Heat exchangers / Coolers and Cooling Systems

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