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Welcome to SWAFLY, your dedicated partner for high-quality engineering machinery spare parts. We proudly present the essential ARM CYLINDER component for HITACHI ZX330-5A excavators. The critical part numbers for this durable hydraulic cylinder are 9312267XXXH1 and its base number 9312267. As a leading supplier of excavator hydraulic parts, we ensure that this component meets stringent quality standards, offering perfect fitment and reliable operation for your heavy-duty HITACHI equipment.
Our focus is on delivering genuine and replacement HITACHI components, ensuring your ZX330-5A minimizes downtime. The 9312267XXXH1 (9312267) ARM CYLINDER is fundamental to the machine's digging and lifting capabilities, making its quality paramount to the overall performance of the HITACHI ZX330-5A.
At SWAFLY, our core business revolves around supplying reliable engineering machinery spare parts, including the full spectrum of excavator hydraulic components. Our extensive inventory supports global customers needing: hydraulic pump assemblies, final drive parts, swing device motors, control valve units, and various undercarriage parts. We are committed to being your one-stop source for reliable excavator parts and heavy equipment maintenance components.
Our long-tail keyword focus includes: excavator hydraulic pump repair kits, mini excavator final drive gear box, heavy duty track roller replacement, genuine Hitachi swing motor parts, affordable track adjuster recoil spring, fast shipping excavator boom cylinder seals, hydraulic control valve spool assembly, diesel engine fuel injector for construction machinery, turbocharger replacement for Isuzu engine, reliable track link and pin assembly, excavator bucket teeth and adapter systems, seal kit for hydraulic cylinder repair, heavy machine electrical system components, cabin assembly and interior parts, engine oil cooler replacement parts, undercarriage chain and sprocket replacement, excavator water pump and thermostat parts, starter motor and alternator for heavy equipment, hydraulic travel motor seal kit, and boom cylinder piston rod repair.
| No. | Brand | Part Number | Model | Description |
|---|---|---|---|---|
| 1 | 日立/HITACHI | 9306368 | ZX350-5 | track adjuster |
| 2 | 日立/HITACHI | 9312060 | ZX290-5 | track adjuster |
| 3 | 日立/HITACHI | YA00028290H3 | ZX890LCH-5A | CYL.;BOOM |
| 4 | 日立/HITACHI | YA00028291H3 | ZX890LCH-5A | CYL.;BOOM |
| 5 | 日立/HITACHI | 4697132 | ZX670-5G/690-5A | CYL.;BUCKET |
| 6 | 日立/HITACHI | 9257596 | ZX330-3 | Pump Device Assy |
| 7 | 日立/HITACHI | 9307833 | ZX330-5A | CYL;BOOM(L) |
| 8 | 日立/HITACHI | 9242907 | ZX240-3/-3G/-5A | Drive Motor |
| 9 | 日立/HITACHI | YA00023705 | ZX200-5A | Engine |
| 10 | 日立/HITACHI | 4680289 | ZX850-3 | CAB-ASSY |
| ... | ... | ... | ... | ... |
The ARM CYLINDER (Part Nos: 9312267XXXH1, 9312267) is a crucial component in the HITACHI ZX330-5A excavator's hydraulic system. It is responsible for extending and retracting the stick (or arm), which in turn controls the bucket's reach and positioning. Operating under immense pressure, the cylinder converts hydraulic fluid energy into linear mechanical motion. Its reliable function is directly tied to the machine's ability to perform precise and powerful digging cycles. Regular inspection and use of quality seal kit and piston pump parts ensure the longevity of the cylinder and the overall efficiency of the ZX330-5A.
Travel Device: Located in the undercarriage, drives the tracks. Example: HITACHI ZX240-5A TRAVEL-DEVICE.
Control Valve: Installed in the main hydraulic system block, directs oil flow to various actuators. Example: HITACHI ZX330-5A VALVE;CONTROL.
Boom Cylinder: Mounted between the frame and the boom, raises and lowers the main boom. Example: HITACHI ZX490LCH-5A CYL.;BOOM.
Swing Device: Located beneath the cab, enables the rotation of the upper structure. Example: HITACHI ZX240-5A Swing Device.
Track Adjuster: Located at the front idler of the track frame, maintains proper track tension. Example: HITACHI ZX350-5 track adjuster.
Piston Pump: Located near the engine, is the main source of hydraulic power. Example: HITACHI ZX70-5G Piston Pump.
Drive Motor: Integrated into the final drive, provides power to the track. Example: HITACHI ZX330-3 Drive Motor.
Cab Assembly: The operator's compartment, providing control and protection. Example: HITACHI ZX850-3 CAB-ASSY.
Final Drive: Located at the track sprocket, the gearbox for the travel motor. Example: HITACHI ZX330-5A Travel Device (Final Drive).
H Links: Connecting links in the bucket linkage. Example: HITACHI ZX210-5 H links.
At SWAFLY, we pride ourselves on a robust supply chain for all major brands in engineering machinery spare parts. Our extensive product line covers excavator hydraulic components, engine parts, electrical systems, and undercarriage parts. We ensure worldwide delivery of quality parts like the 9312267XXXH1 ARM CYLINDER for HITACHI ZX330-5A. Explore our dedicated portals:
www.swaflyparts.com (Main Parts Portal)
www.hitachi-isuzuparts.com (HITACHI & ISUZU Focus)
www.mttparts.com (General Machinery Parts)
www.kubotaengine.ca (Kubota Engine Specialists)
www.machineryengine.com (Engine Parts Solutions)
Need a specialized ARM CYLINDER, BOOM CYLINDER, or specific CONTROL VALVE component? SWAFLY offers full support for custom development and manufacturing of various precision hydraulic components and engine parts to meet unique equipment specifications.
Equipment: HITACHI ZX470-5G/490-5A Excavator
Problem: Intermittent loss of power and sluggish response in the boom and arm functions.
Diagnosis and Solution:
Upon inspection, technicians identified contamination and pressure drops associated with the main hydraulic Control Valve. Specifically, the spool for the CYL.;ARM (Part No. YA00028287) was sticking due to fine metallic particles, which interfered with the smooth directional control of hydraulic fluid. The solution involved flushing the entire hydraulic system, replacing the main VALVE;CONTROL assembly, and installing new high-quality hydraulic filters. This ensures clean fluid circulation and restores the machine's full operational efficiency and precision.
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