Heat Exchangers
Efficient cooling for high-performance hydraulic systems
Heat exchangers keep oil temperature within optimum limits, preserving efficiency, service life and safety of hydraulic components. Fluid System distributes the complete Emmegi range, a benchmark brand for thermal integration in industrial and mobile hydraulic systems.
The solutions include air-oil, water-oil and brazed-plate heat exchangers, ATEX and marine versions, combined compressor coolers and self-contained cooling units, all designed to guarantee maximum heat dissipation with reduced footprint.
During maintenance or replacement of heat exchangers installed on existing systems, selection often starts from specific application codes. In these cases, it is essential to identify the correct series and configuration in order to guarantee compatibility and operational continuity.
Comparative table of Emmegi Heat Exchangers
| Type | Exchange fluid | Cooling capacity | Max pressure | Materials | Main applications |
|---|---|---|---|---|---|
| Air-Oil | Air / Oil | 0.5-50 kW | 20 bar | Aluminium | Industrial systems - mobile systems |
| Water-Oil | Water / Oil | up to 250 kW | 12 bar static oil / 5 bar static water | Brass / Stainless steel | Hydraulic power units - industrial systems |
| Brazed Plate | Compatible liquids | up to 150 kW | up to 30 bar / 23 bar static max in operation / 30 bar test pressure | AISI 316 stainless steel / copper-brazed / nickel-brazed | Compact circuits - machine tools |
| Self-contained Cooling Units | Air-Oil / Water-Oil with recirculation | 1-60 kW EVO 3 units / up to 250 kW systems | 6 bar oil / 20 bar test | Steel / Aluminium | Systems with high thermal load - mobile systems - industrial systems |
| ATEX | Air / Water / Oil | up to 50 kW | 20 bar | Aluminium / Stainless steel / Ex motors | Ex-proof systems - hazardous environments |
| Marine Use | Seawater / Oil | up to 100 kW | 20 bar | Bronze / Brass / AISI 316 stainless steel | Marine - offshore - port applications |
| Combined for Compressors | Air / Oil | 4-110 kW compressor | 13 bar static / 20 bar test | Aluminium / Steel | Industrial air compressors |
Air-Oil Heat Exchangers
Compact and versatile cooling for industrial and mobile systems.
Emmegi air-oil heat exchangers use an electric or hydraulic motor to circulate air through a finned aluminium core, rapidly dissipating heat from the oil. They are available in single-phase, three-phase and “Drain” versions with integrated drainage, making them ideal for continuous industrial applications.
TECHNICAL FEATURES
Cooling capacity: from 0.5 to 50 kW.
Max pressure: 20 bar.
Single-phase, three-phase or hydraulic motors.
Material: high-efficiency aluminium finned core.
Versions with optional thermostat and bypass valve.
Main applications
- Machine tools.
- Hydraulic power units.
- Presses.
- Mobile machinery.
- Lifting systems.
Air-Oil Heat Exchangers available for prompt delivery
AHE / AHF series
Standard industrial air-oil heat exchangers.
AHP / AHE series (Drain versions)
Air-oil heat exchangers with Drain option for vertical installation and integrated oil drainage. Ideal for compact hydraulic power units and mobile machinery.
HPA / HPV series
With hydraulic motor, for mobile and compact machinery.
Water-Oil Heat Exchangers
Maximum thermal efficiency for industrial systems.
Emmegi water-oil heat exchangers transfer heat from the hydraulic oil to the water, ensuring high heat dissipation capacity within compact dimensions.
They are ideal for systems with a centralised cooling circuit, thanks to their compact design and high thermal performance.
TECHNICAL FEATURES
cooling capacity: up to 250 kW.
Max oil pressure: up to 12 bar static; water: up to 5 bar static.
Brass or AISI 316 stainless-steel body.
Optimised flow path for high exchange efficiency.
Flanged or threaded versions.
Main applications
- Moulding machinery.
- Hydraulic power units.
- Industrial and marine systems.
Water-Oil Heat Exchangers available for prompt delivery
WHE / WHT series
Standard industrial water-oil heat exchangers.
WHP series
Compact solutions for reduced installation space.
WHS series
Stainless steel body for corrosive environments.
Brazed Plate Heat Exchangers
High efficiency in compact dimensions.
Emmegi plate heat exchangers use stainless-steel plates brazed in copper or nickel, ensuring maximum heat transfer in minimum space. They are used with compatible fluids and closed circuits with high energy density.
TECHNICAL FEATURES
Cooling capacity: up to 150 kW.
Max pressure: up to 30 bar, 23 bar static max in operation; 30 bar test pressure.
Temperatures up to 230 °C.
AISI 316 stainless-steel plates; copper or nickel brazing.
Main applications
- Machine tools.
- Refrigeration circuits and oil / dielectric cooling circuits.
Brazed Plate Heat Exchangers available to order
Serie BP / BPS / BPA
Compact brazed plate heat exchangers.
