Application

Permanent Magnet direct drive motor solution provider

01 permanent magnet synchronous motor for the rotor pump

The permanent magnet synchronous motor for the rotor pump adopts the latest electromagnetic optimization design and structural solution, with good motor performance and compact structure. It has the advantages of small size, light weight, high power density, high efficiency, high power factor, good moisture resistance, low noise, low vibration, easy installation, and maintenance-free. Compared with asynchronous motors with the same parameters, the volume can be reduced by 1/2 and the weight can be reduced by half. It is suitable for various low-lift and large-flow water conservancy facilities.

Parameter range:

Power range	25‐250KW
Speed range	200‐600r/min
Voltage level	380VAC
Installation method	Foot mounted or according to customer requirement
Cooling method	Natural cooling
Protection level	IP54(Higher protection level can be customized)

The product can be tailored to the motor parameter indicators according to the user's specific requirements, and the installation form can be customized according to the customer's actual needs.

Volume comparison with the same parameters:

Permanent magnet synchronous motor for rotor pump

Low speed asynchronous motor

Application

Permanent magnet synchronous motors for rotor pumps have been put into use in mobile pump trucks in Xinjiang. The product is small in size, light in weight, compact in structure, saves installation space, has good energy-saving effects, and is highly cost-effective.

Performance parameter comparison:

Dimensions:

Item	Permanent magnet synchronous motor for rotor pump	Low speed asynchronous motor
Rated power (KW)	75	75
Rated voltage (V)	380	380
Rated current (A)	146	166
Synchronous speed (r/min)	500	500
Efficiency	0.96	90.8%
Power factor	0.99	0.75
Maximum torque multiple	2	1.6
Locked rotor current multiple	2	5.5
Noise (dB)	≤80	83
Vibration (mm/s)	≤2.3	≤3.5
Duty	S1	S1
Protection level	IP54	IP54
Center height (mm)	355	355
Motor length (mm)	748	1491
Weight	696kg	1512kg

Model	A	AB	B1	BB	D	E	GD	F	G	H	HD	K	L
CPD550	540	650	18	37	80	17	14	2	71	355	640	42	748

Low-speed, high-torque permanent magnet motor drive system for belt conveyors

02 The low-speed, high-torque permanent magnet motor transmission system for belt conveyors is a special product tailored to the operating characteristics of belt conveyors. It adopts the latest electromagnetic solution and structural design, and has the advantages of energy saving and high efficiency, small size, light weight, high torque density, strong anti-demagnetization ability, strong overload capacity, easy installation, maintenance-free, and high cost performance. It is suitable for various low-speed, high-torque belt conveyor transmission equipment. The system is equipped with a special frequency converter for permanent magnet motors, which is simple to operate, stable in operation, and convenient in speed regulation.

Parameter range:

Power range	25‐400KW
Speed range	50‐100r/min
Voltage level	380V、660V、1140V、6kV、10kV
Torque range	5000-200000N·m
Cooling method	Natural cooling、water cooling、forced air cooling
Protection level	IP54(Higher protection level can be customized)

The product can be tailored to the motor parameter indicators according to the user's specific requirements, and the installation form can be customized according to the customer's actual needs.

Real object comparison:

Low-speed, high-torque permanent magnet motor transmission system for belt conveyors

High-speed motor + reducer + brake + hydraulic coupling

Application

The low-speed, high-torque permanent magnet motor transmission system for belt conveyors can directly replace the traditional asynchronous motor + reducer + hydraulic coupling structure, directly drive the equipment to operate, and has high transmission efficiency, good energy-saving effect, and safe and reliable operation. The product is small in size, light in weight, low in vibration and noise, easy to install, with few fault points and simple operation. It covers multiple voltage levels such as 380V, 660V, 1140V, 3300V, 6kV, 10kV, etc., with a speed range of 0-60, 75, 90r/min, etc., and can be designed and produced according to customer technical indicators.

Performance parameter comparison:

Parameters	Low speed and high torque permanent magnet motor drive system	High-speed motor + reducer + hydraulic coupling
Rated power (KW)	132	132
Rated torque (N. m)	20000	20000
Rated voltage (V)	380	380
Current (A)	211.5	240
Synchronous speed (r/min)	60	60
Efficiency (%)	96.4	0.93×0.9=0.837
Power factor	0.9942	0.85
Starting torque multiple	1.5	1.5
Maximum torque multiple	2.0	1.5
Weight (t)	1.8	3.2

Dimensions：

Low speed and high torque permanent magnet motor drive system for belt conveyor

Flameproof high-speed motor + reducer + brake + hydraulic coupler

Low-speed, high-torque permanent magnet motor drive system for air-cooled island

03 Air-cooling island is the abbreviation of air-cooled heat exchanger, which is an energy-saving cooling equipment for power plants. The fan of the air-cooling island is composed of many cooling fin tube bundles and is driven by an electric motor. It operates at a low speed to achieve air cooling. It has a low operating speed and a long operating time, and has extremely high requirements for energy saving and safety and reliability of the driving equipment. Due to the large size of the blades, there will be a certain amount of swing during operation, which can also easily cause damage to the bearings and affect the service life.

