The pressure vessel industry covers the manufacturing of pressure vessels, storage tanks, heat exchangers, reactors, boiler shells, and related components such as heads and flanges. These products are widely used in petrochemical, nuclear power, pharmaceutical, and new energy industries, where safety, durability, and structural integrity are critical.
To meet strict international standards such as ASME and domestic industrial regulations, manufacturers must process thick steel plates (10–300 mm) and form large-diameter cylindrical structures (up to 12 meters) under both cold and hot forming conditions. These components often operate under extreme environments, including high pressure, high temperature, and corrosive media, which place extremely high demands on forming accuracy and welding quality.
Key manufacturing challenges include poor rolling accuracy of thick plates, difficulty in controlling roundness tolerance (≤2 mm/m), and excessive internal stress during forming. These issues directly affect sealing performance, pressure resistance, and long-term operational safety of pressure vessels.
The Plate Rolling Machine is the core equipment in pressure vessel fabrication, responsible for forming cylindrical shells, storage tank bodies, and heat exchanger shells.
In pressure vessel production, plate rolling machines are used to:
Roll thick steel plates into precise cylindrical shells
Form large-diameter storage tanks and pressure vessels (Φ1–12 m)
Ensure strict roundness control (≤2 mm/m)
Improve welding alignment and sealing performance
Reduce material deformation and internal stress
With the increasing demand for large-capacity storage tanks (up to 500 m³), modern pressure vessel manufacturing requires highly rigid and CNC-controlled rolling systems capable of stable, repeatable, and high-precision forming.
In pressure vessel applications, even minor deviations in geometry can lead to serious safety risks. Therefore, CNC-controlled plate rolling technology plays a key role in ensuring:
Stable curvature and consistent forming quality
Precise control of cylinder roundness and diameter
Reduced human error in heavy plate forming
Higher efficiency for batch production
Compatibility with ASME-compliant manufacturing processes
High-strength and ultra-thick steel plates require multi-pass controlled rolling to achieve the required cylindrical geometry while maintaining structural integrity.
EZHONG provides high-performance ultra-thick plate rolling machines designed specifically for pressure vessel manufacturing.
Key specifications and advantages:
Maximum plate thickness: up to 300 mm
Maximum plate width: up to 4500 mm
Cylinder diameter range: Φ1–12 m
Roundness accuracy: ≤ 2 mm/m
Single forming cycle: ≤ 60 minutes
Fully compliant with ASME pressure vessel standards
ZHONG plate rolling machines are widely used for:
Pressure vessel shells
Storage tank cylinders
Heat exchanger shells
Reactor and boiler drum structures
With high rigidity frame design and CNC precision control, the equipment ensures stable deformation control during rolling, significantly improving weld quality and final structural safety.
https://www.zhanghuaji.com
brief introduction: Zhangjiagang Chemical Machinery Co., Ltd. ( "ZCM")was established in 1998 and changed into a joint stock company in July 2009. The company is specialized in the design and manufacturing of petrochemical industry, coal chemical industry, fine chemical industry, metallurgy, medicine, photovoltaic energy, nuclear power, Marine equipment and military industry.
EZHONG product application:
EZW11S-270*3500 heavy plate rolling machine
（EZW11S-270*3500 three roller bending machine)
Main Parameter Table
No. | Item | Unit | Data |
1 | Machine Specifications | mm | Xw11s-270/360*3500 |
2 | Maximum Symmetrical Coil Thickness | mm | 270 cold rolling |
3 | Maximum pre-bending thickness | mm | 240 cold rolling |
4 | steel plate yield limit | MPa | 235 |
5 | Minimum workpiece diameter at maximum specification | mm | Φ4500 |
6 | Maximum width of coil | mm | 3500 |
7 | pre-bent remaining straight edge | mm | ≤2.5 times the plate thickness |
8 | Upper roll diameter | mm | 1460 |
9 | Bottom roll diameter | mm | 850 |
10 | Rows of rollers | row | 1 |
11 | Lower roller center distance | mm | 1700 |
12 | Bending speed | m/min | ~3.25 |
13 | The maximum stroke of the horizontal movement of the lower roller | mm | ±350 |
14 | Equipment rated pressing force | Tons | 6000 |
15 | Head overturning angle | ℃ | 90℃ |
16 | Machine dimensions (length, width and height) | mm | 11490×7075×8525 |
http://www.ys-ks.com/?lang=zh_CN
Introduction: Yongsheng Machinery Industry (Kunshan) Co., Ltd. mainly provides all kinds of pressure vessels and services for oil refining, chemical, petrochemical, textile, food and new energy industries, and the products include all kinds of low, medium and high pressure heat exchanger, reactor, separation containers, storage containers. Main customers are constant petrochemical, ShengHong petrochemical, Formosa plastics group, Shanghai secco petrochemical, British color, tripod, xiang lu petrochemical PTA factory, hualian sanxin PTA factory, dow chemical, Germany, Germany, Germany GEA, Germany, contus, America, the FW, American sellanis, Beijing, world, Li Changrong chemical, Changchun group, China, east petrochemical, Asia silicon industry, datang international, Japan, mitsui shipbuilding, YARA navigation technology, China chemical tripod Ningbo engineering company, Chengdu into engineering company, xi'an China land engineering company, etc. Products in addition to domestic sales are also exported to the Middle East, South Asia, North America, South America, Europe, Japan and other countries.
