Explore our comprehensive range of ATEX, IECEx, and CE certified explosion-proof electric motors, custom-built for hazardous Zone 1 and Zone 2 environments in Barcelona and international export markets.
Understanding internal explosion containment, flame path tolerance, and thermal dissipating design under EN/IEC 60079-0 & EN/IEC 60079-1 standards.
Unlike increased safety (Ex e) or non-sparking (Ex ec) motors, an Ex d flameproof motor is designed under the physical premise that an internal explosion can and will occur if flammable gases penetrate the housing during operational thermal cycling. The cast iron or welded steel structural frame is engineered to withstand hydrostatic overpressures up to 1.5 times the peak explosion pressure (typically exceeding 10 to 12 bar) without permanent deformation or mechanical rupture.
Our custom OEM manufacturing utilizes high-tensile nodular cast iron (GGG40/GGG50) or fabricated heavy steel plates with precision-machined end shields, ensuring absolute structural integrity in hazardous Zone 1 (Category 2G) and Zone 2 (Category 3G) chemical processing sectors.
The hallmark of Ex d protection lies in the micro-engineered joint surfaces—known as the flame path (flame gaps). When an internal ignition occurs, burning hot gases are forced out through these tight joint gaps (spigot joints, flat joints, or threaded shaft entries). As the hot gas expands through the labyrinth flame path, its thermal energy is rapidly absorbed by the massive metal structural walls.
By the time the gas reaches the external ambient atmosphere, its temperature drops well below the ignition threshold of surrounding gas groups (IIA, IIB, or IIC like Hydrogen and Acetylene). Our CNC grinding achieves surface roughness below Ra 0.8 µm and maximum gap widths strictly under 0.15 mm to 0.05 mm, compliant with strict European ATEX Directive 2014/34/EU mandates.
Thermal control is paramount in flameproof motor design. Overheating on the external surface of the motor frame could ignite surrounding explosive airborne vapor or dust. Our Ex d motors are engineered with optimized electromagnetic field geometry, premium-grade vacuum pressure impregnated (VPI) Class H insulation, and high-efficiency external cooling ribs (IC411 or IC511/IC611 heat exchangers).
Whether operating under ambient temperature extremes of -50°C in cryogenic transport or +60°C in desert ambient environments, our motors maintain strict surface temperature compliance ranging from T4 (<135°C) for standard chemical processing down to T6 (<85°C) for specialized pharmaceutical cleanroom applications.
As a major European economic engine, Barcelona and the wider Catalonia region host intense chemical, pharmaceutical, logistics, and marine industries requiring highly specialized explosion-proof electric drive systems.
The industrial corridor extending from the Port of Barcelona to the Tarragona Chemical Complex represents Southern Europe’s largest chemical cluster. Facilities operating hydrocarbon crackers, ethylene storage terminals, fuel pumping stations, and gas compression plants require heavy-duty Ex d IIB / Ex d IIC T4 motors operating 24/7 in continuous duty (S1).
Specific Application: Driving high-pressure centrifugal pumps, gas re-liquefaction compressors, and crude oil mixers. Our custom OEM flange dimensions and special shaft extensions allow direct retrofitting of legacy drive units without requiring costly piping or foundation modifications.
Catalonia is home to world-leading pharmaceutical manufacturers in the Baix Llobregat and Vallès Occidental belts. These facilities process volatile organic solvents (such as ethanol, acetone, and ether) inside strict GMP-regulated cleanroom environments.
Specific Application: Low-vibration, low-noise flameproof motors (Ex d IIA/IIB T4 Gb) driving cleanroom reactors, centrifuges, fluid bed dryers, and exhaust air extractors. Our motors feature smooth anti-corrosive epoxy surface coatings that resist aggressive chemical cleaning agents while maintaining low acoustic emissions (<68 dB(A)).
The Port of Barcelona handling LNG bunkering, container shipping, and bulk chemical tankers demands drive equipment capable of withstanding extreme marine salt-spray corrosion combined with explosive gas atmospheres (Zone 1 deck machinery and pump rooms).
Specific Application: Heavy crane hoists, winch drives, dockside cargo unloaders, and ballast water treatment pumps. Equipped with marine-grade IP66 / IP67 sealing, C5-M high-durability epoxy paint systems, and anti-condensation heating elements, our motors resist saline ambient conditions while preventing internal moisture build-up.
In alignment with Catalonia’s Hydrogen Valley (Vall de l'Hidrogen de Catalunya) initiatives, local industrial parks are expanding green hydrogen production, compression, and distribution networks across the regional gas grid.
