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SEW motor nameplate information

 SEW's strength lies in small and medium-sized geared motors. The heavy-duty gearbox was developed on the basis of Santasalo in Finland, initially under the brand name SEW-santasalo.

Founded in 1931, SEW Group is located in Bruchsal, Baden-Württemberg, Germany. It is a multinational international group specializing in the production of various series of motors, reducers and variable frequency control equipment. With the world's most advanced production equipment, SEW Group is the world's highest level and most technologically advanced multinational company in the world, with product marketing all over the world. With 10 manufacturing centers, 58 assembly plants and more than 200 sales and service offices all over the world, it is located in five continents and almost all industrialized countries. It can quickly and efficiently provide high quality products and quality to customers all over the world. service.

Since entering China in 1995, SEW has achieved rapid development. It has established manufacturing centers and assembly bases in Tianjin, Suzhou, Guangzhou, Shenyang and other regions. It covers a variety of industries and national key projects, and has made progress for the development of China's power transmission technology. A huge contribution has been made.
Santasalo hangs SEW's brand because it is not enough to promote it in China. In 1999, it signed an agreement with SEW. SEW is responsible for promoting its products, and must sign its logo. Later, the cooperation between the two companies broke down. The large industrial reducer such as the M series was purchased by SEW to santasalo. Industrial reducer products are divided into M, MC, ML series.


SEW motor nameplate information

The parameters on the motor nameplate:

1. The product number or identification mark of the manufacturer.

Load-in motors with a rated output of 750 W (or VA) and below, and whose structural dimensions are outside the scope of the GB/T 4772 series and for special applications with a rated output of 3 kW (or kVA) and below. In other cases, the following items shall be permanently marked on the nameplate as applicable. These items do not have to be all marked on the same nameplate.

Note: A simple identification mark can be used to identify each type of motor, which is manufactured in the same electrical and mechanical design and in the same process for each batch.

2. Identify the information of the manufacturing year. This information should be marked on the nameplate or listed in a separate data sheet to be supplied to the user with the motor.

Note: This information can be obtained from the manufacturer if the information specified in item 2 is cited, and can also be omitted from the nameplate and separate data sheets.

3. Thermal grading and temperature limits or temperature rise limits (when lower than thermal grading), if necessary, the motor with water-cooled chiller is also affixed with a temperature rise that is measured by the primary or secondary cooling medium. “P” (primary) or “S” (secondary) letters are indicated. When the stator and rotor are thermally graded differently, they should be indicated separately (separated by diagonal lines).

SEW geared motors are designed on the basis of a modular system with a wide range of motor combinations, mounting positions and structural solutions. The SEW modular combination system allows the gear unit to be combined with the following components:
- combined with a constant field synchronous motor into a servo reduction motor;
-Combination with a dangerous environment working type AC squirrel cage motor;
- in combination with a direct current motor;


1. In order to achieve a particularly low output speed, it can be realized by the method of connecting two gear reducers. When using this transmission scheme, the power of the configurable motor must depend on the ultimate output torque of the reducer, and the output torque of the reducer cannot be calculated from the motor power.

2. When installing the transmission parts on the SEW output shaft, it is not allowed to strike with a hammer. Usually, the internal jigs of the assembly jig and the shaft end are used to push the transmission parts with bolts, otherwise the internal parts of the reducer may be damaged. It is better not to use a steel fixed coupling. Due to improper installation of this type of coupling, unnecessary external loads may be caused, resulting in early damage of the bearing and even breakage of the output shaft in severe cases.
3. The SEW reducer should be firmly installed on a stable level foundation or base. The oil in the oil drain should be removed and the cooling air circulation should be smooth. The foundation is unreliable, causing vibration and noise during operation and causing damage to bearings and gears. When the transmission coupling has protrusions or gears and sprocket transmissions, it should be considered to install a protective device. When the output shaft is subjected to a large radial load, the reinforcement type should be selected.

4. According to the specified installation device, the staff can conveniently approach the oil mark, vent plug and drain plug. After the installation is in place, the accuracy of the installation position should be thoroughly checked in order, and the reliability of each fastener should be flexibly rotated after installation. The reducer is splashed and lubricated in the oil pool. Before running, the user needs to remove the screw plug of the vent hole and replace it with the vent plug. According to different installation positions, and open the oil level plug screw to check the height of the oil level line, refuel from the oil level plug until the oil overflows from the oil level plug screw hole, and then screw the oil level plug to make sure it is correct before emptying The test run shall be no less than 2 hours. The operation should be stable, without impact, vibration, noise and oil leakage. If abnormalities are found, they should be eliminated in time. After a certain period of time, the oil level should be checked again to prevent possible leakage of the casing. If the ambient temperature is too high or too low, the grade of the lubricating oil can be changed.

