Original parts C E312C excavator boom cylinder seal kit for Komatsu Hyundai Hitachi
| Brand Support | C| KOMATSU | HITACHI | ||
|---|---|---|---|
| Brand | WYS® | Country of Origin | Korea |
| Product Name | C-E312C | Part Name | Arm Seal Kit |
| Material | HNR | Quanlity | 1 EA |
| Temperature (DEG) | -40°C to +100°C | Stress (MPA) | 35 MPa-42 MPa |
| CertifiCion | CE | MOQ | 1 SET |
| Guarantee Period | 1 Year | Test Report | Available |
| Delivery Time | 5-7 Days | After-sales Service | Online Support |
Advantages
►Highest Reliability
After repair, the components approach original factory performance standards, resulting in a long service life and extremely low failure rate.
►Optimal Performance Matching
Nearly 100% compatibility with the hydraulic system (pumps, valves, and fluids) ensures smooth operation, quick response, and no leaks.
►Protects Overall Equipment Value
Prevents oil contamination and component wear caused by poor sealing, protecting expensive hydraulic pumps and main control valves.
►Lower Total Cost of Ownership
Although the initial purchase cost may be higher than aftermarket parts, its longer service life and extremely high reliability reduce downtime, repeated repairs, and the risk of collateral damage, resulting in a lower total cost.
Main Components
| Main piston seal | Polyurethane U-ring or similar combination seal |
| Piston rod main seal | Step seal or similar multi-lip seal |
| Buffer seal | LoCed on the inner side of the rod seal, used for high-pressure protection |
| Dust seal | Double-lip or multi-lip dust seal |
| Guide ring/Support ring | Piston guide ring (PTFE),Rod guide bushing (bronze bushing) |
| O-rings | Available in various sizes, used for static sealing |
| Back-up ring | installed on the high-pressure side of the main seal to prevent extrusion |
| Spare fixing screws/circlips: | Some kits include critical threaded fasteners or circlips |
| Lubricant | A small packet of specialized assembly grease |
We provide wholesale, distribution, and repair solutions for excavator seals to customers in Southeast Asia, South America, the Middle East, and Europe, earning the trust of a wide range of clients.
Through trade shows, we have also established valuable partnerships.
No matter where you are from, we are dediCed to helping you achieve profitability.
- Payment Methods: LC, T/T, PayPal, Alipay, Western Union
- Shipping Options: By sea, air, or express - determined by customer preference
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.