Liming Heavy Industry PMD Permanent Magnet Direct-Drive Intelligent European Trapezium Mill Makes a Grand Debut

Liming Heavy Industry’s PMD Permanent Magnet Direct-Drive Intelligent European Trapezium Mill arrives with core permanent magnet direct-drive technology and a full-chain intelligent system. Powered by technological innovation and built on superior quality, it redefines high-efficiency pulverization through precise design. With core advantages, it addresses the demands of industrial upgrading, turning every grinding operation into a dual upgrade of efficiency and value. It sets a new benchmark for efficiency and opens up new paths for upgrading in the global pulverization industry.

Permanent Magnet Direct-Drive: Disrupting the Traditional Transmission Landscape

The launch of the new-generation PMD Permanent Magnet Direct-Drive Intelligent European Version Mill marks a major breakthrough in grinding mill technology. For the first time, this model applies a permanent magnet direct-drive motor to pendulum mills, completely disrupting the traditional transmission mode and achieving deep integration of the power system and intelligent control.

Permanent magnet direct-drive technology delivers stronger and more stable power output for the grinding mill, significantly improves the reliability of the transmission system, and greatly reduces system power consumption. It features higher grinding efficiency, lower overall energy consumption, and longer service life.

Compared with traditional Raymond mills, the energy efficiency of the PMD Permanent Magnet Direct-Drive European Version Mill is increased by 30%, leading to a substantial reduction in production and operation costs.

Core Advantages Redefine High-Efficiency Grinding Standards

From power output to operation and maintenance control, from precision grinding to quality and efficiency improvement, the new-generation PMD Permanent Magnet Direct-Drive Intelligent European Trapezium Version Mill redefines high-efficiency grinding standards with five core advantages.

Permanent Magnet Direct-Drive Motor: Powerful & Energy-Saving, A Benchmark in Drive

By eliminating the energy loss inherent in traditional transmissions, the motor directly drives the main unit, greatly improving power transmission efficiency. It delivers stable and reliable operation, reduces failure risks, and achieves 15% overall energy saving, establishing itself as a core benchmark for energy-saving upgrades in the industry.

Thin Oil Lubrication + Intelligent Lubrication: Long-Lasting Protection, Uninterrupted Operation

The grinding rollers adopt oil lubrication technology, coupled with an intelligent lubrication system, realizing online lubrication for the classifier, main unit and all motors without shutdown. This ensures 24-hour continuous and stable operation.

High-Performance Fan: Energy-Saving & Efficient, Strong Power

The system is equipped with a new high-performance direct-drive fan. While ensuring sufficient air volume and pressure, pneumatic efficiency is increased by 15%, saving 8–10% electricity compared with traditional fans.

New Classifier: Precision Grinding & High-Purity Finished Products

The new classifier features improved structure and sealing, with upgraded airflow velocity. It delivers both high classification efficiency and precision, resulting in superior finished product quality.

Multi-Point Online Monitoring: Intelligent Early Warning, Stable Quality & Output

The whole machine is equipped with multi-point intelligent sensors to collect key operating data in real time, with intelligent analysis and fault early warning to avoid unplanned downtime, ensuring uniform and stable finished powder quality.

Intelligent Cloud Platform + APP Control: Remote Management, Global Intelligent Control

Equipped with an intelligent cloud platform, it realizes full-link collection, analysis and visualization of operating data. It supports remote control via mobile APP or PC, including start/stop and parameter adjustment, enabling unmanned operation, intelligent management, lower labor costs and higher management efficiency.

Working Principle: Unlocking the Code of Eco-Friendly Grinding

Qualified crushed materials are fed uniformly, quantitatively and continuously into the grinding chamber of the main unit via a variable-frequency belt feeder for grinding. The ground materials are carried by the fan airflow into the classifier for classification. Under the action of the classifier, materials that do not meet the fineness requirement fall back into the grinding chamber for re-grinding, while qualified materials flow with the airflow through pipelines into the cyclone collector for separation and collection.

The finished powder is then discharged through the finished product conveying device. The separated air returns to the fan through the return air duct at the top of the cyclone collector. The entire system operates under negative pressure, and the equipment is equipped with a pulse dust collector that meets national environmental protection standards.

Material Adaptability for Stable Multi-Material Grinding

It can efficiently process various non-flammable and non-explosive materials with Mohs hardness below 7 and moisture content less than 6%, including quicklime, limestone, calcite, gypsum, dolomite, kaolin, barite, petroleum coke, etc. With broad material adaptability, it achieves precise multi-material grinding to fully meet diverse production requirements.

Full-Sector Coverage Empowering Industrial Upgrading

With its strong adaptability, the PMD Permanent Magnet Direct-Drive Intelligent European Version Mill is widely applied in core industries such as building materials, metallurgy, electric power, chemical engineering, new energy and new materials.

It covers mainstream and segmented scenarios including large and medium-sized non-metallic ore grinding, environmental desulfurization, clean coal powder production, petroleum coke grinding, etc., providing customized solutions for industrial upgrading across all sectors.

The birth of PMD Permanent Magnet Direct-Drive Intelligent European Trapezium Mill marks not only a new milestone in technological innovation for Liming Heavy Industry, but also a powerful testament to China’s grinding equipment advancing toward “smart manufacturing”.

As a national green factory and a national quality benchmark enterprise, Liming Heavy Industry will continue to uphold its sense of responsibility and strict standards. We will further deepen our focus on the grinding field, provide global customers with higher-quality total solutions, and join hands with industry partners to create a brilliant future for the grinding industry!