Engineered in compliance with IEC 60034 and GOST standards, our medium-voltage AC induction motors feature Vacuum Pressure Impregnation (VPI) insulation, heavy-duty cast iron or welded steel frames, and ultra-high efficiency ratings for continuous operation across Central Asia.
Under the umbrella of the "Uzbekistan 2030" National Strategy, the country is undergoing an unprecedented industrial transformation. Modernising heavy industrial assets across Tashkent, Navoi, Almalyk, Fergana, Samarkand, and Kashkadarya requires robust, energy-efficient medium-voltage electric drive systems that seamlessly replace aging Soviet-era motors (such as A4, DAZO, and AKZ series) while surviving extreme climatic and environmental stresses.
Uzbekistan’s industrial electricity distribution relies heavily on 3.3kV, 6kV, and 10kV three-phase 50Hz networks. Operating heavy machinery directly on these medium-voltage lines eliminates step-down transformer copper losses and slashes copper cabling cross-section costs dramatically.
Industrial sites in the Kyzylkum Desert and Fergana Valley face extreme temperature ranges—from freezing winters (-25°C) to scorching summers (+48°C), compounded by airborne quartz sand and mineral dust concentrations.
With Uzbekistan mandating industrial energy auditing and carbon intensity reduction, transitioning from fixed-speed direct-on-line (DOL) setups to Variable Frequency Drive (VFD) controlled IE3/IE4 efficiency motors yields up to 35% electricity savings.
Selecting the appropriate rotor topology, cooling enclosure, and mechanical structure is critical to optimizing operational expenditure (OPEX) and maintaining 99.8% process uptime.
| Motor Series | Rotor Type | Voltage Options | Cooling Method | Protection Rating | Typical Industrial Application in Uzbekistan |
|---|---|---|---|---|---|
| YKK Series | Squirrel Cage Cast Al / Cu | 3.3kV, 6kV, 10kV | IC611 (Air-to-Air Heat Exchanger) | IP44 / IP55 | Thermal Power Plant Boiler Draft Fans, Centrifugal Water Pumps, Air Compressors |
| YRKK Series | Slip Ring / Wound Rotor | 3.3kV, 6kV, 10kV | IC611 (Air-to-Air Heat Exchanger) | IP54 / IP55 | Navoi & Almalyk Heavy Ball Mills, Primary Jaw Crushers, Heavy Conveyors |
| YKS / YKS-W | Squirrel Cage High Torque | 6kV, 6.6kV, 10kV | IC81W (Air-to-Water Heat Exchanger) | IP55 | Compact indoor installations, Chemical process pumps, Compressor drives |
| YVFE2 / YVF3 | VFD Inverter-Duty Squirrel Cage | 380V - 660V / 3.3kV | IC416 (Forced Auxiliary Cooling) | IP55 / IP56 | Variable-flow oil pipeline boosters, Municipal water distribution networks |
| YB2 / YBX3 / OMEX | Explosion-Proof Squirrel Cage | 380/660V, 3KV, 6KV | IC411 (TEFC Surface Cooled) | Ex d IIB/IIC T4 IP55 | Fergana & Bukhara Oil Refineries, Gas Processing Plants, Chemical Storage |
When replacing legacy Russian-designed motors (such as A4-400, DAZO4, or AKZ2 series), mounting dimensions, shaft heights, and center distances must match existing concrete foundations. Our engineering team provides direct 1:1 drop-in replacement designs with customized flange adapters and shaft extension modifications, eliminating foundation modification costs and minimizing downtime during plant revamps.
Our medium voltage three-phase induction motors are field-proven across Uzbekistan's core economic sectors, demonstrating superior longevity under arduous duty cycles.
In the vast mining operations of NMMC (Navoi Mining & Metallurgical Combinat) and AMMC (Almalyk), medium-voltage motors drive continuous ball mills, sag mills, rock crushers, and mine dewatering pumps.
Recommended Solution: YRKK Series Slip Ring Motors (6kV/10kV, up to 5000kW). The wound rotor design enables liquid resistance starters to deliver ultra-high starting torque (up to 2.5x rated torque) while restricting starting current spikes below 1.5x nominal current, preventing grid voltage sags.
Uzbekistan relies heavily on large-scale canal pumping stations to lift irrigation water from the Amu-Darya and Syr-Darya rivers to farmlands across Samarkand, Bukhara, and Karakalpakstan.
