Arm weldment

Assembly

No photo yet. Seen one of these? Suggest a photo.

Straight welded box-section stick carrying the boom joint, bucket cylinder mount, and bucket pivot at the tip.

Direct parts	8
Total parts	14
Used in	1 assembly
Class	Assembly

Report a problem with this BOM

Straight welded box-section stick carrying the boom joint, bucket cylinder mount, and bucket pivot at the tip. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Arm weldment parts and their functions

8 top-level parts · 14 parts in total · full bill of materials below

Arm weldment parts diagram: 1 arm box section, 2 arm boom boss, 3 arm bucket boss, 4 arm cylinder rod lug, 5 bucket cylinder mount, 6 arm side plate, 7 arm gusset, 8 fastener set. 14 parts in 8 top-level items. — Arm weldment parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Arm box section	1×	Main box girder
2	Arm boom boss	2×	Boom joint pin bosses
3	Arm bucket boss	2×	Bucket pin bosses
4	Arm cylinder rod lug	1×	Arm cylinder rod-end lug
5	Bucket cylinder mount	1×	Bucket cylinder base mount
6	Arm side plate	2×	Web side plates
7	Arm gusset	4×	Internal stiffening gussets
8	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

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 Arm weldment

8 top-level lines · 8 rows shown · 14 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Arm box section	eb-arm-box-section	1×	1	·	part
2	Arm boom boss	eb-arm-boom-boss	2×	2	·	part
3	Arm bucket boss	eb-arm-bucket-boss	2×	2	·	part
4	Arm cylinder rod lug	eb-arm-cyl-rod-lug	1×	1	·	part
5	Bucket cylinder mount	eb-bucket-cylinder-mount	1×	1	·	part
6	Arm side plate	eb-arm-side-plate	2×	2	·	part
7	Arm gusset	eb-arm-gusset	4×	4	·	part
8	Fastener Set	fastener-set	1×	1	·	part

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

Where the arm weldment is used

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

Construction & Earthmoving 1 Excavator Boom

Used in 1 assembly

Excavator Boom

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 $0.50–$100. How estimates work

Vendor	HQ	Specialty	MOQ	Lead 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