GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED
| Model | PC1250SP-8 |
| Part name | Hydraulic Bucket Cylinder |
| Application | Excavator |
| Payment Terms | L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL |
| Delivery Time | 3-7 Day |
| Shipment | DHL FEDEX TNT EMS UPS / Ses / Air |
| Packaging Details | Wooden Case Packing |
| Quality | Aftermarket High Quality |
| Product name | 21N-70-00412 |
| Condition | New |
| Warranty | 1 Year |
| Supply Ability | 100 PCS / Months |
| Emission standards | Stage V |
| Model Number | PC1250SP-8 |
| Certification | CE |
| Brand Name | Belparts |
| Place of Origin | China |
View Detail Information
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Product Specification
| Model | PC1250SP-8 | Part name | Hydraulic Bucket Cylinder |
| Application | Excavator | Payment Terms | L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL |
| Delivery Time | 3-7 Day | Shipment | DHL FEDEX TNT EMS UPS / Ses / Air |
| Packaging Details | Wooden Case Packing | Quality | Aftermarket High Quality |
| Product name | 21N-70-00412 | Condition | New |
| Warranty | 1 Year | Supply Ability | 100 PCS / Months |
| Emission standards | Stage V | Model Number | PC1250SP-8 |
| Certification | CE | Brand Name | Belparts |
| Place of Origin | China |
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 |
Komatsu PC1250SP-8 Hydraulic Bucket Cylinder | PN:21N-70-00412 | Premium Aftermarket Replacement
1. Basic Product Info
High-quality aftermarket bucket hydraulic cylinder with OEM part number 21N-70-00412, direct replacement for Komatsu PC1250SP-8 large mining excavator. It controls bucket opening and closing for heavy mining, quarry excavation and bulk material loading. Manufactured strictly per original OEM drawings, identical mounting dimensions, pin spacing and oil port layout enable direct bolt-on installation without on-site modification.
| Item | Specification |
|---|---|
| Product Name | Hydraulic Bucket Cylinder |
| Applicable Model | Komatsu PC1250SP-8 |
| OEM Part No. | 21N-70-00412 |
| Product Grade | Brand New Premium Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1 unit available from stock |
| QC Standard | ISO9001 certified, full hydraulic pressure test before delivery |
2. Core Technical Parameters
| # | Part No. | Description | Qty |
|---|---|---|---|
| 1 | 21N-70-00412 | LINK ASS'Y | 1 |
| 1 | 21N-70-00411 | LINK ASS'Y | 1 |
| 1 | 21N-70-00410 | LINK ASS'Y | 1 |
| 1 | ---- | LINK | 1 |
| 1 | ---- | LINK | 1 |
| 1 | ---- | LINK | 1 |
| 2 | 21N-70-12170 | Bushing | 4 |
| 3 | 07020-00675 | FITTING,GREASE (WITHOUT LUB. PIPING) | 1 |
| 4 | 07020-00000 | FITTING, GREASE - UPPER HINGE PIN | 1 |
| 5 | 209-72-11261 | SEAL (KIT) | 4 |
| 6 | 21N-70-33221 | LINK | 2 |
| 7 | 21N-72-11230 | SHIM? 1.0MM | 5 |
| 8 | 21N-72-11230 | SHIM? 1.0MM | 5 |
| 9 | 21N-70-33130 | Pin | 1 |
| 10 | 21T-72-73170 | STOPPER | 1 |
| 11 | 01010-81645 | BOLT,(FOR 60TON DUMP BODY) | 3 |
| 12 | 01643-31645 | WASHER,(FOR TRAVEL MOTOR) (NOT SHOW) | 3 |
| 13 | 21N-70-33130 | Pin | 1 |
| 14 | 21T-72-73170 | STOPPER | 1 |
| 15 | 01010-81645 | BOLT,(FOR 60TON DUMP BODY) | 3 |
| 16 | 01643-31645 | WASHER,(FOR TRAVEL MOTOR) (NOT SHOW) | 3 |
| 17 | 21N-70-33142 | Pin | 1 |
| 18 | 209-70-73180 | HOLDER | 1 |
| 19 | 01010-82460 | CAPSCREW | 3 |
| 20 | 01643-32460 | WASHER,(WITHOUT ROPS GUARD? CANOPY) | 3 |
| 21 | 21N-70-33161 | Pin | 1 |
| 22 | 209-70-73180 | HOLDER | 1 |
| 23 | 01010-82460 | CAPSCREW | 3 |
| 24 | 01643-32460 | WASHER,(WITHOUT ROPS GUARD? CANOPY) | 3 |
| 25 | 21N-70-32140 | Pin | 1 |
| 26 | 207-70-11340 | SPACER? 0.8MM | 6 |
| 27 | 21N-70-33170 | STOPPER | 1 |
| 28 | 01010-81645 | BOLT,(FOR 60TON DUMP BODY) | 3 |
| 29 | 01643-31645 | WASHER,(FOR TRAVEL MOTOR) (NOT SHOW) | 3 |
| 30 | 21N-70-13150 | O-ring | 2 |
| 31 | 21N-72-11230 | SHIM? 1.0MM | 3 |
| 32 | 07000-16215 | O-ring | 2 |
| Spec Item | Data |
|---|---|
| Bore Diameter | 180mm |
| Piston Rod Diameter | 125mm |
| Working Stroke | 1120mm |
| Rated Working Pressure | 34.3MPa |
| Factory Test Pressure | 51.45MPa (1.5 times rated working pressure) |
| Barrel Material | High-tensile seamless alloy steel, precision inner honing |
| Piston Rod | 40CrMo tempered steel, 28~32μm hard chrome plating, HRC68~72 anti-wear & anti-deformation |
| Matching Seal Kit PN | 21N-70-00412K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure | Double ear lugs with quenched copper wear bushings, built-in impact buffer device |
3. Product Advantages
4. Supplier Brief
We specialize in Komatsu large mining excavator hydraulic cylinders for over 11 years, supplying complete boom, arm and bucket cylinders for PC800, PC1250 series. Our products are widely exported to mining areas, Africa, Southeast Asia and Middle East spare parts markets.
5. FAQ
Q1: Can this cylinder fit other PC1250 series models?
A: It is specially designed for PC1250SP-8, not compatible with PC1250-7 and other old versions.
Q2: Is the seal repair kit included in standard package?
A: Standard product does not contain seal kit. The matched repair kit 21N-70-00412K can be purchased separately with bundle discount.
Q3: What packaging is used for long-distance sea transportation?
A: Inner cavity filled with anti-rust oil, piston rod coated with anti-rust grease, wrapped with waterproof PE film and packed in solid export plywood case.
Q4: Can I get discount for ordering full set of boom, arm and bucket cylinders?
A: Combined order enjoys tiered unit price discount and consolidated shipment to save logistics cost.
Q5: How to solve oil leakage problem within warranty period?
A: Provide clear photos of leakage position and excavator serial number, we offer free replacement seal kit and remote technical guidance.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2013
Total Annual:
900000-3000000
Employee Number:
50~93
Ecer Certification：
Verified Supplier
GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service.... GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service....
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