Hydraulic System
AssemblyMain pumps, control valve, swivel joint, and reservoir powering all functions. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Hydraulic System parts and their functions
8 top-level parts · 54 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Main Hydraulic Pump 5 parts | 1× | Tandem variable piston pump for dig and travel |
| 2 | Pilot Pump | 1× | Gear pump supplying pilot control pressure |
| 3 | Main Control Valve 4 parts | 1× | Sectional spool valve bank |
| 4 | Center Swivel Joint 4 parts | 1× | Rotary union passing oil to the undercarriage |
| 5 | Hydraulic Tank | 1× | Reservoir with return and pilot filters |
| 6 | Hydraulic Oil Cooler | 1× | Oil cooler |
| 7 | Hydraulic Hose | 16× | High-pressure hoses and fittings |
| 8 | Pressure Sensor | 2× | System pressure sensors |
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Bill of materials for Hydraulic System
8 top-level lines · 21 rows shown · 54 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Main Hydraulic Pump 5 parts | wheeled-excavator-main-pump | 1× | 1 | 11 | assembly |
| 1.1 | Pump Rotor Group | wheeled-excavator-pump-rotor | 2× | 2 | · | part |
| 1.2 | Swash Plate | wheeled-excavator-swash-plate | 2× | 2 | · | part |
| 1.3 | Pump Regulator | wheeled-excavator-regulator | 1× | 1 | · | part |
| 1.4 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 1.5 | Oil Seal | oil-seal | 2× | 2 | · | part |
| 2 | Pilot Pump | wheeled-excavator-pilot-pump | 1× | 1 | · | part |
| 3 | Main Control Valve 4 parts | wheeled-excavator-control-valve | 1× | 1 | 15 | assembly |
| 3.1 | Valve Spool | wheeled-excavator-valve-spool | 8× | 8 | · | part |
| 3.2 | Relief Valve | wheeled-excavator-relief-valve | 4× | 4 | · | part |
| 3.3 | O-Ring Set | oring-set | 2× | 2 | · | part |
| 3.4 | Valve Body | wheeled-excavator-valve-body | 1× | 1 | · | part |
| 4 | Center Swivel Joint 4 parts | wheeled-excavator-center-swivel | 1× | 1 | 7 | assembly |
| 4.1 | Swivel Spindle | wheeled-excavator-swivel-spindle | 1× | 1 | · | part |
| 4.2 | Swivel Housing | wheeled-excavator-swivel-housing | 1× | 1 | · | part |
| 4.3 | O-Ring Set | oring-set | 1× | 1 | · | part |
| 4.4 | Oil Seal | oil-seal | 4× | 4 | · | part |
| 5 | Hydraulic Tank | wheeled-excavator-hydraulic-tank | 1× | 1 | · | part |
| 6 | Hydraulic Oil Cooler | wheeled-excavator-hydraulic-cooler | 1× | 1 | · | part |
| 7 | Hydraulic Hose | wheeled-excavator-hydraulic-hose | 16× | 16 | · | part |
| 8 | Pressure Sensor | pressure-sensor | 2× | 2 | · | part |
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Where the hydraulic system is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $5–$2k. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| kbl.co.in ↗ | Pune, IN | Pumps & fluid systems | 200 units | 6–10 wks |
| leo.com.cn ↗ | Taizhou, CN | Pumps | 200 units | 6–10 wks |
| shaktipumps.com ↗ | Pithampur, IN | Pumps | 200 units | 6–10 wks |
| cnppumps.com ↗ | Hangzhou, CN | Pumps | 200 units | 6–10 wks |
| rotopumps.com ↗ | Noida, IN | Pumps | 200 units | 6–10 wks |