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50 Series Four-Column Hydraulic Intelligent Precision Leveling Machine

JingShi 50 Series hydraulic leveling machine for 0.8-5mm metal sheets. Features 4-column rigidity & intelligent control for ±0.01mm flatness. Request a quote.

Product Overview

The JingShi 50 Series Four-Column Hydraulic Intelligent Precision Leveling Machine is not just a machine; it is a comprehensive solution engineered to tackle the most stubborn internal stresses in metal sheets (0.8mm - 5mm). Unlike conventional leveling machines that rely on manual guesswork, our 50 Series integrates a robust four-column integral body structure with a high-response hydraulic servo system.

This machine is designed for manufacturers who cannot afford tolerance errors. The four-column design eliminates frame deformation under high pressure, ensuring that the force applied to the sheet is uniform across the entire width. By combining hydraulic power with intelligent algorithms, it achieves a leveling accuracy of ±0.01-0.05mm, effectively eradicating post-stamping warping, wavy edges, and springback effects. This level of precision is critical for high-end sectors where "near-perfect flatness" is not optional, but mandatory.

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Width of standard series 600 900 1000 1300 1600 1900 2100
Diameter of leveling roller 50 50 50 50 50 50 50
Number of leveling rollers 23 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 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 0.8-5.0
Maximum thickness of flattening material Tmax (mm) Tmax=10 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 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.

Deep Dive: Technical Advantages & Functional Features

Why Choose the 50 Series for Medium-Thick Plates?

Traditional leveling machines rely on blind operation with no real-time feedback, making consistent results dependent entirely on operator experience. The 50 Series changes the equation entirely by putting full visibility and precise control in the operator's hands.

With an integrated digital display showing live processing pressure and exact roll gap distance, operators can make precise, incremental adjustments for any material—from High-Strength Steel to Aluminum—while the robust hydraulic drive ensures consistent leveling results and a significantly lower skill threshold compared to purely mechanical machines.

Technical Deep Dive

1. Rigid Four-Column Structure

Detail: Monolithic casting four-column frame design.

Why it matters: Stability is the mother of precision. Unlike C-frames, the four-column structure prevents deflection even when processing high-yield-strength materials, ensuring uniform force distribution from the center to the edges of the plate for consistent leveling results across the entire surface.

2. Real-Time Data Visualization & HMI

Detail: Integrated digital display with live dashboard and 100-recipe storage.

Why it matters: Control is visual. Operators can monitor real-time hydraulic pressure, roller gap distance, and processing speed at a glance. The ability to store and retrieve up to 100 job recipes means that once a perfect setting is found for a specific part—like an automotive panel—it can be replicated flawlessly every time, eliminating guesswork on repeat jobs.

3. Multi-Layer Safety Protection

Detail: Overload protection + plate misalignment detection sensors.

Why it matters: Safety is hardwired into the design. Beyond the standard emergency stop, the overload protection automatically halts operation if pressure exceeds safe limits, while the misalignment detection sensors prevent damage to both the workpiece and the machine—protecting your investment and your team simultaneously.

Industry Applications: Solving Real-World Pain Points

Automotive & Transportation: Surface defects are unacceptable in this sector. The 50 Series removes the "orange peel" effect caused by stamping on automotive structural parts and body panels, ensuring a flawless finish ready for painting or coating.

Heavy Machinery & Engineering: For manufacturers dealing with hot-rolled plates and alloy steel components, internal stress is the enemy of welding and assembly. This machine relieves internal stress, preventing parts from warping after cutting or welding and saving costly rework.

Aerospace & Precision Engineering: When handling expensive titanium alloys or high-precision machine tool parts, the ±0.01mm accuracy ensures that components meet strict tolerance requirements, preventing assembly failures where the cost of error is highest.

FAQ

Q: Can the 50 Series process high-strength steel or aluminum alloys?

A: Absolutely. The 50 Series is specifically engineered with a rigid four-column structure and a high-pressure hydraulic system (1.5-2.5Mpa). This allows it to effectively correct internal stresses in various medium-thick materials, including high-strength steel plates, alloy plates, and hot-rolled sheets. The intelligent control system automatically adjusts leveling parameters based on the material's yield strength, ensuring perfect flatness without damaging the material surface.

Q: How does the "Intelligent Parameter Matching" feature work? Do I need to manually adjust the rollers?

A: Our intelligent system significantly simplifies operation. Simply input the material type and thickness into the digital HMI, and the system's built-in algorithm automatically calculates the optimal roll gap and pressure from its database. This reduces setup time by up to 70% and eliminates human error, making it easy even for new operators to achieve ±0.01-0.05mm precision without tedious manual adjustments.

Q: What is the maximum and minimum thickness this machine can handle?

A: The 50 Series is optimized for medium-thick metal sheets ranging from 0.8mm to 5mm. If your production involves materials thicker than 5mm (up to 16mm), we recommend contacting our engineers for a customized heavy-duty solution, as processing thicker plates requires different roller diameters and higher tonnage.

Q: Do you offer a free material testing service before purchase?

A: Yes, we highly encourage it. Simply send us samples of your specific workpieces (e.g., stamped parts or wavy sheets). Our technical team will run a complete leveling test using the 50 Series, record a high-definition video of the process, and provide a detailed flatness report—ensuring the machine perfectly matches your production needs before you place an order.

Q: How do you ensure the machine's precision remains stable over long-term use?

A: Stability comes from our superior manufacturing process. The machine body undergoes two rounds of annealing treatment to completely eliminate internal stress, preventing frame deformation over time. The leveling rollers are made of high-grade bearing steel with a surface hardness of HRC62-65, offering exceptional wear resistance and ensuring consistent leveling accuracy for years of continuous operation.

Q: What kind of after-sales support and warranty do you provide?

A: We provide comprehensive global support. The machine comes with a standard 1-year warranty for the whole unit and extended coverage for core hydraulic components. We offer remote video guidance for installation and commissioning, and maintain a full inventory of spare parts—including rollers, hydraulic valves, and sensors—that can be shipped within 48 hours to minimize any potential downtime for your factory.

Founded in 2016, Suzhou JingShi Intelligent Equipment Co., Ltd. is an integrated high-tech enterprise combining research, manufacturing, and trade. Sheet Leveling Machine Manufacturers and Hydraulic Automatic Leveling Machine Suppliers. We focus on deliver high precision, efficiency, and stability to global manufacturers.
Our core team brings over a decade of expertise in metal forming and finishing, mastering system-level R&D from structural design to hydraulic control and automation integration. Custom Hydraulic Precision Sheet Leveling Machine. We drive growth through technological innovation and continuous improvement.
JingShi Intelligent
Technology Leads, Precision Craftsmanship
JingShi Intelligent boasts a strong R&D team comprising mechanical designers, hydraulic engineers, and automation experts, capable of end-to-end system development from structural design to full line control. We are China Hydraulic Intelligent Automatic Sheet Leveling Machine Suppliers. With a manufacturing area of 2,557.97 m² and advanced assembly and inspection facilities, we operate under strict quality management standards.
Each machine undergoes comprehensive testing — including flatness precision, load performance, and noise assessment — to ensure long-term stability and reliability that meets international requirements.
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