500 m/min Operation High-Precision Writing Paper Machine
The writing paper machine is the core equipment for producing high‑grade newsprint and writing paper. Its performance depends on stable formation, precise drying, and real‑time quality control. Our paper making machine integrates a state‑of‑the‑art QCS system that continuously measures basis weight and moisture across the full 2640 mm web width.
The paper production equipment uses a Kr85 radioactive source for non‑contact basis weight measurement with a range of 20‑1000 g/m² and a microwave sensor for moisture detection from 0‑20 percent. A unique Z‑axis deformation compensation system corrects for thermal distortion of the scanning frame, maintaining measurement accuracy even when the upper beam heats up due to hot paper. The paper industry machinery also features a horizontal misalignment compensation system and a constant‑temperature air gap control to eliminate environmental interference. This paper making line operates at 500 m/min and delivers a cross‑direction moisture profile improvement of over 60 percent, significantly reducing broke and energy consumption. The open system architecture allows seamless communication with DCS and drive systems via ProfiNET and OPC, making it an ideal choice for modern paper processing lines.
Technical Specifications of Our Writing Paper Machine
| Parameter | Value |
|---|---|
| Paper grades | Writing paper, newsprint |
| Basis weight range | 100 – 300 g/m² |
| Moisture target | 6 – 8% |
| Reel width | 2640 mm |
| Operating speed | 500 m/min |
| Basis weight sensor type | Kr85, 200 mCi, measuring range 20‑1000 g/m² |
| Basis weight measurement accuracy (2σ) | ≤ ±0.15 g/m² or ±0.15% |
| Moisture sensor type | Microwave, non‑contact, dual‑band |
| Moisture measurement accuracy (2σ) | ≤ ±0.15% |
| Scanning speed | 50 – 550 mm/sec (variable frequency) |
| Scanning frame design | ┝‑shaped column, H‑shaped manganese steel |
| Compensation systems | Z‑axis deformation, horizontal misalignment, constant‑temperature air gap |
| Control system | Siemens S7‑1500 PLC + PCS7, ProfiNET |
| Operator station | DELL/Lenovo i5, 8GB RAM, 27″ monitor |
| Quantitative control improvement | ≥60% |
| Moisture control improvement | ≥60% |
| MTBF (control system) | >40,000 hours |
Zhengzhou Leizhan Technology Paper Machinery Co., Ltd. supplies complete paper mill lines with integrated QCS systems tailored to writing and newsprint grades. Our turnkey paper production line includes the high‑precision sensors, scanning frame, and control software, all pre‑configured and factory‑tested. We work with Sichuan Gaoda Technology to deliver reliable quality control solutions that reduce waste and improve profitability. Contact us to equip your paper making machine with advanced automation and achieve superior sheet uniformity.
Contact: leizhanworld@gmail.com