YB2 Series Explosion-proof Three-Phase Asynchronous Motor
The YB2 series explosion-proof three-phase asynchronous motor is derived from our country’s Y2 series (IP54) three-phase asynchronous motor. It is the replacement of the YB series explosion-proof three-phase asynchronous motor. It has the 90’s international advanced level. This series of motors have a beautiful appearance, a higher protection level than the YB series, and more safe and reliable use. At the same time, the starting performance is better, and the noise and vibration are lower than in the YB series. It can be used in underground coal mines (non-mining working faces) and factories containing explosive gas mixtures.
YB2 Series Explosion-proof Three-Phase Asynchronous Motor
The YB2 series explosion-proof three-phase asynchronous motor is derived from our country's Y2 series (IP54) three-phase asynchronous motor. It is the replacement of the YB series explosion-proof three-phase asynchronous motor. It has the 90's international advanced level. This series of motors have a beautiful appearance, a higher protection level than the YB series, and more safe and reliable use. At the same time, the starting performance is better, and the noise and vibration are lower than in the YB series. It can be used in underground coal mines (non-mining working faces) and factories containing explosive gas mixtures.
YB2 series flame-proof three-phase asynchronous motors strictly comply with the standard JB/T7565.1-2004 "YB2 series flame-proof three-phase asynchronous motors technical conditions" and obtain the explosion-proof certificate to organize the production of the whole series from 63 to 355 a total of 15 frame sizes, power from 0.12 to 315kw 117 specifications. The factory is currently producing a total of 63~280 13 frame sizes, power from 0.12~90kw, and 82 specifications.
YB2 Series Explosion-proof Three-Phase Asynchronous Motor Operation Range:
1. Frame Size: 63-355 MM;
2. Rated Output: 0.12-315 KW or 0.10-420 HP;
3. Rated voltage：220V/380V/400V/415V/460V/660V or on request
4. Rated frequency：50/60Hz
5. Poles: 2 / 4 / 6 / 8 / 10 ;
6. Speed: 590 —2980 r/min
7. Mounting: B3; B35; B34; B14; B5; V1;
8. Duty/rating: continuous(S1)
9. Flame-proof marks：Exd I, Exd II AT4, Exd II BT4, Exd II CT4.
10. Protection class： IP54/IP55
11. Cooling method： IC411
12. Ambient temperature: -15℃～40℃
13. Altitude: not exceeding 1000 meters above sea level
14. Relative humidity: less than 90%
15. Connection: Star-connection for 3KW or less, whereas delta-connection for 4KW or more.
16. Insulation class: F, the temperature rise of the stator winding is examined at 80K(by resistance method).
Motor Model Representation and Explosion-proof Instructions：
The explosion-proof performance of this series of motors complies with GB3836.1-2000 "Electrical Equipment for Explosive Gas Environments Part 1: General Requirements" and GB3836.2-2000 "Electrical Equipment for Explosive Gas Environments Part 2: Explosion-proof Type "d" The regulations are also compliant with the provisions of IEC79-1, BS4683 and EN50018 to create an explosion-proof type. The explosion-proof marks are ExdI, ExdIIAT4, ExdIIBT4, and ExdIICT4, which are suitable for use in places where explosive gas mixtures are present.
ExdI is suitable for use in underground coal mine non-mining face environments where explosive mixtures of methane or coal dust are present.
ExdIIAT4 is suitable for factory class IIA, where the temperature group is the presence of an explosive gas mixture of Groups T1, T2, T3, and T4.
ExdIIBT4 is suitable for factory-use Class IIB temperature groups in the presence of explosive gas mixtures in the T1, T2, T3, and T4 groups.
ExdIICT4 is suitable for factory-use Class IIC temperature groups in the presence of explosive gas mixtures in the T1, T2, T3, and T4 groups.
YB2 Series Explosion-proof Three-Phase Asynchronous Motor Technical Data:
YB2 Series Flameproof Three-phase Asynchronous Motor Features:
1. A cylindrical shaft extension is equipped on motors driven by coupling or spur gearing.
2. The stator windings are wound with polyester enamel round wire of high strength and then treated with vacuum pressure impregnation to make them a solid integral. Therefore, the winding insulation is excellent in electrical and mechanical properties, moisture resistance, and thermal stability.