Recommended Solution: YKK High Voltage Squirrel Cage Motors (3.3kV / 6kV, IP55, IC611). Designed for S1 continuous non-stop duty during peak irrigation seasons, equipped with SKF re-greasable bearings rated for over 100,000 hours L10h bearing life under heavy radial thrust.
Gas processing plants and hydrocarbon refineries in Mubarek, Shurtan, and Fergana demand explosion-proof medium-voltage motors capable of operating safely in hazardous Zone 1 and Zone 2 gas atmospheres.
Recommended Solution: OMEX / YB2 Explosion-Proof Medium Voltage Motors (Ex d IIB / IIC T4, 3.3kV to 10kV). Built with flameproof enclosures tested against internal explosion pressure, preventing spark ignition in volatile gas environments.
Major power plants such as Syrdarya TPP, Tashkent TPP, and Navoi TPP utilize large induction motors for boiler feed pumps, induced draft (ID) fans, forced draft (FD) fans, and circulating water systems.
Recommended Solution: YKS Air-to-Water Cooled MV Motors (6kV / 10kV, IE3 efficiency). Air-to-water cooling (IC81W) reduces indoor heat dissipation, maintains low operating noise (< 80 dB), and offers high power density in space-constrained turbine halls.
Combining 50+ years of European electro-mechanical design heritage with state-of-the-art Chinese manufacturing scale, we deliver uncompromised quality, fast lead times, and seamless logistics across Central Asia.
Inheriting the precision technical heritage of European motor design, our engineering team adheres to strict electromagnetic design calculations. Every stator frame features high-grade 50WW470 or 50WW290 cold-rolled silicon steel laminations for minimal core hysteresis losses.
Stators undergo full-vacuum pressure impregnation with Class H solvent-free resin, followed by high-temperature baking. This guarantees high dielectric insulation strength, zero air voids, maximum heat dissipation, and resistance to chemical moisture in harsh Uzbek industrial climates.
Located near major direct freight rail routes (Xi'an/Lianyungang to Khorgos/Alashankou, arriving directly at Tashkent Commodity Station), our supply chain guarantees safe, fast transit in under 15-20 days, avoiding complex maritime transit delays.
Direct technical answers addressing certification, grid compatibility, logistics, and technical customization for Uzbek engineers and procurement specialists.
Yes. Our motors are manufactured in full compliance with both international IEC standards (IEC 60034 series) and regional GOST standards (GOST 183-74, GOST 2812-89). We provide full GOST-R / UzStandard (EAC) certification documents required for customs clearance and official industrial grid commissioning across Tashkent, Samarkand, and Navoi.
When connected to medium voltage frequency inverters (such as 6kV PWM VFDs), high-frequency common-mode voltages induce shaft voltage spikes that destroy ball bearings. We equip all VFD-driven MV motors with insulated Non-Drive End (NDE) end-shields or ceramic insulated bearings, combined with grounding carbon brushes on the drive side to safely bypass shaft currents, guaranteeing 100,000+ hours of maintenance-free bearing life.
Absolutely. We maintain a full database of legacy Soviet-era motor dimensions. By customizing our YKK/YRKK cast iron or welded box frames, we match terminal box orientation, shaft height (H355 to H1000), mounting bolt hole spacing, and coupling specifications 1:1, allowing direct drop-in installation on existing concrete foundations in less than 24 hours.
Every medium voltage motor includes 6x Pt100 RTD duplex temperature sensors embedded in the stator windings (2 per phase) and 2x Pt100 sensors installed directly inside the drive end (DE) and non-drive end (NDE) bearing housings. Temperature monitoring signals are routed to an IP65 auxiliary junction box for easy integration into local Siemens, ABB, or Schneider DCS/SCADA control systems.
We support multiple flexible trade arrangements including T/T, L/C at sight, and CIP Tashkent / DAP Almalyk terms. Equipment is packed in heavy-duty export sea/rail-worthy wooden crates with moisture-proof barrier foil and silica desiccant bags, shipped directly via China-Europe Central Asian Rail Express (Khorgos/Altynkol border crossing) straight to your plant site in Uzbekistan.
Need precise technical datasheets, CAD 3D foundation drawings, or a competitive factory-direct price quotation for 3.3kV, 6kV, or 10kV Medium Voltage Induction Motors? Contact our senior electro-mechanical engineering specialists right now.
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