Traditional application:

High-speed rotating asynchronous motor drives the reducer to drive the cooling fins. The reducer front stage runs at high speed, which causes severe wear and high failure rate. The cooling fins will swing due to the influence of wind during operation, and long-term swinging operation will damage the front bearing. The maintenance amount is large and the maintenance cost is high during use. The system has low transmission efficiency and high energy consumption, which does not meet the industrial trend of energy-saving and environmental protection of equipment.

Parameter range:

Power range	25-250KW
Speed range	60-90r/min
Voltage level	380V
Installation	Vertical installation or as per customer’s requirement
Cooling method	Natural cooling、water cooling、forced air cooling
Protection level	IP54 (higher protection level can be customized)

※The product can be customized according to the user's specific requirements for motor parameter indicators, and the installation form can be customized according to the customer's actual needs.

Application

The low-speed, high-torque permanent magnet drive system for the air-cooled island can directly replace the asynchronous motor + reducer structure and connect with the fan blades, simplifying the transmission chain, small size, light weight, and high cost performance. The patented structural design has strong anti-blade swing ability, reliable system operation, long life, small size, and excellent performance, which greatly reduces the cost of use, installation, and maintenance.

Performance parameter comparison:

Parameters	Low-speed, high-torque permanent magnet motor drive system for air-cooled island	Asynchronous motor + reducer
Rated power (KW)	132	132
Rated torque (N. m)	15000	15000
Rated voltage (V)	380	380
Synchronous speed (r/min)	81	81
Maximum speed (r/min)	91	81
Efficiency (%)	95.26	0.93×0.9=0.837
Power factor	0.987	0.88
Current (A)	237	240
Starting torque multiple	1.5	1.5
Maximum torque multiple	2	1.5
Weight (t)	1.7	2.6

Dimensions：

Low speed and high torque permanent magnet motor transmission system for mixing mill

04 The low-speed, high-torque permanent magnet motor transmission system for the mixing mill is a new drive system with low speed, high torque, strong load capacity, good speed regulation performance, excellent energy-saving effect, small size and light weight. The system has no high-speed running gears, small mechanical loss, higher system transmission efficiency, good energy-saving effect, and low installation and maintenance costs. The system uses special drive equipment, with no impact at startup, strong overload capacity, complete protection functions, and a smoother and more reliable operation process.

Parameter range:

Power range	75‐250KW
Speed range	6‐35r/min
Voltage level	380VAC、6kVAC、10kVAC
Torque range	30000-160000N·m
Installation	Foot installation, according to customer requirements
Cooling method	Forced water cooling
Protection level	IP54 (higher protection level can be customized)

※The product can be customized according to the user's specific requirements for motor parameter indicators, and the installation form can be customized according to the customer's actual needs.

Volume comparison with the same parameters:

Low speed and high torque permanent magnet motor transmission system for mixing mill

High-speed motor + reducer + brake + hydraulic coupling

Application

The low-speed and high-torque permanent magnet motor transmission system for mixing mills has been successfully applied. The product replaces the traditional asynchronous motor + reducer structure to directly drive the mixing mill roller. It has small size, light weight, compact structure, good energy-saving effect and high cost performance.

Performance parameter comparison:

Parameters	Low speed and high torque permanent magnet motor drive system for mixing mill	Asynchronous motor + reducer
Rated power (KW)	132	132
Rated torque (N. m)	84000	84000
Rated voltage (V)	380	380
Rated speed (r/min)	15	15
Efficiency (%)	96.16	0.95×0.9=0.855
Power Factor	0.9874	0.88
Current (A)	223.3	238.4
Starting torque multiple	1.5	1.5
Maximum torque multiple	2	1.5
Weight (t)	2.5*2	13

Dimensions：

Low speed and high torque permanent magnet motor drive system for rotary kiln

05 Rotary kiln is a device for calcining various materials. It is widely used in cement, chemical, metallurgy and other industries. Rotary kiln equipment is usually driven by multiple drive devices to drive the small gears. The small gears engage the large ring gear to rotate the kiln body. The kiln body speed is usually between 0.2-3.5r/min. The single drive torque can reach 100,000Nm. The working characteristics are low speed and high torque. Traditional drive equipment has hydraulic motors, high-speed motors + reducers and other structures.

