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Variable Cross-Section Rolling Mill
  • Variable Cross-Section Rolling Mill
  • Variable Cross-Section Rolling Mill
  • Variable Cross-Section Rolling Mill

Variable Cross-Section Rolling Mill

The variable cross-section rolling mill features a large, robust archway structure and an integrated base plate, ensuring exceptional equipment rigidity and high transmission precision while significantly reducing operational vibrations
Equipped with rollers featuring a 220mm body diameter, the machine offers a service life approximately 10% longer than domestic equivalents, complemented by various reliable jaw structures providing high clamping force for stable processing
The equipment demonstrates superior processing versatility, supporting long cone lengths from 200mm to 1m (thickness 10mm–62mm) and short cones within 200mm, with no width restrictions on short cone processing
Available in 500KW and 650KW power configurations, the mill enables high-efficiency output across various specifications; for example, it can achieve a rapid production cycle of 22 seconds for 1670×800mm plates
Utilizing advanced cold-end positioning, the system allows for quick product variety changes by simply adjusting the rear positioning, and includes reserved interfaces for seamless integration into a fully automatic production line with customized auxiliary equipment
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Long cone length range: 1m-200mm
Thickness range of long cone: 10mm-62mm
Steel plate short cone length: within 200mm
Steel plate heating temperature: 950±30℃
Short cone width range: unlimited
Short cone width range: unlimited
Single-sided opening, double-sided opening, annular opening, adjustable opening

Heating width

Heating thickness

Heating length

beat

Specification

power

beat

power

beat

60 MM

12-25 MM

from 500mm-1000mm

20sn

20*60*800

500KW

26

650KW

22S

70 MM

12-25 MM

from 500mm-1000mm

20sn

16*70*800

500KW

26S

650KW

22S

70 MM

25-40MM

from 500mm-1000mm

30sn

32*70*800

500KW

40S

650KW

31S

75 MM

40-62 MM

500mm

35sn

50*75*500

500KW

42S

650KW

32S

80MM

18-35 MM

from 500mm-1200mm

30sn

30*80*1000

500KW

54S

650KW

42S

80MM

35-55 MM

from 500mm-1100mm

35sn

50*80*1000

500KW

90s

650KW

70s

90MM

20-35 MM

from 500mm-1200mm

30sn

30*90*1000

500KW

60s

650KW

48S

90MM

35-55 MM

from 500mm-1000mm

35sn

50*90*800

500KW

80s

650KW

62S

100MM

18-35 MM

from 500mm-1200mm

35sn

30*100*1000

500KW

70s

650KW

53S

100MM

35-56 MM

from 500mm-1000mm

40sn

50*100*800

500KW

90s

650KW

70s

120MM

20-35 MM

from 500mm-800mm

40sn

30*120*700

500KW

58S

650KW

45S

120MM

36-45 MM

from 400mm-600mm

40sn

40*120*600

500KW

65S

650KW

52S

 


Features:
1. The main frame structure is large and robust, ensuring sufficient equipment rigidity.
2. The roll diameter is 220mm, and its service life will be 10% longer than that of similar domestic rolling mill rolls.
3. Multiple jaw structures provide strong clamping force; simple and reliable structure.
4. An integral base plate improves transmission accuracy and reduces vibration.
5. The equipment uses cold-end positioning; adjustments to the positioning are sufficient when product types change.
The range of auxiliary equipment is complete and the design is thoughtful. Users can freely choose the auxiliary equipment matching scheme according to different types of leaf springs. Interfaces can also be reserved to add auxiliary equipment when needed to form a diversified combination of automated production lines.







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About Us
Wuxi Weineng Automation Technology Co., Ltd.
Wuxi Weineng CNC Technology Co., Ltd., located in Wuxi, the Pearl of Taihu Lake, covers an area of ​​6,000 square meters and currently employs over 60 people. In 2016, the company's founding team began researching and developing complete sets of equipment for automotive leaf springs, hot-coiled springs, and stabilizer bars. To date, they have been deeply involved in this industry for 10 years and are recognized as a specialized, innovative, and distinctive enterprise in this field by the Ministry of Industry and Information Technology.
The company integrates R&D, production, sales, and service. Its main products include complete sets of automotive leaf spring equipment and stabilizer bar equipment, including stabilizer bar end induction heating equipment, stabilizer bar thermoforming induction heating equipment, hollow stabilizer bar double-end induction heating equipment, hollow bar resistance conduction heating production lines, stabilizer bar secondary vulcanization production lines, and hot-coiled spring equipment. The company also provides users with complete induction heating automated production lines.
Over the years, the company has served leading domestic enterprises such as Shanghai China Spring Manufacturing Co., Ltd., Huawei Technology Co., Ltd., Zhejiang Meili Technology Co., Ltd., Zhejiang Jinsheng Auto Parts Co., Ltd., Chengdu ThyssenKrupp Fawer Spring Co., Ltd., Pinghu ThyssenKrupp (Pinghu) Automotive Stabilizer Bar Co., Ltd., and Liaoyang ThyssenKrupp Fawer Spring Co., Ltd., earning high praise for its products and services. Furthermore, the company has exported its equipment to countries such as Turkey, South Korea, India, Brazil, Egypt, Dubai, Iran, Africa, Tunisia and Morocco. "Professionalism, precision, innovation, and integrity" are the development concepts that the company has always adhered to. While continuously strengthening its own scientific research capabilities, it has formed stable industry-university-research cooperation with many universities. It has been repeatedly rated as a high-tech enterprise and a specialized and innovative enterprise. In the future, the company will continue to deepen its research and development in the automotive leaf spring, automotive guide arm, automotive stabilizer bar and spring industry equipment, provide the spring industry with more professional, intelligent and sophisticated equipment products, and contribute to the high-quality development of the global automotive leaf spring, automotive stabilizer bar and hot-coil spring industries.

