ENNENG Expands Permanent Magnet Generator Range: New 5kW-300kW PMG Series for Wind, Hydro and Off-Grid Power

ENNENG Broadens Its Permanent Magnet Generator Lineup

Qingdao Enneng Motor Co., Ltd. (ENNENG), a permanent magnet machine manufacturer since 2014, announces an expanded permanent magnet generator series spanning 5kW to 300kW for wind turbines, hydro stations, marine vessels and off-grid hybrid power systems.

The series is built on NdFeB rare earth magnets, gearless direct-drive architecture and application-specific cooling, with CE and ISO9001 certification and full factory test reports on every model.

Series Overview: Five Platforms, One Standard

The expanded permanent magnetic generator series covers five technology platforms so buyers can match the machine to the duty cycle rather than over-specifying a generic alternator:

• Water-cooled PMG (up to 300kW): liquid-cooled frame and 100% pure copper winding for continuous 24/7 duty with a 20-year design lifespan.
• Axial flux direct-drive PMG (20kW class): pancake rotor delivering high torque at 200rpm for gearless wind and low-head hydro.
• Radial flux low-speed PMG (5kW class): 150rpm, 220V output purpose-built for micro hydro and pico hydro turbines.
• Marine IP67 PMG (100kW class): sealed, corrosion-protected frame for ships, yachts and offshore platforms.
• Grid-tie / off-grid PMG (10kW-15kW class): low-noise dual-mode machines and 48V DC models for home backup and solar-wind hybrid systems.

Why the Expanded Range Matters to Buyers

Most suppliers offer either small battery-charging machines or large industrial alternators, leaving a gap in the 5kW-300kW renewable segment. ENNENG's new permanent magnet generator series closes that gap:

Key Technical Features Across the Series

Every machine in the expanded permanent magnetic generator range shares a common engineering core:

• NdFeB rare earth magnets: no excitation winding, no AVR, no slip rings or brushes to maintain.
• High efficiency: 95-97% across partial and full load, reducing fuel and water-flow cost.
• Gearless direct drive: multi-pole rotors couple straight to turbine or engine shafts, eliminating gearbox loss and wear.
• Long service life: 20-year design lifespan on water-cooled models with Class H insulation and IP54-IP67 protection.
• Application-matched cooling: water-cooled, forced-air or natural-cooled frames selected by duty cycle.

Applications

Wind Turbine Permanent Magnet Generators

For small and medium wind turbines, the series provides low-rpm machines that feed grid-tied inverters or charge batteries without a gearbox, improving annual energy yield in low-wind regions.

Hydro Permanent Magnet Generators

Pico, micro and small hydro stations can couple a low-speed permanent magnet generator directly to the turbine shaft. Generation starts as soon as the water wheel turns, simplifying off-grid electrification for villages and farms.

Marine and Genset Auxiliary Power

IP67 corrosion-resistant models serve as ship shaft generators or auxiliary excitation sources, delivering stable three-phase output in salt-air environments.

Home Backup and Hybrid Systems

Low-noise grid-tie/off-grid machines and 48V DC models pair with solar arrays and battery banks for residential backup and remote telecom power.

Customisation and Quality Assurance

ENNENG customises voltage (220V to 690V), frequency, speed, shaft dimensions and mounting arrangements for OEM projects. Each permanent magnet generator is balanced to low vibration grades and shipped with a test report; a three-year warranty covers the complete machine.

FAQ

Q: Can ENNENG supply a complete wind or hydro generation set?
A: Yes. Besides the permanent magnet generator, we can match rectifiers, inverters and controllers, or work with your system integrator.

Q: What is the lead time for the 5kW-300kW series?
A: Standard models ship within 15-45 days after deposit; custom voltage and shaft options are confirmed per project.

Q: Do water-cooled models really last 20 years?
A: The 20-year figure is a design lifespan based on NdFeB magnet stability, pure copper winding and corrosion protection under rated operating conditions.

About ENNENG

Qingdao Enneng Motor Co., Ltd. (ENNENG), founded in 2014, designs and manufactures permanent magnet wind and hydro generators, AC permanent magnet motors and low-speed high-torque direct drive motors. The company is headquartered in Qingdao, Shandong, China, and exports worldwide.

Contact us today to request specifications, samples or a quotation for your wind, hydro, marine or off-grid project.