17-Roll High-Strength Plate Levelling Machine | EZHONG, Hubei, China

EZHONG 17-Roll High-Strength Plate Levelling Machine – Precision Levelling for Armour and High-Strength Plate

EZHONG's 17-roll levelling machine is the most precise leveller in the range, built for high-strength plate, where EZHONG reports it's mainly used for levelling armour (ballistic) steel. Seventeen closely spaced rolls bend the plate repeatedly in gradually decreasing amounts, turning multiple different curvatures into one and then flattening it. What sets this machine apart is its drive: a coaxial double-drive system powers all 17 work rolls from both ends at once, halving the torque on each universal shaft and raising the safety margin when levelling hard, high-strength material. Two side rolls extend the range to both thin and thicker plate.

Double-Ended Group Main Drive

• Four planetary reducers connect through gear couplings to a distribution gearbox (ratio 1:1)
• All 17 work rolls are driven from both ends simultaneously
• Driving from both ends halves the torque carried by each universal joint shaft
• This raises the safety factor of the drive shafts, which matters when levelling very strong plate that resists bending

Key Features

• 17 work rolls for fine, high-accuracy levelling
• Two side rolls allow non-parallel levelling of both thin and thicker plate, widening the working range
• Beam positioning by two motors: running together raises and lowers the upper beam, running separately tilts it
• Feed and exit tables controlled from the console, electrically reversible and speed-synchronised with the leveller
• Industrial computer control with digital display, plus PLC and touch screen
• Recipe memory: store, recall and edit parameters by plate thickness, width and strength, with power-off memory
• Automatic roll gap setting from plate scanning before entry
• Rolling-mill-grade bearings on all work roll journals, with a stated 5–10 year service life
• Digital display of upper roll stroke to ±0.1 mm
• Integral welded steel frame, designed in SolidWorks 3D
• Built to EC safety standards with CE certification

Work Roll Quality

• 60CrMoV alloy steel rolls to JB/T 3164-2007
• Quenched and tempered to HBW 286–321, surface hardened to HRC 56–63
• Hardened depth of 3–5 mm (rolls up to 200 mm diameter) or 6–10 mm (over 200 mm)
• Ground to h6 tolerance, Ra 0.8 μm finish
• Each roll inspected twice, with material, heat treatment and flaw inspection reports supplied

Technical Specifications (to be confirmed with EZHONG)

• Type: Seventeen-roll high-strength plate levelling machine
• Series: W43C
• Drive: Group main drive, coaxial double drive from both roll ends
• Levelling accuracy: 1.0 mm/m² (as listed)
• Work rolls: 60CrMoV, HRC 56–63
• Control: Industrial computer with PLC and touch screen
• Certification: CE
• Width, thickness, yield strength and speed: EZHONG's page currently shows the 13-roll machine's specs; confirmed figures to follow

Applications

• Armour and ballistic steel plate for protective vehicles and structures
• Ultra-high-strength and wear-resistant plate
• Construction and mining machinery components
• Precision plate for aviation, instrumentation and stainless steel products
• Steel service centres needing the highest flatness

Which EZHONG Leveller Fits?

• 7-roll (EZW43T-80x3000): Very thick plate up to 80 mm
• 9-roll (EZW43T-40x3000): Medium-heavy and clad plate up to 40 mm
• 13-roll (EZW43B-10x3000): Thin plate up to 10 mm, 3 m wide
• 15-roll (EZW43B-8x1500): High-strength plate up to 1,600 MPa
• 17-roll (this machine): Armour and high-strength plate needing the finest levelling

Commercial Details

• Brand: EZHONG
• Manufacturer: Hubei Heavy Industry Equipment Co., Ltd
• Place of origin: Ezhou, Hubei, China
• Certification: CE

Frequently Asked Questions

• What is this machine mainly used for? EZHONG reports it's mainly used for levelling armour (bulletproof) steel plate, along with other high-strength steels.
• Why drive the rolls from both ends? It halves the torque on each universal joint shaft, giving a higher safety margin when levelling very strong plate.
• Why 17 rolls? More rolls with closer spacing bend the plate more times in smaller steps, giving the finest flatness, which is important for thin and high-strength plate.
• What do the side rolls do? They allow non-parallel levelling, so the machine handles both thin and thicker plate.
• What should I send for a quotation? Plate grade and yield/tensile strength (including armour grades), thickness and width range, required flatness and throughput, and your local voltage and frequency.