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Discussion History

Boom weldment

Assembly

Curved welded box-section structure of high-tensile steel plate, carrying the foot pins at the chassis and the arm joint at the tip. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Boom weldment parts and their functions

11 top-level parts · 21 parts in total · full bill of materials below
Boom weldment parts diagram: 1 boom box section, 2 boom foot lug, 3 boom top plate, 4 boom bottom plate, 5 boom side plate, 6 boom cylinder mount, 7 arm cylinder mount, 8 boom lifting eye, 9 boom tip boss, 10 boom gusset, 11 fastener set. 21 parts in 11 assemblies.
Boom weldment parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Boom box section 1× Main curved box girder
2 Boom foot lug 2× Foot pivot lugs
3 Boom top plate 1× Top chord plate
4 Boom bottom plate 1× Bottom chord plate
5 Boom side plate 2× Web side plates
6 Boom cylinder mount 2× Boom cylinder rod-end lugs
7 Arm cylinder mount 1× Arm cylinder base mount
8 Boom lifting eye 2× Lifting/tie-down eyes
9 Boom tip boss 2× Arm joint pin bosses
10 Boom gusset 6× Internal stiffening gussets
11 Fastener Set 1× Weld-on hardware kit

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
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Bill of materials for Boom weldment

11 top-level lines · 11 rows shown · 21 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Boom box section eb-boom-box-section 1× 1 · part
2 Boom foot lug eb-boom-foot-lug 2× 2 · part
3 Boom top plate eb-boom-top-plate 1× 1 · part
4 Boom bottom plate eb-boom-bottom-plate 1× 1 · part
5 Boom side plate eb-boom-side-plate 2× 2 · part
6 Boom cylinder mount eb-boom-cylinder-mount 2× 2 · part
7 Arm cylinder mount eb-arm-cylinder-mount 1× 1 · part
8 Boom lifting eye eb-boom-lifting-eye 2× 2 · part
9 Boom tip boss eb-boom-tip-boss 2× 2 · part
10 Boom gusset eb-boom-gusset 6× 6 · part
11 Fastener Set fastener-set 1× 1 · part

Where the boom weldment is used

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

Used in 1 assembly

Excavator Boom

Sourcing: possible vendors

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 $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks