Sumitomo SH200 SH210 SH350 Excavator Radiator Kato HD700 Heavy Duty 3-Row

Product Specification

Product Overview

This heavy-duty 3-row aluminum radiator serves Sumitomo SH200, SH210, SH350, and Kato HD700 excavators. The unit is engineered for sustained operation in quarry, mining support, and heavy construction environments where standard cooling configurations are insufficient for the heat loads generated during continuous high-power operation.

Cause

Sumitomo and Kato excavators deployed in quarry and aggregate production facilities face a combination of extreme operating conditions: continuous engine operation at 80-90 percent load factor during rock loading cycles, exposure to fine limestone or granite dust that rapidly blocks cooling fins, and ambient temperatures inside quarry environments that can exceed outside air temperature by 5-10°C due to heat radiation from exposed rock faces. Under these combined stressors, a standard 2-row radiator cannot maintain coolant temperature below the 95°C threshold where engine performance begins to degrade.

Solution

The 3-row brazed aluminum core increases the total heat exchange surface area by approximately 30 percent compared to the original 2-row configuration, providing adequate cooling margin for sustained high-load operation. The controlled-atmosphere brazing process ensures joint integrity under the elevated vibration loads associated with hydraulic breaker and crusher attachments. All mounting points and pipe connections match the original Sumitomo and Kato specifications for each supported model variant.

Specifications

Compatible Model: Sumitomo SH200 / SH210 / SH350 / Kato HD700
Core Material: Brazed Aluminum (6000 series)
Core Configuration: 3-Row
Core Dimensions: 750 mm (W) x 540 mm (H) x 28 mm (T)
Inlet Pipe OD: 38 mm
Outlet Pipe OD: 42 mm
Fin Density: 16 FPI
Tube Wall Thickness: 0.4 mm
Operating Pressure: 0.9-1.1 bar

Application

Designed for Sumitomo SH200, SH210, SH350, and Kato HD700 excavators in quarry operations, aggregate production, mining support, and heavy rock excavation. The 3-row core supports continuous operation in ambient temperatures up to 45°C and is suitable for machines equipped with hydraulic breakers, crushers, or rippers.

How It Works

The 3-row core provides three parallel coolant flow paths through the radiator depth. Hot coolant from the Sumitomo or Kato diesel engine enters the inlet tank, distributes across all three tube rows, and releases heat to ambient air through the brazed aluminum fin stack. The cooling fan forces air through the fins at a face velocity of 3-5 meters per second. The 16 FPI fin density provides a balance between heat transfer efficiency and resistance to blockage from quarry dust particles.

How To Choose

Verify your excavator brand and model, as Sumitomo and Kato radiators have different mounting patterns despite similar dimensions. Confirm the OEM part number on your existing unit and measure core width, height, and thickness. If your machine operates in quarry or mining environments, the 3-row configuration is recommended over the original 2-row for improved thermal margin.

FAQ

Q: Is one radiator compatible with both Sumitomo and Kato models?
A: No. Sumitomo and Kato use different mounting bracket patterns. Please specify your brand when ordering.

Q: What is the expected service life in quarry conditions?
A: With regular fin cleaning every 100-150 hours and proper coolant maintenance, expect 4,000-6,000 operating hours.

Q: Can I upgrade from 2-row to 3-row without changing the fan?
A: In most cases yes, but verify fan shroud clearance for the 28 mm core thickness before ordering.