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    • Home
    • About Us
    • Powder Coating
      • Professional Sandblasting
      • What is Powder Coating?
    • Exhaust
    • Radiator
      • Radiator Services
      • Industrial Radiators
      • Oil Coolers
      • Aftercoolers
      • Marine Heat Exchangers
    • Gallery
    • Contact
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  • Home
  • About Us
  • Powder Coating
    • Professional Sandblasting
    • What is Powder Coating?
  • Exhaust
  • Radiator
    • Radiator Services
    • Industrial Radiators
    • Oil Coolers
    • Aftercoolers
    • Marine Heat Exchangers
  • Gallery
  • Contact
  • Job Opportunity

Cleaning & Maintenance of Marine Heat exchangers

1. Deep Cleaning & Flushing

3. Repairs, Recores & Rebuilds

1. Deep Cleaning & Flushing

 Industrial-grade chemical cleaning and pressurized flushing remove internal scale, oil residue, and debris. External fin straightening and wash restore airflow. 

2. Testing & Diagnostics

3. Repairs, Recores & Rebuilds

1. Deep Cleaning & Flushing

 Comprehensive pressure testing isolates leaks and weak points. Flow checks and visual inspection ensure we find the root cause before repair. 

3. Repairs, Recores & Rebuilds

3. Repairs, Recores & Rebuilds

3. Repairs, Recores & Rebuilds

 Tank repairs, seam soldering, tube/fin restoration, and full recore options in copper-brass or aluminum. Built to OEM spec or better. 

4. Heat Exchanger Service

3. Repairs, Recores & Rebuilds

 Cleaning, testing, and repair for oil coolers, charge-air coolers, aftercoolers, and plate & shell-and-tube exchangers. 

5. Preventive Maintenance

 Planned service intervals to extend equipment life and reduce downtime—ideal for fleets and critical-duty assets. 

6. Quality Verification

 Every unit leaves with a final pressure test, QC checklist, and recommendations to keep cooling performance at its peak. 

Box Coolers

🔧 What Are Box Coolers?

 Box coolers are submerged heat exchangers mounted directly in a ship’s sea chest. Cooling fluid circulates through the cooler’s tubes, while seawater on the outside absorbs the heat. They’re widely used in:

  • Tugboats
  • Offshore rigs
  • Cargo ships
  • Dredgers
  • Fishing vessels


This design makes them efficient, space-saving, and dependable in harsh marine environments.

✅ Why Choose Marco Radiator?

  • Experienced in marine and offshore cooling systems
  • Skilled in cleaning, testing, repairing, and replacing box coolers of all sizes
  • Fast turnaround to minimize vessel downtime
  • Dedicated to quality workmanship and long-lasting performance

Plate Pack Regasketing & Replacement Services

Complete Solutions for Plate Heat Exchangers

Complete Solutions for Plate Heat Exchangers

Complete Solutions for Plate Heat Exchangers

 At Marco Radiator, we provide end-to-end service for plate heat exchangers, including regasketing, cleaning, and supplying new replacement parts. Whether you run Alfa Laval or other major brands, our team ensures your system operates at peak efficiency.

🔧 Regasketing Services

Complete Solutions for Plate Heat Exchangers

Complete Solutions for Plate Heat Exchangers

 Over time, gaskets lose elasticity, leading to leaks and reduced performance. We provide:

  • Full regasketing of plate packs with OEM-quality or equivalent gaskets
  • Cleaning and inspection of plates during the regasketing process
  • Professional reassembly and alignment to restore original efficiency

🆕 New Plate Pack Materials & Parts

Complete Solutions for Plate Heat Exchangers

 We supply a wide range of replacement materials to keep your heat exchanger running reliably:

  • New gaskets
  • New plates
  • O-rings and seals
  • Full replacement plate packs
     

With our supplier network and buying power, we provide fast sourcing and competitive pricing for all parts.

On-Site Service

 To minimize downtime, our technicians can go on-site to:

  • Clean and flush your plate packs
  • Remove, regasket, and reinstall plates
  • Supply and replace worn parts directly at your facility
     

This saves time, reduces shipping, and gets your system back in service quickly.

 📞 Contact Marco Radiator today for plate pack regasketing, cleaning, or replacement parts. From new gaskets to complete plate packs, we have the expertise and materials to keep your heat exchangers operating at their best. 

Keel Coolers, Dura COolers & fernstrum coolers

⚓ Keel Coolers

 Keel coolers are mounted externally to the hull of a vessel, using seawater to naturally cool the engine’s fluid. Over time, they can suffer from barnacle growth, corrosion, and blockages.


Our Keel Cooler Services:

  • Cleaning & Barnacle Removal — Mechanical, chemical, and acid treatments to restore flow
  • Testing — Pressure and leak testing to identify weak spots before failure
  • Repairs — Tube and header repairs, welding, and replacement gaskets
  • New Keel Coolers — OEM-quality replacements supplied at competitive pricing

⚙️ Dura Coolers

 Dura Coolers are air-to-oil or air-to-fluid coolers designed for rugged use in marine, industrial, and off-road environments. They handle high-heat hydraulic, transmission, and engine systems.


Our Dura Cooler Services:

  • Cleaning — Removal of oil, sludge, dust, and debris from cores and fins
  • Testing — Pressure and flow testing to ensure cooling efficiency
  • Repairs — Core repairs, re-fins, welding, and resealing
  • New Dura Coolers — Heavy-duty replacements built to OEM specifications

Frequently Asked Questions

Please reach us at marcoofmc@gmail.com if you cannot find an answer to your question.

 A: Yes—we supply OEM-quality gaskets, tubes, headers, and full replacement coolers for Keel, Dura, and Fernstrum systems. 


 A: Yes. We specialize in cleaning, testing, repairing, and replacing Fernstrum coolers, one of the most trusted names in the marine industry. 


 A: Typically once a year, or more frequently in warm waters prone to heavy marine growth. 


Marco Muffler Radiator & Powder Coating

7601 Hwy 182 East Morgan City, LA 70380 US

(985) 384-4621

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