Under the leadership of PM’s technical team, several domestic leading papermaking enterprises have recently completed energy-saving upgrades by replacing traditional equipment with permanent magnet motors (PMMs). Focused on low-efficiency production lines, this upgrade leverages PMM technology to significantly enhance energy efficiency, setting a new benchmark for green transformation in the industry.

Four Core Equipment Upgrades Demonstrate Remarkable Efficiency Gains

The retrofit project covers critical production links in papermaking, including:

Low-Concentration Continuous D-Type Beater

• Replacing asynchronous motors improves starting torque by 20% and optimizes pulp crushing efficiency, achieving annual energy savings of 15%-20%.
• Photo caption: Before-and-after comparison of the beater, highlighting PMM’s compact design.

Pressure Screen System

• PMM drives reduce mechanical losses, enhance screen precision by 10%, and cut energy consumption by 25%.
• Photo caption: Pressure screen in operation with energy-saving data标注.

Stirrer

• High-efficiency PMMs enable precise speed control without additional变频器energy loss, delivering over 30% energy savings.
• Photo caption: Stirrer comparison before and after retrofit.

Water Ring Vacuum Pump Replacement with Magnetic Suspension PMT

• Revolutionary design eliminates lubrication systems, reduces frictional losses to near-zero, and achieves 40%-50% annual energy savings with 60% lower maintenance costs.
• Photo caption: Magnetic suspension PMT working principle diagram/installation site.

Technical Advantages & Customer Benefits

High Energy Efficiency: Average energy savings across all retrofitted equipment exceed 30%. For a single production line operating 8,000 hours annually, this translates to over RMB 1 million in annual electricity cost savings.
Reliability: PMMs require minimal maintenance, reducing failure rates by 70% compared to traditional motors and minimizing downtime losses.
Intelligent Integration: IoT-enabled remote monitoring optimizes real-time operational parameters, supporting customers in building digital production systems.
Comment from a Senior Production Director at a Leading Papermaker:
“PM’s technical solution balances innovation with practicality. Post-retrofit energy performance meets international standards, while reduced vibration and noise levels have significantly improved workshop safety and comfort.”

About PM Company

PM is a globally-oriented papermaking technical service provider headquartered in China, dedicated to delivering cutting-edge, cost-effective intelligent manufacturing and energy-saving solutions worldwide. With decades of expertise in industrial automation and energy optimization, PM empowers paper enterprises to achieve sustainable production transformations.