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The 50-roll hydraulic leveling machine is designed for leveling standard metal sheets ranging from 0.8 to 5 mm in thickness. Its hydraulic system delivers powerful, linearly adjustable pressure, enabling rapid correction of sheet defects such as waviness, twisting, and warping. It is suitable for processing a variety of materials, including carbon steel, stainless steel, and alloy sheets. The equipment features a four-column guide structure for smooth, drift-free operation. The upper roller assembly employs a hydraulic floating design that adapts to different sheet thicknesses for adaptive leveling, effectively improving processing consistency. The machine offers a high degree of automation, supports manual/automatic mode switching, and allows for the presetting of multiple sets of process parameters, significantly enhancing batch production efficiency. The roller surfaces undergo precision polishing to preserve the sheet’s surface finish, making it suitable for processing hardware products, enclosures, lighting fixtures, and other components. The machine features a rational layout with a moderate footprint, low operational and maintenance barriers, and built-in fault self-diagnosis capabilities to minimize downtime risks, making it ideal for large-scale continuous production scenarios.
High-rigidity frame ensures consistency: The prestressed steel frame can withstand a 200-ton load without deformation, ensuring uniform pressure across 2.5-meter-wide sheets ranging from 0.5 to 2.5 mm in thickness. Even with high-strength automotive body panels, flatness remains stable within 0.05 mm/meter.
Rapid Roll Gap Adjustment: Hydraulic actuators adjust the roll gap in 5 seconds with 0.01-millimeter increments, enabling quick switching between processing 0.5-millimeter copper and 2.0-millimeter steel, making it suitable for mixed-line production of multiple product varieties in home appliance manufacturing.
Closed-loop flatness control: A laser scanner at the discharge port continuously monitors flatness and feeds the data back to the hydraulic system. If deviations exceed 0.1 mm/m, the system automatically adjusts pressure to correct waviness or warping, reducing scrap rates to below 0.5%.
Overload Protection System: When the load exceeds 250 tons, the relief valve activates within 0.1 seconds to prevent roller damage caused by accidental overloading, extending roller service life to over 30,000 hours.
600 | 1000 | 1300 | 1600 | 1900 | 2100 | |
Diameter of leveling roller | 50 | 50 | 50 | 50 | 50 | 50 |
Number of leveling rollers | 23 | 23 | 23 | 23 | 23 | 23 |
The shortest workpiece length for flattening Lmin (mm) | Lmin=100 | Lmin=100 | Lmin=100 | Lmin=100 | Lmin=100 | Lmin=100 |
Nominal thickness of leveling material T (mm) | 0.8-5.0 | 0.8-5.0 | 0.8-5.0 | 0.8-5.0 | 0.8-5.0 | 0.8-5.0 |
Maximum thickness of flattening material Tmax (mm) | Tmax=10 | Tmax=10 | Tmax=10 | Tmax=10 | Tmax=10 | Tmax=10 |
Leveling accuracy | The parameters are calculated according to the material Q235/yield strength 235MPa, and the length and width are detected within 1m | |||||
0.01-0.05mm | 0.01-0.05mm | 0.01-0.05mm | 0.01-0.05mm | 0.01-0.05mm | 0.01-0.05mm | |
Straightening line speed (m/min) | Speed adjustable at 1-10m/min | |||||
voltage | AC three-phase 380V | |||||
Optional Accessories | 1.Pulling out the flattening roller downwards (convenient for roller quick change and surface cleaning) | 4.Four/six times leveling roller | 7.Number of leveling rollers | |||
2.Pulling out the leveling roller (convenient for roller quick change and surface cleaning) | 5.Automatic loading/unloading manipulator/palletizing robot | 8.Uncoiler - Hydraulic/Mechanical Cutting Line | ||||
3.Pulling out the roller up and down (convenient for roller quick change and surface cleaning) | 6.Feeding and discharging roller assembly line: with/without power | 9.Uncoiler - laser cutting blanking line | ||||
Customized requirements | Customer customization requirements are acceptable | |||||
Remarks | Straighten the pressing gap of materials, input relevant parameters through the touch screen, and the equipment will automatically adjust. | |||||
Safety Check: Put on personal protective equipment, confirm that the emergency stop button is reset, and ensure the guard is securely locked.
Fluid Check: Check the hydraulic oil level and lubrication lines to ensure they are normal and free of leaks.
Check Roll Surfaces: Ensure roll surfaces are free of metal shavings, welding slag, or other hard objects to prevent damage to the sheet metal.
Idle Run: Start the hydraulic power unit and main motor, and let them idle for 2–3 minutes, listening for any unusual noises.
Setup: Enter the sheet thickness and material type; the system will automatically (or manually) adjust the roll gap.
Test Flattening: Feed a test sheet and fine-tune the pressure based on the output result (upward warping or downward concavity) until the sheet is flat.
Strictly Prohibit Stacking: Only feed one sheet at a time.
Strictly Prohibit Overspeeding: Maintain a constant feeding speed; avoid sudden changes in speed.
Strictly Prohibit Touching: Never reach into the roller assembly or touch moving parts while the machine is running.
Strictly Prohibit Operating with Malfunctions: If unusual noises, vibrations, or abnormalities on the sheet surface are detected, stop the machine immediately for inspection.
Clean the Rollers: Remove metal shavings from the roller surfaces and surrounding areas, and apply rust-preventive oil.
Clean the Work Area: Disconnect the power supply, fill out the operation log, and keep the environment tidy.