Traditional applications

Traditional rotary kiln equipment mostly uses hydraulic motor systems. The hydraulic station occupies a large area, has high equipment costs, and high installation and maintenance costs. The system has low efficiency, high losses, high noise, and extremely high failure rates in the later stage, which poses safety hazards.

Parameter range:

Power range	25 -250KW
Speed range	5-40r/min
Voltage level	380V、6kV、10kV
Installation	Foot installation or as per customer’s requirements
Torque range	30000-150000N·m
Cooling method	Natural cooling, water cooling, forced air cooling
Protection level	IP54 (higher protection level can be customized), conventional structure

※The product can be customized according to the user's specific requirements for motor parameter indicators, and the installation form can be customized according to the customer's actual needs.

Application：

The low-speed, high-torque permanent magnet motor transmission system for rotary kilns is a new generation of energy-saving products specially developed and produced according to the demand characteristics and operating characteristics of rotary kiln equipment. The system has a low rated speed and high torque. It replaces the asynchronous motor + reducer structure and hydraulic motor structure, directly drives the pinion to operate, simplifies the transmission chain, has a small size, light weight, high cost performance, reliable system operation, long life, and greatly reduces the cost of use, installation and maintenance.

Performance parameter comparison:

Parameters	Low speed and high torque permanent magnet motor drive system for rotary kiln
Rated power (KW)	90
Rated torque (N. m)	57000
Rated voltage (V)	380
Rated speed (r/min)	15
Efficiency (%)	95.6
Power Factor	0.9894
Current (A)	149.5
Starting torque multiple	1.5
Maximum torque multiple	2
Weight (t)	1.7

Dimensions：

Permanent magnet motor drive system for submersible tubular pump

06 Low-lift and high-flow submersible cross-flow pumps are widely used in water conservancy projects such as flood control and drainage, water diversion and regulation, and water flow in plain river areas. They have the characteristics of simple structure, small footprint, easy installation, and simple operation and maintenance. The flow rate of the submersible cross-flow pump can reach 15m³/s, the head is 1-5m, the motor speed is 200-400r/min, and the power is 100-1000KW.

Parameter range: m³

Speed range	Power Range	Voltage range	Flow range	Installation dimensions and structure
100-500r/min	100-1000KW	380-10000V	1.5-15m3/s	According to customer requirements

※The product can be customized according to the user’s specific requirements for motor parameter indicators, and the installation form can be customized according to the customer’s actual needs.

Application：

The permanent magnet motor drive system for submersible tubular pumps has been put into use at Xidaying Pump Station. This product has high efficiency and power factor, small motor size, increased flow area of the pump, and improved pump efficiency. The equipment has low operating noise, low vibration, and is maintenance-free, making it suitable for pump stations with high operating environment requirements.

Performance parameter comparison:

Project	Permanent magnet motor for submersible crossflow pump	Low speed asynchronous motor
Rated power (KW)	250	250
Rated voltage (V)	400	400
Rated current (A)	375.8	590
Rated frequency (Hz)	50	50
Synchronous speed (r/min)	250	250
Efficiency	≥97%	≥92%
Power Factor	≥0.97	≥0.66
Maximum torque multiple	2.0	1.6
Stall current multiple	2.0	5.0
Noise (dB)	≤80	≤85
Vibration (μm)	≤20	≤50
Winding temperature rise (K)	≤35	≤60
Working system	S1	S1
Protection level	IP68	IP68
Core outer diameter (mm)	850	990
Length of effective part of motor (mm)	1290	1980

Appearance comparison:

Permanent magnet motor drive system for submersible tubular pump

Low speed asynchronous motor for submersible tubular pump

Permanent magnet direct drive motor/permanent magnet lifting drum for hoist

07 At present, the mechanisms used for lifting loads, in addition to electric hoists, are winches. At present, winches are mostly used in gantry cranes, mine hoists, villa elevators, bucket elevators and other equipment. Traditional lifting mechanisms have low transmission efficiency and are mostly driven by straight-toothed reducers. Maintenance is troublesome, especially the running noise is loud. Due to the different nature of the work, there is a huge waste of energy. Once the reduction mechanism fails, there will be great trouble for later maintenance, and lifting will be difficult, which increases the maintenance cost. The direct-drive permanent magnet motor dedicated to the built-in lifting winch greatly optimizes the performance of the lifting mechanism and has become the first choice for intelligent and efficient equipment in industries such as oil fields, lifting mines, and ports.

Permanent magnet direct drive motor for ball mill

08

Conventional mill:

The motor + reducer transmission mode is a typical low-speed, high-torque load. When using an asynchronous motor, it is difficult to start and the starting current is relatively large. Especially when maintenance or a malfunction occurs, the steel balls and materials in the ball mill accumulate at the bottom of the drum for a long time, making starting more difficult and time-consuming.

