Corrugated Paper Making Line — High-Efficiency Fluting & Testliner Solutions | Leizhan
Meeting the Demand for High-Strength Corrugated Packaging
E-commerce, export packaging, and sustainable logistics are driving mills to upgrade their corrugated paper making lines.
Key Equipment for a 300-500 TPD Corrugated Line
OCC Pulping System
- Hydraulic Pulper: 300-500 TPD capacity, 4-5% consistency, with ragger and junk trap for heavy contaminants
- Drum Pulper: 200-400 TPD, ideal for heavily contaminated OCC, gentle fiber treatment
Screening & Cleaning
- High Consistency Cleaner: Removes staples, glass, and heavy particles at 3-4% consistency
- Pressure Screen: 0.20-0.35mm slots for fluting grade, 0.15-0.25mm for testliner
- Low Consistency Cleaner: Final-stage sand and ink removal before thickening
Fractionation & Refining
- Fractionator Screen: Separates long fiber (testliner) from short fiber (fluting/filler ply)
- Double Disc Refiner: 250-500 kW, disc diameter 660-910mm, energy consumption 40-60 kWh/t for OCC
Paper Machine Configuration
- Wire Width: 3600-4800mm | Design Speed: 350-500 m/min | Basis Weight: 90-200 gsm | Production: 300-500 TPD
Energy Efficiency: Real-World Results
A Southeast Asian mill upgraded from single-disc to our double disc refiner system. Refining energy dropped from 65 kWh/t to 48 kWh/t — a 26% reduction. Annual electricity savings: approximately 8,000 for a 400 TPD line. Fiber quality also improved with more uniform CSF reduction and fewer fines.
Maintenance Tips for Corrugated Lines
- Screen baskets: Inspect every 3-4 weeks for slot wear. Replace when slot width increases by 0.03mm
- Refiner plates: Expected life 3-6 months depending on OCC quality. Monitor motor load for early wear signs
- Pulper rotors: Annual inspection of vane wear; replace when clearance exceeds 3mm
- Wire section: Check tension weekly; uneven tension leads to sheet profile issues
Why Choose Leizhan for Your Corrugated Line?
With installations in over 50 countries, Zhengzhou Leizhan Technology delivers complete corrugated paper making solutions from waste paper feeding to finished reel. Our equipment is engineered for low operating cost per ton, easy maintenance with locally available spare parts, and flexible furnish handling — mixed OCC, DLK, and local waste grades.
📧 Contact us at leizhanequipment@gmail.com for a customized corrugated paper making line quotation tailored to your mill requirements.