Importance of Oil Cooling in Hydraulic Systems
In every hydraulic system, continuous friction between moving components generates heat during operation. Without proper oil cooling, this heat gradually raises the hydraulic fluid temperature, leading to energy losses as input power is converted into heat instead of useful work. An efficient oil cooling system helps maintain thermal stability, reduces energy wastage, and protects system components from premature wear.
Overheating is the second most common issue in hydraulic equipment, responsible for nearly 20% of all failures. This underlines the importance of installing a reliable hydraulic oil cooling system to maintain optimal operating temperatures and ensure consistent performance.
Energy-Efficient Oil Cooling Solutions
We specialize in offering energy-saving, eco-friendly, and high-performance heat exchangers. Our technical expertise and advisory support help customers find the most effective oil cooling solution for their specific applications, ensuring efficiency, reliability, and durability.
Types of Oil Cooling Systems We Offer
- Air Coolers
- Plate Heat Exchangers
- Pump-Transfer Cooler Filtration Units
- Accessories and Spare Parts for Oil Cooling Systems
Oil Air Coolers – Efficient Fluid Temperature Control
Oil Air Coolers, as the name suggests, are designed to cool hydraulic fluids such as oil or water-glycol using atmospheric air. These coolers primarily consist of a fan, externally powered, and a heat exchange element made of finned tubes.
Hot fluid flows through the cooling element while the fan draws external air across the fins, enabling heat exchange and lowering the fluid temperature efficiently.
Oil cooling systems depend on this process for continuous circulation, effectively transferring heat from fluid to air. This makes Oil Air Coolers an essential component in hydraulic circuits where fluid temperature control is critical for performance and reliability.
To size a cooler correctly, parameters such as heat load, hydraulic oil flow, desired oil temperature, and oil viscosity must be considered. Larger heat loads require proportionally larger cooling capacity.
Oil Air Coolers are compact, reliable, and easy to integrate into mobile equipment, industrial machinery, and heavy-duty systems with minimal layout changes. They are available in multiple fan designs (axial and radial) and power options including AC, DC, and hydraulic motors, making them versatile across industries and ambient conditions.
We provide a wide range of Oil-Air Coolers in various sizes, series, and accessories to suit diverse application requirements.
Key Product Features
- Pressure rating: up to 16 bar
- Oil flow capacity: up to 750 lpm (higher solutions available on request)
- Cooling capacity: up to 200 KW (special versions available for higher capacities)
- Voltage options: 12 V DC, 24 V DC, 230 V AC, 400 V AC (for industrial and mobile use)
- Available with integrated pump for bypass flow cooling
- ATEX-certified models available for explosive environments
Benefits of Oil Air Coolers
- Provides stable and consistent cooling for improved hydraulic oil performance
- Unaffected by fluid flow and duty cycle variations
- Extends the life of both hydraulic systems and hydraulic oil
- Boosts system efficiency and overall productivity
- Simple maintenance and repair process
- Does not require shutting down the entire system during service
Brazed Plate Heat Exchangers for Oil Cooling
A brazed plate heat exchanger is constructed with multiple corrugated plates made from corrosion-resistant materials. These plates are vacuum-brazed with copper or nickel depending on the application, forming alternating channels for hot and cold mediums (typically water). The design enables efficient transfer of heat between fluids, ensuring optimal cooling performance.
Available in a wide range of sizes, capacities, and connections, these exchangers can be configured as single-pass, dual-pass, or multi-pass units, tailored to meet specific project requirements across diverse industrial applications.
Key Product Features
- Handles flow capacity up to 5800 lpm
- Pressure resistance up to 45 bar
- Plates and joints made from high-quality, corrosion-resistant materials
- Available with standard threaded or round flange connections
- Custom interface options available upon request
Advantages of Brazed Plate Heat Exchangers
Enhance the performance of your existing Oil Air Cooler with a wide range of high-quality accessories. These add-ons are designed to improve control, efficiency, and safety of the cooler, thereby boosting the overall reliability of your hydraulic system.
Our accessories are available in multiple sizes and configurations, making them suitable for both new installations and retrofitting into existing systems using mounting kits. This ensures flexibility and cost-effective upgrades for your cooling solutions.
Spares and Accessories for Oil Air Coolers
- Cooling Element Matrix
- Cooler Fan
- Thermostat Kit – Adjustable type
- Thermostat Kit – Fixed type
- Bypass Valve – Pressure controlled
- Bypass Valve – Temperature controlled
- Dust Guard
How These Accessories Improve Performance
Cooling Element Matrix & Fans: Replace or upgrade depending on the cooler series and type code for improved cooling efficiency.
Thermostat Kits: Electrical switches mounted on free ports of the cooling element to operate the fan motor. Adjustable types allow temperature selection, while fixed types work at a pre-set temperature.
Bypass Valves: Allow oil to bypass the cooler matrix if pressure or temperature exceeds safe limits, protecting the cooling element from damage.
Dust Guards: External grills that safeguard the cooler matrix and system components in harsh operating conditions.
With these accessories, you can significantly extend the service life of your oil cooling system while ensuring maximum safety and reliability in hydraulic operations. Contact us to choose the right spares and accessories for your application.
FAQ
Techknow Engineering Enterprise oil cooling systems dissipate heat generated by hydraulic equipment, maintaining safe fluid temperatures, preventing power loss, and protecting machinery from overheating and damage.
- Air Coolers
- Brazed Plate Heat Exchangers
- Pump-Transfer Cooler Filtration Units
- Accessories and spare parts for multiple applications
Hot hydraulic oil flows through a finned-tube cooling element while a fan forces ambient air across it, transferring heat from the oil to the air and efficiently cooling the system.
- Handles pressure up to 16 bar
- Oil flow capacity up to 750 lpm
- Cooling capacity up to 200 kW
- Voltage range from 12 V DC to 400 V AC
- ATEX-rated models for hazardous environments
Our oil coolers keep hydraulic fluid at safe operating temperatures, extend oil and equipment lifespan, improve system efficiency, and enable easy maintenance without shutting down the entire system.
- High efficiency in heat transfer
- Flow capacities up to 5,800 lpm
- Pressure resistance up to 45 bar
- Lightweight, corrosion-resistant construction
- Compact installation design
Yes. We supply cooling element matrices, fans, adjustable and fixed thermostat kits, pressure/temperature-controlled bypass valves, and protective dust guards.
Absolutely. Our team analyzes heat load, oil flow, target temperature, and viscosity to recommend the most suitable cooler and configuration for your equipment.
We provide high-quality Oil Cooling Systems from trusted manufacturers including Hydac, Olaer, Parker, SWEP, and Emigi, ensuring efficient cooling, reliable performance, and long service life for hydraulic systems.