Huali Electric Motors and Industrial Drives

Select Shandong Huali three-phase electric motors for industrial pumping, ventilation, and mechanical drives: low-voltage, explosion-proof, inverter-duty, and high-voltage models.

YE3, YE4 and YE5 Low-Voltage Industrial Motors

Three-phase squirrel-cage induction motors engineered for continuous S1 industrial duty. Rigid cast iron frames with optimized cooling fin geometry deliver reliable thermal dissipation across pump, compressor, and fan drives.

Certified to Premium IE3, Super Premium IE4, and Ultra Premium IE5 efficiency standards.

Rated output from 0.75 kW to 375 kW at 380 V / 660 V, 50 Hz and 60 Hz
Ingress protection IP55 or IP56 with reinforced oil seals and V-rings
Mounting configurations include foot-mounted IM B3, flange IM B5, and B35
Heavy-duty regreasable bearings for extended trouble-free service life
Parts support: wound stators, dynamically balanced rotors, end shields, fan cowls

HM2 and HM3 Cast Iron Heavy-Duty Motors

Heavy-duty cast iron induction motor series tailored for metallurgical lines, quarry conveyors, and machine tool spindle drives. Built with high mechanical rigidity, spacious terminal boxes, and excellent tolerance against dynamic starting overloads and torsional vibrations under heavy duty cycles.

Frame sizes ranging from HM2-80 up to heavy industrial HM2-355 and HM3-355
Class F insulation system evaluated with Class B temperature rise margins
Rotatable terminal box adjustable in 90-degree steps for flexible field cabling
Precision dynamic balancing compliant with Grade A and Grade B vibration limits
Replacement parts: terminal boards, cable glands, bearing inner covers, eye bolts

YBX3, YBX4 and YBX5 Flameproof Explosion-Proof Motors

Flameproof induction motors designed for hazardous environments in chemical plants, oil refineries, gas processing stations, and coal handling facilities.

Heavy cast iron housings contain internal explosion pressures without deformation, preventing ignition transfer into surrounding explosive gas atmospheres.

Explosion-proof certification covering Ex db I Mb for mines and Ex db IIC T4 Gb for gas
Shaft heights from 80 to 355 mm with output ratings up to 375 kW
Embedded PTC thermistors or PT100 platinum RTDs for continuous stator thermal protection
Precision flamepath joints with corrosion-inhibiting treatment on machined surfaces
Parts support: certified explosion-proof terminal boxes, end covers, thermal probes

YFB3, YFB4 Dust Ignition-Proof and YBK3 Underground Mining Motors

Specialized electric motors designed for combustible dust atmospheres and harsh underground coal mining conditions. The YBK3 series drives scraper conveyors, dewatering pumps, and winches in mines exposed to methane and coal dust.

The YFB series prevents combustible dust ignition through tight IP65 enclosures.

Dust ignition certification Ex tb IIIC T130°C Db and underground mine rating Ex d I Mb
Ingress protection IP65 thoroughly prevents fine conductive dust ingress into internal cavities
High-strength alloy steel shafts and oversized bearings withstand severe belt impact loads
Multi-coat anti-corrosive epoxy exterior coating resisting acidic mine groundwater
Parts support: labyrinth dust seals, slinger rings, reinforced fan cowls, thermal cutouts

YVF2, YVF3 and YPT Inverter-Duty Variable-Frequency Motors

Inverter-duty induction motors engineered for automated industrial drives requiring stepless speed regulation. Outfitted with an independently powered auxiliary axial cooling blower (method IC416) to provide continuous forced ventilation during sustained low-frequency, high-torque operating regimes.

Speed regulation span from 5 to 100 Hz featuring constant torque and field-weakening zones
Independent auxiliary cooling fan unit IC416 powered separately from the main motor circuit
Corona-resistant magnet wire and reinforced phase insulation against high-voltage PWM spikes
Provisions for optical pulse encoders and non-drive-end electrically insulated bearings
Parts support: auxiliary blower assemblies, encoder mounting kits, insulated bearings

YKK, YXKK, YRKK and YKS High-Voltage Industrial Motors

High-voltage three-phase induction motors rated for 6 kV and 10 kV industrial grids, powering heavy pumps, mine ventilation fans, boiler blowers, and crushing mills.

YKK series incorporates a top-mounted air-to-air cooler IC611, YKS utilizes water-to-air cooling IC81W, and YRKK features a wound rotor for heavy startup.

Rated voltages 6,000 V and 10,000 V with output power ranging from 185 kW to 10,000 kW
Global vacuum pressure impregnation (VPI) insulation technology using Class F systems
Rolling-element bearings with grease nipples or split sleeve bearings with circulating oil lubrication
Dual PT100 temperature sensors embedded in stator slots and bearings plus anti-condensation heaters
Parts support: YRKK collector slip rings, carbon brushes, cooler tube bundles, sleeve shells

CY-H, Y-H and YVF2-H Marine-Duty Electric Motors

Marine-grade three-phase induction motors purpose-built for commercial vessels, offshore platforms, and dockside machinery.

Engineered to drive ballast pumps, bilge systems, anchor windlasses, cargo cranes, and engine-room blowers under continuous salt-fog, vibration, and vessel inclinations up to 22.5 degrees.