Self-contained Cooling Units
Autonomous air-oil cooling, quiet and high-efficiency.
Emmegi self-contained units are a complete solution for thermal dissipation in hydraulic circuits. Thanks to an integrated volumetric pump and dedicated electric motor, the system independently draws, cools, filters and returns the oil to the tank. Available with sound-insulated metal casing and, on request, with pre-wired electrical panel, they offer rapid installation and minimum maintenance.
TECHNICAL FEATURES
Air cooling with autonomous recirculation.
Integrated screw-type volumetric pump.
Operating pressure: up to 6 bar.
Max temperature: 93 °C.
Cooling capacity: 1-60 kW.
Flow rates: 5-80 l/min.
Optional pre-wired IP55 electrical panel.
Main applications
- Hydraulic systems.
- Gearboxes.
- Machine tools.
- Recycling plants.
- Industrial and mobile vehicles.
Self-contained Cooling Units available to order
SILENT EVO 3 series
Compact, quiet units for industrial systems and machine tools. Range currently being updated with more advanced versions offering greater energy efficiency.
RID series
High-performance recirculation units for gearboxes and industrial circuits.
DCO series
Lightweight mobile units for industrial vehicles and hybrid applications.
ATEX Heat Exchangers
Safety and performance in explosive-risk environments.
The Emmegi ATEX line is designed for systems installed in classified zones, in compliance with Directive 2014/34/EU. It ensures high performance while maintaining the safety and Ex certification levels required in industrial environments.
TECHNICAL FEATURES
Classification: ATEX II 2G / 2D.
Max pressure: 20 bar.
Air-oil or water-oil versions.
Ex-d / Ex-e / Ex-nA motors.
Main applications
- Chemical and pharmaceutical industry.
- Offshore and oil installations.
ATEX Heat Exchangers available to order
HPƐX series (also often searched as HPEX)
ATEX II 2G-certified air-oil and water-oil heat exchangers. Designed for potentially explosive atmospheres (Zone 1 and 2). Compliant with Directive 2014/34/EU and UNI CEI EN ISO 80079-36/37 standards.
Marine-Use Heat Exchangers
Reliability in saline and corrosive environments.
Manufactured from corrosion-resistant materials such as bronze, stainless steel and brass, Emmegi marine heat exchangers provide resistance and durability in aggressive environments while maintaining consistent thermal efficiency.
TECHNICAL FEATURES
Material: bronze / brass / AISI 316 stainless steel.
Max pressure: 20 bar.
Flanged or threaded connections.
Main applications
- Marine systems.
- Offshore machinery.
- Coastal and port installations.
Marine-Use Heat Exchangers available to order
HPAM series
Water-oil heat exchangers for marine and offshore applications. Manufactured in bronze / aluminium with anti-corrosion treatments compliant with UNI EN ISO 12944 (C5) and salt spray resistance according to UNI EN ISO 9227 (values depending on configuration). Resistant to saline environments, offshore platforms and port installations.
Combined Heat Exchangers for Compressors
Simultaneous cooling of air and oil for industrial compressors
The Emmegi CC series stems from the company’s experience in the compressor sector and provides a compact, versatile solution for dissipating the heat of both oil and compressed air within the same module. Thanks to its simplified layout and wide range of sizes, it can be easily adapted to compressors of different powers, ensuring efficiency and long service life.
TECHNICAL FEATURES
Operating pressure: max. 13 bar static.
Test pressure: 20 bar.
Maximum temperature: 120 °C.
IP55 three-phase electric motors, 50 Hz (230/400 V).
Compressor power: from 4 kW to 110 kW.
Main applications
- Industrial air compressors.
- Air production and treatment systems.
- Integrated refrigeration systems.
Combined Heat Exchangers for Compressors available to order
CC series
High-performance air/oil combined heat exchangers for industrial compressors. Standard or customised configurations available.
Typical application codes and recurring configurations
When selecting or replacing Emmegi heat exchangers for hydraulic systems, codes such as MGAS 100-A-R and MG AIR 2024 are frequently searched, often also entered as MGAS100AR, MGAIR2024 or MG-AIR-2024. These codes refer to air-oil solutions used in industrial and mobile systems.
Why choose the Emmegi heat exchangers offered by Fluid System
– Wide range for every type of hydraulic system.
– High thermal efficiency and long operating life.
– Standard, compact, ATEX and marine versions.
– Technical support for sizing and selection.
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FAQ - Heat Exchangers
Air-oil units use a fan to dissipate heat through air, while water-oil units use a water circuit for higher efficiency in reduced spaces.
It depends on the power to be dissipated, the space available and the type of circuit, industrial or mobile. Fluid System provides dedicated technical support.
Yes. The HPƐX versions are ATEX II 2G / 2D certified for explosive-risk environments, while the HPAM versions are designed for marine environments.
Yes. Emmegi self-contained units integrate pump, filter and heat exchanger in one ready-to-use solution.
