Main Boom

Assembly

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Primary articulation arm, pinned at base and to knuckle joint, tapered tube construction.

Direct parts	6
Total parts	11
Used in	1 assembly
Class	Assembly

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Primary articulation arm, pinned at base and to knuckle joint, tapered tube construction. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Main Boom parts and their functions

6 top-level parts · 11 parts in total · full bill of materials below

Main Boom parts diagram: 1 boom tube, 2 boom pivot pin, 3 boom lift cylinder, 4 boom brace, 5 ball bearing, 6 o-ring set. 11 parts in 6 top-level items. — Main Boom 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	Boom Tube	1×	Tapered steel tube, 150–80 mm diameter
2	Boom Pivot Pin	1×	Thrust bearing pivot
3	Boom Lift Cylinder	2×	Hydraulic lift actuators
4	Boom Brace	2×	Internal diagonal bracing tubes
5	Ball Bearing	4×	Pivot support at base and knuckle
6	O-Ring Set	1×	Cylinder rod seals per joint

3D model

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Build & assembly graph

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Bill of materials for Main Boom

6 top-level lines · 6 rows shown · 11 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Boom Tube	knuckle-boom-marine-crane-boom-tube	1×	1	·	part
2	Boom Pivot Pin	knuckle-boom-marine-crane-boom-pin	1×	1	·	part
3	Boom Lift Cylinder	knuckle-boom-marine-crane-boom-hoist-cylinder	2×	2	·	part
4	Boom Brace	knuckle-boom-marine-crane-boom-brace	2×	2	·	part
5	Ball Bearing	ball-bearing	4×	4	·	part
6	O-Ring Set	oring-set	1×	1	·	part

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Where the main boom is used

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

Marine 1 Marine Knuckle Boom Crane

Used in 1 assembly

Marine Knuckle Boom Crane

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