Straightener / Leveler
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This page explains how Upper Roll Bank is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
The upper set of rolls in a straightener/leveler machine that applies downward pressure to flatten and straighten metal sheets or strips.
Technical details and manufacturing context for Upper Roll Bank
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Number of Rolls | 5–11 pcs | Determines leveling quality; more rolls for thinner materials. |
| Roll Diameter | 40–200 mm | Smaller diameter for thin sheets, larger for thick plates. |
| Roll Body Length | 800–2500 mm | Must match the maximum sheet width. |
| Roll Material | 42CrMo4 | Hardened and ground for wear resistance.DIN EN 10083-3 |
| Roll Hardness | HRC 58–62 | Higher hardness improves durability and surface finish. |
| Roll Surface Roughness | Ra 0.2–0.4 μm | Affects the final sheet surface quality.ISO 4287 |
| Adjustment Stroke | 50–150 mm | Range for adjusting roll gap to accommodate different thicknesses. |
| Adjustment Accuracy | ±0.05 mm | Precision of roll gap setting for consistent leveling. |
| Operating Temperature | -40–85 °C | Non-condensing environment; avoid extreme temperatures. |
| Motor Power | 15–75 kW | Depends on material strength and width. |
| Weight | 3000–15000 kg | Includes rolls, frame, and adjustment mechanism. |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Max 5000 kN (1124 kips) per roll, typical operating 1000-3000 kN (225-674 kips) |
| roll speed: | 10-100 m/min (33-328 ft/min) depending on material thickness and straightness requirements |
| temperature: | Ambient to 150°C (302°F) for standard seals, up to 250°C (482°F) with high-temp options |
| roll deflection: | Max 0.1 mm/m (0.0012 in/ft) under full load |
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.
Manufacturer profiles associated with Upper Roll Bank.
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The upper roll bank applies downward pressure on metal sheets or strips as they pass through the leveler. Together with the lower roll bank, it induces alternating bending stresses that remove distortions like coil set and wavy edges, achieving flatness.
The number of rolls typically ranges from 5 to 11. More rolls are used for thinner materials to achieve finer leveling, while fewer rolls with larger diameters are suitable for thicker plates. The exact number depends on the material thickness and required flatness.
Common roll materials include alloy steel, tool steel, and chrome-plated steel. A typical material grade is 42CrMo4 per DIN EN 10083-3, with a hardness of HRC 58-62 and surface roughness Ra 0.2-0.4 μm. These properties ensure wear resistance and surface quality.
The listed parameters are reference ranges. Actual values depend on the specific machine model, material properties, and application. Verification with the legal manufacturer or supplier ensures correct selection and safe operation.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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