China Good quality High Quality Yb3 Explosion- Proof Three Phase AC Electrical Induction Motor Electric Motor vacuum pump for ac

Product Description

Why choose us ?

Electric motor frame from 56 – 355, output range from 0.17HP to 430HP

Motor mounting type B3 (IM 1001), B35 (IM 2001), B5 (IM 3001), B14 (IM 3601), B34 (IM 2101)

Optional voltage 110V, 120V, 220V, 240V, 220/380V, 230V/400V, 380V/660V, 50HZ or 60HZ

Protection type IP44, IP54, IP55 on request 

Multiple mounting arrangement for optional           
Aluminum frame, end shields and base    

Strong cast iron frame
High strength cable
Shaft key and protector supplied        
Superior paint finish         
45# steel shaft and stainless steel shaft is optional
Electric motor continuous duty S1,S4
Electric motor have vacuum impregnation for insulation
Electric motor is class F insulation and class H insulation is optional
Electric motor has been make according to ISO9001, CE, UL, CCC, GS request

All of our products are make according to GOST, RoHS and IEC standard.

High performance and IE1, IE2, IE3 efficiency  



Electricity saving and quiet operation
Electric motor can withstand water, dust and vermin
Electric motor very easy installation
Electric motor dependable Corrosion resistant and long life to work
Reliability performance and very competitive price.


1. Silicon steel DR510, 800, 600, 360 standard use stamping of lamination stator and rotor die-casting

2. 100% copper winding and inserting stator (manual and semi-automatically)

3. Stator Vacuum impregnation and drying

4. CNC machining motor shaft, frame, end shields, etc

5. Professional workman inspecting spare parts every processing

6. Electric motor assembly product line

7. Electric motor will 100% test before painting.

8. Electric motor spray-paint on motor painting product line

9. Electric motor will 100% check again before packing.

An electric motor from material to finish motor, must pass 15 time check, and 100% testing, output power, voltage, electric current, non-load, 50% load, 75% load, 100% load and check the nameplate, packing. Finally shipping to our customer.

Att:Our company price was based on high height cold rolled steel stator to promise the efficiency ,if you need to cheaper ,you can choose short height stator or hot cold rolled steel stator ,thankyou

Product details         

Export fumigation wooden case

YB2 ranges of three-phase induction motors are explosion proof motor obtained by renewal and generation-changing of YB ranges of explosion proof motor . The performances of the products have come up to advanced international standards.

The motors have the advantages of higher efficiency, energy saving, higher locked-rotor torque, lower noise, smaller vibration, safe and reliable operation and beautiful appearance, etc. The outputs, mounting dimensions and their corresponding relationships comply with IEC standards.

YB2 series electric explosion proof motor are designed and manufactured into explosion proof type motor and the explosion proof property conforms to China National Standards: GB3836.1-2000 Electrical Apparatus for Explosive Gas Atmospheres-General Requirements. GB3836.2-2000 Electrical Apparatus for Explosive Gas Atmospheres- Explosion proof Enclosure d and standards IEC79-1, BS4683 and EN50018. ExdI- safe for use in the non-mining surfaces of underground coal mines where the explosive mixtures of methane or coal-dust are present. ExdIIAT4 – safe for use in plants where the explosive mixtures of IIA Class, TI, T2, T3 or T4 are present. ExdIIBT4 – safe for use in plants where the explosive mixtures of IIB Class, TI, T2, T3 or T4 are present. ExdIICT4 – safe for use in plants where the explosive mixtures of IIC Class, TI, T2, T3 or T4 are present.


Q1: What about the shipping methods?

1): For urgent order and light weight, you can choose the following express: UPS, FedEx, TNT, DHL, EMS.

 For heavy weight, you can choose to deliver the goods by air or by sea to save cost.

Q2: What about the payment methods?

A2: We accept T/T, L/C for big amount, and for small amount, you can pay us by PayPal, Western Union etc.

Q3: How much does it cost to ship to my country?

A3: It depends on seasons. Fee is different in different seasons. You can consult us at all times.

Q4: What’s your delivery time?

A4: Usually we produce within 25-30days after the payment came.

Q5: Can I print our logo/code/series number on your motor?

A5: Yes, of course.

Q6: Can I order some sample for our testing?

A6: Yes, but it needs some expenses.

Q7: Can you customize my product in special requirement?

A7: Yes, we can offer OEM.

Application: Industrial
Speed: Constant Speed
Number of Stator: Three-Phase
Function: Driving
Casing Protection: Explosion-Proof Type
Number of Poles:
US$ 943.33/Piece
1 Piece(Min.Order)




induction motor

What maintenance practices are essential for prolonging the lifespan of an induction motor?

