CRRC TFW3554-4 Main Generator

The CRRC TFW3554-4 main generator is a high-performance main power component designed for 90-ton mining electric wheel dump trucks. It is part of CRRC’s serialized and modular mining electric wheel drive system. The model features a rated capacity of 620 kVA, running at a rated speed of 2100 rpm and a rated frequency of 70 Hz.
As a core part of the electric wheel drive system for medium-size mining dump trucks, it works with the hub motor to form a complete power transmission chain that supports heavy-load operations in open-pit mines. The product has achieved import substitution and has been exported to markets including Chile and Australia. It has been widely applied in major mining areas such as Shenhua North China Mining Area and Shenhua Zhungeer Mining Area, and holds a market share of over 50 percent in the electric wheel dump truck drive motor sector.
We offer comprehensive support for the motor, including customized matching for different tonnage dump trucks, on-site installation guidance, maintenance training, and spare parts supply, ensuring reliable operation in long-term heavy-load mining scenarios.

Advantages of CRRC TFW3554-4 Main Generator

Achieved through integrated optimization of electromagnetic and mechanical structures, solving the industry challenge of limited installation space and high torque requirements in mining hubs.
Features a special bearing structure, insulated end caps, and grease lubrication to prevent electrochemical corrosion, with non-contact labyrinth seals to eliminate oil leakage.
All components, including shafts, end caps, seals, and connectors, are made of low-temperature resistant materials, validated by rigorous simulation for stable performance in severe cold mining areas.
Ensures stable and reliable assembly with the vehicle through precision machining and full inspection of spline dimensions.
Utilizes specialized software to simulate and iterate motor designs, optimally matching the motor with the electronic control system based on boundary conditions.
Employs specialized winding and VPI insulation processes, with a unique rotor structure to withstand heavy-duty shocks, significantly extending motor lifespan.

Technical Specifications

Motor Model:	TFW3554-4
Matching Payload:	90 Ton
Rated Capacity:	620 kVA
Rated Frequency:	70 Hz
Rated Voltage:	690 V
Rated Current:	518.8 A
Rated Speed:	2100 rpm
Rated Efficiency:	95.2%
Power Factor:	0.85
Weight:	2100 kg

coming soon

Motor Model	Matched Tonnage	Rated Frequency	Rated Voltage	Rated Current	Rated Speed	Rated Efficiency	Power Factor	Weight
TFW3001-4	240 t	126.7 Hz	1210 V	429 A	1900 rpm	95 %	0.87	3650 kg
TFW3002-4	190 t	126.7 Hz	1140 V	658 A	1900 rpm	94 %	0.85	3356 kg
TFW3553-4	60 t	70 Hz	690 V	393.3 A	2100 rpm	95 %	0.85	1727 kg
TFW3554-4	90 t	70 Hz	690 V	518.8 A	2100 rpm	95.2 %	0.85	2100 kg
TFW4501-8	110 t	120 Hz	1060 V	433 A	1800 rpm	95 %	0.85	2545 kg
TQF-1600	220 t	126.7 Hz	1140 V	2×405 A	1900 rpm	95 %	0.89	3680 kg
YP90-8	60 t	40.75 Hz	505 V	150 A	600 rpm	92.7 %	0.75	930 kg
YP90-8-A	90 t	40.75 Hz	505 V	150 A	600 rpm	92.7 %	0.75	960 kg
YP188-6	110 t	50 Hz	106 V	132 A	1000 rpm	95 %	0.85	1015 kg
YP350-6	50 t	35.5 Hz	520 V	482 A	700 rpm	94.1 %	0.85	1800 kg
YP365-6	120 t	30 Hz	800 V	340 A	590 rpm	93.7 %	0.83	1761 kg
YP375-6	110 t	54 Hz	840 V	290 A	686 rpm	96.5 %	0.92	1890 kg
YP460-6	150 t	35 Hz	850 V	385 A	690 rpm	94.5 %	0.85	2500 kg
YP620-6	190 t EH3500	38.7 Hz	1530 V	342 A	766 rpm	95.5 %	0.81	2880 kg
YP763-6	220 t CR240E / NTE260	25.9 Hz	700 V	764 A	510 rpm	94.9 %	0.86	3600 kg
YP820-6	290 t 930E	24 Hz	680 V	347 A	473 rpm	94.2 %	0.89	4100 kg
YP900-6	220 t 830E	35 Hz	750 V	344 A	690 rpm	95 %	0.87	3100 kg
YP930-6	300 t CR330E	24.3 Hz	880 V	703 A	480 rpm	95 %	0.90	4300 kg
YP1030-6	330 t	24 Hz	800 V	847 A	473 rpm	94.8 %	0.92	4500 kg
YP1044-6	360 t	31.2 Hz	1170 V	348 A	927 rpm	95.6 %	0.93	4900 kg
——END——

