Miejsce pochodzenia:
Chiny
Nazwa handlowa:
Belparts
Orzecznictwo:
CE
Numer modelu:
ZX450LC ZX450
More Branded Accessories are Available
| Hydraulic Parts | Hydraulic Pump | Final Drive | Travel Reduction |
|---|---|---|---|
| Swing Motor | Swing Reduction | Control Valve | Gear Parts |
| Slew Bearing | Engine Assembly | Hydraulic Cylinder | ECU |
ZX450LC / ZX450 Hydraulic Arm Cylinder for Hitachi Excavator | PN:4340512 | Premium Aftermarket Replacement
1. Basic Product Info
| Item | Specification |
|---|---|
| Product Name | Hydraulic Arm Cylinder |
| Applicable Model | Hitachi ZX450LC, ZX450 Excavator |
| OEM Part Number | 4340512 |
| Product Grade | Brand New High-Quality Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1 unit, ample stock for immediate delivery |
| QC Standard | ISO9001 certified, full hydraulic pressure and cyclic tests before shipment |
2. Core Technical Parameters
| # | Part No. | Description | Qty |
|---|---|---|---|
| 4310243 | CYL.; ARM | 1 | |
| 125 | 4340512 | . CYL. (PIPELESS) | 1 |
| 1 | 0420301 | .. TUBE; CYL. ASS'Y | 1 |
| 1A | ---- | ... TUBE; CYL. | 1 |
| 1B | 0420102 | ... BUSHING; PIN | 1 |
| 2 | 0420302 | .. ROD; PISTON ASS'Y | 1 |
| 2A | ---- | ... ROD; PISTON | 1 |
| 2B | 0420102 | ... BUSHING; PIN | 1 |
| 3 | 0420303 | .. HEAD; CYL. | 1 |
| 4 | 0353004 | .. BUSHING | 1 |
| 5 | 0133709 | .. RING; RETAINING | 1 |
| 6 | 0353005 | .. RING | 1 |
| 7 | 0191405 | .. PACKING; U-RING | 1 |
| 8 | 0257005 | .. RING; BACK-UP | 1 |
| 9 | 0417605 | .. RING | 1 |
| 10 | 4437982 | .. RING; WIPER | 1 |
| 11 | A811180 | .. O-RING | 1 |
| 12 | 0242507 | .. RING; BACK-UP | 1 |
| 13 | 0353013 | .. BOLT; SOCKET | 8 |
| 14 | 0420304 | .. BRG.; CUSHION | 1 |
| 15 | 0420310 | .. SEAL | 1 |
| 16 | 0420306 | .. PISTON | 1 |
| 17 | 0242510 | .. RING; SEAL ASS'Y | 1 |
| 18 | 0420307 | .. RING; SLIDE | 2 |
| 19 | 0242512 | .. RING; SLIDE | 2 |
| 20 | 0353009 | .. NUT | 1 |
| 21 | 0353010 | .. SHIM | 1 |
| 22 | 0353011 | .. BALL; STEEL | 1 |
| 23 | 0353012 | .. SCREW; SET | 1 |
| 25 | 0420110 | .. RING; WIPER | 4 |
| 56 | 0420308 | . PIPE | 1 |
| 57 | 0420309 | . PIPE | 1 |
| 58 | 955612 | . O-RING | 2 |
| 60 | 0353016 | . CLAMP; PIPE | 2 |
| 61 | 0254312 | . BOLT | 2 |
| 62 | A590914 | . WASHER; SPRING | 2 |
| 63 | 0408815 | . BOLT | 4 |
| 64 | 0325913 | . WASHER | 4 |
| 65 | 0353017 | . BAND | 2 |
| 66 | 0353018 | . BAND | 2 |
| 67 | 0353019 | . BOLT; SOCKET | 8 |
| 100 | 4340621 | KIT; SEAL | 1 |
| 101 | 4438679 | KIT; SEAL | 1 |
| Spec Item | Data |
|---|---|
| Bore Diameter | 152mm |
| Piston Rod Diameter | 100mm |
| Working Stroke | 1590mm |
| Rated Working Pressure | 31.4MPa |
| Factory Test Pressure | 47.1MPa (1.5 times the rated working pressure) |
| Barrel Material | High-tensile seamless alloy steel with precision inner honing |
| Piston Rod | 40CrMo heat-treated steel, 28~32μm hard chrome plating, HRC68~72 for superior wear resistance and anti-deformation performance |
| Matching Seal Kit PN | 4340512K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure | Double ear lugs with quenched copper wear bushings, built-in buffer device to reduce impact during operation |
3. Product Advantages
4. Supplier Brief
5. FAQ
Q1: Can this arm cylinder fit Hitachi ZX400 or ZX470 excavator models?
A: No. Different Hitachi excavator models are equipped with exclusive part numbers and structural sizes, which are not interchangeable. Please confirm your equipment model before placing orders.
Q2: Does the standard package include the dedicated seal repair kit?
A: The seal repair kit is not included in standard products. You can purchase the matching repair kit separately, and we will offer a favorable price for combined orders.
Q3: What packaging is used for long-distance overseas sea transportation?
A: Anti-rust oil is injected into the cylinder interior, and anti-rust grease is applied on the piston rod surface. The whole product is wrapped with waterproof PE film and packed in solid export plywood cases.
Q4: Are there preferential policies for purchasing a full set of working device cylinders?
A: Yes. Orders for complete cylinder sets enjoy tiered discounts. We also provide consolidated shipment service to help customers cut down logistics expenses.
Q5: What after-sales support will be provided if oil leakage occurs within the warranty period?
A: Please take clear photos of the leakage position and provide the excavator serial number. We will arrange free seal replacement and professional remote troubleshooting guidance in a timely manner.
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