This page explains how Paper Machine Dryer Section is classified within Paper Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
The dryer section is a critical component in paper manufacturing machines that removes residual moisture from the paper web after the press section.
Technical details and manufacturing context for Paper Machine Dryer Section
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Number of CylindersRequired | 20–60 units | Total drying cylinders in section |
| Cylinder DiameterRequired | 1500–2500 mm | Standard cylinder outer diameter |
| Maximum Steam TemperatureRequired | 180–220 °C | Highest allowable steam temperature |
| Web Width CapacityRequired | 3000–10000 mm | Maximum paper web width supported |
| Drying Rate | 10–30 kg H₂O/m²·h | Water evaporation rate per area |
| Maximum Operating Temperature | 200–250 °C | Exceeding may cause thermal deformation of cylinders. |
| Steam Consumption | 1.2–2.5 t steam/t paper | Lower consumption indicates better energy efficiency. |
| Drive Power | 50–200 kW | Depends on number of cylinders and web width. |
| Temperature Control Accuracy | ±2 °C | Precise control ensures uniform drying and paper quality. |
| Cylinder Material | HT250 | Cast iron with good thermal conductivity and wear resistance.GB/T 9439 |
| Machine Weight | 50–200 t | Heavier machines require stronger foundations. |
| Footprint (L×W×H) | 20×5×4–40×8×6 m | Larger footprint may be needed for maintenance access. |
| Electrical Supply | 380–690 V AC | Voltage depends on regional grid and motor ratings.IEC 60038 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Paper Machine Dryer Section.
| pressure: | 0-10 bar (steam pressure range) |
| flow rate: | 100-1000 m/min (paper web speed) |
| temperature: | 100-180°C (typical steam heating range) |
| slurry concentration: | 40-55% solids after pressing (input to dryer) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
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A practical evidence checklist for RFQ preparation and supplier evaluation.
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The number of cylinders typically ranges from 20 to 60, depending on the paper grade and production speed. The exact count is determined by the required drying capacity and machine design.
The maximum steam temperature is typically 180-220°C. However, the maximum operating temperature may be up to 200-250°C, but exceeding this can cause thermal deformation of cylinders. Always confirm the safe limits with the manufacturer.
Steam consumption ranges from 1.2 to 2.5 tonnes of steam per tonne of paper. Lower consumption indicates better energy efficiency. Actual values depend on the paper grade, machine design, and operating conditions.
Common materials include carbon steel for cylinders, cast iron for bearings, stainless steel for frames, ceramic coatings for wear resistance, and thermal insulation. Cylinders are often made of cast iron (e.g., HT250) for good thermal conductivity.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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