Motor Model	Matched Tonnage	Rated Capacity	Rated Frequency	Rated Voltage	Rated Current	Rated Speed	Rated Efficiency	Power Factor	Weight
TFW3001-4	240 t	1800 kVA	126.7 Hz	1210 V	429 A	1900 rpm	95 %	0.87	3650 kg
TFW3002-4	190 t	1300 kVA	126.7 Hz	1140 V	658 A	1900 rpm	94 %	0.85	3356 kg
TFW3553-4	60 t	470 kVA	70 Hz	690 V	393.3 A	2100 rpm	95 %	0.85	1727 kg
TFW3554-4	90 t	620 kVA	70 Hz	690 V	518.8 A	2100 rpm	95.2 %	0.85	2100 kg
TFW4501-8	110 t	900 kVA	120 Hz	1060 V	433 A	1800 rpm	95 %	0.85	2545 kg
TQF-1600	220 t	1600 kVA	126.7 Hz	1140 V	2×405 A	1900 rpm	95 %	0.89	3680 kg
——END——

Traction motor

Motor Model

Matched Tonnage

Rated Power

Rated Frequency

Rated Voltage

Rated Current

Rated Speed

Rated Torque

Rated Efficiency

Power Factor

Insulation Class

IP Code

Cooling Method

Weight

YP90-8

60 t

90 kW

40.75 Hz

505 V

150 A

600 rpm

1432 N·m

92.7 %

0.75

IP56

Water Cooling

930 kg

YP90-8-A

90 t

90 kW

40.75 Hz

505 V

150 A

600 rpm

1432 N·m

92.7 %

0.75

IP56

Water Cooling

960 kg

YP188-6

110 t

188 kW

50 Hz

106 V

132 A

1000 rpm

1800 N·m

95 %

0.85

IP20

Air Cooling

1015 kg

YP350-6

50 t

350 kW

35.5 Hz

520 V

482 A

700 rpm

4774 N·m

94.1 %

0.85

IP20

Air Cooling

1800 kg

YP365-6

120 t

365 kW

30 Hz

800 V

340 A

590 rpm

5600 N·m

93.7 %

0.83

IP20

Air Cooling

1761 kg

YP375-6

110 t

375 kW

54 Hz

840 V

290 A

686 rpm

5220 N·m

96.5 %

0.92

IP56

Water Cooling

1890 kg

YP460-6

150 t

460 kW

35 Hz

850 V

385 A

690 rpm

6340 N·m

94.5 %

0.85

IP20

Air Cooling

2500 kg

YP620-6

190 t EH3500

620 kW

38.7 Hz

1530 V

342 A

766 rpm

7700 N·m

95.5 %

0.81

IP20

Air Cooling

2880 kg

YP763-6

220 t CR240E

763 kW

25.9 Hz

700 V

764 A

510 rpm

14287 N·m

94.9 %

0.86

IP20

Air Cooling

3600 kg

YP763-6

220 t NTE260

763 kW

25.9 Hz

700 V

764 A

510 rpm

14287 N·m

94.9 %

0.86

IP20

Air Cooling

3600 kg

YP820-6

290 t 930E

820 kW

24 Hz

680 V

347 A

473 rpm

16540 N·m

94.2 %

0.89

IP20

Air Cooling

4100 kg

YP900-6

220 t 830E

900 kW

35 Hz

750 V

344 A

690 rpm

12440 N·m

95 %

0.87

IP20

Air Cooling

3100 kg

YP930-6

300 t CR330E

930 kW

24.3 Hz

880 V

703 A

480 rpm

18503 N·m

95 %

0.90

IP20

Air Cooling

4300 kg

YP1030-6

330 t

1030 kW

24 Hz

800 V

847 A

473 rpm

20713 N·m

94.8 %

0.92

IP20

Air Cooling

4500 kg

YP1044-6

360 t

1044 kW

31.2 Hz

1170 V

348 A

927 rpm

10752 N·m

95.6 %

0.93

IP20

Air Cooling

4900 kg

——END——

Ansoft software was used to simulate and calculate the generator’s operating behavior with a rectifier load and the brushless excitation circuit, improving design accuracy.

The brushless exciter’s rotating rectifier module adopts a radial arrangement, enhancing its resistance to centrifugal force at high speeds, while also facilitating module replacement and improving mechanical reliability and maintainability.

Ansys CFD software was used to simulate and calculate the flow field and temperature field of the self-ventilated main generator, optimizing the ventilation and heat dissipation design.

Typical performance

360T Electric Wheel Project Introduction

End User: Shenhua Jungar Energy Group

Application Status: R&D was completed in 2014, and loading trial operation was finished in 2017. The product is fully compatible with the original drive system, realizing domestic substitution of Skoda motors.

Product Parameters
Rated Power	1044kW	Rated Speed	927r/min
Rated Efficiency	95.6%	Maximum Speed	3000r/min
Rated Frequency	31.25Hz	Insulation Class	Class C
Rated Voltage	1170V	Rated Torque	10752N·m
Rated Current	578A	Maximum Torque	30483N·m
——END——

330T Electric Wheel Project Introduction

End User: Inner Mongolia Northern Heavy-duty Automobile Co., Ltd.

