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Doosan Generator Radiator

Doosan Generator Radiators Manufacturers

Specially developed for Doosan generator sets, this radiator features high thermal conductivity fins and large surface area cores to ensure rapid heat dissipation. Built to handle heavy-duty continuous operations, it offers long-term corrosion protection and low maintenance, making it suitable for construction, mining, and offshore projects.

 No. Model Installation Dimensions
Diameter*Center Height		 Radiator Dimensions
Height*Width*Thickness		 Water
Capacity
（L）		 Weight
（KG）		 Heat
Dissipation
Area
（M²）
1 DB58- Φ545*428mm 975*756*406mm 19.7 22.6
2 DP086LA φ740*579mm 1191*916*595mm 30.3 112 50.5
3 DP126LB φ840*731mm 1465*1256*665*405mm 48.6 165 87.3
4 DP158LC(D)-1 Φ940*670mm 1537*1410*640*525mm 59.3 208 147.1
5 DP180LA(B)-1 Φ940*670mm 1567*1410*640*525mm 74.2 188 168.9
6 DP222LA(B)-1 Φ950*772mm 1848*1410*655*525mm 77.6 229 207.7
7 DP222LC-1 Φ950*772mm 1848*1410*655*525mm 77.6 229 207.7
8 P086TI Φ686*579mm 1195*916*595mm 31.4 110 61.3
9 P126TI Φ780*731mm 1435*1175*550mm 40.5 112.5 79.5
10 P158LE-1 Φ940*670mm 1537*1410*640*525mm 57.1 185 114.5
Jiangsu Weichuang Radiator Manufacturing Co., Ltd.
About Weichuang

From our beginnings in generator set and radiator manufacturing in 2003, we've now expanded our business to over 30 countries with a workforce of more than 250 employees. As an established R&D and manufacturing enterprise for generator set radiators, OEM Doosan Generator Radiators Manufacturers and Doosan Generator Radiators Suppliers, operates two standardized production bases spanning over 60,000 square meters. With a technical team of 50+ core engineers, we have built a comprehensive industrial system covering R&D, production, and testing, achieving an annual production capacity of 150,000 units/sets. As Doosan Generator Radiators Factory, Professional advanced sheet metal radiator manufacturing equipment to ensure the quality of the products, high efficiency and delivery guarantee.

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Industry Knowledge

Heat-rejection sizing: what actually makes a Doosan set run hot

Most “overheating” cases aren’t solved by simply going to a bigger core—buyers get better results by matching the radiator to the engine’s net heat rejection at the real duty point (prime vs standby), plus fan capability and enclosure losses. In practice, the hidden multipliers are intake restriction, louver pressure loss, and recirculation in compact canopies.

If you’re comparing options for Doosan generator radiators, ask for the thermal basis (ambient, altitude, coolant setpoint, fan curve). I always prefer quoting against your worst-site condition so you don’t “buy twice” after commissioning.

  • Prime power loads with frequent step changes need extra margin because transient heat storage in the block can overshoot before airflow stabilizes.
  • Silent canopies often require attention to airflow path design as much as core size (short-circuiting air is a common culprit).
  • When the fan is the limiting factor, “more rows” can actually reduce performance by increasing air-side resistance.

Ambient & altitude derating: avoiding the 45°C surprise

Air density is the unglamorous reason a radiator that behaves at 25°C struggles at 40–45°C. Higher ambient reduces the temperature difference that drives heat transfer, and altitude reduces mass airflow for the same fan speed. The practical takeaway is to specify the radiator for the site’s peak conditions, not the “catalog default.”

Quick site checks I use before locking a core

  • Peak ambient (not average) and whether the set sits in direct sun near hot walls.
  • Altitude and any intake ducting (ducts add loss fast, especially with tight bends).
  • Room ventilation rate if installed indoors—exhaust heat recirculation can mimic an undersized radiator.

If you want the safer choice for harsh sites, I usually recommend selecting Doosan generator radiator configurations with verified airflow/pressure capability rather than only chasing surface area.

Air-side design: fin pitch vs fouling, noise, and real maintenance costs

Air-side performance is usually where budget radiators lose value. High fin density can boost initial heat transfer but clogs faster in dusty rental fleets, mining sites, and agricultural environments. Once fouled, the effective thermal area collapses and the fan works harder (higher power draw and noise).

Environment What to optimize Practical buyer note
Dusty / lint-heavy Fouling tolerance Prefer easier-to-clean fin geometry; plan for blow-out access
Urban / standby Noise + efficiency Lower restriction helps keep fan speed (and dB) down
Coastal / offshore Corrosion resistance Coatings and material choices matter as much as core size
How I match air-side priorities to operating environments for generator radiators.

Coolant-side pressure drop: the silent performance killer

A radiator can look “bigger” and still underperform if coolant-side restriction is too high for the water pump’s available head. Excess pressure drop reduces flow, elevates metal temperatures, and can accelerate localized boiling—especially during load acceptance.

Buyer checks that prevent flow problems

  • Confirm hose diameter, routing length, and any added components (jacket-water heaters, extra valves, remote headers).
  • Request the radiator’s coolant-side ΔP data at rated flow; “fits physically” is not a hydraulic spec.
  • Make sure the pressure cap and expansion volume align with your system to reduce cavitation risk.

When we quote replacements, I like to validate both thermal and hydraulic margins—small details here are what separate a smooth commissioning from recurring alarms.

Corrosion protection: coastal and mixed-metal realities

Salt-laden air attacks fins first, while coolant chemistry attacks tube walls and joints. If your installation mixes metals (aluminum core, steel frame, copper/brass components elsewhere), galvanic coupling can accelerate failures unless isolation and coolant control are handled correctly.

  • Use the correct coolant type and change interval; depleted inhibitors are a common root cause behind “mystery leaks.”
  • In coastal projects, prioritize proven external protection (coatings/process control) and rinse access for periodic wash-down.
  • Watch for stray electrical currents—poor grounding can create rapid pitting that looks like manufacturing defect but isn’t.

Replacement-fit pitfalls: why “same model” doesn’t always mean interchangeable

Brand- and model-labeled radiators can differ in shroud depth, fan-to-core clearance, and mounting geometry. Even small deviations can cause recirculation, blade tip losses, or vibration-induced fatigue cracking over time.

What I ask for to lock a no-drama replacement

  • Photos of the current installation (front/back), plus mounting hole pattern and nozzle orientation.
  • Fan diameter, shroud type, and measured fan-to-core spacing (clearance consistency matters for airflow).
  • Whether you need integrated charge-air cooling or oil cooling in the same package.

If you’re sourcing Doosan generator radiators for fleet standardization, these fit details are usually the difference between one SKU and five “almost the same” SKUs.