Oil / Air Cooler

The HYDAC Oil/Air Cooler Units AC-LN Low Noise Series provide efficient, quiet cooling for oil or water-glycol systems, with options for return or bypass flow installation. Offering modular design, high heat dissipation, and optional pump and filter configurations, they suit a wide range of applications.

Key Features:

• Cooling capacity up to 6.5 kW/°C (AC-LN 1–14)
• Cooling capacity up to 2.75 kW/°C with pump (ACA-LN 1–11)
• Cooling capacity up to 2.75 kW/°C with pump & filter (ACAF-LN 1–11)

The HYDAC Oil/Air Cooler Units OK-ELC with AC Motor are compact, high-performance solutions designed for demanding hydraulic applications where space is limited. With a cooling range of 1–28 kW and support for viscosities up to 2,000 mm²/s, these coolers ensure reliable, efficient heat dissipation in small to medium systems.

Key Features:

• Cooling range 1 - 28 kW
• Compact, efficient, high performance
• Viscosity 2,000 mm²/s (standard)

The HYDAC Oil/Air Cooler Units AC-LN MI Low Noise Series offer energy-efficient, intelligent cooling with variable fan speed controlled by an integrated frequency inverter. Designed for applications with high cooling demands, they ensure consistent fluid temperature, reduced power consumption, and quieter operation.

Key Features:

• Variable-speed axial fan with integrated frequency inverter
• Plug-and-play design with built-in temperature probe (PT1000)
• Lower operating costs and noise levels

The HYDAC Oil/Air Cooler Units OSCA and OSCAF Low Noise Series deliver compact, quiet, and efficient cooling for small to medium hydraulic systems. Featuring integrated pumping, cooling, and (in OSCAF) filtration functions, they offer up to 0.375 kW/°C cooling capacity with minimal maintenance and reduced installation complexity.

Key Features:

• OSCA- 0 - 3 with pump Cooling capacity up to 0.375 kW/°C
• OSCAF- 0 - 3 with pump & filter Cooling capacity up to 0.375 kW/°C

The HYDAC Oil/Air Cooler Units AC-LN / AC-LNH ATEX Series are specially designed for safe operation in potentially explosive environments, featuring ATEX-certified motors and anti-static components. Available with AC or hydraulic motors, these coolers ensure reliable, efficient cooling while meeting stringent safety standards.

Key Features:

• Suitable for explosive areas with ATEX-certified motors (gas and dust protection)
• Available in 50 Hz and 60 Hz versions
• Stainless steel screws with earthing washers and earthed components

The HYDAC Oil/Air Cooler Units Standard Series OK-EL and OKA-EL / OKAF-EL provide reliable cooling for industrial hydraulic systems, with modular designs and flexible options for various applications. The OKA-EL features an integrated pump for bypass flow cooling, while the OKAF-EL adds high-quality filtration for enhanced system protection.

Key Features:

• Pressure resistance up to 16 bar
• Cooling capacity up to 200 kW (higher capacities available as special versions)
• Modular construction for flexible adaptation

The HYDAC Oil/Air Cooler Units Motor Inverter Series OK-EL MI ATEX is designed for safe use in potentially explosive environments (Zone 1/21), offering continuous fan speed control based on oil temperature. This ensures precise cooling with constant operating temperature, reduced noise, and lower energy consumption.

Key Features:

• ATEX-certified for hazardous areas (2G/2D)
• Suitable for 50 Hz and 60 Hz operation
• Continuously variable fan speed controlled by oil temperature

The HYDAC Oil/Air Cooler Units Low-Noise SC and SCAF Series efficiently dissipate heat in small to medium hydraulic systems using radial fans. Versions with built-in pumps (SCA) and filters (SCAF) offer effective bypass flow cooling and oil filtration, maintaining stable oil temperatures regardless of hydraulic cycle times.

Key Features: 

• Cooling capacity up to 20 kW
• Noise level < 70 dB(A) at 1 m (L version)
• Compact, efficient, and high-performance design

The HYDAC Oil/Air Cooler Units Mobile Series OK-ELD with DC Motor is designed for mobile hydraulic systems requiring high performance, compact size, and easy installation. Suitable for equipment like cranes, concrete pumps, and agricultural machines, it offers robust cooling with flexible voltage and speed control options.

Key Features: 

• Pressure resistance up to 16 bar
• Cooling capacity up to 34 kW
• DC motors available in 12 V or 24 V

The HYDAC Oil/Air Cooler Units Standard Series Type OK-P features five sizes and twelve models designed for hydraulic cooling with axial fans. With a dynamic pressure rating of 16 bar and availability in both 50 Hz and 60 Hz, these coolers are ideal for industrial power units, lubrication systems, and hydraulic presses.

Key Features:

• 5 Sizes, 12 models
• 16 Bar Dynamic Pressure Rating
• Both 50 Hz and 60Hz models are available

The HYDAC Oil/Air Cooler Units Mobile Application with Hydraulic Motor OK-ELH and AC-LNH series are designed for mobile systems requiring high performance and compact installation. Equipped with hydraulic motors, they deliver efficient cooling using existing hydraulic power, ideal for cranes, concrete mixers, pump drives, and gearbox cooling.

Key Features:

• Cooling capacity up to 140 kW
• Hydraulic motors ranging from 6.3 to 22 cm³/rev
• Optional continuously variable speed control