Medium Excavator
Cooling Systems
Multi-circuit modular cooling packs for mainstream excavators. Engineered for full-feature thermal management with OEM-grade quality and validation.
Full Multi-Circuit Systems
Medium excavators represent the core of XinSheng's construction machinery business. These platforms typically require integrated cooling modules combining engine, charge air, hydraulic, and often swing motor cooling in optimized packages.
Engine Coolant
Primary engine heat rejection. 60-120 kW typical.
Charge Air Cooling
Turbocharger outlet cooling. Pressure to 4.5 bar.
Hydraulic Oil
Main pump, cylinders, and attachment circuits.
Swing Motor
Upper structure rotation heat rejection.
3-in-1 Modular Integration
- Radiator + CAC + Oil Cooler in single frame
- Staged core arrangement for efficiency
- Reinforced mounting for track vibration
- Wide fin spacing for dust serviceability
Medium Excavator Constraints
Multi-Circuit Integration
Medium excavators typically require 3-in-1 or 4-in-1 modular cooling packs for packaging efficiency.
Track Vibration
Steel track systems create severe vibration requiring fatigue-rated mounting and header designs.
High Dust Loading
Earthmoving operations generate significant airborne dust. Wide fin spacing essential for serviceability.
Swing Motor Heat
Upper structure slewing generates substantial hydraulic heat requiring dedicated cooling capacity.
Stage V Compliance
Emissions regulations require optimized charge air cooling and thermal management.
Global OEM Standards
Must meet stringent quality and validation requirements of major OEMs.
Tonnage Classes
| Class | Characteristics | Typical Circuits | Heat Rejection |
|---|---|---|---|
| 16–22T | General construction, full modular cooling | CoolantCACHydraulic | 80–110 kW |
| 23–28T | Mainstream excavation, 3-in-1 modules common | CoolantCACHydraulicSwing | 100–130 kW |
| 30–35T | Heavy excavation, enhanced cooling capacity | CoolantCACHydraulicSwingLube | 120–160 kW |
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