We specialize in the design and manufacture of diesel engine powered, ATEX-rated hydraulic power units, engineered for exceptional safety, reliability, and performance in hazardous (explosive) environments such as petrochemical plants, offshore platforms, mining, and heavy industry.
What is an ATEX-Rated Diesel Hydraulic Power Unit?
An ATEX-rated hydraulic power unit is specifically built to comply with the European ATEX Directive (2014/34/EU) for use in potentially explosive atmospheres (Zone 1, Zone 2). These units feature explosion-protected diesel engines and systems to prevent ignition of flammable gases or dusts during operation.
Key Technical Features
- Explosion-Proof Diesel Engine
- Engines are equipped with flame arrestors, spark arrestors, air shut-off valves, and exhaust insulation to prevent ignition sources.
- Engine options from leading manufacturers (such as JCB, Deutz, Caterpillar) with ratings tailored to your desired flow and pressure requirements (commonly 22kW–200kW+).
- Robust, Heavy-Duty Construction
- Skid or container-mounted frame with painted or powder-coated heavy-gauge steel for harsh environments.
- All metalwork is grit-blasted, primed, and finished with deep-penetration coatings for corrosion resistance.
- Certified Hydraulic System
- Variable or fixed displacement pumps (piston, gear, vane) sized for up to 300bar pressure and flows from 6L/min up to 400L/min or more, depending on application.
- Hydraulic tanks, filtration (3 micron or finer), and pipework designed to minimize contamination risk and maximize service life.
- Oil-air or oil-water coolers ensure thermal stability during continuous duty.
- ATEX Electrical & Control Systems
- All electronic components—including starters, emergency shutdowns, and instrumentation—are fully ATEX/IECEx certified and housed in flameproof or increased safety enclosures.
- Control and monitoring panel includes:
- Emergency stop, overspeed, low oil pressure, high water/exhaust temp, low hydraulic oil alarms.
- Optional remote or wireless pendant control, custom automation integration, and programmable safety logic.
- Comprehensive Safety Shutdown Systems
- Automatic shutdown triggers for over-temp, low oil pressure, high exhaust temperature, low coolant level, air intake gas detection, and manual emergency stop.
- Designed for rapid isolation and zero ignition risk in event of gas detection or abnormal engine/hydraulic conditions.
- Certified for Compliance
- Full ATEX documentation and third-party DNVGL/ABS/CE certifications are supplied for each unit as required.
- Units can also be designed to meet other global hazardous area standards as needed.
Manufacturing Process Overview
- Engineering & Design
- Hazardous zone and duty requirements are analyzed. Custom sizing, hydraulic, and control system design using advanced CAD/CAE tools.
- Component Sourcing
- Procurement of ATEX-certified engines, hydraulic pumps, valves, filters, and certified materials.
- Precision Fabrication
- Structural fabrication, machining, welding, and coating of frame, skid, and reservoir.
- Integration & Assembly
- Installation of engine, hydraulic components, safety/explosion protection, and control wiring to ATEX zone standards.
- Testing & Quality Control
- Stagewise pre-inspection and full function pressure testing, system run-in, shutdown response drills, and documented compliance verification.
- Final Documentation & Certification
- Delivery includes user manuals, exploded diagrams, maintenance schedules, and full ATEX/CE/certification pack.
Applications
Diesel engine ATEX hydraulic power units are essential for:
- Oil & gas offshore and onshore rigs
- Chemical and paint plants
- Mining and materials handling in explosive dust/gas environments
- Drilling rigs, pipeline work, and hazardous zone mobile equipment.
Why Choose Our ATEX Diesel Hydraulic Power Units?
- Proven, robust design tailored to your hazardous environment
- Custom-engineered for your flow, pressure, size, and safety requirement
- Strict compliance with ATEX, DNV/ABS/CE/IECEx
- Comprehensive after-sales support and rapid response service
Contact our technical team today for engineered diesel ATEX hydraulic power units that deliver assured safety, reliability, and performance in explosive risk environments.