News

  • Company News Apr. 01. 2026

    The Specialized, Sophisticated, Innovative and Unique Benchmark in the Field of Automotive Spring Equipment

    With a professional and focused attitude, Wuxi Wei Neng NC Technology Co., Ltd. has created a legendary story of being specialized, sophisticated, innovative and unique in the field of automotive leaf spring, stabilizer bar and spring equipment.As a comprehensive enterprise integrating R&D, production, sales and service, Wuxi Wei Neng NC Technology Co., Ltd. has built a full industry chain product portfolio. It provides a complete range of products, including complete sets of equipment for automotive leaf springs and stabilizer bars, stabilizer bar end induction heating equipment, hot forming heating equipment, hollow bar resistance conduction heating production lines, secondary vulcanization production lines, and complete sets of hot coil spring equipment. The company can also customize complete sets of automatic induction heating production lines to offer customers one-stop solutions.
  • Company News Apr. 01. 2026

    The Technology Leader in Automotive Spring Automation Equipment

    On the precise track of auto parts manufacturing, induction heating and automatic forming technologies are the core keys to determining product quality and production efficiency. With 10 years of technological accumulation and innovative breakthroughs, Wuxi Wei Neng NC Technology Co., Ltd. has become a technology leader in the field of complete sets of equipment for automotive leaf springs, stabilizer bars and hot coil springs, injecting strong momentum into automotive spring manufacturing with cutting-edge technology.Having deeply rooted in the industry for a decade, Wuxi Wei Neng NC Technology Co., Ltd. fully understands the process pain points and technical demands of automotive spring manufacturing, and has created an industry-leading full-range product portfolio. Its core products cover three major fields: complete sets of equipment for automotive leaf springs, complete sets of equipment for automotive stabilizer bars, and complete sets of equipment for hot coil springs. Each type of product embodies the R&D wisdom and craftsmanship of the team.
  • Industry News Apr. 01. 2026

    Core Driving Forces Behind Technological Upgrades of Automotive Spring Equipment

    Technological upgrades of current automotive spring equipment are mainly driven by the in-depth transformation of the automotive industry toward electrification, lightweighting and intelligence, as well as the industry’s higher requirements for production efficiency, product quality and environmental protection. The superposition of multiple driving forces promotes continuous breakthroughs in equipment technology.With the rising penetration rate of new energy vehicles, the increased weight of batteries has driven a rapid surge in demand for suspension springs with larger diameters and higher strength. Traditional spring production equipment can hardly meet the requirements of durability and quality uniformity under high-load conditions. Meanwhile, the pursuit of longer cruising range in new energy vehicles has spurred a sharp demand for spring lightweighting. The application of new materials such as magnesium-aluminum alloys and composite materials has forced technological upgrades of spring equipment to adapt to the processing requirements of new materials. In addition, the popularization of 800V high-voltage platforms has raised higher requirements for springs in terms of signal compatibility and corrosion resistance, further driving spring equipment toward precision and customization.
  • Industry News Apr. 01. 2026

    Future Development Trends of Automotive Spring Equipment Technology

    Combined with the development trend of the automotive industry and technological innovation, future automotive spring equipment will further focus on precision, intelligence, flexibility and green development, while moving toward the direction of whole-industrial-chain collaboration and customized R&D. Specifically, it will present four major trends. First, continuous improvement of precision. As advanced autonomous driving imposes higher requirements on vehicle dynamic control accuracy, the manufacturing tolerance standards for springs will be further tightened. Future spring equipment will focus on optimizing precision control technology to achieve higher-precision dimensional control and mechanical performance regulation, while enhancing equipment stability and reliability to meet the production needs of high-end automotive springs. Second, in-depth integration of intelligence and informatization. Future spring equipment will further integrate technologies such as the Internet of Things, big data and artificial intelligence to realize full-process intelligent control of production. By collecting real-time production data, it will optimize process parameters, predict equipment failures, and improve production efficiency and product quality. At the same time, the equipment will realize informatized linkage with upstream and downstream production links, build a production system featuring whole-industrial-chain collaboration, and achieve integrated management from raw material procurement to finished product delivery.
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