Bucket losing crowd force or cylinder rod leaking on your ZX670-5G? A worn ZX670-5G bucket cylinder allows piston bypass to reduce crowd force below what the 67-tonne machine needs for hard material penetration. RITO supplies this heavy-duty replacement bucket cylinder to restore full ZX670-5G bucket crowd force and clean seal operation.
Item NO.:
Excavator BucketOrder(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockZX670-5G Hydraulic Bucket Cylinder Assembly for Hitachi ZX670-5G, ZX670LC-5G, ZX650H-5G and ZX690-5G excavators. Large-format double-acting bucket cylinder rated for the high crowd forces generated by the 67-tonne ZX670 class. OEM-specification chrome rod and precision-honed bore ensure the bucket cylinder delivers full crowd force and complete seal service life.
| Part Number | ZX670-5G Bucket Cylinder |
|---|---|
| Part Name | Hydraulic Bucket Cylinder Assembly |
| Compatible Brand | Hitachi |
| Applicable Models | ZX670-5G, ZX670LC-5G, ZX650H-5G, ZX690-5G Excavator |
| Application | Bucket crowd and dump hydraulic cylinder for Hitachi ZX670-5G large excavator |
| Material | High-strength steel body, chrome-plated precision rod |
| Product Color | Orange or industrial finish |
| Working Temperature | -25°C~+80°C |
| Key Function | Provides hydraulic bucket crowd and dump force for ZX670-5G 67-tonne class excavator |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Bore diameter and wall thickness rated for ZX670-5G maximum bucket crowd pressure, maintaining structural integrity under the sustained high-force cycles of large-scale mining and quarry work.
Chrome rod specification matches ZX670-5G OEM for hardness and corrosion resistance, protecting the rod seal from premature wear in the abrasive dust environment of ZX670-class work sites.
Multi-layer piston seal including buffer seal rated for ZX670-5G maximum crowd pressure, protecting the primary piston seal from the pressure spikes generated during bucket penetration into hard rock.
Single cylinder assembly covers ZX670-5G, ZX670LC-5G, ZX650H-5G and ZX690-5G bucket cylinder specification.
FAQ
Q: How do I check the ZX670-5G bucket cylinder for internal bypass?
A: With bucket fully crowded and held against a hard stop, monitor for slow bucket dump movement over 60 seconds with controls at neutral. Any measurable dump movement confirms internal piston bypass.
Q: What rod seal material is used in the ZX670-5G bucket cylinder?
A: OEM-specification FKM (Viton) lip seals and PTFE backup rings are used for the ZX670-5G bucket cylinder rod seal assembly to withstand the operating temperature and hydraulic oil compatibility requirements.
Q: What safe working procedure applies to bucket cylinder replacement on ZX670-5G?
A: Support the bucket on rated-capacity stands before disconnecting the cylinder. Bleed bucket circuit pressure to zero before disconnecting hydraulic lines. Follow the Hitachi ZX670-5G maintenance manual procedures for cylinder removal.
Q: How to confirm this bucket cylinder fits my ZX670-5G?
A: Confirm machine model is ZX670-5G, ZX670LC-5G, ZX650H-5G or ZX690-5G. Match bore diameter, rod diameter and pin bore dimensions. Provide machine serial number for cross-reference.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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