Explore our most frequently specified electric motors for heavy duty industrial compressors.
Process gas compressors are the heart of global refineries, petrochemical complexes, natural gas processing facilities, and chemical synthesis loops. Driving these high-power machines demands an electric motor manufacturer with deep engineering expertise, rigorous safety protocols, and a robust technological foundation. Xi’an Lite Simo Motor Co., Ltd. (LITESIMO) stands at the pinnacle of this field, supplying high-performance electric motors designed specifically for reciprocating, screw, and centrifugal process gas compressors.
In high-stakes industrial operations, down-time translates directly to massive revenue loss. Standard, off-the-shelf motors cannot withstand the aggressive environment, corrosive atmospheres, high mechanical stress, and volatile gas zones that characterize gas compression plants. Simo's application-engineered solutions focus on optimized Total Cost of Ownership (TCO), providing discounted, high-yield procurement options without compromising on critical safety parameters such as flameproofing, explosion safety (ATEX, IECEx, UL, CE), and mechanical rigidity.
Xi’an Lite SIMO Motor Co., Ltd is an electric company and a primary enterprise specializing in the manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motors, and explosion-proof motors within the global mechanical industry. SIMO is a comprehensive manufacturing and service supplier providing end-to-end capabilities: motor design, advanced manufacturing, mechanical processing, high-precision mold making, and full assembly.
The company ranks at the very top of China’s motor industry regarding its scale of production and has maintained a rapid development trajectory for consecutive decades. With fixed assets exceeding 380 million RMB and more than 1,172 sets of advanced equipment, Simo's manufacturing infrastructure is built for high reliability and scale.
LITESIMO has built its legacy over six decades of constant evolution, adapting to the shifts in mechanical and electrical engineering standards worldwide.
Procuring electric motors for process gas compressors involves assessing both upfront capital expenditure (CAPEX) and long-term operational expenditure (OPEX). While the term "discount" denotes cost-effectiveness, Simo ensures this is achieved via advanced manufacturing techniques, lean supply-chain integration, and mass-scale production of standard components. The result is a highly reliable drive unit that minimizes lifetime operational and energy costs.
Industrial procurement departments globally prioritize standard compliance (API 541, API 547, IEEE 841), efficiency ratings, and structural design. Simo's motors address these through:
With 34 major series, 1,800 varieties, and 19,500 specifications, LITESIMO covers the full spectrum of compressor drives.
| Motor Series | Design Characteristics | Power Range (kW) | Primary Application Area |
|---|---|---|---|
| YXKK / YXKS | High-voltage, high-efficiency, three-phase asynchronous (Air-Air / Air-Water cooled) | 160 – 25,000 kW | High-flow centrifugal and reciprocating gas compressors |
| YR / YRKK / YRKS | Wound rotor, high-voltage induction motors with high starting torque | 185 – 10,000 kW | Compressors starting under heavy load conditions without grid voltage drop |
| YE3 / YE4 / YE5 | Low-voltage three-phase asynchronous, ultra-premium efficiency (IE3/IE4/IE5) | 0.35 – 1,000 kW | Screw process gas compressors and auxiliary hydraulic systems |
| YVFE3 / YVFE4 / YVFE5 | Variable frequency speed-regulating low/high voltage motors | 0.55 – 12,000 kW | Precise flow control systems in continuous chemical processes |
| YBX3 / YBX4 / YBX5 | Explosion-proof high/low voltage three-phase asynchronous motors | 0.18 – 3,150 kW | Hazardous chemical loops, refineries, and offshore gas rigs (Zone 1/Zone 2) |
| T / TD / TK / TDMK | Large size synchronous motors, high efficiency, reactive power compensation | 200 – 20,000 kW | Very large reciprocating and piston-type process gas compressors |
| Z2 / Z4 / Z Series | Industrial medium & large DC motors, high speed regulation | 0.55 – 2,500 kW | Specialized retrofitted setups and variable-speed systems requiring DC power |
Our engineering division utilizes 3D CAD modeling, finite element analysis (FEA), and advanced torsional analysis to ensure that every motor dynamic profile matches the compressor's shaft line. This is crucial for reciprocating compressors where pulsating torques are present, preventing mechanical fatigue and extending bearing life (sleeve or rolling element bearings).
LITESIMO motors are designed to operate under harsh conditions across major process gas fields.
We provide flameproof Ex-d and Ex-e high-voltage motors (YBX series) engineered for continuous operation in explosive atmospheres containing hydrogen, ethylene, and other dangerous hydrocarbon vapors. These motors are optimized to work safely in Zone 1 and Zone 2 areas.
Our T series synchronous motors and YXKK induction motors power high-capacity mainline reciprocating compressors. These systems are capable of running continuously under varying load profiles with high efficiency and power factor correction capabilities.
For large-scale air separation plants producing high-purity oxygen, nitrogen, and argon, we supply YXKS water-cooled high-voltage motors. These provide quiet, heat-dissipating performance that keeps the plant's ambient footprint clean and cool.
The global compression market is evolving toward decarbonization, digitalization, and increased system integration. Simo Motor is aligning its product development roadmap to meet these challenges through:
Our production facilities maintain strict quality management systems to meet international requirements.
Xi'an Lite Simo Motor has implemented the ISO9001 Quality System Certification across all levels of product design, component sourcing, casting, winding, testing, and shipping. Our explosion-proof and standard industrial motors are certified under international safety frameworks, ensuring they are accepted by global EPC contractors and engineering firms:
Our production facilities feature advanced machining, insulation, testing, and assembly systems.
Answering key questions on technical integration, logistics, and explosion protection.
Reciprocating (piston) compressors generate pulsating torque characteristics that can create dangerous torsional resonance. Simo's engineers run dynamic simulation analyses on the entire rotor assembly to calculate critical speeds and select appropriate shaft designs and rotor mass. Our large synchronous (TK, TDMK) and induction motors are configured with rugged frames, thick laminations, and robust bearings to manage these dynamic loads without premature wear.
For applications handling corrosive gases like hydrogen sulfide (H2S), we use specialized chemical-duty paint, custom stainless-steel hardware, epoxy coatings, and non-sparking materials. The internal components are protected using advanced IP55, IP56, or IP65 enclosure configurations with specialized sealing systems, shielding the windings from environmental and chemical degradation.
Simo maintains complete in-house manufacturing control across our 3 production plants and specialized subsidiary. This vertical integration—covering casting, laminating, copper drawing, and VPI processing—removes intermediate markups and keeps material quality high. Large-scale global shipping contracts also allow us to offer competitive pricing on major high-voltage and flameproof series.
Yes. The YVFE3, YVFE4, and YVFE5 series are designed specifically for VFD operation. They are built with insulated non-drive end bearings to eliminate shaft currents, forced cooling fans to ensure adequate airflow at low operating speeds, and corona-resistant winding wire to handle high-voltage spikes from fast carrier-frequency switching.
Our explosion-proof product lines (YBX3, YBX4, YBX5) are built in accordance with IEC 60079 series standards. They hold formal certifications for EU ATEX (CE mark), IECEx, UL, and GOST, making them suitable for hazardous environments containing volatile gases, coal dust, or industrial vapors.
Complete your facility planning with our range of high-efficiency, DC, and explosion-proof motors.
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