Permanent Magnetic Grinding Mill:

After using the permanent magnet direct drive system, due to the large starting torque, the mill can be started smoothly under heavy load without the help of any auxiliary equipment, and the intelligent control system is used to adjust the motor speed according to the actual working conditions, thereby improving the process and increasing production efficiency. For the ball mill, after the drive system is modified, the power saving rate is more than 10%, which greatly reduces the production cost. In addition, the permanent magnet direct drive system has the advantages of maintenance-free, small footprint, saving a lot of space, and effectively reducing the cost of civil engineering investment.

Permanent magnet direct drive motor for stirring tank, stirring kettle and stirring tank

09 The mixing equipment driven by permanent magnet direct drive motor has unparalleled application advantages in sewage treatment, mining mixing tanks, pharmaceutical mixing kettles, food mixing tanks and other industrial applications. The design speed of the permanent magnet synchronous motor is low, which can directly drive the impeller, eliminating the reducer structure. The overall efficiency of the system is high, the noise and vibration are small, and the operation is safer and more reliable. It forms a drive system with permanent magnet dedicated control system. With the huge advantages of energy saving and environmental protection, it has become a new trend in the development of low-speed mixing equipment. The drive system composed of the permanent magnet direct drive motor and dedicated control can be professionally customized according to the parameters and size requirements provided by the customer.

The product adopts the latest electromagnetic optimization design and structural solution, with good motor performance and compact structure. It has the advantages of small size, light weight, high torque density, high efficiency power factor, good moisture resistance, low noise and vibration, easy installation, maintenance-free, and high cost performance.

New Line-Start PMSM

10 The new direct-running permanent magnet motor has a cage-shaped conductive bar with the same structure as the induction motor rotor in addition to the embedded permanent magnets, so that it can generate asynchronous torque to accelerate the rotor when powered on. During normal operation, the permanent magnets on the rotor generate an excitation magnetic field that maintains a certain power angle and rotates synchronously with the rotating magnetic field generated by the three-phase winding. When the synchronous speed stabilizes, since the stator magnetic field speed is consistent with the rotor speed and there is no relative motion, no induced current is generated and the squirrel cage bars (copper bars) do not work. The permanent magnets and stator windings jointly generate driving torque.

Differences in rotor structure from asynchronous motors：

Low voltage medium and high speed direct running permanent magnet motors (also called "self-starting permanent magnet motors") have the same advantages as variable frequency permanent magnet motors:

The new direct-running series of permanent magnet motors have strong load-bearing capacity, fast dynamic recovery time, and high stable operation performance;
It has the characteristics of constant speed, high efficiency and power factor, and wide economic operation range;
Using high-performance NdFeB rare earth permanent magnet materials and low-loss non-oriented electrical steel, the motor is small in size and light in weight;

Compared with variable frequency permanent magnet motor, it also has the following advantages:

When a large load is suddenly added or removed, there will be no power angle oscillation, no loss of step and no failure to operate, and no damage to the motor;
This product can be started directly at industrial frequency without inverter, can be V/F controlled, and can also be driven by inverter speed regulation; (only limited to products above 750 rpm)
It can realize the occasions of fans and water pumps where one inverter drives multiple motors to run;
This series of motors can be driven directly by an asynchronous inverter without replacing a permanent magnet dedicated inverter;

Permanent magnet direct drive system for flotation machine

11 The permanent magnet motor fully matches the rated speed and power of the flotation machine impeller. The flotation machine structure is not changed during installation. The traditional asynchronous motor, pulley, bearing body and other components are eliminated. The motor is directly installed on the bearing body of the flotation machine, and the output shaft of the motor is connected to the impeller shaft through an integrated coupling. All intermediate transmission links are removed, allowing the motor body to directly drive the flotation machine.

01 The motor body saves energy and reduces consumption. The permanent magnet motor has high efficiency and high power factor that cannot be matched by asynchronous motors. Depending on the original motor model, power level and load rate, the motor's power saving rate is 5%~10%.

02 The transmission system saves energy and reduces consumption. The permanent magnet direct drive motor can save transmission links such as large and small pulleys and bearing bodies. Depending on the installation and commissioning quality and the degree of wear of the pulley, the transmission efficiency can be increased by 8%~15%.

03 Intelligent frequency conversion saves energy and reduces consumption. The permanent magnet direct drive motor adopts intelligent frequency conversion drive to automatically change the operating frequency to adjust the load speed, thereby improving the product grade and grinding efficiency, avoiding the speed deviation from the optimal speed point caused by changes in objective factors such as the original slurry processing volume, hardness, particle size, etc., and minimizing invalid energy consumption. The power saving ratio of frequency conversion speed regulation can reach 5%~15%.

04 Reduce line loss. The permanent magnet direct drive motor has a high power factor of more than 0.95, which can significantly reduce line current and reduce line loss by 2%~4% of rated power.