The shaded-pole motor is the original type of AC single-phase induction motor, dating back to at least as early as 1890. A shaded-pole motor is a small squirrel-cage motor in which the auxiliary winding is composed of a copper ring or bar surrounding a portion of each pole. When single phase AC supply is applied to the stator winding, due to shading provided to the poles, a rotating magnetic field is generated. This auxiliary single-turn winding is called a shading coil. Currents induced in this coil by the magnetic field create a second electrical phase by delaying the phase of magnetic flux change for that pole enough to provide a 2-phase rotating magnetic field. The direction of rotation is from the unshaded side to the shaded side of the pole. Since the phase angle between the shaded and unshaded sections is small, shaded-pole motors produce only a small starting torque relative to torque at full speed. Shaded-pole motors of the asymmetrical type shown are only reversible by disassembly and flipping over the stator, though some similar looking motors have small, switch-shortable auxiliary windings of thin wire instead of thick copper bars and can reverse electrically. Another method of electrical reversing involves four coils.
Our company is located in the center of Shenzhen City. We are a specialized factory that produces AC universal motors, shade pole motors, induction motors and synchronous motors. Our products are applied to various kinds of devices, like kitchen appliances, air flow products, air conditioners, water heaters, water & induction pumps, power tools and electrical toys as well as household appliances.
In line with the management idea of "humanist, the good faith is supreme" and the quality consciousness of "strives for perfection", we have gathered a team of specialists for engineering, manufacture, quality control, production management and technology development.
Our company comprehensively complies with ISO9001:2001 management systems. We are supplying our motors to many famous worldwide companies of top brands with different applications in Europe, the Middle East, East Asia and South America.
We are one of the leading exporters and manufacturing groups of special electric motors in China. Our main motors include AC motors, DC motors, permanent magnet motors, brushless motors, stepping motors, NEMA Motors, gear motors, synchronous motors, hysteresis motors, shade pole motor, external rotor motor etc. All of our factories are ISO9001 approved and some products had passed UL, TUV, CE, CSA, GS approval etc.
Our production ability altogether reaches more than 20 millions units annually, so we can meet the large demand from world famous multinational companies and had large quantity OEM ability. Our products are widely used in various industries, and electric appliance like air conditioners, refrigeration, ventilation, heating, boilers, burners, washing machines, microwave ovens, vacuum cleaners, automatic gates, power tools, medical appliances, office automation, textile facilities, electric vehicles, lab machines, electric door locks, automobiles, valve, pumps etc.
With our experience in motor business for more than 30 years and advanced production and testing facility imported from USA, Europe and Japan, our products are guaranteed of high quality with high efficiency, low noise, long working life, and safety running.
Other products exported include spare parts of electric motors, stamping parts, bearing, die casting products, end bell, shafts, magnet, thermostat, fan and blower wheel, wire plug, moulds, switch, relay, timer, buzzer, plastic tube, wire harness, rubber parts, copper tube, pump, electric door lock, air damper actuator, motorized valve, HVAC components, PCB, piezoelectric ceramic, adaptor/transformer and other products. The following are the advantages of our products:
1) Good quality
2) Large scale and prompt delivery
3) Low price based on low cost
4) Strong research and develop ability with own powerful research institute
5) Use most advanced machinery and testing machine in the world
Our new products in 2007/2008 include:
1) New Hysteresis synchronous motor for valve control, actuator and defrost timer
2) New motor and exhaust fan for Europe type oil burner
3) New exhaust fan for domestic boiler
4) AC and DC brushless gear actuator for medical bed
5) DC motors for lawn mower and engine
6) DC brushless automotive A/C and ventilation application
7) DC brushless direct drive motor for electric wheel chair
8) Full line 3.3" shade pole and PSC motor for USA market
9) Full line of Nema 48 and Nema 56 frame TEFC and ODP motor for USA and Canada market
10) Full line of AC and DC external rotor motor, axial fan, centrifugal fan for USA and Europe
11) Full line of window lift motor and wiper motor for automotive
If you are interested in any of our products, please feel free to contact us for more information. We welcome world famous manufacturers and agent joint ventures with us for producing electric motor and related products, spare parts in China.
Established in 1989, Lungkai Micro Motor is a Sino-foreign joint venture. It is a professional manufacturer that integrates the design, development and production of DC motors, AC synchronous motors, AC asynchronous motors, AC single-phase series motors, and other miniature motors. China, and exported to the United States, EU countries and Southeast Asian countries, the product quality is in the forefront of the same industry; the company has won the "National Advanced Foreign Exchange Earnings Award", "National Double Foreign Investment Enterprise Award", "National Township Enterprise Export Advanced Enterprise", etc. Awards. With an area of more than 25,000 square meters, the factory has 25 production lines, annual output of 50 million DC motors, and 5 million AC motors, with an annual output value of over RMB10,000.
We have strong design and development capabilities. Using 3D software design, we have labs to test new products. In the past 30 years, we have developed S, F, ZYT series DC motors and TYQ series AC permanent magnet synchronous motors, YY series capacitor running single-phase asynchronous motors and HC series single-phase. There are a total of six series of more than 2,000 varieties of motor series, mainly for electric toys, small household appliances, cameras, hair dryer, electric tools, air pump, electric whiskers, electric toothbrushes, portable electric sewing machines, models, Quartz clock ticker, car central locking, blender, juicer, car toys, automated office systems, massage (chairs, mattresses), washing machine tractors and other products, the company designed motor performance is excellent, reasonable structure, Safe and reliable.
We have passed IS09001:2015 international quality management system certification, passed UL, CSA, PSE, SAA, CE, CCC certification and environmental ROHS certification. Full implementation of the "pragmatic innovation, excellence, quality win, customer satisfaction," the quality policy, the design, procurement, production, inspection and service processes such as strict control; the company has a complete detection methods and advanced equipment, such as the introduction of Japan 19JA Universal Tool Microscope, Japan SS2A Frequency-Shooter, Vibration Detector, U.S. Full-Automatic Temperature Detector, Noise Decibel Environmental Test Equipment, Environmental ROHS Detector, etc. High-precision Inspection Equipment, German Automatic Injection Molding Machine, Japan Komatsu Precision Press , Japan SODICK AQ550L high-precision wire cutting machine and other production equipment.