SONGZ High elasticity Hydraulic Cylinder Seal Repair Kit for Excavator
The high-strength seals made of enhanced PPDI polyurethane material are used for configuration.
These seals are designed with quality in mind, which helps reduce the loss of process fluids and improve the overall performance of the system.
- Description
- Configuration information
- Specifications
- Recommended Products
Description
Structural Design:
A seal kit is a collection of seals, gaskets, and O-rings essential for various industries' sealing systems. It helps protect the equipment from dirt, dust, oil, and moisture. The seals also prevent fluid leakage, helping to ensure that the system operates at peak efficiency.
The kit is designed for specific parts of the excavator equipment. They are equipped with the necessary components for thorough repair of the specific item, such as seals, gaskets, retainers, and other accessories.
Summary of Advantages:
- Adequate inventory and spot goods, fast delivery
- You can send us your equipment model, and we can match complete excavator hydraulic repair seal kits according to your equipment or tailor it to your needs.
- We provide high-quality, high-performance excavator seal kits of various sizes suitable for various brands of excavators at highly competitive prices.
Typically made from polyurethane, alternative materials can be provided upon request to suit your specific needs.
Configuration information


|
Component |
Function |
|
Double-Acting Piston Seal (Composite carbon fiber/HNBR/Filled PTFE/) |
Maintains pressure integrity between cylinder chambers for smooth bidirectional movement. |
|
High-Performance Rod Seal (Glyd Ring/U-Cup) |
Prevents hydraulic fluid leakage under high-pressure cycles (up to 40 MPa). |
|
Multi-Lip Wiper Seal (Polyurethane/Metal) |
Defends against dirt, water, and debris, extending the lifespan of internal components. |
|
Wear-Resistant Guide Band (PTFE + Bronze) |
Minimizes metal-to-metal friction, ensuring precise piston alignment and reduced wear. |
|
Static O-Rings (FKM/NBR) |
Seal end caps, ports, and threaded joints, compatible with most hydraulic fluids. |
|
Backup Rings (Nylon/POM) |
Protect primary seals from extrusion in high-pressure or shock-load scenarios. |
Specifications
| You can send us your device model, and we can match the complete excavator hydraulic repair seal kit according to your device, or customize it according to your needs. | ||||
| FOR KOMATSU | ||||
| PC100-6 | PC120-6 | PC130-5/6 | PC150-5 | PC200-5/6 |
| PC220-7/8 | PC300-5/6 | PC350-5/6 | PC400-7/8 | PC800-7 |
| FOR CATERPILLAR | ||||
| E305.5D/E | E307C/D | E311C | E312D/D2 | E319D |
| CAT200B | E320B/C/D | E320C | E336D/GC | E365B/C |
| FOR DOOSAN | ||||
| DX60 | DX80 | DX140LC | DX180LC | DX260LC-7 |
| DX480LC | DH60-7 | DH130-5 | DH225-7 | DH300-5/7 |
| FOR HIACHI | ||||
| EX120-2/3/5 | EX200-2/3 | EX270-5 | EX300-5 | EX400LC-5 |
| ZAX70-3 | ZAX120 | ZAX160 | ZAX200 | ZAX240-3 |
| FOR SUMITOMO | ||||
| SH75UU-3 | SH80-5 | SH100-1/2 | SH120A3 | SH130-5 |
| SH200A1/A3 | SH210-5 | SH220A3 | SH240-5 | SH350-3/5 |
| FOR KOBELCO | ||||
| SK60-5/8 | SK75-8 | SK100-3/5/6/SK115 | SK130/140-8 | SK200-5 |
| SK200/210-6E | SK230-6E | SK250-8 | SK350-8 | SK450-6/8 |
| FOR HYUNDAI | ||||
| R55/60-5/7 | R75/80-7 | R110-7 | R150-7/9 | R200/210-5 |
| R225-7/9 | R265-9 | R305-7/9 | R335-7/9 | R385-9/T |
| FOR KATO | ||||
| HD140 | HD450SEV/5/7 | HD700-5/7 | HD820-2/3/R | HD1430 |
| There are also VOLVO, SANY, LOVOL, XCMG, LONKING, XGMA, and LIUGONG,etc | ||||