As Latin America’s largest economy, Brazil presents a complex, high-demand industrial landscape characterized by deep investments in mining, oil and gas, agriculture, pulp and paper, and the massive sugarcane-based bio-ethanol production sector. Operating electrical machinery in Brazil demands deep familiarity with regional engineering realities, including unique electrical configurations, local environmental regulations, and highly stringent domestic certifications. Low voltage AC electric motors are the literal workhorses powering this economic progress.
Unlike standard European or unified North American networks, the Brazilian grid operates primarily at 60 Hz with regional voltage fluctuations ranging from 127V/220V up to 220V/380V or even 440V. Low voltage motor design must feature high voltage tolerance (typically ±10%) and insulation systems optimized to prevent premature breakdown due to thermal fatigue and harmonic distortion under localized voltage instabilities.
Brazilian operations span across harsh humid equatorial forests, dry dust-heavy iron ore mines (such as Vale's Carajás operations), and offshore marine environments. Motors must feature robust ingress protection (IP55 to IP66), epoxy marine coatings (C5-M environment class compatibility), and specialized condensation prevention systems like internal anti-condensation space heaters.
Developing low voltage electric motors (defined up to 1000V) for the Brazilian market requires bridging international design codes. OEMs and operators must specify equipment satisfying both international standards (IEC 60034 series) and NEMA (MG1 standards) depending on the end-use legacy site requirements.
| Feature / Standard | IEC Low Voltage Design (EU/Global) | NEMA Standard Design (Americas) | Wolong Customization for Brazil |
|---|---|---|---|
| Enclosure & Frame | Metric (80 to 355mm Frame Sizes) | Imperial (143T to 449T Frame Sizes) | Dual-standard configuration (Metric & NEMA retrofits) | Efficiency Class | IE3, IE4, IE5 (IEC 60034-30-1) | Premium Efficient (NEMA MG1 Table 12-12) | Certified IE3/IE4 & Ultra-efficient PMSM up to IE5 |
| Hazardous Areas | ATEX / IECEx Zone 1, 2, 21, 22 | Class I/II, Div 1 & 2 | INMETRO certified, Ex d(e), Ex eb, Ex ec protection |
| Typical Applications | Global modular process skids | Legacy mills, heavy infrastructure pumps | Tailor-made for pulp refiners, sugar crushers, slurry pumps |
Equipped with reinforced Class H insulation systems and insulated bearings (non-drive end) to mitigate micro-bearing EDM current erosion caused by modern high-speed IGBT frequency changers.
All motor rotors are dynamically balanced to vibration grade A (or grade B for high precision) according to ISO 8821, reducing mechanical wear on connected equipment in high-stress sugar mill operations.
Utilizing high-grade polyester-imide/amide-imide wires treated with Vacuum Pressure Impregnation (VPI) to eliminate air pockets, boosting thermal conductivity and moisture resistance.
Shaanxi Nanfang Motor Technology Co., Ltd.
Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized distributor of Wolong. Wolong Electric Drive Group Co., Ltd. was founded in 1984 and successfully listed in 2002 (code SH600580). After more than 30 years of development, Wolong has 3 manufacturing bases, 39 factories, and 3 R&D centers worldwide now. Wolong has always focused on the manufacture of motors and control systems, committed to a global brand strategy, making Wolong a leader in R&D, technology, process, manufacturing and sales in the global market.
Through strategic global integration, Wolong acquired the world's most historically significant industrial motor and drive technology brands. This allows us to deliver solutions configured with premium German, Austrian, British, and American technical specifications to the Brazilian and South American markets.
Acquired in 2011. Comprises industry legends ATB, Morley (world-renowned 130-year old mining motor brand), and Laurence Scott. Delivers state-of-the-art low starting current machinery, and heavy duty explosion-proof mining drives.
Incorporated into Wolong. Over a century of electric motor expertise, pioneering energy-efficient electric designs. Operates premium low/medium/high voltage range drives and adjustable speed drives.
Acquired in 2011. Setting quality standards since 1882 for petrochemicals, oil and gas, shipbuilding, and water management driving systems.
Acquired in 2018. Massive boost to industrial manufacturing standards, supplying low and medium voltage motors globally for hazardous chemical, steel, cement and power generation systems.
Different kinds of Ex certificate for your industry and market, ensuring hazard safety compliance across worldwide zones.
IE5, IE4, and IE3 motor configurations available. We also provide cutting-edge permanent magnet speed-regulated options.
Rich product line covering low voltage, high voltage, and specialty machinery meeting the needs of differing hazardous areas.
WOLONG has secured the majority of product certifications, enabling it to penetrate demanding global international markets:
Nemko / ATEX
CSA
CE
CCC
The rotor features the squirrel cage design, with cast aluminum rotors being widely utilized. These rotors are produced using either centrifugal aluminum casting or die-casting techniques, where molten pure aluminum is poured into the slots of the rotor core, resulting in a single-piece construction that integrates the rotor bars and end rings. The structural integrity and manufacturing process of cast aluminum rotors guarantee the motor rotor's reliability, and also endow the motor with outstanding torque properties.
For larger capacity motors, copper bar rotors are employed, which benefit from dependable bar securing and end ring welding procedures. Additionally, the protective ring design of high-speed motors further ensures the reliable operation of the copper bar rotor.
The coil is crafted from polyester film and reinforced with glass cloth, utilizing either low-powder mica tape with a high mica content or medium-powdered mica tape with an abundance of mica. Following the VPI (Vacuum Pressure Impregnation) process, a pristine white coil emerges from the production line. After the billet is extracted from the wire, it proceeds through the VPI process to transform into a finished unit. The winding and insulation are meticulously engineered to provide exceptional electrical performance, mechanical strength, resistance to moisture, and thermal stability.
