QCS stands for Quality Control System, a core online monitoring and control device for paper machines. It continuously measures critical paper parameters such as moisture content, basis weight and caliper via integrated sensors. The system feeds real-time data back to the control unit for dynamic adjustments. It effectively maintains uniform paper quality, lowers defective rates and operating costs, and has become an indispensable part of automated paper production lines worldwide.
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T/TColor :
As Customer RequiredShipping Port :
China PortLead Time :
3 MonthsMin. order :
1 SetThe detection/execution equipment of DCQCS system includes scanning rack system, concentration sensor, flow sensor and various intelligent control valves, which are the foundation of QCS-ZQSMART system.
| Scanning speed: | 50-500mm /S (continuously adjustable) |
| Measurement speed: | 2500 measurements /S |
| Probe frame rotation Angle: | ±19º |
| Quantitative detection | |
| Detection range: | ≤ 700g/㎡ |
| Detection accuracy (static): | 2σ≤ 0.15gsm |
| Detection accuracy (dynamic): | 2σ≤ 0.25gsm or 2σ≤0.10% Quantitative value, Whichever comes first |
| Control accuracy: | 2σ≤1.5% × Target value or improvement rate≥ 50 %, Whichever comes first; |
| Stability: | continuous working 24 hours, drift does not exceed the basic accuracy. |
| Moisture detection | |
| Detection range: | 1%~20% |
| Detection accuracy (static): | 2σ≤0.10% Moisture value |
| Detection accuracy (dynamic): | 2σ≤0.15% Moisture value or maximum minimum deviation≤0.30% Moisture value, Whichever comes first |
| Control accuracy: | 2σ≤0.5% Target value or improvement rate≥ 50 %, Whichever comes first; |
| Stability: | continuous working 24 hours, drift does not exceed the basic accuracy. |
1. Dynamic detection accuracy assessment method: Fix a piece of paper in the scanning frame, run the probe from the left limit to the right limit, calculate the average value, repeat 20 times, and calculate 2σ for the 20 gathered data sets.
2. Control accuracy test: Take several rolls of paper and sample each roll of paper (generally 20) banner quantity and moisture average for 2σ calculation.