Maintaining induction motors is crucial for ensuring their longevity and optimal performance. Here are some essential maintenance practices that can help prolong the lifespan of an induction motor:

  • Regular Inspections:
    • Perform routine visual inspections of the motor to check for any signs of wear, damage, or loose connections.
    • Inspect the motor’s ventilation system, cooling fans, and air filters to ensure proper airflow for cooling.
    • Look for any abnormal vibrations, unusual noises, or overheating during operation.
  • Cleaning and Lubrication:
    • Keep the motor clean by removing dust, dirt, and debris that may accumulate on the motor’s surfaces and cooling fins.
    • Regularly lubricate the motor’s bearings as per the manufacturer’s recommendations to reduce friction and wear.
    • Ensure that the lubrication used is compatible with the motor’s bearing type and operating conditions.
  • Monitoring and Testing:
    • Monitor the motor’s operating parameters such as voltage, current, power factor, and temperature using appropriate instrumentation.
    • Conduct periodic electrical tests, such as insulation resistance tests and winding resistance measurements, to detect any insulation deterioration or anomalies in the motor’s electrical circuit.
    • Perform vibration analysis and motor signature analysis to identify potential mechanical issues or faults in the motor’s components.
  • Belt and Coupling Maintenance:
    • If the motor is coupled to driven equipment using belts or couplings, regularly inspect and adjust the tension of the belts or couplings to ensure proper power transmission.
    • Replace worn-out or damaged belts and couplings promptly to prevent excessive vibrations or misalignments that can affect the motor’s performance.
  • Protection and Enclosure:
    • Ensure that the motor is adequately protected from environmental factors such as dust, moisture, and corrosive substances.
    • Verify that the motor’s enclosure or housing is intact and provides sufficient protection against ingress of foreign materials.
    • Consider installing additional protective measures, such as motor covers or guards, if the motor operates in harsh or hazardous environments.
  • Corrective Maintenance:
    • Promptly address any identified issues or abnormalities in the motor’s performance through corrective maintenance.
    • Repair or replace faulty components, such as bearings, windings, or capacitors, using genuine replacement parts recommended by the motor manufacturer.
    • Engage qualified technicians or electricians for complex repairs or rewinding tasks to ensure proper handling of the motor.
  • Documentation and Record-Keeping:
    • Maintain comprehensive records of the motor’s maintenance activities, including inspection reports, test results, repairs, and replacements.
    • Track the motor’s history and performance trends to identify any recurring issues or patterns that may require special attention.
    • Use the documentation and records as a reference for future maintenance and as a resource for troubleshooting or warranty claims.

Adhering to these maintenance practices can significantly extend the lifespan of an induction motor and ensure its reliable operation over time. Regular inspections, cleaning, monitoring, and timely corrective actions are key to preventing major failures and optimizing the motor’s performance.

induction motor

How does an induction motor ensure consistent and reliable performance in various applications?

Induction motors are known for their consistent and reliable performance in a wide range of applications. These motors incorporate several design features and mechanisms that contribute to their ability to deliver consistent and reliable performance. Here’s a detailed explanation of how induction motors ensure such performance:

  • Robust Construction: Induction motors are designed with robust construction to withstand the demands of various applications. They are typically made with durable materials, such as cast iron or aluminum, for the motor frame and end brackets. The rotor and stator laminations are designed to minimize energy losses and maximize efficiency. The overall construction ensures the motor’s structural integrity, allowing it to withstand mechanical stresses and vibrations that may occur during operation.
  • Efficient Cooling: Proper cooling is essential for maintaining consistent and reliable motor performance. Induction motors are designed with efficient cooling systems to dissipate heat generated during operation. The most common cooling methods include open drip-proof (ODP), totally enclosed fan-cooled (TEFC), and air-to-water heat exchangers. These cooling systems prevent the motor from overheating, which can lead to performance degradation or motor failure.
  • High-Quality Insulation: Induction motors employ high-quality insulation materials to ensure reliable performance. The stator windings and rotor bars are insulated to withstand high voltages and prevent electrical breakdown. The insulation materials are carefully selected to provide thermal stability, mechanical strength, and resistance to environmental factors such as moisture, chemicals, and contaminants. High-quality insulation helps to prevent electrical faults and ensures safe and reliable motor operation.
  • Optimized Magnetic Design: The magnetic design of an induction motor plays a crucial role in its performance. The stator and rotor core materials are chosen to minimize energy losses and maximize magnetic flux density. The number of stator slots and rotor bars is carefully selected to achieve balanced magnetic fields and reduce harmonics. The magnetic design is optimized to provide high torque, efficiency, and power factor, resulting in consistent and reliable motor performance.
  • Motor Protection Devices: Induction motors are equipped with various protection devices to ensure safe and reliable operation. These devices monitor motor parameters and act to prevent damage or failures. Common motor protection devices include thermal overload relays, which monitor motor temperature and disconnect the motor in case of overheating, and current and voltage monitoring relays, which detect abnormal current or voltage conditions and trigger appropriate actions. Motor protection devices help to safeguard the motor and ensure consistent and reliable performance.
  • Maintenance and Service: Proper maintenance and service are essential for maintaining consistent and reliable motor performance over time. Regular inspections, lubrication, and cleaning help to identify and address potential issues before they escalate. Additionally, timely repairs and replacements of worn-out components or damaged parts contribute to the motor’s reliability and longevity. Following manufacturer-recommended maintenance practices and scheduling periodic service ensure that the motor remains in optimal condition for consistent and reliable performance.