The motor frame employs a fully digital platform for structural and fluid multi-physics field simulations. This simulation platform retains the original patent's structure and design, utilizing mature, high-strength cast iron (or steel as an alternative). The frame boasts exceptional structural redundancy, outstanding heat dissipation properties, and ample inherent frequency isolation margins for the entire machine. It is engineered to endure significant mechanical shocks, maintain a superior vibration level, and ensure a lower temperature increase in the motor.
The low-noise fan cover system comprises a fan cover body, an air guide cylinder, a protective window, and a silencer plate. Its compact structure and lightweight design facilitate vibration reduction. The air inlet is situated on the side, which optimizes the avoidance of obstacles behind the motor, minimizing adverse effects on ventilation and reducing noise caused by energy loss during propagation path changes. The system also incorporates sound-absorbing materials that absorb noise, thereby lowering the overall motor noise. Additionally, the fan cover is rated IP22, ensuring that hands cannot come into contact with the fan.
Importing and installing AC Low Voltage Motors in Brazil requires more than just high-quality electrical designs. It requires strict legal alignment with Brazilian federal guidelines. Non-compliant machinery risks customs rejection, heavy fines, and operational bans on site.
Every commercialized three-phase induction motor operating within power ratings defined under Brazilian laws (typically 0.75kW to 185kW or more) must satisfy target energy efficiency levels registered with INMETRO (National Institute of Metrology, Standardization and Industrial Quality). Our motors conform directly to current Minimum Energy Performance Standards (MEPS), facilitating ease of import clearance.
Our motors align dynamically with Brazilian Association of Technical Standards (ABNT) guidelines. This includes ABNT NBR 17094 (Parts 1 & 2), ensuring standard electrical characteristics, test methods, and safety criteria match regional preferences, enabling drop-in physical replacement for local machinery installations.
Modern electric systems cannot operate in isolation. Shaanxi Nanfang Motor, through its strategic Wolong product lines, integrates specialized drive setups across four major segments in the Brazilian commercial landscape:
Driving processing mills, slurry pumps, and heavy overland conveying setups at primary sites demands high starting torque and continuous thermal capacity. Utilizing the ATB Morley underground-approved architectures, we build heavy-cast housings with high service factors (SF 1.15 to 1.25) capable of running continuously amidst abrasive dust deposits and intense grid shocks.
With Petrobras standard specifications demanding safety configurations above classic norms, our explosion-proof models (including Nanyang explosion-proof lineages) comply natively with ATEX/IECEx. We integrate copper bar designs for highly stable performance under explosive atmospheres, alongside robust marine-grade anti-corrosive finishes.
Sugarcane processing plants generate biomass dust and require equipment to withstand intensive chemical washes. Our motors provide stainless-steel component configurations, chemical-resistant epoxy coatings, and sealing arrangements optimized against acid moisture intrusion.
Water treatment utilities across municipalities require maximum uptime and minimal operating expenses. Our ultra-efficient permanent magnet synchronous motors (PMSM) decrease energy demands by up to 15% when combined with smart variable frequency controllers (VFDs), achieving rapid ROI within municipal operation budgets.
The industrial landscape in Brazil is rapidly moving towards "Industry 4.0" automation. Electric motors are no longer simple mechanical transducers; they are smart sensor nodes. Our engineering roadmap targets three core technological evolutions:
Integrating non-invasive temperature sensors (PT100) and wireless vibration sensors onto motor bearings. Real-time telemetry detects misalignment, bearing wear, and phase imbalances before sudden downtime occurs on remote sites.
By transitioning from classic induction configurations to Permanent Magnet Synchronous Motors (PMSMs), we enable ultra-high efficiency ratings exceeding IE5 standards, even at partial speed loads.
Co-developing matched drive/motor setups that actively reduce electrical stress. Insulated bearing sleeves combined with shaft grounding rings safely shunt harmonic shaft voltages to earth.
Yes. Our range of three-phase asynchronous motors is designed and verified to conform directly with Brazil's Minimum Energy Performance Standards (MEPS) established under INMETRO guidelines. We configure our motors to standard efficiency classifications up to IE3, IE4, and ultra-high IE5 levels.
We supply low voltage motors operating at 60 Hz with flexible winding configurations that accommodate Brazil's regional grid voltages, such as 220V, 380V, and 440V. Our designs feature a robust ±10% voltage tolerance and Class F/H insulation systems to handle grid variations safely.
Our industrial explosion-proof motors (including the YE3 and YE5 series) possess ATEX, IECEx, and INMETRO-aligned Ex d (flameproof), Ex de (flameproof with increased safety terminal box), and Ex ec (non-sparking) certification standards, ensuring complete safety compliance in refinery, chemical, and mine sites.
Absolutely. We construct our motors with VFD compatibility in mind, using reinforced vacuum-pressure impregnated (VPI) insulation winding systems. For higher frame sizes (typically 280 and above), we incorporate insulated non-drive end bearings to eliminate shaft currents and protect the motor's mechanical integrity.
Through Wolong’s global network of 39 factories and local commercial partnerships, we coordinate streamlined logistics, customs clearing compliance support, and comprehensive engineering consultations. We assist in resolving import requirements to ensure seamless delivery to Brazilian ports.
Contact our senior team of motor application engineers today. We supply high-performance, compliant, and cost-effective low voltage drive architectures built to endure Brazil's harshest industrial environments.
Send Inquiry Now
NANFANG
