.
- High Flexibility: Multi-flute configurations and adjustable preheaters meet diverse carton specifications.
- Safety & Durability: Chrome plating, closed-gear lubrication, and automatic glue recycling prolong component lifespan.
- Smart Automation: PLC-controlled order changes, temperature regulation, and fault detection improve overall uptime.
Technical Specification Table
Parameter | Specification |
Model | WJ150-1800 Eco Series |
Design Speed | 150 m/min |
Working Width | 1800 mm |
Line Length | 73–85 m (5 Ply) / 100–110 m (7 Ply) |
Flute Type | A, B, C, E |
Steam Pressure | 0.8–1.6 MPa |
Steam Consumption | 3200–3800 kg/h |
Power (Total/Common) | 265 kW / 185 kW |
Voltage | 380V 50Hz |
Recommended Workshop | 85 × 15 × 6 m |
Control System | PLC + Servo synchronization |
Heating System | Steam sectional heating |
Cutting Accuracy | ±1 mm |
Material | Alloy Steel / Cast Iron / Chrome-plated rolls |
Comaprison table summarizing the key parameters between 3-ply, 5-ply, and 7-ply corrugated cardboard production lines, based on your uploaded technical documents:
Comparison Table: 3 / 5 / 7 Ply Corrugated Cardboard Production Line
Parameter | 3-Ply Line | 5-Ply Line | 7-Ply Line |
Model Example | WJ150-1800 (3 Layer) | WJ150-1800 (5 Layer) | WJ150-1800 (7 Layer) |
Design Speed | 150 m/min | 150 m/min | 150 m/min |
Effective Width | 1800 mm | 1800 mm | 1800 mm |
Production Line Length | Approx. 55–65 m | Approx. 73–85 m | Approx. 100–110 m |
Flute Type | A, B, C, E | A, B, C, E | A, B, C, E |
Heating Method | Steam heating | Steam heating | Steam heating |
Steam Consumption | ~2000–2500 Kg/h | 3200–3800 Kg/h | 4000–4500 Kg/h |
Max Steam Pressure | 1.6 MPa | 1.6 MPa | 1.6 MPa |
Total Installed Power | 210 kW (approx.) | 265 kW (approx.) | 320 kW (approx.) |
Average Running Power | 140 kW | 185 kW | 220 kW |
Main Equipment Included | 2 Single Facers, 1 Overbridge, 1 Double Facer | 2 Single Facers, 1 Double Facer, 1 Overbridge Conveyor | 3 Single Facers, 1 Double Facer, 1 Triple Overbridge Conveyor |
No. of Hydraulic Mill Roll Stands | 3 units | 5 units | 7 units |
Preheaters | 2 units | 5 units | 7 units |
Gluing Units | 1 Duplex Gluing Unit | 1 Duplex Gluing Unit | 1 Three-layer Gluing Unit |
Stacking Section | Auto stacker (1 set) | Auto small gantry stacker (1 set) | Auto small gantry stacker (1 set) |
Cutting Section | Thin Blade Slitter Scorer + NC Cutter | Thin Blade Slitter Scorer + NC Cutter | Double Thin Blade Slitter Scorer + NC Cutter |
Power Supply | 380V, 50Hz, 3 Phase | 380V, 50Hz, 3 Phase | 380V, 50Hz, 3 Phase |
Minimum Workshop Size | 65m × 10m × 5m | 80m × 12m × 5m | 100m × 15m × 6m |
Recommended Workshop Size | 70m × 12m × 5.5m | 85m × 15m × 6m | 110m × 18m × 6.5m |
Control System | PLC + HMI (Schneider / Delta / ABB) | PLC + HMI (Schneider / ABB) | PLC + HMI (Schneider / ABB) |
Automation Level | Semi-Automatic / Fully Auto | Fully Automatic | Fully Automatic |
Typical Output Use | 2-Ply + 1-Ply = 3-Ply Board | 3-Ply + 2-Ply = 5-Ply Board | 5-Ply + 2-Ply = 7-Ply Heavy Duty Board |
Suitable For | Small & medium packaging plants | Medium & large box factories | Heavy-duty carton & export packaging factories |
Summary
- 3-Ply Line: Compact, economical, for low–medium volume and standard corrugated box production.
- 5-Ply Line: Most popular configuration — perfect balance of speed, efficiency, and box strength.
- 7-Ply Line: High-strength, heavy-duty board for industrial/export use; higher investment and energy demand.
Extended Section – ROI, Efficiency, and Partnership Benefits
The Eco 3 5 7 Ply Corrugated Cardboard Production Line delivers not only mechanical reliability but also a strong financial advantage. Its design reduces energy consumption by 30%, minimizes downtime, and improves production yield by up to 40% compared to older-generation models.
With automation-driven modules such as the Computer Thin Blade Machine and Helical Knives NC Cutter, the line ensures reduced labor cost, faster order switching, and less waste material, directly increasing the ROI for manufacturers.
Factories using this corrugated cardboard production line report smoother operations, higher output quality, and long-term maintenance stability. The system’s modular design allows upgrading with Flexo Printer Folder Gluer, Rotary Die Cutter, and Creasing and Die-Cutting Machine, forming a complete packaging solution under the BMC Pack ecosystem.
When partnering with BMCPack, clients gain access to:
- Global technical service & training
- 1-year warranty + lifetime support
- Competitive pricing (up to 20% lower than market rate)
- On-site installation guidance and spare parts assistance
Conclusion
The Eco 3 5 7 Ply Corrugated Cardboard Production Line by BMC Pack stands as the ultimate choice for sustainable and cost-efficient packaging production. With its robust structure, smart automation, and eco-friendly steam system, it helps manufacturers achieve high productivity while maintaining product consistency.
By integrating innovation, quality assurance, and strong after-sales service, BMC Pack ensures that every partner factory receives the best performance-to-cost ratio in the corrugated machinery industry.
Choose BMC Pack – your trusted partner in corrugated carton production line excellence and innovation.
🛒 Alibaba Store: https://bmcpack.en.alibaba.com
Your comment