Two-Level Body Structure
AssemblyAn integral (chassisless) welded frame of square-section steel or bonded aluminum, where the lower-deck pillars and upper floor form a single load path holding the laden tilt angle past 28 degrees. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Two-Level Body Structure parts and their functions
7 top-level parts · 21 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Underframe | 1× | Welded base structure carrying axles, drivetrain, and the lower floor at around 320 mm entry height. |
| 2 | Body Pillar Set | 1× | Vertical square-tube pillars at each window bay carrying the upper deck and roof loads. |
| 3 | Upper Floor Deck | 1× | Stressed floor platform that doubles as the structural tie between left and right walls. |
| 4 | Roof Structure | 1× | Light hooped roof framing designed to survive the ECE R66 rollover test. |
| 5 | Sheet Metal Panel | 12× | Exterior skins |
| 6 | Window Set | 1× | Bonded tinted side glazing on both decks plus the upper-deck front screen. |
| 7 | Fastener Set | 4× | Bolts, nuts, and washers. |
3D model
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Build & assembly graph
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Bill of materials for Two-Level Body Structure
7 top-level lines · 7 rows shown · 21 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Underframe | double-decker-bus-underframe | 1× | 1 | · | part |
| 2 | Body Pillar Set | double-decker-bus-pillar-set | 1× | 1 | · | part |
| 3 | Upper Floor Deck | double-decker-bus-upper-floor-deck | 1× | 1 | · | part |
| 4 | Roof Structure | double-decker-bus-roof-structure | 1× | 1 | · | part |
| 5 | Sheet Metal Panel | sheet-panel | 12× | 12 | · | part |
| 6 | Window Set | double-decker-bus-window-set | 1× | 1 | · | part |
| 7 | Fastener Set | fastener-set | 4× | 4 | · | part |
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Where the two-level body structure is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed 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 $0.50–$200. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| bharatforge.com ↗ | Pune, IN | Forgings & metal parts | 500 pcs | 6–10 wks |
| dicastal.com ↗ | Qinhuangdao, CN | Aluminium castings & wheels | 500 pcs | 6–10 wks |
| tataautocomp.com ↗ | Pune, IN | Auto components | 500 pcs | 6–10 wks |
|
🇸🇬Beyonics
beyonics.com ↗
|
Singapore | Precision metal & mfg | 500 pcs | 6–10 wks |
| sundaram-clayton.com ↗ | Chennai, IN | Die castings | 500 pcs | 6–10 wks |