EP-4L-20/8 Reciprocating Air Compressor

High-Volume, Reliable Output

With a free-air delivery of 20 m³/min, the EP-4L-20/8 industrial reciprocating compressor sustains full rated flow continuously, making it ideal for large-scale pneumatic systems, high-throughput production lines, and centralised compressed-air networks where consistent pressure is non-negotiable.

Two-Stage Efficiency

The two-stage intercooled design delivers measurably better energy efficiency per unit of compressed air produced compared to single-stage piston machines at the same pressure. Lower discharge temperatures also reduce downstream moisture content and extend the service life of compressed-air accessories such as dryers and filters.

Simple, Field-Serviceable Design

All reciprocating air compressor parts — valves, piston rings, gaskets, connecting-rod bearings — are standardised and readily available. Maintenance teams across France, Europe, and global markets can overhaul the machine in-house, avoiding costly specialist call-out fees and minimising mean time to repair.

Robust Industrial-Grade Construction

Cast-iron crankcase, grey-iron cylinder barrels, forged-steel crankshaft, and precision-machined connecting rods give this recip compressor the structural integrity needed to operate 24/7 in harsh plant environments. The unit's 2.50-tonne mass contributes to inherent vibration damping without the need for elaborate isolation systems.

ISO 9001 Certified Manufacturing

Manufactured under a quality management system continuously certified to ISO 9001 since 2001, this compressor undergoes rigorous factory acceptance testing before dispatch. Buyers in the EU and globally receive documentation suitable for local permitting, CE marking verification, and insurance requirements.

◆ Petrochemical & Refinery Plants

Large-scale oil refineries and petrochemical complexes rely on industrial reciprocating compressors to supply instrument air, process gas make-up, and pneumatic control systems. The EP-4L-20/8's robust cast-iron construction and oil-lubricated design suit continuous-service environments where process uptime is critical. Compliance with ATEX Directive 2014/34/EU is achievable through appropriate motor and enclosure selection for hazardous-zone installations in France and the EU.

◆ PET Bottle Blow Moulding (ISBM Lines)

One of the most demanding applications for any industrial piston compressor is PET stretch-blow moulding. High-pressure air at 0.7–1.0 MPa is used to expand pre-heated parisons into finished bottles at high cycle rates. The EP-4L-20/8 supplies reliable pre-blow air to ISBM machine lines, ensuring consistent cavity filling and minimal bottle defects. Its stable output pressure is particularly important where bottle-wall thickness tolerances are tight and any pressure fluctuation causes rejects.

◆ Automotive & Metal Fabrication

Automotive assembly plants, stamping facilities, and metalworking shops use high-volume compressed air for pneumatic tools, robotic actuators, paint-spray booths, and clamping fixtures. The 20 m³/min capacity of this industrial reciprocating compressor comfortably serves multi-station assembly lines without pressure drop. Where air quality is important for painting operations, downstream filtration and drying equipment can be integrated into the station design.

◆ Food & Pharmaceutical Processing

Although this is an oil-lubricated piston compressor, food and pharma facilities that require oil-free air in contact zones can deploy the EP-4L-20/8 as the primary compression unit feeding a downstream point-of-use oil-free scroll compressor or membrane dryer system. The high-volume primary compression stage offloads the smaller secondary equipment, reducing overall energy consumption across the compressed-air station.

◆ Mining & Quarrying

Pneumatic drilling, rock-breaking, and ore-handling equipment in surface and underground mining operations demand sustained high-pressure airflow. The EP-4L-20/8 reciprocating gas compressor design is well-suited to these abrasive, dusty environments where simpler mechanics and easy field access for spare parts reduce the operational cost of compressed-air supply per shift.

◆ Oxygen / Nitrogen Air Separation Plants

Deep-cryogenic air-separation units and VPSA oxygen-generation systems require reliable instrument and process air supply. The proven reciprocating compressor piston design is compatible with the precise pressure-control requirements of molecular-sieve and membrane separation processes, and its low oil-carryover levels — when maintained correctly — protect downstream adsorber beds from contamination.

ISBM Machine (One-Step Injection Stretch Blow Moulding)

For PET bottle production facilities, the EP-4L-20/8 is the natural air supply partner for one-step ISBM lines. High-pressure air at a stable 0.8 MPa is precisely what blow-moulding cavities require during the stretch-blow cycle. Combining this industrial air compressor with an ISBM machine from our portfolio gives packaging manufacturers a fully integrated, single-source compressed-air and forming solution, backed by unified technical support.

Three Phase Asynchronous Motor

The EP-4L-20/8 is driven by a three-phase asynchronous motor rated at 132 kW. Our full series of IE3-compliant induction motors covers the entire reciprocating compressor product range, ensuring electrical compatibility, spare-parts continuity, and optimised energy performance across the whole compressed-air station. Sourcing the drive motor together with the compressor unit removes the risk of voltage or flange mismatch, and simplifies warranty management for the complete drive train.