

## **Product Overview**
This product is a mid-arm Hydraulic Cylinder specifically designed for Daewoo series hydraulic excavators. It is made of high-quality materials and manufactured with precision techniques, ensuring a perfect fit with various models of Daewoo excavators. The cylinder boasts excellent load-bearing capacity and durability, and is suitable for various high-intensity excavation operations.
## **Core Features**
### **1. Precise Matching Design**
- Specifically designed for mainstream models such as Daewoo DH220/DH300/DH500
- Strictly adheres to the original factory installation dimensions and performance parameters
- Offers OEM quality from the original manufacturer, perfectly replacing the original accessories
### 2. Outstanding Durability
- The cylinder body is forged from high-strength alloy steel (42CrMo)
- The piston rod surface is plated with hard chromium (thickness ≥ 0.05mm)
- German MERKEL or Japanese NOK seals are used
- The working pressure can reach 35 MPa, and the impact pressure is 40 MPa
### 3. Optimized Performance
- Built-in buffering design to reduce impact at the end of the stroke
- Optimized sealing structure to minimize internal leakage risks
- Precise guiding system to ensure smooth operation without any jamming
### 4. Convenient Maintenance Design
- Modular structure design, facilitating on-site maintenance
- Provision of maintenance kits (sealing component packages)
- Standardized interfaces, making replacement easy
## **Technical Specifications**
| Parameter | Specification | |------|------|
| Applicable Models | Daewoo DH220/DH300/DH500, etc. |
| Cylinder Diameter | 80 - 160mm (depending on the model) |
| Rod Diameter | 55 - 110mm |
| Stroke | 800 - 1500mm |
| Working Pressure | 31.5MPa |
| Test Pressure | 38MPa |
| Working Temperature | -30℃ to +80℃ |
## **Quality Assurance**
- 100% factory pressure test
- 12-month quality guarantee
- Complete after-sales service system
- Provide original factory-level technical support and installation guidance
## **Product Advantages**
- 100% interchangeable with the original parts, no modification required during installation
- Lifespan can exceed 8,000 working hours
- Optimized sealing system, reducing maintenance frequency
- Excellent anti-pollution capability