OPD Servo Motor & Energy-Saving System Co., Ltd.

product center

OPD-Energy Saving Master

With extensive industry expertise and a high output of advanced machinery, OPD provides tailored solutions to meet the unique needs of every customer.

servo direct drive motor

The application of our servo direct-drive motors in paper machines has demonstrated impressive energy savings of 25% to 38%. These motors are designed to operate more efficiently than traditional systems, reducing power consumption while maintaining consistent and reliable performance. The integration of our motors helps reduce operational costs and minimize the environmental footprint of paper production.

Stock Preparation Equipment

Machinery for preparing raw materials, such as pulp, for the paper production process.

A new realm of pulping: The servo - direct - drive empowers the digester with precise control. Every steaming process is a sublimation of quality, yielding stable and high - quality pulp.

Driver & Frequency Converter

Devices that control the speed and power of motors to optimize performance.

Self-Balancing Double Shoe Press

The Chinese Technological Solution for Shoe Pressing

Shoe pressing technology has always been the pinnacle of papermaking technology.
Paper produced by shoe pressing has excellent quality, good bulk, and high folding endurance.
To increase the speed of the paper machine, the dryness after pressing must be increased, and shoe pressing technology is the bottleneck for high-speed paper machines.
For every 1% increase in dryness after shoe pressing, steam consumption is reduced by 5%.
Such a technology that improves product quality, increases production, and saves energy is undoubtedly highly desirable.
However, this technology is mainly controlled by two Fortune 500 companies: Finland's Valmet and Germany's Voith.
OPD Group bravely took on the challenge. In 2023, Oupeder accepted the "Shoe Pressing Technology" project from the Jiangmen Science and Technology Bureau, proposing a "Self-Balancing Composite Double Shoe Press" technology to replace the foreign "Controlled Crown Roll Shoe Press" technology.

OPD Self-Balancing Double Shoe Press: Revolutionizing the Paper Industry

The OPD Self-Balancing Combi-Double Shoe Press is a cutting-edge innovation in the paper manufacturing sector.

I. Technical Superiority

Unique Pressure Balance Design: By symmetrically or approximately symmetrically placing shoe plates around the center roll, it achieves an efficient balance of pressure. This design minimizes stress on the equipment structure and ensures stable and reliable operation during high-intensity paper production processes.

Advanced Double Shoe Press Configuration: The paper web undergoes sequential pressing through two shoe presses. This not only doubles the pressing width but also eliminates the risk of rewetting during transfer. As a result, it attains an outstanding average pressing dryness of 55.22%, approaching the physical limit and effectively reducing steam consumption per ton of paper.

II. Product Benefits

Enhanced Paper Quality: The double pressing process optimizes the fiber structure within the paper. The second shoe press prompts the opening of fiber fine hairs, enhancing air permeability and bulkiness. This leads to better drying efficiency, improved sizing penetration, and significantly enhanced folding endurance, ensuring the paper's durability and usability in various applications.

Cost Savings: In terms of energy consumption, compared to traditional shoe press technologies, it reduces the need for a large motor when achieving the same pressure width. For a 6.6-meter paper machine, this results in substantial electricity savings over time. Additionally, the higher pressing dryness reduces steam consumption by approximately 25%, translating into significant cost reductions in the long run.

Increased Productivity: With the enhanced dryness of the paper web entering the drying section, the paper-making speed can be increased by over 25%. This allows paper mills to boost production capacity without incurring additional management costs, directly increasing profit margins.

In conclusion, the OPD Self-Balancing Combi-Double Shoe Press offers a comprehensive solution for paper manufacturers, combining improved product quality, reduced costs, and increased productivity, and is set to redefine the standards of the paper industry.

Step Back in Time: A 10-Year-Old Production Line in Action