SEW motor nameplate information

1. SEW reducer and working machine connection SEW reducer is directly set on the working machine spindle. When the SEW reducer is running, the counter torque acting on the SEW reduction gear body is installed on the SEW reduction gear body. Brackets are balanced by other methods. The machine is directly matched and the other end is coupled to the fixed bracket.
2. Installation of the anti-torque bracket The anti-torque bracket should be installed on the side of the working machine facing the reducer to reduce the bending moment attached to the working machine shaft. The bushing of the anti-torque bracket and the fixed bearing coupling end uses an elastic body such as rubber to prevent deflection and absorb the generated torque ripple.
3. Installation relationship between SEW reducer and SEW working machine In order to avoid the deflection of the working machine main shaft and the additional force on the reducer bearing, the distance between the SEW reducer and the working machine should be under the condition that it does not affect the normal work. As small as possible, its value is 5-10mm.

Check maintenance:
The newly-introduced reducer has been injected into the L-CKC100-L-CKC220 medium-pressure industrial gear oil in GB/T5903 at the factory. After 200-300 hours of operation, the first oil change should be carried out for later use. The quality of the oil should be checked regularly, and the oil mixed with impurities or deteriorated must be replaced in time. Under normal circumstances, for SEW reducers that work continuously for a long time, replace the new oil with 5000 hours of operation or once a year. The gearbox that has been deactivated for a long time should be replaced with a new oil reducer before re-run. It should be added with the same oil as the original grade. It must not be mixed with different grades of oil. Oils with the same grade and different viscosity are allowed to be mixed. When changing oil, wait for the reducer to cool down without burning danger, but still keep warm, because after the complete cooling, the viscosity of the oil increases and it is difficult to drain. Note: Turn off the power supply of the transmission to prevent unintentional power-on! During work, when the oil temperature rise exceeds 80 °C or the oil pool temperature exceeds 100 °C and abnormal noise is generated, stop using it. Check the cause, remove the fault, and replace the oil before continuing operation. The user shall have reasonable rules for the use and maintenance, and shall carefully record the operation of the reducer and the problems found during the inspection. The above provisions shall be strictly implemented. 5. Selection of Lubricating Oil The SEW reducer must be filled with lubricating oil of appropriate viscosity before it is put into operation. The friction between the gears must be reduced. In case of high load and impact load, the reducer can fully exert its function. First use for about 200 hours, the lubricant must be drained, rinsed, and then re-added new lubricant to the center of the oil standard. If the oil level is too high or too low, the operating temperature may be abnormal.

The reducer is a separate component consisting of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing. It is often used as a reduction gear between the prime mover and the work machine. The function of matching the rotational speed and transmitting torque between the prime mover and the working machine or the actuator is widely used in modern machinery.

The speed reducer plays a role of matching the rotational speed and transmitting torque between the prime mover and the working machine or the actuator, and is a relatively precise machine. The purpose of using it is to reduce the speed and increase the torque. It has a wide variety of models, different models, and different types of uses. There are many types of reducers. According to the transmission type, they can be divided into gear reducers, worm reducers and planetary gear reducers. According to the different drive stages, they can be divided into single-stage and multi-stage reducers. According to the gear shape, they can be divided into cylindrical gears. , bevel gear reducer and cone-cylindrical gear reducer; according to the transmission arrangement can be divided into expansion, split and coaxial reducer.

1. Reduce the speed and increase the output torque at the same time. The torque output ratio is multiplied by the motor output and the reduction ratio, but it should be noted that the rated torque of the reducer cannot be exceeded.
2. Deceleration also reduces the inertia of the load, and the reduction of inertia is the square of the reduction ratio.

The reducer is a mechanical transmission device in many fields of the national economy. The product categories involved in the industry include various types of gear reducers, planetary gear reducers and worm reducers, as well as various special transmission devices, such as speed increase devices and speed control. Devices, and various types of composite transmissions including flexible transmissions. The product service field covers metallurgy, nonferrous metals, coal, building materials, ships, water conservancy, electric power, engineering machinery and petrochemical industries.

SEW motor nameplate information

Meaning of the motor nameplate
1) Use a delta connection when the input voltage is 220-240 volts;
2) Star connection method when the input voltage is 380-415 volts;
3) The input frequency is 50 Hz corresponding to the speed of 1410 rev / min;
4) S1 is a continuous working system, that is, the motor can guarantee continuous operation for a long time under the rated conditions specified on the nameplate.

