200-roll Hydraulic Leveling Machine

Product Introduction

In the fields of heavy equipment manufacturing and precision sheet metal processing, the 200mm-diameter hydraulic leveling machine is more than just a piece of equipment—it is the ultimate solution for eliminating internal stresses in metal sheets. Unlike traditional mechanical leveling methods, this machine is specifically designed to handle sheets with high yield strength, extreme thickness (10mm–65mm), and severe residual stresses. Leveraging the exceptional rigidity and contact advantages provided by its 200mm ultra-large-diameter roller system, combined with the flexible pressure control of the hydraulic system, it performs a deep “microstructural reconstruction” of the metal sheet. This process completely eliminates defects such as waviness, sickle bend, and edge warping, imparting perfect geometric form and a stable internal structure to the material. Actual test data shows that even for 65mm-thick Q355B steel plates, flatness can be easily controlled within 0.2mm–0.3mm after leveling with this equipment.

Product Advantages:

• 1. Extra-large-diameter, heavy-duty roller structure with industry-leading rigidity and stability. Φ200mm reinforced solid rollers, combined with a multi-layer dense support roller layout, significantly enhance the roller’s bending strength. This prevents bending and deformation when processing ultra-thick plates, completely resolving the common issues of central waviness and end warping found in traditional models. The machine boasts a longer service life and superior precision retention under heavy-load conditions.

• 2. Hydraulic Servo Closed-Loop Control: Dual Assurance of Precision and Safety An independent hydraulic servo system drives the pressing mechanism, ensuring precise positioning and rapid response. It intelligently distributes leveling pressure based on sheet material and thickness, preventing damage from excessive pressure or insufficient leveling. Equipped with real-time pressure monitoring, overload protection, and self-diagnostic functions, it significantly reduces equipment failure rates and operational risks.

• 3. Optimized Leveling Process for Thick Plates, Ensuring Thorough Stress Relief: Unlike general-purpose leveling machines, this machine employs a large-diameter, progressive multi-pass leveling principle. This allows for more thorough release of internal stresses in thick plates and high-strength steel. After leveling, the plates are less prone to springback and exhibit higher dimensional stability, enabling them to proceed directly to subsequent welding, machining, or assembly processes, thereby improving overall finished product yield.

• 4. Intelligent operation reduces reliance on experience. Equipped with an industrial touchscreen control system, it supports the storage of multiple sets of process parameters and one-click recall, making changeovers and debugging simple and fast. New operators can quickly get up to speed without relying on senior operators, effectively improving production continuity and on-site management efficiency.

Technical Specifications

Product Applications

The 200 Series Super-Heavy-Duty Hydraulic Leveling Machine, with its powerful leveling capability and exceptional precision control, is primarily used in heavy industry sectors with stringent requirements for plate flatness. It serves as a critical piece of equipment for ensuring the quality of high-end equipment manufacturing.

Shipbuilding and Offshore Engineering

• Specifically designed for processing extra-long, extra-wide, and thick steel plates used in ship hull decks, bulkheads, and keels. It effectively eliminates residual stress and natural curvature in hot-rolled coils after uncoiling, ensuring assembly precision for large ship structural components and minimizing subsequent welding distortion.

Heavy Machinery Manufacturing

• Suitable for the pre-treatment of plates used in critical structural components such as excavator booms, crane undercarriages, shield machine cutterheads, and mining machinery bodies. By eliminating residual stresses within the plates, it prevents workpiece deformation during welding and machining, thereby enhancing the structural strength and service life of the equipment.

Energy and Pressure Vessels

• In the manufacturing of wind turbine towers, nuclear power pressure vessels, and large storage tanks, it ensures the absolute straightness of the plates used for cylindrical assembly. High-precision leveling significantly improves assembly accuracy, reduces weld defects, and ensures the safety and reliability of pressure vessels.

Bridges and Building Steel Structures

• Used for leveling thick plates in bridge main girders, joint plates, and high-rise building steel structures. It resolves issues such as wave bending and sickle bending caused by rolling or cutting, ensuring the assembly accuracy and overall stability of steel structural components.

Uncoiling, Leveling, and Shearing Production Line

• As the core unit of an automated production line, it integrates with equipment such as uncoilers, shearing machines, and stackers to achieve continuous, automated leveling and cut-to-length processing of steel coils, significantly improving production efficiency and reducing labor costs.