Specific Application: Ultra-safe Ex d IIC T4 / T5 flameproof electric motors engineered specifically for Hydrogen gas groups (characterized by low ignition energy and high flame speeds). These motors power high-pressure diaphragm compressors and electrolyzer circulation pumps with zero risk of sparks igniting hydrogen gas leaks.
Spanish industrial procurement directors face rigorous mandatory efficiency regulations and digital transformation goals. Here is how our OEM Ex d motors lead the market transition.
Since July 2023, the European Union strictly enforces Premium Efficiency (IE3) for explosion-proof motors rated from 0.75 kW to 1000 kW, with Super Premium (IE4) recommended for continuous high-load applications. Our Nanyang YBX3 and YBX4 series flameproof motors fully exceed EU EcoDesign standards, reducing facility electricity consumption by up to 4.8% annually while operating significantly cooler than legacy IE1/IE2 drives.
Modern industrial plants in Barcelona are rapidly migrating toward Industry 4.0 architecture. We integrate ATEX-certified wireless vibration sensors, PT100 bearing/winding temperature probes, and shaft grounding rings directly into our Ex d terminal boxes and motor frames. This allows plant engineers to monitor real-time thermal spikes, bearing wear, and air gap concentricity remotely without breaching flameproof enclosure seals.
Driven by energy savings, over 70% of flameproof motors in process industries are operated via Variable Frequency Drives (VFDs). High-frequency PWM voltage spikes from inverters can cause electrical discharge machining (EDM) in motor bearings. Our custom OEM Ex d motors feature insulated bearings, reinforced spike-resistant magnet wire, and special internal shielding to guarantee 100,000+ operating hours under VFD speed regulation.
Selecting the optimal drive technology for hazardous operational zones in industrial plants.
| Protection Type | EN/IEC Standard | Protection Principle | Hazardous Zone Suitability | Gas Group Compatibility | Primary OEM Advantage |
|---|---|---|---|---|---|
| Ex d (Flameproof) | EN/IEC 60079-1 | Contains internal explosion & quenches internal flame gap | Zone 1, Zone 2 (Gas) / Zone 21, 22 (Dust) | IIA, IIB, IIC (Hydrogen / Acetylene) | Maximum robust protection; no air purging setup required; highly resistant to harsh environments. |
| Ex e (Increased Safety) | EN/IEC 60079-7 | Prevents sparks, arcs & excessive temperatures internally | Zone 1 (Limited) / Zone 2 | IIA, IIB, IIC | Lighter frame weight; excellent energy efficiency; suitable for clean pump drives. |
| Ex p (Pressurized) | EN/IEC 60079-2 | Maintains positive internal overpressure with clean air/inert gas | Zone 1, Zone 2 | All Gas & Dust Groups | Ideal for large high-voltage motors (>2 MW to 25 MW) where flameproof casting is impractical. |
| Ex ec (Non-Sparking) | EN/IEC 60079-7 | Prevents electrical arcs under normal operational conditions | Zone 2 Only | IIA, IIB, IIC | Cost-effective replacement for standard industrial motors in low-risk ambient zones. |
Combining nearly a century of German motor manufacturing heritage with flexible OEM custom engineering and rapid dispatch across Western Europe.
When a legacy electric motor fails in a high-cost continuous chemical line, replacing it with a off-the-shelf motor often fails due to non-standard shaft diameters, center heights, terminal box positions, or foot mounting hole coordinates. Our engineering team specializes in producing 1:1 exact mechanical replicas for legacy brands (such as historic ABB, Siemens, Baldor, Alstom, or Brook Crompton models). We match your existing footprint precisely so your maintenance crew can swap out the motor without modifying mechanical bases or coupling arrangements.
Quality and safety are non-negotiable in flameproof environments. Our modern production factory houses one of Europe’s most advanced full-load test fields. Every single custom motor undergoes rigorous routine testing, including routine flame gap verification, dielectric strength tests, temperature rise monitoring, vibration spectrum analysis, and hydrostatic enclosure pressure testing. Customers and independent inspectors (TÜV, Bureau Veritas, DNV) are routinely hosted in our live observation lounges or provided with digital remote video testing logs prior to export dispatch.
Unplanned plant shutdowns cost industrial operators thousands of Euros per hour. We maintain one of Western Europe's largest inventory stocks of large industrial motors—including low voltage and high voltage flameproof motors (YBX3, YBX4, Ex d, Ex p) up to thousands of kilowatts. Our dedicated logistics network guarantees fast express truck shipment directly to Barcelona, Tarragona, Bilbao, Madrid, and port marine terminals across Spain within record timeframe.
Direct technical clarity regarding ATEX certification, installation conditions, custom modifications, and export delivery.
Our specialized senior drive engineers are available to review your technical specs, mechanical dimensional drawings, or factory rating plates. We provide engineered solutions tailored precisely to your operational requirements.