Arm Seal Kit Description
The 31Y1-18480 arm cylinder seal kit is designed for Hyundai R360-7 and R360LC-7 excavators, providing a complete sealing solution for the arm (middle boom) hydraulic cylinder. It is engineered to restore sealing integrity, reduce hydraulic oil leakage, and maintain stable machine performance during heavy-duty operations.
Each seal in the kit, including rod seals, piston seals, wiper seals, and O-rings, is produced under strict manufacturing standards. High-performance materials such as polyurethane and NBR are used to ensure resistance against high pressure, friction, and harsh working environments commonly experienced in construction and mining operations.
This arm cylinder repair kit is widely adopted by repair shops, distributors, and fleet owners who require consistent quality and reliable supply. As a professional supplier, YNF Machinery provides stable quality control and bulk supply capability, helping B2B customers reduce downtime and increase operational efficiency while maintaining strong local market competitiveness.
Arm Cylinder Seal Kit Technical Data Sheet
| Item |
Specification |
| Product Name |
Arm Cylinder Seal Kit |
| Part Number |
31Y1-18480 |
| YNF Number |
YNF18312 |
| Machine Model |
Hyundai R360-7 / R360LC-7 |
| Application |
Arm hydraulic cylinder repair |
| Material |
PU, NBR, PTFE |
| Seal Type |
Rod seal, piston seal, wiper seal, O-ring |
| Installation Position |
Arm cylinder |
| Brand |
YNF |
| Origin |
China |
| MOQ |
1 set |
| Payment Terms |
T/T, L/C, Western Union |
| Shipping Method |
Air, Sea, Express |
| Delivery Time |
3–7 days (in stock) |
| Packaging |
Standard export packaging |
Arm Cylinder Seal Kit Applications
| Application Field |
Description |
| Construction Projects |
Excavation and material handling operations |
| Mining Industry |
Heavy-duty digging and loading tasks |
| Infrastructure Development |
Road, bridge, and building works |
| Hydraulic Maintenance |
Arm cylinder sealing and repair services |
| Equipment Refurbishment |
Excavator rebuilding and reconditioning |
R360-7 Arm Seal Kit Detail Display
FAQ:
Q1: Is this kit compatible with R360-7 and R360LC-7?
Yes, it is designed for Hyundai R360-7 and R360LC-7 using part number 31Y1-18480.
Q2: What seals are included?
The kit includes piston seals, rod seals, dust seals, and O-rings for full arm cylinder repair.
Q3: Can YNF support bulk supply?
Yes, YNF Machinery specializes in B2B wholesale and long-term supply.
Q4: What is the advantage of this seal kit?
It ensures stable sealing performance, reduces leakage, and extends cylinder service life.