In conclusion, induction motors ensure consistent and reliable performance in various applications through their robust construction, efficient cooling systems, high-quality insulation, optimized magnetic design, motor protection devices, and proper maintenance and service. These design features and mechanisms work together to provide a motor that can withstand the demands of different applications, deliver consistent performance, and operate reliably over an extended period.

induction motor

Can you explain the basic principles of induction motor operation?

An induction motor operates based on the fundamental principles of electromagnetism and electromagnetic induction. Here’s a detailed explanation of the basic principles of induction motor operation:

  • Electromagnetic Induction:
    • Electromagnetic induction is the phenomenon where a changing magnetic field induces an electromotive force (EMF) or voltage in a conductor.
    • In an induction motor, the stator windings are connected to an AC power supply, which produces a rotating magnetic field.
    • This rotating magnetic field induces voltage in the rotor conductors through electromagnetic induction.
  • Rotating Magnetic Field:
    • The stator windings of an induction motor are arranged in such a way that they create a rotating magnetic field when energized by the AC power supply.
    • The number of poles in the motor determines the speed of the rotating magnetic field. The synchronous speed of the magnetic field is given by the formula: synchronous speed = (120 x frequency) / number of poles.
    • For example, a 4-pole motor operating with a 60 Hz power supply will have a synchronous speed of 1,800 revolutions per minute (RPM).
    • The rotating magnetic field generated by the stator induces a voltage in the rotor conductors, which in turn creates its own magnetic field.
  • Slip and Rotor Movement:
    • When the rotor conductors are exposed to the rotating magnetic field, an induced voltage and current are generated in the rotor.
    • The interaction between the rotor’s magnetic field and the stator’s rotating magnetic field creates a torque, which causes the rotor to start rotating.
    • However, the rotor does not rotate at the synchronous speed of the magnetic field. The actual rotor speed is slightly lower, resulting in a slip.
    • The slip is necessary for the motor to develop torque. It allows the rotor to create its own magnetic field that interacts with the rotating magnetic field of the stator, generating the required torque to perform work.
  • Induced Rotor Current:
    • The rotor current is induced by the voltage difference between the rotor conductors and the rotating magnetic field of the stator.
    • For squirrel cage induction motors, the rotor consists of short-circuited conductive bars or loops. The induced current flows through these conductors, generating a magnetic field that opposes the stator’s magnetic field.
    • The interaction between the rotor’s magnetic field and the stator’s magnetic field produces torque, allowing the motor to overcome inertia and start rotating.
  • Motor Speed and Torque:
    • The speed of an induction motor is determined by the slip between the rotor speed and the synchronous speed of the rotating magnetic field.
    • A small slip allows the motor to develop torque and operate efficiently. As the load on the motor increases, the slip also increases to maintain the torque required to drive the load.
    • The torque produced by the motor is proportional to the square of the induced rotor current and is also influenced by the strength of the rotating magnetic field.

In summary, the basic principles of induction motor operation involve the generation of a rotating magnetic field by the stator windings, which induces voltage and current in the rotor conductors through electromagnetic induction. The interaction between the rotor’s magnetic field and the rotating magnetic field of the stator produces torque, allowing the motor to rotate and perform mechanical work. The slip between the rotor speed and the synchronous speed ensures the motor can develop the necessary torque for various loads.

China Good quality High Quality Yb3 Explosion- Proof Three Phase AC Electrical Induction Motor Electric Motor   vacuum pump for ac	China Good quality High Quality Yb3 Explosion- Proof Three Phase AC Electrical Induction Motor Electric Motor   vacuum pump for ac
editor by CX 2023-11-16