Motor for Textile Machine

Product Overview

This high-efficiency permanent magnet synchronous motor offers IP54 high torque density, available in frame sizes 80–355, and covers a power range of 0.55–450 kW. The motor uses rare earth neodymium iron boron permanent magnets to establish the rotor magnetic field, requiring no excitation current. Its rated operating efficiency is ≥IE5 (GB30253-2013 Level 1) and maintains over 90% efficiency even in the low-speed, high-torque range.

 

The IPM (Inner-Peripheral Permanent Magnet) rotor topology fully utilizes reluctance torque, increasing rated torque density by over 30%.

 

Output torque is 1.5-2 times higher than traditional asynchronous motors of the same frame size, while reducing size by one to two frame sizes and weight by 30%. This provides a "small footprint, high torque" solution for space-constrained machine tool spindles, extruders, lifting mechanisms, and other applications.

The entire unit achieves IP54 protection rating and Class F insulation. It comes standard with an IC411 high-efficiency fan (an optional IC416 independent fan is available for ≥55 kW, 3000 rpm). The chassis is constructed of extruded aluminum alloy or cast iron, with a double-layer epoxy-powder finish. Passing a 720-hour salt spray test, it can operate long-term in high-dust, high-humidity environments.

Equipped with a WN90T series inverter, it achieves constant power flux-weakening speed regulation from 0-200% rated load and 0-200% base speed. Built-in torque feedforward and slip compensation algorithms enable 200% rated torque output at speeds as low as 1 Hz, meeting the complex operating conditions of "low-speed, high-torque starting and high-speed, constant power operation."

The company holds over 80 patents and 18 provincial-level industrial new products. It is certified to ISO9001 for quality, ISO14001:2015 for environmental, and ISO45001 for occupational health. Its products are certified to China 3C, US UL, Canadian CUL, Australian SAA, and EU CE and ROHS.

Textile Industry

① Motors for circulation fans in textile printing and dyeing machines.

② Motors for textile texturing machines.

Industry and Energy

① Mining/Steel Mill Equipment: Single units with power up to 260kW, cascading to MW-class, suitable for direct-drive systems.

② Breeze Power Generation: Low wind speed start-up (force 3) with a wide high-efficiency range, suitable for small and medium-sized wind turbines.

High-End Equipment

① Robotic Joints: High torque density and precise control, supporting integrated harmonic reduction design.

② Aerospace: Lightweight and high power density meet the requirements of drones and electric aircraft.

Case 1

• Location: Daqing Oilfield
• Motor Model: JNPM520-30-255
• Key Parameters:
• Power: 30 kW
• Torque: 1,123 N·m
• Speed: 255 RPM

Case 2

• Location: Daqing Oilfield
• Motor Model: JNPM290-30
• Power: 30kW
• Torque: 286N ·m
• Speed: 1000 RPM

Case 3

• Location: Production equipment for textile printing and dyeing factories
• Motor Model: JNPM173-7.5
• Key Parameters:
• Power: 7.5kW
• Torque: 49 N·m
• Speed: 1450 RPM

Company Advantages

 

The company is committed to building its brand. Through years of hard work, its "Weidi" trademark has been recognized as a "Famous Trademark of Zhejiang Province" and its "Weidi" brand motors have been designated as "Famous Brand Products of Hangzhou." The company has also been recognized as a "Science and Technology Enterprise of Zhejiang Province," a "Patent Demonstration Enterprise of Zhejiang Province," a "Made-in-Zhejiang Product," a "Specialized, Specialized, and Innovative Enterprise of Zhejiang Province," a "National High-Tech Enterprise," and a "National Intellectual Property Advantage Enterprise." It also has established a provincial-level enterprise research institute.

The company actively leverages customer support and its own efforts to continuously improve product quality, enhance product visibility and reputation, and further develop its expertise, strength, and scale in the high-end equipment and smart home motor industries.

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