### **Product Overview**
This product is a high-performance Hydraulic Cylinder specially developed for DAEWOO wheeled loaders (such as the L130, L180, L220 series and others). It integrates a Hydraulic Control Valve group to achieve precise adjustment of the cylinder's movement and system protection. This design significantly simplifies the hydraulic pipeline layout, enhances response speed and control accuracy, and is particularly suitable for loading operations with frequent start-stop and high-precision positioning.
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### **Core Innovative Design**
#### **1. Integrated Valve Cylinder System**
- **Built-in Control Valve Assembly**: Incorporates flow control valve, overload relief valve and buffer valve to achieve:
✓ Continuous speed adjustment (±2% accuracy)
✓ Protection against sudden pressure shock (peak ≤ 40 MPa)
✓ Hydraulic buffering at the end of stroke (impact reduction by 70%)
- **Modular Plug-in Valve Core**: Allows for separate replacement of valve components, reducing maintenance costs by 50%
#### 2. Intelligent Condition Adaptation Technology
- **Load Sensitivity Adjustment**: Automatically adjust the output pressure based on the resistance of the bucket (dynamic adjustment range: 20-35 MPa)
- **Temperature Compensation Design**: Maintain flow stability within the oil temperature range of -20℃ to 80℃ (within ±5% accuracy)
#### 3. Enhanced Durability Design
- **Triple Sealing System**:
① Piston Rod: Utilizes a combination of Turcon® Glyd Ring and polyurethane dust-proof ring
② Valve Core: Hard alloy coating combined with precisely ground valve sleeve
③ Pipe Interface: 24° conical metal seal
- **Anti-contamination Structure**: Built-in 10μm filtration level protection module, capable of withstanding NAS 10 grade oil fluid
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### **Technical Specifications**
| **Project** | Parameter Specifications | |-------------------|-------------------------------------|
| **Compatible Models** | DAEWOO L130/L180/L220 and other 5-8 ton loader machines |
| **Standard Cylinder Diameter** | Φ90/Φ110/Φ125mm (optional) |
| **Valve Group Functions** | Flow control + overload protection + buffering + regeneration circuit |
| **Response Time** | ≤ 0.3s (valve core switching) |
| **Test Pressure** | 42MPa (pressure retention test at 1.5 times working pressure) |
| **Protection Grade** | IP69K (protection against high-pressure water gun flushing) |
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### **Typical Application Scenarios**
▌ **High-precision Loading Operations**: Container handling in ports, precise loading of minerals
▌ **High-frequency Handling Conditions**: Aggregate loading at concrete mixing plants, waste steel transportation
▌ **Operating in Harsh Environments**: Coal storage yards, sand and gravel transportation
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### **Customer Value**
◆ **Efficiency Enhancement**: Direct connection of valve cylinder reduces pipeline pressure loss, and the action cycle time is shortened by 15%
◆ **Longer Lifespan**: Impact protection extends the overhaul period of the oil cylinder to 12,000 hours
◆ **Convenient Maintenance**: Valve group faults can be diagnosed quickly through the inspection port, and replacement only takes 30 minutes
◆ **Energy-saving Advantage**: Load-sensitive system can reduce hydraulic power consumption by 20%
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### **Service Support**
√ Customized service for valve group parameters (pressure/flow/control mode)
√ Factory-level installation guidance and system debugging support
√ 24-month extended warranty (warranty for valve group and cylinder body separately)
Provide a more integrated and reliable hydraulic solution for modern intelligent loaders! **
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**Technical Consultation**: [Company's hydraulic engineers provide 24/7 online service]
**Delivery Timeframe**: Standard models take 7 days, customized designs take 15-20 working days
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