Engineered for high performance, thermal efficiency, and severe duty protection profiles.
In modern industrial applications, electric motors represent the workhorse of primary operations. However, severe ambient conditions—characterized by abrasive dusts, water splashes, chemical humidity, and extreme fluctuations in temperature—frequently jeopardize the structural and electrical integrity of standard electric drive systems.
The standard IP55 Enclosure (Ingress Protection rating 55) offers the optimal baseline of reliability. The first digit "5" indicates dust protection, ensuring that although dust cannot be totally prevented from entering, it does not penetrate in a quantity that interferes with the satisfactory operation of the apparatus. The second digit "5" designates protection against water jets projected by a nozzle (6.3mm) from any direction against the enclosure, without harmful consequences.
Going beyond catalog standards to optimize thermal transfer, mechanical coupling, and corrosion dynamics.
Standard IP55 motors can be configured with premium oil seals, V-rings, labyrinth seals, or magnetic face seals. This is crucial for environments with floating micro-particles or direct splashing fluids.
Upgrade to high-grade mica-insulated copper wire and specialized resin varnishing. Class H insulation allows safe operation under high temperatures and ensures the motor tolerates current spikes.
We custom design TEFC (Totally Enclosed Fan Cooled - IC411), TENV (Totally Enclosed Non-Ventilated), TEAO (Totally Enclosed Air Over), and water-to-air (IC81W) or air-to-air cooling options.
| Custom Parameter | Standard Specification | Advanced Custom Options | Ideal Localized Scenario |
|---|---|---|---|
| Enclosure Material | Grey Cast Iron (HT200) | Ductile Iron, Welded Steel Plate, SS316 | Chemical plants, underground mining |
| Cooling System | IC411 (Self-fan cooling) | IC416 (Forced ventilation), IC611, IC81W | Low-speed VFD operations, steel mills |
| Vibration Controls | Grade A limits | Grade B low vibration, SPM monitoring probes | Precision machinery, high-speed fans |
| Winding Protection | Class F insulation (155°C) | Class H insulation (180°C), double VPI process | High altitude, continuous heavy-start duty |
Xi’an Lite SIMO Motor Co., Ltd is an electric company, main enterprise specializing in the manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motor, and explosion-proof motor in the Chinese mechanical industry. SIMO is a comprehensive manufacturing and service supplier of motor design, manufacturing, mechanical processing, mold making, assembling. The Company ranks TOP in China’s motor industry as to its scale of production, and has maintained fast-growing development trend for consecutive years.
With registered capital of 21.5 million RMB, SIMO operates 3 manufacturing factories and one subsidiary factory, utilizing fixed assets worth 380 million RMB and more than 1172 sets of advanced manufacturing and testing equipment. Our human capital comprises over 1200 employees, including more than 260 technical engineers, 21 senior engineers, and 15 expert engineers.
Over 60 years of dedicated research, manufacturing excellence, and global service.
SIMO's R&D and manufacturing cover all types of motors, spanning 34 major series, more than 1,800 varieties, and more than 19,500 specifications, with power output ranges from 0.35kW to 25,000 kW.
Main motor products designed and developed by SIMO include:
SIMO electric motors are certified to conform to major international regulatory and quality frameworks, ensuring smooth customs processing and hassle-free regional approvals.
We have successfully passed the ISO9001 Quality System Certification, EU "CE" certification, US "UL" listing, Russian "GOST-R/EAC" certification, ATEX/IECEx explosion-proof compliance, and other major regional benchmarks. Our motors are widely integrated into critical infrastructure systems, serving metallurgy, mining, railways, aviation, chemical processing, and agricultural projects globally.
Unlocking value through raw material verticality, structural testing, and local support engineering.
Based in Xi'an's high-tech manufacturing zone, SIMO has direct logistics links and deep purchasing agreements for silicon steel and high-purity electrolytic copper. This ensures dynamic price hedging and lower costs for global procurement.
SIMO supports local service systems. Our engineers provide custom wiring schematics, localized voltage ratings (e.g., 380V, 415V, 660V, 6kV, 10kV), and terminal box re-configurations to meet local regulations.
By using IE4/IE5 level premium materials, our custom IP55 motors drastically reduce daily energy consumption. High-grade bearings increase mean time between failures (MTBF), lowering maintenance costs over a 20-year lifespan.
How our custom Enclosure IP55 Motors perform in critical field scenarios worldwide.
In dust-heavy, high-impact underground coal mines and raw ore crushers, our IP55 motors prevent abrasive iron and coal dust from getting inside the motor. Utilizing models like the YBK3 flameproof motor, operations maintain high safety levels and robust output under dust-explosion conditions.
For chemical pump systems and process gas compressors, humidity and volatile fumes are constant hazards. Our custom YBX4 and YBX5 explosion-proof motors combine IP55 rating with EX d IIC T4 protection, ensuring safety in Class I Division 1 or Zone 1/2 environments.
For irrigation, water works, and chemical wastewater pumping stations, motors are exposed to continuous moisture and splashing water. Using YKS and YKS-water-to-air cooling options ensures temperature stability even in humid, high-saline coastal pump stations.
Aligning with carbon-neutral mandates through efficiency upgrades and structural intelligence.
The industrial sector accounts for over 60% of global electricity consumption, with electric motors drawing the vast majority of this power. In response to global carbon reduction mandates, the industrial motor sector is undergoing three major transitions:
Answering major technical and logistical inquiries of international motor procurement managers.
Delivering high torque and energy efficiency for heavy industrial machinery.
Lite Simo
