Cat & Komatsu Replacement Radiators Copper Fin Tube
Caterpillar radiator replacements, repairs, and upgrades primarily utilize a copper fin-and-tube design, featuring copper fins paired with flat-oval tubes made of brass or pure copper. The fins employ either a dust-resistant straight-fin or wide-pitch corrugated structure, facilitating external cleaning and preventing clogging caused by the accumulation of coal dust or mineral particles.
- Copper fins offer excellent thermal conductivity and corrosion resistance.
- A robust brazing process ensures a tight bond between the fins and the base tube, preventing deformation under prolonged thermal cycling.
- An advanced fin design utilizing high-density corrugated fins enhances heat dissipation efficiency.
Cat & Komatsu Replacement Radiators Copper Fin Tube Manufacturer
Caterpillar (Cat) heavy construction machinery and mining trucks operate under extremely harsh conditions characterized by high vibration and heavy dust loads; consequently, their cooling systems demand exceptional manufacturing quality and durability for these copper fin-and-tube components.
Core Technical Parameters & Selection Guide
When customizing, manufacturing, or sourcing copper fin tubes for Cat radiators, the following technical specifications generally need to be defined:
| Key Parameter | Industry Standard Specifications |
| Base Tube Material | High-purity seamless copper (TP2) or Copper-Nickel (CuNi 90/10) (for highly corrosive environments) |
| Fin Material | Red Copper (High thermal conductivity, 99.9% Cu) |
| Fin Type | M-Fin (Mechanically tension-wrapped), Plate Fin (Stamped/Stacked), or High-Frequency Welded Fin |
| Common Tube OD | 3/8, 1/2, 5/8, etc. |
| Cross-Section Shape | Round or Flat Oval (Flat oval tubes offer lower aerodynamic resistance) |
| Mating Components | Must match heavy-duty, high-temperature, and oil-resistant fluororubber sealing grommets |
Removable Copper Finned Tube Core
Fin Rolling / Rolling Mill Machine
This process is designed for manufacturing composite fins on the surface of individual flat tubes (commonly found in heavy-duty standalone or detachable cooling tubes).
The equipment utilizes one or more pairs of interlocking, toothed rolling cutters. As the copper strip passes through the gap between the cutters, it is mechanically extruded and folded into a continuous corrugated (serpentine) fin structure.
The wide-pitch corrugated configuration is easily adjustable, making it ideal for producing dust-resistant cooling tubes used in mining applications.
The formed corrugated fins are subsequently fed into a fin-bonding machine, where they are securely attached to both sides of the brass flat tube using high-frequency welding or brazing.


Customizable Flat Finned Tubes
We can customize the material, specification and length according to your requirements.Solve your problems anytime and anywhere. Customize fin tubes and equipment according to your needs. Provide free technical guidance. Welcome to customize with drawings, so that you can purchase without worries.
Strict Quality Control
At Datang Finned Tube, quality is non-negotiable. Every flat copper finned tubes undergoes strict and comprehensive quality inspections—including dimension tracking, bonding tests, and non-destructive testing (NDT)—under our rigorous high-standard QA/QC system to ensure zero-defect delivery. We implement 100% hydrostatic pressure tests, ultrasonic testing, and strict mill test certificates traceability, ensuring full compliance with international ASME/ASTM standards and minimizing long-term maintenance costs for your heat exchanger projects.


Copper Fin Tube for Mining Heavy Trucks and Komatsu Package
To prevent any damage during transit and storage, we utilize premium export-standard packaging materials, which include:
- Seaworthy Wooden Cases / Crates
- Steel Frame Packing / Steel Structure Cradles
- Protective Fin Spacers / Interlayers
- Plastic Tube End Protectors / Pipe Caps
- Customized Project Packaging Solutions
All packaging methods are engineered to ensure total fin integrity and preserve product quality during international shipping and on-site handling.
Copper Flat Fin Tube Quality Checks




Each of our copper flat fin tube is subjected to stringent quality checks.Inspection and Tests Performed:
1.Chemical Composition inspection。
2.Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test).
3.Surface and Dimension Test.
4.No-destructive Test.
5.Hydrostatic Test.
Radiator Replaceable Copper Fin Tube Application

A mining heavy truck radiator is a critical component for ensuring the proper operation of the truck engine. Its primary function is to circulate coolant to reduce the engine’s operating temperature. This radiator is particularly important in harsh working environments like mines.

Premium copper-brass radiators built to survive high-vibration mining and construction sites. Featuring a rugged, anti-clogging flat oval tube design, they resist dust buildup and allow easy high-pressure washdowns. Ensure maximum cooling efficiency and zero unexpected fleet downtime under the harshest operating conditions.

Premium, all-metal copper-brass radiators engineered for heavy-duty excavators. Designed to withstand extreme continuous vibrations and harsh construction dust, our rugged flat oval tube structure prevents clogging and allows easy high-pressure washdowns. Keep your high-tonnage excavators cooling efficiently and eliminate costly on-site downtime.

Premium recoring and rebuilding services for heavy-duty Caterpillar loader radiators. We replace failing cores with rugged, high-density copper fins and brass flat oval tubes designed to withstand severe mining vibrations. Restore your loader’s cooling efficiency, prevent dust clogging, and eliminate expensive fleet downtime.

Ultra-rugged copper fin and brass flat oval tube radiators engineered for heavy-duty Caterpillar and Komatsu mining trucks. Built to withstand extreme vibrations and harsh quarry dust, the anti-clogging core design ensures effortless high-pressure washdowns, delivering maximum cooling efficiency and zero unexpected fleet downtime.
A: Aluminum radiators are lightweight but easily crack under the extreme vibrations of mining sites and corrode quickly in harsh environments. Our all-metal copper-brass radiators offer double the thermal conductivity of aluminum, exceptional mechanical strength against heavy shocks, and a much longer service life in ultra-harsh, dust-heavy conditions.
A: Yes. Our replacement radiators and recore components are manufactured to strict OE-matching specifications. We cross-reference OEM part numbers (for loaders, dozers, and mining trucks) to ensure a 100% precise drop-in fit with zero modifications required during installation.
A: Key indicators include the tightness of the bond between the fins and the tubes (via mechanical expansion or welding), the uniformity of the copper tube wall thickness, and the consistency of the fin pitch. High-quality products should have a fin-to-tube contact rate of ≥95%, and manufacturers should be able to provide pressure test reports and material certificates.
A: Yes, we are a direct manufacturer/premium supplier. We can customize the tube rows (e.g., 3-row, 4-row, or heavy-duty multi-row layouts), fin thickness, and total core dimensions based on your blueprints or sample specifications. Contact our engineering team for bulk wholesale pricing and custom quotes.
Related Product
Tube-M-Fins FAQs
A: Radiator replaceable copper finned tube production line 6.
A: We can provide radiator replaceable copper finned tube M fins samples for free.
A: After you confirm copper finnd tube radiator for cat and komatsu mining rruck sample details, the samples will be ready for delivery in 3-7days,and will be sent to you via express and arrive in 3-5days.
A: Copper finnd tube radiator for cat and komatsu mining rruck can be customized, we can make the new thermoforming or extruding mode based on your drawings and we can sign a confidentiality agreement about your patented product, pls contact us for any further information.
A: Always a pre-production sample,before mass production;always final inspection before shipment.
Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.

















