Xian Putai Electric Motor Equipment Co., Ltd. is one of the leading manufacturers and suppliers of yjtf medium voltage electric motors in China. If you're going to buy CE approved yjtf medium voltage electric motors, welcome to get pricelist from our factory. All customized products are with high quality and low price.
YJTF Series Motor Introduction

The YJTF series medium voltage electric motors high-voltage large AC motor is a variable-frequency three-phase AC motor with a squirrel-cage rotor and a box-type structure. The cooling methods are available in IC01 (natural air cooling) or IC611 (air cooler cooling).
This motor complies with the requirements of GB/T 28562 standard. It adopts a box-type structure welded with steel plates. The structure and installation type of this series of motors are customizable; the rating is based on continuous duty (S1).
The rated frequency of the motor high voltage is 50Hz (60Hz optional). The rated voltage is 6KV, 10KV (4160V, 6600V, 11000V optional). Other voltage levels or special requirements can be negotiated with the user when placing an order.
The motor supports variable-frequency speed regulation flexibly. Taking 50Hz rated frequency as standard, its stable running range covers 20~50Hz under frequency conversion. It realizes stepless speed adjustment, cuts idle power consumption greatly and lowers equipment operating cost for varying load working conditions.
Main Technical Parameters
|
Frame |
H355~H1000 |
|
Power Scope |
160~8000kW |
|
Voltage |
3000V, 3300V, 4160V, 6000V, 6600V, 10000V, 11000V |
|
Frequency |
30~70Hz |
|
Number of Poles |
2P, 4P, 6P, 8P, 10P, 12P, 16P |
|
Speed |
3000rpm, 1500rpm, 1000rpm, 750rpm, 600rpm, 500rpm, 370rpm |
|
Cooling Method |
IC01 IC611 |
|
Protection Grade |
IP23 IP54 |
|
Insulation Class |
F(155℃), H(180℃) |
|
Duty |
S1, S4, S5, S6, S9 |
|
Mounting Type |
B3/V1 |

Advantages
The YJTF series medium voltage electric motors feature outstanding advantages, including energy efficiency, excellent speed control performance, low noise, small vibration, light weight, reliable operation, and convenient installation and maintenance.
Applications
The YJTF series motor is widely used in ventilators, compressors, water pumps, crushers, cutting machines and other equipment in thermal power stations, machinery industry, water conservancy, steel, cement and mining industries
Production process




Advantages
- With a power range of 160KW to 15000KW and pole numbers from 2P to 16P, this high voltage motor offers high efficiency, energy saving, low noise and low vibration.
- We maintain a monthly production capacity of 100 for this type of high-voltage motors. Flexible customization covering outline dimension, rated power and operating voltage is available. We tailor products precisely to meet varied technical parameters of legacy motor replacement projects and diverse on-site working requirements from different clients.
Application
It is widely used to drive various general machinery such as fans, compressors, water pumps and crushers, serving as the prime mover in machinery, petroleum, power generation, metallurgy and mining industries. It can replace J and JS series motors and be derived into various types, making it a standard purchase for industrial and mining enterprises.

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Company Profile
PUTAI Electric Motor Equipment Co., Ltd. is a direct-operated motor manufacturing enterprise that integrates R&D, precision manufacturing, and cross-border trade. With years of deep expertise in the field of industrial electric drives, the company specializes in a comprehensive range of industrial motors and complementary electrical equipment-including AC motors, DC motors, medium- voltage industrial motors, motor starters and drives, motor winding assemblies, precision components, and a full suite of auxiliary electrical devices.
Focused on high-end motor OEM customization within the heavy industry sector, we specialize in the R&D and mass production of high-performance DC and medium/high-voltage motors, deeply tailored to the heavy-load operating conditions found in metallurgy, mining, and power generation. Supported by intelligent production lines and a standardized quality inspection system, we maintain full control over the entire value chain-from structural design and precision manufacturing to performance testing and after-sales maintenance. We offer targeted customization based on specific equipment loads and operating environments, thereby guaranteeing the long-term efficiency and operational stability of the machinery.
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For all products currently available for sale-whether you require technical support, guidance on product usage, or wish to negotiate bulk purchase discounts-we guarantee rapid quotation responses. Our team remains online and available around the clock to receive your calls and inquiries.
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