Application Overview: This hub drive motor is matched to 10 units of 330T electric wheel dump trucks manufactured by Northern Heavy-duty Automobile, marking the first batch application of domestically self-developed electric wheel dump trucks. The R&D was finished in June 2021, and vehicle-mounted trial operation was completed in 2022.

Product Parameters
Rated Power	1030kW	Rated Efficiency	94%
Rated Frequency	24Hz	Rated Voltage	800V
Rated Current	847A	Rated Speed	472r/min
Maximum Speed	3100r/min	Insulation Class	Class H
Rated Torque	20713N·m	Maximum Torque	25975N·m
——END——

290T Electric Wheel Project Introduction

End User: Shenhua Jungar Energy Group

Application Overview: The motor was installed on vehicle in October 2017 and has run stably for over 10,000 hours. It is fully compatible with the original drive system and realizes domestic substitution of GE motors, with an annual production capacity of 50 vehicle sets.

Product Parameters
Rated Power	820kW	Rated Speed	473r/min
Rated Efficiency	94%	Maximum Speed	3120r/min
Rated Frequency	24Hz	Insulation Class	Class H
Rated Voltage	680V	Rated Torque	16540N·m
Rated Current	810A	Maximum Torque	25975N·m
——END——

240TT Electric Wheel Project Introduction

End User: XCMG Construction Machinery Co., Ltd.

Application Overview: This hub drive motor supports XCMG’s export project consisting of 8 sets of 240T electric wheel dump trucks. Its R&D was completed in June 2022, and vehicle-mounted trial operation was finished in 2023.

Product Parameters
Rated Power	790kW	Rated Speed	550r/min
Rated Efficiency	94%	Maximum Speed	3100r/min
Rated Frequency	28Hz	Insulation Class	Class H
Rated Voltage	730V	Rated Torque	13650N·m
Rated Current	715A	Maximum Torque	24068N·m
——END——

220T Electric Wheel Project Introduction

End User: Shenhua Beidian Shengli Energy Co., Ltd.

Application Overview: The motor was mounted on vehicle in January 2015 and has been operating steadily for over 20,000 hours. It is fully matched with the original drive system and achieves domestic substitution of GE motors, with an annual production capacity of 50 vehicle units.

Product Parameters
Rated Power	900kW	Rated Speed	690r/min
Rated Efficiency	95%	Maximum Speed	3300r/min
Rated Frequency	35Hz	Insulation Class	Class H
Rated Voltage	750V	Rated Torque	12440N·m
Rated Current	840A	Maximum Torque	24475N·m
——END——

120T Electric Wheel Project Introduction

End User: Ansteel Mining Co., Ltd.

Application Overview: The motor was mounted on vehicles in October 2017 and has maintained stable operation for more than 10,000 hours. It is of independent design with an annual production capacity of 50 vehicle sets.

Product Parameters
Rated Power	365kW	Rated Speed	590r/min
Rated Efficiency	94%	Maximum Speed	3600r/min
Rated Frequency	30Hz	Insulation Class	Class H
Rated Voltage	800V	Rated Torque	5600N·m
Rated Current	340A	Maximum Torque	11540N·m
——END——

110T Electric Wheel Project Introduction

End User: Datang International Xilinhot Mine

Application Overview: Independently developed design; the unit has run stably for over 10,000 hours and realized permanent magnetization of the electric drive system.

Product Parameters
Rated Power	188kW	Rated Speed	1000r/min
Rated Efficiency	95%	Maximum Speed	3600r/min
Rated Frequency	40.75Hz	Insulation Class	Class H
Rated Voltage	1060V	Rated Torque	1800N·m
Rated Current	132A	Maximum Torque	N/A
——END——

90T Electric Wheel Project Introduction

End User: Jiangxi Chengmen Copper Mine

Application Overview: The motor was installed on vehicles in October 2016 and has maintained stable operation for over 10,000 hours. It is an independently designed solution tailored for high-altitude environments above 4,500 meters.

Product Parameters
Rated Power	90kW	Rated Speed	600r/min
Rated Efficiency	92.2%	Maximum Speed	3800r/min
Rated Frequency	40.75Hz	Insulation Class	Class H
Rated Voltage	505V	Rated Torque	1432N·m
Rated Current	150A	Maximum Torque	2600N·m
——END——

60T Electric Wheel Project Introduction

End User: Guangzhou Electric Locomotive Co., Ltd.

Application Overview: It has been running without faults for 15,000 hours. It was independently designed and has passed joint trial and evaluation.

Product Parameters
Rated Power	90kW	Rated Speed	600r/min
Rated Efficiency	92.2%	Highest Speed	3800r/min
Rated Frequency	40.75Hz	Insulation Class	Class H
Rated Voltage	505V	Rated Torque	1432N·m
Rated Current	150A	Maximum Torque	2600N·m
——END——