Hydraulic Excavator
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This page explains how Upper Structure (House) is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
The rotating platform of a hydraulic excavator that houses the operator's cab, engine, hydraulic pumps, and other key components.
Technical details and manufacturing context for Upper Structure (House)
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Swing Speed | 8–12 r/min | Higher speed reduces cycle time but increases inertial loads. |
| Swing Torque | 50–200 kN·m | Must match excavator size class for adequate rotation force. |
| Hydraulic Flow Rate | 150–300 L/min | Determines actuator speed and power availability. |
| Engine Power | 100–300 kW | Net power at flywheel; must meet emission standards.ISO 9249 |
| Operating Temperature | -20–50 °C | Outside this range, hydraulic fluid viscosity changes affect performance. |
| IP Rating | IP54–IP65 | Protects electrical components from dust and water ingress.IEC 60529 |
| Material Grade | Q345B–Q460C | Higher grade for increased strength and fatigue resistance.GB/T 1591 |
| Weight | 3000–8000 kg | Affects transport and crane lifting requirements. |
| Footprint (Length × Width) | 2500–4000 × 2000–3000 mm | Must fit within excavator transport envelope. |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
| pressure: | Hydraulic system: 350 bar max, structural: 1.5x design load safety factor |
| other spec: | Rotation speed: 0-12 RPM continuous, 15 RPM peak, Flow rate: 100-400 L/min hydraulic system, Vibration: ISO 2631-1 compliant for operator comfort |
| temperature: | -20°C to +50°C (operational), -40°C to +70°C (storage) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
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The upper structure is the rotating platform that houses the operator's cab, engine, hydraulic pumps, and other key components. It rotates 360 degrees on the swing bearing, allowing the excavator to dig and dump material without moving the tracks.
The upper structure is typically fabricated from high-strength steel and structural steel plate, as listed in the directory. The material grade, such as Q345B to Q460C, affects strength and fatigue resistance and must be verified for the specific model.
Key parameters include swing speed, swing torque, operating pressure, hydraulic flow rate, engine power, operating temperature, IP rating, material grade, weight, and footprint. These values are reference ranges and must be confirmed with the manufacturer for the actual model.
Regular inspection of the swing bearing, hydraulic connections, and structural integrity is essential. Check for leaks, wear, and cracks. Follow the manufacturer's maintenance schedule and verify that all components meet the required standards.
This component is essential for the following industrial systems and equipment:
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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