4639441 4646776 Hydraulic Arm Cylinder Assy for ZX330 ZX330-3 ZX350 ZX360 Excavator Parts
Specification
Product Name | Hitachi Hydraulic Arm Cylinder |
Machine Model | ZX330 ZX330-3 ZX350 ZX360 |
Part Number | 4639441 4646776 |
Cylinder Type | Arm Cylinder |
Sealing Brand | NOK (Japan) / SKF (USA) |
Rod Material | 45Mn Steel |
Tube Material | 25Mn / ST52 Honed Tube |
What We Do
We make hydraulic cylinders for small, medium, and large excavators.
1. Our factory is 6,800㎡ with modern workshops.
2. We use CNC machines, automatic welding, heat treatment, and testing equipment.
3. Custom orders are welcome — based on drawings, samples, or design improvements.
4. We ship by sea, air, or international express.
5. Compatible with major brands like CAT, Komatsu, Hyundai, Volvo, Hitachi, SANY, and Kobelco ,etc.
6. Certified with ISO 9001:2015 quality system.