IKY34A-4400D240201Z Excavator Hydraulic Motor

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IKY34A-4400D240201Z Excavator Hydraulic Motor: Technical Parameters

This hydraulic motor is designed specifically for construction machinery, featuring robust performance for excavator drive systems. Below is a detailed breakdown of itstechnical parameters, application scenarios, and selection guidelines.

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I. Core Parameter Analysis

1. Model Identification

• IKY34A: Indicates the motor series, typically linked to displacement and structural design (e.g., internal five-star configuration).

• 4400D240201Z: pressure rating (240 bar), design code (201), and version identifier (Z).

（Note: Specific parameters require reference to the manufacturer’s technical manual, as some models use proprietary coding rules.）

2. Performance Specifications

• Nominal Displacement: Based on industry standards, similar models range from4000–5000 mL/r, suitable for medium-to-large excavators.

• Rated Pressure: Typically250–320 bar, with peak pressure up to350 barfor high-load operations.

• Speed Range:

• Maximum Speed: 800–1200 r/min (variable displacement adjustable).

• Minimum Stable Speed: ≤15 r/min (to prevent crawling).

• Output Torque:

• Rated Torque: Approximately8000–12000 N·m(full displacement).

• Peak Torque: Up to 1.5× rated torque (short-term overload capacity).

3. Structural Features

• Internal Five-Star Design: Optimizes friction pair layout, reducing leakage and achievingvolumetric efficiency >95%.

• Dual-Speed Switching: Supports high-speed (travel) and low-speed (climbing) modes for terrain adaptability.

• Integrated Brake: Optional parking brake with1.5–4.9 MPaactivation pressure for slope safety.

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II. Typical Application Scenarios

1. Excavator Travel System

• Drives tracks for forward/reverse/steering, matching30–50-ton excavators.

• Example: A 50-ton excavator using a similar motor achieves5.5 km/h (high gear)and3.5 km/h (low gear)with stepless speed control.

2. Heavy-Duty Rotary Mechanisms

• Replaces traditional gearboxes for360° continuous rotation, ideal for muck loaders and rotary drilling rigs.

3. Extreme Operating Conditions

• Cold Start: Hydraulic oil viscosity range5–1600 mm²/s, adaptable to-20°C to 104°C.

• Shock Load Handling: Dual-speed switching absorbs transient overloads, extending bearing life.

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