Wolong's permanent magnet direct drive technology empowers top paper industry customers to achieve cost reduction, efficiency improvement and green development

The paper industry is traditionally a high energy-consuming sector. Drive equipment used in processes such as pulping, streaming, and paper forming often adopts an "asynchronous motor + gearbox" configuration, which results in high energy consumption, low efficiency, and significant transmission losses. Against the backdrop of increasingly stringent global carbon neutrality goals and industrial energy efficiency regulations, the adoption of high-efficiency motors has become a core breakthrough for companies to ensure compliance, reduce costs, and improve efficiency.

Key demands from traditional paper enterprises

Reduce production costs:

-    Enterprises urgently need to lower rising electricity costs for production;

-    Reduce equipment maintenance costs in the drive system, lower spare parts inventory and cut expenses for maintenance labor.

Improve operational efficiency:

-    Enhance equipment reliability to reduce unplanned downtime.

Mature technical scheme:

-    Proven technology with reliable after-sales support.

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As a global core supplier of electric drive equipment, Wolong leverages its proprietary core technologies to provide a leading paper industry customer with customized motors, drive control systems and process control packages, covering the entire service process from technical adaptation and commissioning to operation and maintenance.

This project is located at a paper industry base in Indonesia, featuring humid, high-temperature, and dusty working condition. It adopts Wolong's low-speed, high-torque permanent magnet direct drive motors and a dedicated drive control system, and has completed production line integration and commissioning.

Core Technical Highlights

-    Customized Design: The equipment is specifically designed for the operating conditions of paper industry production lines. It adapts to ambient temperatures ranging from -10°C to 50°C, features a motor protection rating of up to IP66, and adopts water cooling. It meets S1 continuous duty requirements, with bidirectional rotation and low-speed, high-torque operation.

-    High Performance Indicators: The system employs vector control with an encoder, achieving speed accuracy of ±0.25%. The overall drive system efficiency is ≥95%, with energy savings up to 25%. Equipment operating noise is ≤85 dB(A). The variable frequency drive (VFD) includes multiple protection functions, and the system's mean time between failures (MTBF) is no less than 50,000 hours.

-    High-specification components: Core components include SKF bearings, Baosteel silicon steel sheets, and high-performance NdFeB permanent magnets. These high-quality materials ensure long-term reliability and high performance of the equipment.

Wolong provides a complete set of equipment including permanent magnet synchronous direct drive motors, frequency conversion control cabinets, PLC control system, human-machine interface(HMI) and cooling system, with complete technical documentation and qualification files. Additionally, Wolong commits to an after-sales guarantee of "24-hour response and on-site dispatch within 72 hours."

Results Delivered: Cost Reduction, Efficiency Improvement, and a Green Win-Win

After implementing Wolong's complete permanent magnet direct drive solution, system operating efficiency increases by 20% to 40% compared to traditional asynchronous drive solutions. The solution simplifies conventional mechanical transmission structures, significantly reduces equipment failure rates, improves overall system reliability, and makes installation and routine maintenance more convenient. Additionally, the equipment operates with low noise and low energy consumption, improves the production site environment, and supports the customer's low-carbon and emission reduction goals.

Wolong has now entered into multi-plant new construction and upgrade collaboration with this paper industry customer, continuously empowering the customer's energy savings, consumption reduction, quality improvement, and production increase through its robust permanent magnet direct drive technology, and helping the paper industry embark on a new journey of green, low-carbon, and sustainable development.