Classified and approved by leading maritime societies including CCS, BV, and DNV
Tropicalized Class F insulation with anti-fungal and moisture-resistant protective coatings
Marine-grade stainless steel external fasteners and corrosion-resistant alloy hardware
Ingress protection IP56 for exposed weather-deck installations and IP55 for machinery rooms
Parts support: watertight marine terminal boxes, sealed marine bearings, marine oil seals

YEJ Electromagnetic Brake Motors and YD Multi-Speed Motors

Electromagnetic disc brake motors series YEJ and pole-changing multi-speed motors series YD engineered for rapid deceleration, precise positioning, and mechanical shaft locking.

Ideal for overhead cranes, automated hoists, packaging machines, and metalworking machine tools demanding repeatable stopping cycles.

Integrated DC electromagnetic disc brake assembly with manual release lever mechanism
Rapid brake engagement time of 0.15 to 0.45 seconds ensuring repeatable stopping accuracy
Multi-speed YD series offering pole-switching configurations (2/4, 4/8, 4/6/8 poles)
Replaceable asbestos-free friction lining disc with high thermal capacity and wear life
Parts support: electromagnetic brake coils, rectifier modules, brake friction discs, springs

The Huali Motor manufacturer

Shandong Huali Electric Motor Group was founded in 1970 and operates three major manufacturing bases covering 450,000 m². Annual production capacity reaches 1.2 million electric motors. Product lines include low-voltage, explosion-proof, inverter-duty, high-voltage, and marine motors.

Selecting Huali Electric Motors by Nameplate

To select a replacement motor or spare components, start with a clear photograph of the metallic nameplate mounted on the stator frame. The nameplate identifies the series code, frame size designation, rated power in kilowatts, nominal speed, and voltage rating.

If the nameplate is illegible due to corrosion or wear, record the shaft center height from the mounting surface, the drive-end shaft diameter, keyway dimensions, and center-to-center distances between mounting foot holes or flange bolt circles.

Original Spare Parts and Overhaul Components

For scheduled overhauls of Huali electric motors, list required replacement parts individually. We provide factory-wound stator assemblies, dynamically balanced rotor shafts, drive-end and non-drive-end bearing shields, and heavy-duty terminal boxes.

Mounting Arrangements and Dimensional Standards

Shandong Huali electric motors strictly adhere to IEC 60034-7 international mounting standards. The standard foot-mounted IM B3 configuration enables secure bolted fastening to steel skid bases or foundation frames of pumps and compressors.

Direct coupling to industrial gearboxes and vertical pumps utilizes flange-mounted IM B5 housings or combined IM B35 foot-and-flange arrangements. Vertical shaft-down orientations are supported via IM V1 and IM V3 configurations.

High Efficiency YE3, YE4 and Ultra-Premium YE5

Transitioning to high-efficiency Huali induction motors reduces plant electrical consumption across continuous round-the-clock operations. The YE3 series satisfies Premium IE3 efficiency benchmarks under IEC 60034-30 standards.

Explosion-Proof Motors for Hazardous Environments

For classified hazardous locations in chemical synthesis, petroleum refineries, and gas terminals, Huali manufactures YBX3, YBX4, and YBX5 explosion-proof motors certified to Ex db IIC T4 Gb. Heavy cast iron frames contain internal deflagrations safely.

For underground coal mines exposed to methane and coal dust mixtures, YBK3 and YBX3 series motors feature Ex db I Mb mining certificates, resisting aggressive saline mine runoff water and mechanical debris impacts.

Variable-Frequency Drives and Stator Insulation

When driven by frequency inverters, conventional self-ventilated motors suffer reduced cooling airflow at low speeds. Huali YVF2, YVF3, and YPT series incorporate an independently powered auxiliary cooling blower unit (cooling method IC416).

High-Voltage YKK and YKS Heavy Industrial Motors

Powering mine grinding mills, primary ventilation fans, boiler draft fans, and pipeline water pumps, Huali supplies high-voltage three-phase motors rated for 6,000 V and 10,000 V grids with outputs reaching 10,000 kW.

The YKK series utilizes a robust welded steel box frame with an upper air-to-air tubular heat exchanger IC611. The YKS series employs a closed-loop air-to-water heat exchanger IC81W for facilities with industrial cooling water loops.

Marine-Duty Motors with Maritime Classification

Huali marine-duty motors series CY-H, Y-H, and two-speed YD-H are engineered for commercial cargo ships, offshore oil rigs, and harbor cranes, driving bilge pumps, ballast systems, anchor windlasses, and engine room blowers.

Technical Enquiry Preparation Guidelines

To facilitate fast technical quotation and engineering review, provide the motor series, required output power in kilowatts, rated rotational speed in RPM, mounting arrangement, and supply voltage in your initial request.

If the installation site involves extreme ambient temperatures, high altitudes above 1,000 meters, or chemical contamination, record these operating conditions. Include photographs of existing motor nameplates and driven machinery shafts.

Industrial Equipment Supply and Quality Delivery

We supply Shandong Huali electric motors and original components to commercial enterprises worldwide. Orders are handled with formal commercial invoices, packing lists, technical compliance certificates, and manufacturer warranty documentation.

Every electric motor undergoes rigorous factory quality testing, including winding insulation resistance measurement, no-load vibration testing, and high-voltage dielectric tests before dispatch.

Availability, price, lead time, documents and technical compatibility are assessed for the specific enquiry. This page does not establish official dealership, authorised service or interchangeability between similar tool versions.