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Packaging Design｜Transport packaging engineering

From equipment center of gravity to site unload — engineer transport risk into packaging

Custom packaging for mass, CG, route, climate and delivery mode — skids, frames, moisture, shock, fixation, marking and release documentation.

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Transport path & risk input map

  1. Factory outbound forklift handling
    Ex-factory Threshold / forklift
  2. Road transport of heavy module
    Road transport Vibration / braking / decel
  3. Port crane and forklift handling
    Port handling Crane / vessel loading
  4. Shipping container for transport
    Container transport Size / securing
  5. Ocean freight vessel environment
    Ocean environment Temp / salt spray / climate
  6. Long-term crate storage
    Long-term storage RH / stacking
  7. Destination port unloading
    Destination unload Crane / forklift
  8. Site unload passage handling
    Site unload path Tilt / turn / handling

Tianchu packaging — multi-ton ESS cabinet exploded view

  • Surface / opening protection Low-temp PE wrap on openings and arms — scratch and contamination barrier
  • Moisture barrier Laminated barrier film + seal to block moisture ingress
  • Cushion / isolation EPE fill / honeycomb / rubber pads absorb shock and vibration
  • Edge & corner guards Corrugated or steel corner guards protect edges and trim
  • Restraint & fixation Kevlar ties / corner buckles limit equipment shift
  • Base interface Steel skid with timber, fork pockets and lift design
  • Outer crate / frame Metal or timber frame — high strength and stackability
  • Lift & center of gravity Lift points, CoG, dunnage and anti-tip structural provisions
  • Marking system Clear CoG / lift / dunnage / lash / shock marks
Multi-ton ESS cabinet packaging exploded view

Packaging interface & BOM (excerpt)

No.ComponentMaterial / specFixingFunction
1Surface filmPE film 50 µmTapeScratch / contamination
2Al-foil bagAl laminate 120 µmHeat seal + tapeMoisture & air barrier
3Cushion layerEPE 50 mm / honeycombStrap / tapeShock isolation
4Corner guardsCorrugated 65×65 mmStrap + buckleCorner crush
5Restraint lineKevlar + hooksBoltedLateral shift limit
6Base membersSteel + timberBolt + weldVertical restraint
7Base frameQ235 frame + timberBolt + lockLoad / fork / lift
8Lift frameSteel load structurePin + cornerCompression / shear
9Marking setWeather labels / indicatorsRivetInformation

Surface & interface protection (zero-damage arrival)

Seven zones that commonly fail in transit

  • Door lock / panel protection (demo)
    Door lock / panel PE pad + foam gasket
  • Vent / louver protection (demo)
    Vent / louver Full-width film + breathable film
  • Inlet/outlet port protection (demo)
    Inlet / outlet / catalyst Port cover + bubble wrap
  • Liquid flush port protection (demo)
    Flush ports Blank plate + shock paper
  • Lock / HMI protection (demo)
    Locks / HMI Soft film + cover plate
  • Nameplate / magnet area protection (demo)
    Nameplate / magnet Clear film + mask
  • Loose small parts kit protection
    Loose small parts Individual bags + secure

Moisture & corrosion control

Control targets, condensation case and opening procedure

Control target < 60% RH (inside pack)

Barrier Al-foil laminate 120 μm sealed
Desiccant Mineral desiccant 8 kg
Rust protection Full VCI wrap / isolate contact
Monitoring HIC humidity card present
Sealing Heat seal + tape reinforce
Drain / vent Base drain + controlled vent

Condensation case (sea route)

Max avg outside temp 35 °C
Days in container 30 days
Internal volume 12.5 m³
Max allowed RH 60%
Condensation risk Low
Desiccant mass required 8 kg (this scheme)

Opening procedure (avoid condensation backflow)

  1. 1. Unload & settle Keep sealed 12–24 h
  2. 2. Inspect / seal check Check seals & status
  3. 3. Temperature balance Gradual air equalize
  4. 4. Open & inspect Remove protection

