Sany SY305/SY335 Kawasaki KMX15RB Multi-Way Valve

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Product details

1. Product Overview

Sany SY305/SY335 Excavator with Kawasaki KMX15RB Multi-Way Valve

The Sany Heavy Industry SY305 and SY335 models are mid-sized hydraulic excavators designed for earthmoving, mining operations, and construction projects. A critical component of their hydraulic system is theKMX15RB Multi-Way Valve manufactured by Kawasaki Precision Machinery, which precisely controls the flow, pressure, and direction of hydraulic oil to enable compound movements (e.g., boom lifting, arm extension, bucket rotation).

2. Core Functions of the KMX15RB Multi-Way Valve

• Multi-Circuit Hydraulic Control: Integrates multiple directional spools to simultaneously control multiple actuators (e.g., hydraulic cylinders, motors).

• Pressure Compensation: Ensures stable operation of concurrent actions via load-sensing technology, minimizing interference.

• Flow Regulation: Supports manual or electro-hydraulic proportional control for seamless speed adjustment.

• Safety Protection: Built-in relief valves prevent system overload, enhancing equipment safety.

3. Technical Specifications

【表格】

Parameter KMX15RB Specifications

Working Medium Mineral hydraulic oil (ISO VG46)

Rated Pressure 35 MPa (350 bar)

Max Flow Rate 250 L/min (per spool)

Number of Spools 6–8 sections (customizable)

Port Type SAE/DIN standard threaded connections

Control Method Manual lever / Hydraulic pilot / Electro-hydraulic proportional control

Weight Approx. 85–120 kg (depending on configuration)

4. Applications

• SY305/SY335 Excavators:

• Simultaneous control of boom, arm, and bucket movements.

• Synchronized drive of swing and travel motors.

• Hydraulic switching for attachments (e.g., breakers, grapples).

• Other Compatible Equipment:

• Medium-sized hydraulic cranes, rollers, and drilling rigs requiring multi-circuit hydraulic control.

5. Key Advantages

• High Reliability: Precision-machined valve bodies from high-strength alloy steel resist wear and impact.

• Energy Efficiency: Load-sensing technology reduces energy loss, improving fuel economy.

• Modular Design: Individual spools can be replaced, lowering maintenance costs.

• Environmental Adaptability: Seals withstand -40°C to +120°C temperatures; IP65 dust/water resistance.

6. Selection & Compatibility

• SY305 Configuration: Typically equipped with 6 spools for basic excavation functions.

• SY335 Configuration: Optional 8 spools to support additional hydraulic tools (e.g., breakers).

• Custom Options:

• Electro-hydraulic proportional spools (enhanced automation precision).

• Shock-resistant spools (for mining applications).

• Low-temperature startup kits (for extreme cold environments).

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