Hubei Heavy Industry Equipment Co., LTD.
Hubei Heavy Industry Equipment Co., LTD.

15 Rolls Levelling Machine

Leveling Sheet
Plate Leveling Machine
Plate Straightening Machines

EZHONG jaw weight CNC leveler adopts the patented technology of sub-roller drive (patent number: 99 2 37340.9), that is each main drive is driven by an independent motor reducer, which solves the mechanical interference between the plate and the drive roller. The negative torque problem extends the life of the work roll and protects the surface of the work roll.

The adoption of the sub-roller drive technology enables the medium and heavy plates to also realize the correction method under linear decompression, which improves the mechanical efficiency and the correction accuracy of the one-pass machine, which conforms to the steel plate correction law. As the bending amount is gradually reduced, compared with the large bending shape of parallel bending, the total deformation of the material is reduced. Therefore, the total corrective force and total power consumption will be reduced, thereby saving energy consumption.

By changing the number of work rolls (Patent No.: 03 1 01384.8), the number of rolls participating in leveling can be changed between n+ 2 and n, so as to take into account the non-parallel leveling requirements in a large range from thin to thick plates and expand the machine The scope of corrective work.

The use of a pressing device that combines mechanical and hydraulic pressure makes the leveling sheet equipment have the advantages of correcting and pressing, adjusting the pressing amount at any time, and accurately controlling the pressing amount and high pressing efficiency. Adopt an integral closed frame and rationally arrange the ribs to significantly increase the rigidity of the whole leveling sheet.

The Specification Of 15 Rolls Leveling Machine


Useful Width

Yield Limit

Max. Thickness

Leveling Accuracy








The Details Of EZHONG 15 Rolls Leveling Machine

- Advanced CNC control system, we own the software copyright of the system. The system automatically calculates the amount of pressing based on the thickness.

- Adopt drive patent. The sheet leveler divides the work rolls into two groups. Each group of work rolls is driven by a motor and a reducer, with high efficiency, simple operation, and a single person can work independently.

- The overall structure is segmented and modular. Wearable parts such as bearings, seal rings, support rollers, and work rollers are easy to replace.

- Due to the use of grouped drive patents and self-aligning bearings, the power of the main motor is small and energy can be saved. Save man-hours and minimize the scrap rate and rework rate, eliminating the need for time-consuming and laborious rework.

- 10-inch high-precision touch screen display, PLC control, visual input, editing, modification, and storage of process parameters; adjust the descending point up and down.

- Manufactured in accordance with EC safety standards and has CE certification.

Notes For Setting EZHONG 15 Rolls Leveling Machine Control System

1. There are always n-2 deformations when the plate is leveled. When the second roller is deformed for the first time, it should be ensured that 60% of the plate thickness is in a plastic deformation state, and the deformation of the subsequent rollers decreases successively until the elastic deformation (the deformation is zero).

2. According to the characteristics of the maximum load, the selected work roll has a large roll distance and roll diameter, and the rigidity of the straighten machine is good and the sheet leveling accuracy is guaranteed. Take into account the maximum and minimum plate thickness leveling. The work roll journals of this machine all adopt precise rolling mill special bearings, the friction resistance of the work roll is small, the non-slip condition is greatly improved, and the thinner steel plate can be straightened. The roller-making device adopts the technology of the German SMS company, with a large roll diameter to roll pitch ratio, which improves the strength of the work roll, reduces the blind correction zone, and improves the leveling accuracy of the workpiece. Roller journals all adopt special rolling bearings for new rolling mills, with a service life of 5 to 10 years. The selection, structural design, and manufacturing of the work roll bearing coupling parts should ensure reliability and durability, and fully consider the axial and radial load and deformation of the work roll. 

3. Compared with the sliding bearing, the transmission efficiency is high, and the motor power can be doubled. Energy-saving; long service life, a small overturning moment of the frame, low friction resistance, with the sub-roller drive, can effectively improve the slip of the workpiece, bend thinner steel plates, and improve the sheet leveling accuracy. The adjustment and positioning of the gap and angle of the upper and lower work rolls are accurate and efficient, and the guiding mechanism has good precision and high stability.

4. The work roll material is 60CrMoV, according to the standard requirements of "JB/T3164-2007 Roller Plate Leveling Machine Technical Conditions", quenched and tempered HBW286~321, surface hardening hardness HS85-95 (HRC56-63), hardened layer depth, work roll diameter D≤200mm is 3~5mm, D>200mm is 6~10mm, the roughness is 0.8μm, and the dimensional tolerance reaches h6.

5. Work roll process: blanking → forging → normalizing after forging → rough turning → quenching and tempering → finishing turning → surface quenching → fine grinding to surface tolerance h6, surface roughness Ra0.8μm

6. After the initial and finishing processing, the work roll shall be inspected twice, and the material inspection report, heat treatment inspection report, and flaw inspection report shall be provided.

7. The working stroke of the upper work roll adopts an electronic digital display (display accuracy is ±0.1mm).

The Advantages Of 15 Rolls Levelling Machine

Optimal rational design

Use a large number of advanced manufacturing technologies to carry out SOLIDWORKS full three-dimensional digital design, etc.;

Intelligent control method: PLC+touch screen+button, all working parameters can be set in the man-machine interface, with parameter memory, storage, power-off memory functions.

Human machine interconnection

The control system of the metal fabrication equipment has the functions of storing, recalling, editing process and equipment parameters. When using, leveling sheet can set the inlet and outlet reductions according to the parameters such as plate thickness, plate width, material strength, etc., and realize automatic adjustment.

Automatic adjustment device for the opening of the leveler.

Before the plate enters the leveling sheet, the plate thickness, width, and material are measured by scanning the plate information processing unit, and the signal is transmitted to the electrical control cabinet. The opening amount calculation is automatically performed, and the opening amount of the leveling sheet is adjusted. The value is confirmed after correction. Make adjustments again.

The whole  leveling sheet adopts integral steel plate welding, which is thick and beautiful, and has good stability.

Accurate processing performance can ensure stable and high-quality leveling effect.

The Application Of 15 Rolls Levelling Machine

The Application Of 15 Rolls Levelling Machine

EZHONG leveling sheet is used to straighten various specifications of plates and cut them into blocks. This leveling sheet is suitable for the leveling of various cold and hot rolled plates. Because of its convenient and simple operation, the application range of leveling sheet covers many industries such as machinery, metallurgy, building materials, chemicals, electronics, electric power, light industry, etc., especially in shipbuilding, rolling stock, boiler bridges, metal structure factories and other industries, becoming indispensable in production Essential products.

Related EZHONG W43B Leveling Machine


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