Cushioning, isolation & restraint fixation comparison

Schemes A–D by route severity

Scheme typeRouteCushion materialLateral restraintTop restraintReusableStabilityOPEX
A Paper-wood + timber base (export) Sea + road EPE + honeycomb Corrugated + side brace Frame + tie rod Partial Med
B Reusable frame + timber base Multimodal Honeycomb + EPDM Roller frame Tie rod + top brace High Med-high
C Steel base + wooden crate (export) Sea (general) EPE + rubber pad Panel frame + bolt Lid + tie rod Low Low
D Direct in-container securing Rail / road Rubber-plastic + thin pad L-bracket + side brace Top lash Med Med
  • Scheme A timber crate packaging (demo)
    Scheme A
  • Scheme B reusable steel frame packaging (demo)
    Scheme B
  • Scheme C steel-base wooden export crate (demo)
    Scheme C
  • Scheme D in-container direct securing (demo)
    Scheme D

Base interface & lifting scheme

  • Forklift interface

    Cabinet skid forklift pocket interface (demo)

    Rated capacity ≥ 8,000 kg

    Fork pocket size

    • Clear width ≥ 300 mm
    • Clear height ≥ 95 mm
    • Center distance 1,000 mm

  • Lifting interface

    Four-point lifting sling diagram (demo)
    Lift points
    4 points
    Point rating
    7,500 kg / pt
    Recommended gear
    Sling + shackle
    Lift angle
    < 60°

  • Orientation & CoG

    Upright cabinet orientation for CoG (demo)
    CoG mark
    CoG 1,120 mm

    No side forking

  • Marks & cues

    • Do not invert
    • Do not roll
    • This side up
    • CoG mark
    • Road transport
    • Shock indicator (15g)
    • Tilt indicator (15°)

  • Safe work zone

    Lifting safety exclusion zone diagram (demo)

    Lift safety radius

    R ≥ 3 m

    (or max unit height + 1 m)

    No personnel entry

Accessories & documents — independently protected

Accessory corridor plus host-config match list

Accessory corridor

  • Keys / locks
  • Cables / jumpers
  • Spares kit
  • Tools
  • Manuals
  • Commission pack

Host configuration match list

ItemHost configPack locationCheck
Door key setCabinet A/BDocument pouch✓
HV jumperPCS interfaceCable crate✓
Spare filtersHVAC optionParts box✓
OM manualLanguage packWaterproof bag✓
FAT reportSerial linkedUSB + paper✓

Route-specific packaging variants & change impact

Dual tables — variant contrast and change assessment example

Route packaging variants

RouteSchemeMoistureLashNotes
Domestic roadBLight2-ptShort haul
Export seaCFull VCI4-pt20GP dual
Rough multiDFull + HICSteelExtra brace

Change impact assessment (example)

ChangeStructureTestDocsRisk
Mass +8%Skid re-rateShock re-runRev bumpMed
Add 40HCGap fill kitStow trialLoad planLow
Drop scheme C→BLess foamHumidity watchECOHigh

Duty simulation & design check

Six pass cards

  • Beam strength PASS Skid bend
  • Restraint shock PASS 5g pulse
  • Crate compression PASS Stack load
  • Lifting PASS Eye / fork
  • Container floor PASS Point load
  • Anti-tip PASS 15° static

Quality & transport validation plan and results

  • Stacking test
    Wooden shipping crate stacking test (demo)
  • Forklift handling
    Forklift handling of wrapped pallet load (demo)
  • Lifting test
    Cabinet lifting with yellow straps (demo)
  • Tilt test
    Cabinet tilt stability test platform (demo)
  • Vibration (road)
    Road vibration spectrum chart (demo)
  • Shock test (15g)
    Shock acceleration pulse chart 15g (demo)
  • Rain test
    Rain spray chamber test (demo)
  • Damp heat exposure
    Damp heat climate chamber exposure (demo)
  • Compression (enclosure)
    Enclosure panel compression test (demo)
  • Container loading
    Dual cabinets container loading test (demo)

Uncrate & destination acceptance

Eight gates from arrival to clear-to-install

  • Arrive log Photo · seal ID
  • Outer inspect Damage map
  • HIC / RH Card read
  • Equalize Crack · wait
  • Open sequence Layer order
  • Interface check Caps · ports
  • Accessory kit Match list
  • Clear install Sign-off

Packaging design release governance

  • Design files GA / exploded / structure
  • Materials & specs Material list / BOM
  • Packaging work instructions Assembly steps / key points
  • Inspection & judgement Size / appearance / load
  • Change control Spec / destination changes
  • Configuration match Host & accessories aligned

Design readiness checklist

  • Packaging spec locked
  • Manual complete
  • Packaging scheme confirmed
  • Review signed off