Nameplate parameters
Motor nameplate data and ratings
Model: It represents the product code of the series, performance, protection structure and rotor type of the motor.
Power: Indicates the rated mechanical power output on the motor shaft during rated operation, in KW or HP, 1HP=0.736KW.
Voltage: The line voltage (V) directly to the stator winding. The motor has two connections, Y-shaped and △-shaped. The connection should be consistent with the connection specified on the motor nameplate to ensure compatibility with the rated voltage.
Current: The three-phase line current of the stator winding at the rated voltage and rated frequency of the motor and the rated power.
Frequency: refers to the frequency of the AC power supply connected to the motor. It is specified as 50HZ±1 in China.
Speed: The rated speed, rated frequency, rated load of the motor, the motor's speed per minute (r/min); the synchronous speed of the 2-pole motor is 3000r/min.
Work quota: refers to the duration of motor operation.
Insulation class: The grade of the motor insulation material determines the allowable temperature rise of the motor.
Standard number: indicates the technical documentation basis for designing the motor.

Excitation voltage: refers to the excitation voltage (V) of the synchronous motor during rated operation.
Excitation current: refers to the excitation current (A) of the synchronous motor during rated operation.
Special note: the number of magnetic poles on the nameplate of the general motor is the number of magnetic poles in the calculation formula of the rotational speed, so divide it by 2 and then calculate it into the formula.
(The following data is mainly marked on the nameplate of the AC asynchronous motor and its meaning is explained as follows:
(1) Rated power (P): is the output power on the motor shaft.
(2) Rated voltage: refers to the line voltage applied to the winding.
(3) Rated current: stator winding line current.
(4) Rated number of revolutions (r/min): Number of revolutions at rated load.
(5) Temperature rise: refers to the insulation level is more than the ambient temperature.
(6) Work quota: the work mode allowed by the motor.
(7) Connection of the winding: Δ or Y connection, corresponding to the rated voltage.


SEW motor nameplate information

1. Model: For example, “Y” in Y112M-4 means Y series squirrel-cage asynchronous motor (YR means wound-wound asynchronous motor), “112” means the center height of the motor is 112mm, “M” means the middle base (L) Indicates a long base, S indicates a short base), and "4" indicates a 4-pole motor.
Some motor models have a digit after the frame code, which represents the iron core number. For example, the “2” behind the S in the Y132S2-2 model indicates that the iron core is long (1 is the length of the iron core).
2. Rated power:
When the motor is operated under rated conditions, the mechanical power that can be output on its shaft is called the rated power.
3, rated speed:
The speed at which the machine is operated under rated conditions is called the rated speed.
4, rated voltage:
The rated voltage is the value of the line voltage to be applied to the stator winding of the motor under rated operating conditions. Y series motors are rated at 380V. For motors with a power of less than 3 kW, the stator windings are all star-shaped, and more than 4 kW are triangular connections.
5, rated current:
When the motor is rated for voltage and the rated power is output on its shaft, the value of the line current drawn by the stator from the power source is called the rated current.
6, temperature rise (or insulation level):
Refers to the heat of the motor above the ambient temperature.

The domestic motor model is generally represented by the Arabic numerals of the capitalized Chinese pinyin letters in uppercase. The format is: the first part uses the uppercase pinyin letters to indicate the product code, the second part uses Arabic numerals to indicate the design number, and the third part uses Arabic numerals to indicate the machine number. Block code, the fourth part uses Arabic numerals to indicate the length of the armature core.



SEW motor nameplate information

Nameplate definition: After the product is put on the market, it is fixed on the product to provide the user with the nameplate of the manufacturer's trademark identification, brand distinction, product parameters and other information. The nameplate is also called the signage. The nameplate is mainly used to record some technical data of the manufacturer and the rated working conditions for correct use without damaging the equipment. The materials used to make the nameplate are metal and non-metal. The metal is zinc alloy, copper, iron, aluminum, stainless steel, etc., but it is mainly produced with aluminum, because the processed nameplate is relatively high-grade and durable. Does not rust. Non-metallic materials include plastics, acrylic organic boards, PVC, PC, and paper.

Nameplates are embossed nameplates and flat nameplates. Ordinary concave nameplate, the paint filled in the recess is lacquer. The method of painting is to paint all the front of the nameplate, and then remove the paint from the font or pattern to expose the metal surface or pattern lines. The higher grade bump nameplate is only coated with baking varnish, or partially painted or coated with clear varnish, depending on the requirements. The flat nameplate is mainly made of aluminum alloy material. The color on the surface is not paint, but the color dyed by anodizing. According to the process, it can be monochrome or 2-3 colors. of. The flat nameplate has a high decorative performance and is relatively inexpensive. Others have a screen missing nameplate, the color used is ink

Imitation gold card: The color of the card is dim, and the surface of the card is prone to fading and fading. The real gold card was only golden at the time, and it lost its true golden color for a long time. Electrophoresis gold card: Made with the latest technology, the color is like gold-like luster. It has a unique three-dimensional embossed texture, and the texture is multiplied and more noble. And can keep the product never fades.

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