BOMwiki the bill-of-materials encyclopedia
30,454,201 parts mapped · 193,225 items
Discussion History

Hydraulic System

Assembly

Main pumps, control valve, travel and swing motors, and cylinders. 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

7 top-level parts · 85 parts in total · full bill of materials below
Hydraulic System parts diagram: 1 main hydraulic pump, 2 pilot gear pump, 3 main control valve, 4 travel drive motor, 5 hydraulic tank, 6 hydraulic hose, 7 pressure sensor. 85 parts in 7 top-level items.
Hydraulic System parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Main Hydraulic Pump 6 parts 1× Twin variable-displacement piston pump
2 Pilot Gear Pump 1× Gear pump supplying pilot pressure
3 Main Control Valve 5 parts 1× Sectional spool valve bank
4 Travel Drive Motor 5 parts 2× Track drive motors, one per side
5 Hydraulic Tank 1× Reservoir and return filter
6 Hydraulic Hose 16× High-pressure hoses and fittings
7 Pressure Sensor 3× Pump and system pressure sensors

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Hydraulic System

7 top-level lines · 27 rows shown · 85 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Main Hydraulic Pump 6 parts track-excavator-main-pump 1× 1 12 assembly
1.1 Pump Rotary Group track-excavator-pump-rotary-group 2× 2 · part
1.2 Swash Plate track-excavator-swash-plate 2× 2 · part
1.3 Pump Regulator track-excavator-regulator 1× 1 · part
1.4 Gearbox Housing gearbox-housing 1× 1 · part
1.5 Ball Bearing ball-bearing 4× 4 · part
1.6 Oil Seal oil-seal 2× 2 · part
2 Pilot Gear Pump track-excavator-pilot-pump 1× 1 · part
3 Main Control Valve 5 parts track-excavator-control-valve 1× 1 22 assembly
3.1 Valve Spool track-excavator-valve-spool 9× 9 · part
3.2 Relief Valve track-excavator-relief-valve 4× 4 · part
3.3 Load Check Valve track-excavator-check-valve 6× 6 · part
3.4 O-Ring Set oring-set 2× 2 · part
3.5 Valve Body track-excavator-valve-body 1× 1 · part
4 Travel Drive Motor 5 parts track-excavator-travel-motor 2× 2 15 assembly
4.1 Motor Rotary Group track-excavator-motor-rotary-group 1× 2 · part
4.2 Travel Parking Brake track-excavator-travel-brake 1× 2 · part
4.3 Ball Bearing ball-bearing 2× 4 · part
4.4 Oil Seal oil-seal 2× 4 · part
4.5 Travel Reduction Gear 4 parts track-excavator-travel-reduction 1× 2 9 assembly
4.5.1 Helical Gear Pair gear-pair 2× 4 · part
4.5.2 Gearbox Housing gearbox-housing 1× 2 · part
4.5.3 Ball Bearing ball-bearing 4× 8 · part
4.5.4 Oil Seal oil-seal 2× 4 · part
5 Hydraulic Tank track-excavator-hydraulic-tank 1× 1 · part
6 Hydraulic Hose track-excavator-hydraulic-hose 16× 16 · part
7 Pressure Sensor pressure-sensor 3× 3 · part

Something wrong in this list? Report a problem with this BOM.

Where the hydraulic system is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used 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
VendorHQSpecialtyMOQLead time
🇮🇳Kirloskar
kbl.co.in ↗
Pune, IN Pumps & fluid systems 200 units 6–10 wks
🇨🇳Leo Group
leo.com.cn ↗
Taizhou, CN Pumps 200 units 6–10 wks
🇮🇳Shakti Pumps
shaktipumps.com ↗
Pithampur, IN Pumps 200 units 6–10 wks
🇨🇳CNP Pumps
cnppumps.com ↗
Hangzhou, CN Pumps 200 units 6–10 wks
🇮🇳Roto Pumps
rotopumps.com ↗
Noida, IN Pumps 200 units 6–10 wks