Order EZHONG products application:
EZW11SY-160*3200 heavy plate rolling machine
（EZW11SY-160*3200 heavy plate rolling machine)
Main Parameter Table
NO. | ITEM | UNIT | DATA | |
1 | specifications | mm | 160×3200（245Mpa） | |
2 | The upper roller diameter | mm | 1060 | |
3 | Lower roller diameter | mm | 860 | |
4 | Upper and lower roller material | 42CrMo | ||
5 | Straight edge coefficient | mm | 2.5 Times thick plate | |
6 | Circulating temperature | C | 20 C cold roll | |
7 | Plate yield limit | MPa | 245 | 345 |
8 | The maximum width of the coil | mm | 3200 | 3200 |
9 | Minimum drum diameter at full load | mm | Φ3500mm | Φ3500mm |
10 | maximum thickness of bending plate | mm | 160 | 130 |
11 | Maximum prebending plate thickness | mm | 140 | 110 |
12 | The largest school has a thick board | mm | 125 | 105 |
13 | Two lower roll center distance | mm | 1050～1750 | |
14 | Effective length of the working roller | mm | 3280 | |
15 | Upper roller drives the total torque | t.m | 120 | |
16 | Lower roller drive total torque | t.m | 2*3 | |
18 | Horizontal movement speed of the lower roller cylinder | mm/min | 350 | |
19 | Pressure the cylinder diameter | mm | Ф870/Ф370/630 | |
20 | Total pressure under force | t | 2430 | |
21 | Horizontal push for cylinder diameter | mm | Ф480 | |
22 | horizontal thrust | t | 900 | |
23 | Speed of working on the roller | mm/min | 0～200 | |
24 | The power of the machine | Kw | ≈300 | |
25 | Horizontal movement of the lower roll on each side | mm | 0～650 | |
http://www.yunyizhonggong.com
Introduction: Shandong Yunyi Heavy Industry Co., Ltd. has the U, U2 certification qualification, A1, A2 class pressure vessel design and manufacturing license issued by ASME. Has many years of design and manufacture installation of petroleum, chemical, nuclear power, rubber, steel, thermoelectric, energy conservation, environmental protection and other fields of complete sets of equipment experience, is the national petroleum, chemical equipment industry backbone enterprises, China's council for the promotion of special equipment safety and energy conservation member units, China chemical equipment association director unit, director of special equipment association of Shan dong province.
Order EZHONG products application:
EZW11SYT-160×3500 plate rolling machine
（EZW11SYT-160×3500 plate rolling machine）
Main parameter table
NO. | ITEM | UNIT | DATA | |
1 | specifications | mm | 160×3500（245Mpa） | |
2 | The upper roller diameter | mm | 1060 | |
3 | Lower roller diameter | mm | 860 | |
4 | Lower roller material | 42CrMo | ||
5 | The upper roller is pressed down | The cylinder drive upper roller moves up and down along the vertical guide rail | ||
7 | Straight edge coefficient | mm | 2-2.5 times | |
8 | Circulating temperature | C | Cold rolled at 20 °C | |
9 | Plate yield limit | MPa | 245 | 345 |
10 | The maximum width of the coil | mm | 3500 | 3500 |
11 | Minimum drum diameter at full load | mm | Φ4000mm | Φ4000mm |
12 | maximum thickness of bending plate | mm | 160 | 130 |
13 | Maximum prebending plate thickness | mm | 140 | 110 |
14 | The largest school has a thick board | mm | 125 | 105 |
15 | Two lower roll center distance | mm | 1050～1750 | |
16 | Effective length of the working roller | mm | 3580 | |
17 | Upper roller drives the total torque | t.m | 120 | |
18 | Lower roller drive total torque | t.m | 2*3 | |
19 | Horizontal movement speed of the lower roller cylinder | mm/min | 350 | |
20 | Pressure the cylinder diameter | mm | Ф870/Ф370/630 | |
21 | Total pressure under force | t | 2430 | |
22 | Horizontal push for cylinder diameter | mm | Ф480 | |
23 | horizontal thrust | TONS | 900 | |
24 | Speed of working on the roller | mm/min | 0～200 | |
EZHONG heavy-duty plate forming solutions are designed for industries where safety and precision cannot be compromised. Compared with conventional rolling systems, EZHONG equipment provides:
Higher forming accuracy for thick plates
Better control of roundness and cylinder geometry
Stronger adaptability to ultra-large pressure vessels
Improved production efficiency and stability
Full compliance with international pressure vessel standards
By integrating advanced CNC control and heavy-duty mechanical design, EZHONG helps manufacturers achieve reliable, scalable, and high-precision pressure vessel production.
EZHONG provides customized heavy-duty plate rolling machines for pressure vessel manufacturers worldwide. Whether you are producing large storage tanks, ASME-compliant pressure vessels, or heavy cylindrical components, our engineering team can recommend the most suitable machine configuration based on your production requirements.
We support OEM customization, technical consultation, and project-based equipment supply for thick plate and large-diameter forming applications.
Looking for a reliable plate rolling machine for pressure vessel manufacturing?
Contact EZHONG to get a tailored technical proposal and equipment quotation.
