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Self-Circulating Oil Cooler DFLSL-10: 5.5/7.5KW, 1.61/1.84 KW/℃

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SKU: 560630967X
Model: DFLSL-10

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Product Details

Self-Circulating Oil Cooler DFLSL-10

The DFLSL-10 self-circulating oil cooler from DEO Machinery is an independent closed-loop cooling unit designed for hydraulic and lubrication oil systems. It integrates a cooling radiator, circulating oil pump, cooling fan, and filter, ensuring stable oil temperature and extended equipment life. With cooling capacities of 1.61/1.84 KW/℃ and oil pump flows of 100-125/150-200 L/min, it meets diverse industrial demands.

Key Selling Points

  • High Cooling Capacity: Delivers 1.61/1.84 KW/℃ cooling performance, effectively removing heat from hydraulic/lubricating oil to prevent overheating and oil degradation. Source: Cooling capacity parameter
  • Flexible Oil Pump Options: Choose between 100-125 L/min or 150-200 L/min oil pump flow (VG46 oil), with corresponding motor power of 5.5KW or 7.5KW, to match your system requirements. Source: Oil pump flow and power parameters
  • Durable Radiator Material: Standard copper radiator ensures efficient heat transfer; stainless steel optional for corrosive environments. Source: Material info
  • Independent Closed Loop: Separates cooling circuit from main hydraulic system, eliminating pressure fluctuation interference and protecting heat exchanger core from pulse damage. Source: DFLS scenario - function
  • Built-in Safety Protections: Optional temperature bypass valve (45-55°C opening) for cold start, pressure bypass valve for surge protection, and temperature/pressure switches for automated monitoring. Source: DFLS scenario - operation_mode

Technical Specifications

ModelDFLSL-10
Cooling Capacity1.61 / 1.84 KW/℃
Oil Pump Flow (VG46)100-125 L/min / 150-200 L/min
Consumed Power5.5 / 7.5 KW
Radiator MaterialCopper (standard), Stainless Steel (custom)
Oil Inlet TemperatureStandard ≤90°C, Custom ≤130°C
Rated Working Pressure16 bar
Oil Flow Range6–200 L/min (matched with pump)
Fan Diameter250–900 mm
ConnectionsG3/4, G1, G1-1/4, G1-1/2, SAE ports

Models and Options

This DFLSL-10 cooler is available with two pump/motor configurations: low flow (100-125 L/min, 5.5KW) or high flow (150-200 L/min, 7.5KW). Customizable options include radiator material (copper or stainless steel), temperature bypass valve, pressure bypass valve, and alarm switches.

Materials and Structure

The cooler features a copper or stainless steel radiator core, aluminum fins, and a robust steel frame. The circulating pump is housed in a cast iron body with helical gears. The axial fan is driven by a 380V/220V motor. Sealing materials are NBR or FKM compatible with hydraulic oils.

Applications

This self-circulating cooler is suitable for hydraulic systems, lubricating systems, extruding machinery, forging and stamping equipment, shearing machines, gearboxes, large bearings, nuclear power plants, large-scale reduction boxes, and smelting equipment. It has been deployed in industries like construction machinery, wind energy, and marine equipment.

Customization

Custom options include: stainless steel radiator for corrosive media, oil inlet direction (left/right), special voltage motors (e.g., 220V), extended temperature range up to 130°C, and additional filters for heavy contamination environments. Contact our sales team for detailed customization.

Frequently Asked Questions

Q1: What is the maximum oil viscosity this cooler can handle?

A: It is compatible with hydraulic oils up to VG320 (viscosity 320 mm²/s). For higher viscosities, please consult engineering for pressure drop adjustments.

Q2: Can the cooler operate in dusty environments?

A: Yes, but regular cleaning of the radiator fins is recommended. For heavy dust, we can add protective grilles or upgraded filtration.

Q3: What is the noise level of this unit?

A: Typical noise levels are below 75 dB(A) depending on fan speed and pump load. The helical gear pump contributes to lower noise compared to straight gear pumps.

Q4: How does the temperature bypass valve work?

A: When oil temperature is below 45-55°C, the valve routes oil around the radiator to speed up warm-up. Above that threshold, oil flows through the radiator for cooling.

Q5: What certifications does the cooler have?

A: Our factory is ISO9001:2015 certified (cert no. 16426Q00565R001), covering production of coolers and lubricating pumps for mining, marine, and hydraulic machinery.

Q6: What is the typical lead time for a standard DFLSL-10 cooler?

A: Lead time for standard units is typically 15-25 working days. Custom orders may require additional time. Please contact us for exact delivery schedule.

Q7: Can I integrate this cooler with my existing hydraulic system?

A: Yes, the self-circulating design creates an independent loop. You only need to connect the oil inlet and outlet to the system's oil tank or return line.

Q8: What is the warranty period?

A: We offer a standard 12-month warranty from shipment. Extended warranty options are available upon request.

Inquiry Information

For pricing, availability, or technical questions, please contact:

Michael
Email: deolun@cndeo.cn
Tel/WhatsApp: +86 18957417960
WeChat: michael20110902

Address: No. 85, Yanshanhe North Road, Beilun District, Ningbo City, China

DFLSL-10 self-circulating cooler overview - copper radiator and axial fan DFLS series self-circulating cooler - compact unit design