उत्पत्ति के प्लेस:
चीन
ब्रांड नाम:
Belparts
प्रमाणन:
CE
मॉडल संख्या:
316FL
| Hydraulic Parts | Hydraulic Pump | Final Drive | Travel Reduction |
| Swing Motor | Swing Reduction | Control Valve | Gear Parts |
| Slew Bearing | Engine Assembly | Hydraulic Cylinder | ECU |
This robust dipper arm hydraulic cylinder serves as a direct plug-and-play aftermarket spare engineered exclusively for 316FL mid-sized modern excavator. As the core telescopic power unit of front digging attachments, it governs arm extension and retraction to complete municipal pipeline trenching, residential lot excavation, road surface trimming and small aggregate yard sorting. It is a core stocked spare for urban compact equipment repair workshops, medium-volume excavation rental operators and cross-border component suppliers focusing on FL generation medium diggers.
All manufacturing workflows strictly comply with original OEM dimensional standards and engineering drawings. Mount lug center spacing, pin hole bore, copper bushing inner aperture and hydraulic port angle fully match two interchangeable part codes 385-2915 and 3852915. No grinding, cutting or welding field modifi ion is required during replacement installation, effectively trimming maintenance labor expenses and eliminating costly construction halt losses caused by sudden machine faults.
| Item | Detailed Specifi ion |
|---|---|
| Full Product Name | Complete Dipper Arm (Stick) Hydraulic Cylinder Assembly |
| Applicable Equipment | erpillar 316FL Medium Excavator |
| Interchange OEM Part Numbers | 385-2915, 3852915 |
| Product Grade | Reinforced aftermarket hydraulic assembly for medium-duty construction |
| Quality Warranty | 12-month full warranty covering all factory production defects |
| Minimum Order Quantity | 1 unit, abundant spot stock for immediate shipment |
| QC Control Norm | ISO9001 full-process traceable production; 100% high-pressure airtight leakage test & full-stroke recipro ing fatigue test before packaging |
| Technical Index | Standard Value |
|---|---|
| Cylinder Tube Inner Bore | 114 mm |
| Hard Chrome Plated Piston Rod Diameter | 72 mm |
| Effective Working Stroke | 1240 mm |
| Rated System Operating Pressure | 31.4 MPa |
| Factory Hydraulic Proof Test Pressure | 47.1 MPa (1.5 times rated pressure for all-round internal & external leak inspection) |
| Barrel Raw Material | High tensile seamless alloy steel with deep precision inner honing, delivering smooth low-friction inner wall resistant to long-hour medium-load hydraulic circulation wear |
| Piston Rod Surface Treatment | 40CrMo quenched & tempered base material, 28–32μm dense hard chrome coating, surface hardness HRC68–72, outstanding scratch and anti-bending performance against frequent minor collisions on urban construction sites |
| Matching Dedi ed Seal Kit PN | 385-2915K |
| Applicable Operating Temperature Range | -25℃ ~ +85℃ |
| Structural Feature | Compact thickened integrated arm connection lugs paired with wear-resistant copper alloy bushings; single-stage built-in buffer valve to absorb end-stroke impact and lower vibration noise during frequent arm stretching and retracting cycles |
385-2915 and 3852915 represent the identical stick cylinder assembly, perfectly compatible with all original mounting hardware of 316FL. Every connecting dimension is consistent with genuine factory components, enabling seamless docking with original arm linkages and hydraulic pipelines. It thoroughly avoids assembly misalignment that triggers premature seal aging and continuous oil leakage caused by forced installation.
The cylinder barrel and cast integrated lug plates adopt targeted wall thickness reinforcement customized for high-frequency daily operation characteristics of FL new-generation medium excavators. It withstands long-term alternating medium loads and accidental impacts from concrete curbs, tree roots and broken gravel, boasting far longer service life than thin-wall universal aftermarket cylinders without structural reinforcement.
Each finished cylinder undergoes two rounds of strict testing before leaving the factory. Full-stroke recipro ing fatigue testing simulates uninterrupted all-day urban digging to verify overall structural rigidity; long-duration high-pressure soaking airtight inspection comprehensively scans all internal and external leakage points. All unqualified products are completely filtered out before warehousing to prevent unexpected construction shutdown losses for end users.
This aftermarket stick cylinder achieves the same structural toughness, operation smoothness and service cycle as authentic OEM spare parts at a much more competitive unit price. It significantly reduces long-term repeated maintenance expenditures for independent repair workshops and rental companies equipped with batches of 316FL excavators.
All in-stock products can be dispatched within 3 working days after payment confirmation. Air express supports emergency rush orders for sudden equipment breakdowns on urban construction sites; consolidated bulk sea cargo and full FCL container shipping provide cost-effective wholesale transportation solutions for machinery distributors covering municipal engineering markets in Africa, Southeast Asia and the Middle East.
Our factory has over ten years of professional R&D and mass production experience in hydraulic cylinders for FL series medium excavators, including the mainstream 316FL model. We possess complete supporting production lines including heavy precision forging, deep inner honing, integral heat treatment and automatic chrome plating, equipped with professional load simulation test benches to restore real urban construction working environments and continuously upgrade product anti-shock durability. Our aftermarket hydraulic cylinder product line is exported to dozens of regions worldwide all year round, gaining stable long-term cooperative trust and consistent favorable reviews from global construction machinery spare parts distributors relying on precise model matching and stable uniform quality.
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