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Arm weldment

Assembly

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 assemblies.
Arm 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 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

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Build & assembly graph

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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

Where the arm 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