We specialize in the design and manufacture of electric 3 phase AC ATEX-rated hydraulic power units, meticulously engineered for safe, efficient, and reliable operation in hazardous environments where explosive gases or dust are present.
What is an ATEX-Rated Hydraulic Power Unit?
An ATEX-rated hydraulic power unit meets strict European directives (ATEX 2014/34/EU) for operation in potentially explosive atmospheres, such as chemical plants, oil & gas installations, and offshore platforms. These units utilize explosion-proof motors, electrical controls, and construction materials that eliminate ignition risks, ensuring maximum safety and regulatory compliance.
Key Features of Electric 3 Phase AC ATEX Hydraulic Power Units
- Explosion-Proof Electric Motor
- Heavy-duty, 3 phase AC motors (typically 380-480V, 50/60Hz) with ATEX flameproof enclosures (e.g., Ex d IIB T4 or T5).
- Motors available in a wide output range (e.g., 2.2kW to 50+kW) for high power applications.
- Robust Construction
- All wiring, starters (such as star-delta or direct-on-line), and junction boxes are ATEX certified and IP55+/NEMA 4X rated for weather and dust resistance.
- Enclosures, frames, and couplings designed for severe environments, often including stainless steel options and anti-corrosive coatings.
- Advanced Hydraulic Components
- High-efficiency axial piston or gear pumps, sized for optimal flow (often 7–247L/min) and pressure (up to 300–320bar).
- Pressure, return, and drain line filtration (to 3 microns) for oil cleanliness and system longevity.
- Integrated Safety & Control
- Control panels with basic-to-advanced functionality, all in flameproof housings.
- Low-level oil and high-temperature trip switches for automatic shutdown and fault protection.
- All skid wiring, earthing, and bonding completed to meet ATEX standards.
- Thermal Management
- Integrated hydraulic oil coolers (e.g., seawater heat exchangers, air-blast) to maintain operating temperature in continuous-duty situations.
- Comprehensive Certification
- Supplied with full ATEX documentation, as well as DNV, ABS, CE, or other certifications as project requirements demand.
Typical Manufacturing Process
- Design & Engineering
- ATEX-certified design process with CAD modeling, electrical circuit planning, and zone analysis.
- Custom tank sizing, flow, pressure, and interface requirements determined with the client.
- Material Selection
- ATEX-rated motors, switches, connectors, and armored cabling sourced from accredited suppliers.
- Heavy-gauge steel or stainless for reservoir and frame construction.
- Precision Fabrication
- CNC laser cutting, welding, and skilled assembly to ensure robust fit and finish.
- Components such as sacrificial weld-plates or lift points included per handling and marine standards.
- Component Integration
- Pumps, filters, cooler, reservoir, valving, gauges, and safety devices installed and plumbed.
- Comprehensive internal and external wiring fully compliant with ATEX and electrical codes.
- Rigorous Testing
- Thorough hydraulic, functional, and electrical tests—including pressure, filtration, leak, and automation cycles.
- Third-party or customer-witnessed tests as specified for hazardous-site equipment.
- Documentation & Certification
- Delivery of complete manuals, test docs, and ATEX compliance package for traceability.
Applications
ATEX-rated, electric 3 phase hydraulic power units are deployed across:
- Oil & gas rigs (offshore and onshore)
- Chemical and pharmaceutical processing plants
- Mining and bulk solids handling equipment
- Paint and solvent handling facilities
- Industrial automation in explosion-prone zones.
Why Choose Our ATEX Hydraulic Power Units?
- Proven track record in hazardous industrial environments.
- Custom engineering to exact specifications.
- Full compliance with ATEX, CE, and additional international standards.
- Lifetime technical support and rapid service response.
Contact our manufacturing experts today for tailored solutions and the highest safety assurance in explosive risk environments. We deliver precision-engineered ATEX-rated hydraulic power units that set the standard for safety, performance, and reliability.

