Nguồn gốc:
Trung Quốc
Hàng hiệu:
Belparts
Chứng nhận:
CE
Số mô hình:
365BL II
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 |
365BL II Hydraulic Bucket Cylinder | PN:212-3081 / 2123081 | Premium Aftermarket Replacement
1. Basic Product Info
This heavy-duty aftermarket hydraulic bucket cylinder is precision manufactured as a direct interchange replacement for erpillar 365BL II large mining excavator. As the core hydraulic actuator of front working attachment, it drives bucket digging, rock grabbing, ore loading and dumping. Widely used in open-pit mines, large stone quarries, heavy infrastructure and mass earthmoving projects.
All cylinders are strictly produced following OEM technical specifi ions, with fully consistent mounting dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation without cutting, welding or any on-site secondary modifi ion.
| Item | Specifi ion |
|---|---|
| Product Name | Hydraulic Bucket Cylinder |
| Applicable Model | erpillar 365BL II Large Excavator |
| OEM Part Number | 212-3081, 2123081 (Two codes for one identical cylinder assembly) |
| Product Grade | Brand New High-Quality Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1 unit, sufficient stock for immediate shipment |
| QC Standard | ISO9001 certified, full hydraulic pressure & cyclic fatigue testing before delivery |
2. Core Technical Parameters
| # | Part No. | Description | Qty |
|---|---|---|---|
| All | 2081921 | BOOM GROUP | 1 |
| 1 | 2123090 | PIN AS | 1 |
| 2 | 2123094 | LINK AS | 1 |
| 3 | 2123081 | LINK & BEARING AS | 1 |
| 3A | 4I6718 | BEARING-SLEEVE | 4 |
| 4 | 1483307 | LINK | 1 |
| 5 | 0931349 | SEAL-O-RING (ID=175.00mm) | 2 |
| 6 | 2123088 | PIN AS | 1 |
| 7 | 9X4598 | SEAL; (OD=130.18mm) | 6 |
| 8 | 2123086 | PIN AS | 1 |
| 9 | 2123092 | PIN AS | 1 |
| 10 | 7X2562 | CAPSCREW, HEX HEAD (HM20 - 2.5 x 50 mm, G8) | 3 |
| 11 | 1955479 | PLATE | 2 |
| 12 | 2123095 | PLATE | 1 |
| 13 | 7X2553 | BOLT-PLT; (M16 X 2.0 X 40) | 9 |
| 14 | 9X8257 | WASHER-PIPE AS TO MAIN PUMP SUCTION PORT | 9 |
| 15 | 1985647 | SEAL-O-RING | 2 |
| 16 | 5B0651 | FITTING-STRAIGHT | 1 |
| 17 | 3B8489 | FITTING-GREASE; (FAN AND ALTERNATOR DRIVE) | 4 |
| 18 | 1955480 | PLATE | 1 |
| 19 | 8T4123 | WASHER-PLATED; (22X35X3.5-MM THK) | 3 |
| ---- | METRIC PART |
| Spec Item | Data |
|---|---|
| Bore Diameter | 160mm |
| Piston Rod Diameter | 102mm |
| Working Stroke | 1640mm |
| Rated Working Pressure | 31.4MPa |
| Factory Test Pressure | 47.1MPa (1.5 times rated working pressure) |
| Barrel Material | Ultra high-tensile seamless alloy steel with precision deep inner honing |
| Piston Rod | 40CrMo heat-treated steel, 30~35μm thick hard chrome plating, HRC68–72, superior wear & anti-bending performance for mining heavy loads |
| Matching Seal Kit PN | 212-3081K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure Feature | Extra thick reinforced double ear lugs with large quenched copper wear bushings, built-in heavy-duty buffer device to absorb violent impact during recipro ing movement |
3. Product Advantages
212-3081 and 2123081 refer to the same bucket cylinder assembly. All structural dimensions fully match original components, seamlessly connecting bucket linkages and hydraulic pipelines to support stable long-hour ultra-heavy mining operation.
Thickened cylinder barrel and integrated reinforced lug plates are optimized for harsh open-pit mine environments, resisting long-term ultra-heavy cyclic loads, sharp rock collision impacts and severe abrasion to maximize service life under severe working conditions.
Each finished cylinder undergoes repeated full-stroke recipro ing cycle test and high-pressure airtight leak detection, completely eliminating hidden internal and external oil leakage hazards to avoid unexpected mining downtime.
Delivers identical structural strength, stability and service lifespan as genuine OEM spare parts, effectively cutting high recurring procurement costs for mining repair workshops, heavy equipment rental fleets and global mining machinery spare parts wholesalers.
In-stock goods can be dispatched within 3 working days. Air freight meets urgent mine emergency repair orders; sea freight provides cost-saving bulk wholesale shipping for Africa, Southeast Asia, Middle East and Latin American mining markets.
4. Supplier Brief
Our factory has more than ten years of mature experience in R&D and manufacturing hydraulic cylinders for classic large mining excavator series including 365BL II. We supply complete boom, arm and bucket cylinder assemblies with mature heavy forging, precision honing and professional heat treatment craft, plus full-process strict quality control. Our aftermarket heavy-duty hydraulic cylinders are exported to global aftermarket markets all year round, winning long-term trust and consistent favorable feedback from global machinery spare parts dealers.
5. FAQ
Q1: Can this bucket cylinder fit 365BL or 375BL II excavators?
A: No. Different large excavator models adopt exclusive part numbers and unique structural dimensions without interchangeability. Please confirm your complete machine model before placing orders.
Q2: Does the standard package include the matching seal repair kit?
A: The seal repair kit is not included in standard delivery. You can purchase the dedi ed supporting seal kit separately, and we will offer a competitive combined order quotation.
Q3: What packaging is adopted for long-distance overseas sea transportation?
A: Anti-rust oil is injected into cylinder inner cavity, anti-rust grease evenly coated on piston rod surface; the whole cylinder wrapped with thick waterproof PE film and packed in extra thick reinforced export plywood cases to avoid collision, scratch and moisture damage during long ocean transit.
Q4: Are there tiered volume discounts for purchasing a full set of boom + arm + bucket cylinders?
A: Yes. Complete working device cylinder set orders enjoy graded preferential pricing. Consolidated full container shipment service is also available to lower total logistics expenses.
Q5: What after-sales technical support is available if oil leakage occurs within warranty?
A: Please provide clear photos of leakage position and excavator serial number. We will arrange free seal replacement and professional remote troubleshooting guidance promptly.
Gửi yêu cầu của bạn trực tiếp đến chúng tôi