3. The rotors are cast aluminum and dynamically balanced to make the motor operate smoothly with a slight vibration and low noise.
4. The stator and rotor cores are laminated with high-class electrical steel sheets with high permeability and low loss, thus making the motors possess low class and high efficiency.
5. The motors are fitted with low vibration and noise bearings, mainly for motors. For the motors of frame size 160 and below, bilaterally shielded ball bearings are used. Corrugated spring washers at the driving ends are pressed on bearings with proper pressure to effectively restrain the vibration and noise produced during motor operation for the motors of frame size 180 and above.
The bearings with inner and outer covers are used, and retaining rings at the bearing position are equipped on shafts to prevent the rotor efficiently from moving axially. To operate safely and reliably, the bearings of the motors flame size 180 and above are provided with greasing Attachments, which drain or replenish the lubricating grease without stopping the motors. For the frame size 250 and above, the position for mounting bearing temperature monitoring censers is preliminary left.
6. For the motors of frame size 280 and below, the fans are made of frictional electric proof plastic, being of slight inertia movement and low loss characterize. However, for the motors of frame size 315 and above, the cast-aluminum or steel-plate-welded fans are fitted, which are lightweight and high strength. The fans are key-jointed on the shaft for the whole series of motors to make the operation safe and reliable. The cowls are made of fabricated steel plates. On a prerequisite of preventing the ingress of solid substances of a specific size, they enable the motors to get the maximum ventilation area to form adequate currents.
7. Terminal box: The protection degree for the enclosure is IP55. The terminal box is located on the top of the motor. The inside of the terminal box is spacious and easily accessible. Cables can be fitted either from the left or right side of the terminal box. Lead-in can be of rubber-sheathed cable or steel pipe wiring. According to different requirements of starting the motor, the terminal box is made of either one entry for direct staring or double entry for Y-△ starting threaded flame-proof structure is provided between the terminal box base and the central space of the flame.
Between the terminal box base and the connecting tunnel, a connecting sleeve is equipped with a rubber pad fitted inside for an airtight seal. When servicing, removing the rubber pad is unnecessary; only the connecting sleeve is to be removed to ensure flame-proof. The terminal box is designed to have three or six terminals upon request. A terminal for grounding is provided in the terminal box for safety.
Three-phase Asynchronous Motor Product Processing
YB2 Series Explosion-proof Motors Coverage of Application
YB2 explosion-proof asynchronous motors are mainly used in coal, oil and gas, petrochemical, and chemical industries. In addition, it is widely used in textiles, metallurgy, city gas, transportation, grain and oil processing, paper, medicine, and other departments. Explosion-proof motors are the leading power equipment commonly used to drive pumps, fans, compressors, and other transmission machinery.
YB2 Series Flameproof Three-Phase Asynchronous Motor Notice on Order:
1. Please indicate the motor type, rated output, rated voltage, rated frequency, synchronous speed, Explosion proof Mark, mounting type, rotation direction(view from the shaft extension side), and Use of the environment(indoor or outside). If the user has not pointed out the rotation and environment, we usually think it is CW rotation and used indoors.
2. When the user has unique requirements, For example: Dispose of the stator, bearing explosion proof and bearing temperature sensors, space heater, Plateau use, special frequency, mounting size change, or special output, the user must order can be confirmed after signing the technical agreement with the engineering department.
3. This range of the motor can also be made into Variable-Frequency motors, the frequency range of which is 0-100HZ; the output and overall dimensions should be confirmed separately.
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Q: Are you trading company or manufacturer ?
A: Our group consists in 3 factories and 2 abroad sales corporations.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: How long is your delivery time ? What is your terms of payment ?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization. For standard products, the payment is: 30% T/T in advance ,balance before shipment.
Q: What is the exact MOQ or price for your product ?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.Thus, MOQ and price may greatly vary with size, material and further specifications; For instance, costly products or standard products will usually have a lower MOQ. Please contact us with all relevant details to get the most accurate quotation.