| Item | Content |
|---|---|
| Customer | Shanghai Zhenhua Heavy Industries (ZPMC) |
| Country | China |
| Industry | Marine Equipment |
| Equipment | EZW43T-120x3000 7R |
| Machine Type | 7-Roll Plate Levelling Machine |
| Material Yield Strength | 485 MPa |
| Plate Thickness | 25-120 mm |
| Maximum Plate Width | 3,000 mm |
| Levelling Rolls | 7 Rolls |
| Total Corrective Force | 136,000 kN |
Shanghai Zhenhua Heavy Industries (ZPMC) is a leading heavy equipment manufacturer with extensive production capabilities in marine and offshore equipment. Its large-scale manufacturing operations involve the fabrication of heavy steel structures and components, requiring reliable plate processing equipment for demanding production conditions.
For this project, ZPMC selected an EZW43T-120x3000 7-Roll Plate Leveling Machine from EZHONG for heavy steel plate processing.
The machine is designed for levelling steel plates with a material yield strength of 485 MPa, covering plate thicknesses from 25 to 120 mm and a maximum working width of 3,000 mm.
For this project, the customer required a solution capable of providing:
Based on ZPMC's processing requirements, EZHONG supplied the EZW43T-120x3000 7-Roll Plate Levelling Machine.
| Item | Specification |
|---|---|
| Machine Model | EZW43T-120x3000 7R |
| Machine Type | 7-Roll Plate Levelling Machine |
| Material Yield Strength | 485 MPa |
| Plate Thickness | 25-120 mm |
| Maximum Plate Width | 3,000 mm |
| Levelling Roll Configuration | 7 Rolls-4 Up / 3 Down |
| Working Rolls | 5-2 Up / 3 Down |
| Working Roll Distance / Diameter | 800 / 660 mm |
| Working Roll Barrel Length | 3,200 mm |
| Guide Rolls | 2-Upper |
| Guide Roll Distance / Diameter | 800 / 600 mm |
| Backup Roll Arrangement | 3 Columns x 6 Rows |
| Movable Cross Beam Stroke | +300-0 mm |
| Pressing Speed | 20 mm/min |
| Levelling Speed | 2.4-6.0 m/min |
| Correction Accuracy | 1.0mm/m |
| Main Motor Power | 5.7 kWx5 + 18.5 kWx2 |
| Total Corrective Force | 136,000 kN |
| Testing Platform | 2 Sets, 40 t Capacity Each |
| Relative Elevation of Leveling Roll Surface | ±800 mm |
| Machine Dimensions (L x W x H) | 12x7.0x9.2 m |
The 4-up / 3-down roll arrangement provides multiple points of contact with the plate during the leveling process, enabling controlled correction of heawy steel plates.
With a specified total corrective force of 136,000 kN, the machine is configured for demanding heavy-plate leveling applications.
The machine accommodates plates up to 120 mm thick and 3,000 mm wide, providing the processing capacity required for large marine equipment components.
Two motorized discharge roller tables, each 10 m long, are provided for plate handling. The roller system uses PLC control and variable-speed regulation to support controlled material transfer.
Two testing platforms are provided, with each platform designed for a 40-ton load capacity, supporting inspection and testing operations for heavy plates.
From material strength and plate thickness to working width and required levelling accuracy, every heavy plate levelling application requires a properly engineered machine configuration.
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