A five-step method for containerizing machinery: ① Container selection (20GP: ~28 CBM/28 tons; 40HQ: ~68 CBM; based on volume and weight); ② Disassembly and stowage planning (dismantle components + place center of gravity at the bottom); ③ Securing and lashing (steel cables/timber blocks/bracing; center the gravity); ④ Moisture protection (anti-rust treatment + desiccant + dunnage to elevate off the floor); ⑤ VGM declaration (report actual gross weight to prevent overloading)—loading quality determines transport safety (shifting and movement are the primary causes of damage).
I.
Container Selection and Stowage Planning
Container Types: 20GP (~28 CBM/28 tons, for heavy cargo); 40HQ (~68 CBM/26 tons, for light/bulky cargo); Stowage: Center the gravity and place heavy items at the bottom (to prevent tipping); Disassembly: Dismantle booms, work platforms, or outer casings for loading (pack as separate components); Irregular Shapes: Use Flat Rack or Open Top containers for oversized (extra-wide/extra-high) cargo—select containers based on the three factors of volume, weight, and dimensions (incorrect selection leads to wasted freight costs or an inability to load the cargo).
II. Securing and Lashing
Base Mounting: Weld or bolt the equipment to the pallet or base; Lashing: Tighten using steel wire ropes and turnbuckles (4–8 diagonal points); Wedging: Insert wooden wedges under wheels or the base (to prevent rolling); Bracing: Provide top or lateral bracing to prevent tipping; Cushioning: Fill gaps with foam or wooden strips—lashing points must connect to the container’s structural members (not just the wooden crate), as shifting due to ocean motion is a primary risk.
III.
Protection and Moisture Control
Rust Prevention: Apply anti-rust oil or cover with plastic film; Moisture Control: Use desiccants (silica gel) and humidity indicator cards; Dunnage: Elevate equipment at least 10 cm off the floor (to prevent damage from bilge water or condensation); Electronics: Use sealed, shock-proof packaging; Marking: Clearly mark the center of gravity, lifting points, and “Do Not Invert” warnings—high-humidity maritime environments (condensation) mean inadequate moisture protection leads to immediate rusting upon arrival.
IV.
VGM and Compliance
VGM Declaration (Verified Gross Mass: cargo weight + container weight; overweight leads to shipment refusal or fines); Overweight Surcharge (Triggered when VGM exceeds 25–28 tons); Dangerous Goods (Hydraulic oil and batteries require DG declaration); Documentation: Detailed packing list (weight and dimensions of each item)—inaccurate weight or DG declarations result in cargo seizure and fines (mandated by international conventions).
V. Notes for Overseas Buyers
Key considerations include: requesting photos/videos of the loading process (documenting lashing and securing); ensuring clear shipping marks (destination port, container number, and package number); requiring proper lashing (performed by a professional loading team); securing insurance (marine insurance covering loading and unloading); and inspecting the container upon arrival (taking photos before opening to document potential claims).
This creates a closed-loop process for machinery loading—covering container selection, disassembly and stowage planning, lashing and securing, moisture protection, and VGM verification—while the combination of documented lashing and insurance ensures peace of mind upon arrival.
