
When dealing with oversized or heavy shipments originating from China—be it industrial machinery, bulk goods, or large furniture—the complexity increases dramatically compared to standard small-package delivery. From securing the right transport mode to handling customs, every step demands precision and expertise. At Shenzhen Guanwutong, we make this process seamless, cost-effective, and reliable.
Defining Heavy & Oversized Cargo
In most international logistics contexts, a shipment is considered heavy when it exceeds 70 kget oversized when any dimension is greater than 1.2 meters or the volume exceeds 1 cubic meter. Examples include crates, machinery, or household appliances.
As TNT notes, parcels over 23 kg require special handling, and items over 500 kg or unique dimensions demand specialist logistics planning.
Choosing the Optimal Transport Mode
Choosing wisely between sea, air, rail, or DDP services can drastically impact cost and delivery time:
- Fret maritime (FCL/LCL): Best suited for large, non-urgent loads. FCL ensures container exclusivity; LCL is ideal for smaller heavy loads sharing container space.
- Fret aérien: Fastest option when speed outweighs cost—valuable for urgent or time-sensitive goods.
- Rail/Truck Freight: Efficient for regional heavy cargo requiring direct land-based transit.
- DDP (Delivered Duty Paid) (livrés droits acquittés): Ideal for clients needing hassle-free delivery—Guanwutong handles customs and final-mile delivery.
Packaging & Load Securing Essentials
Proper packaging transcends protection—it ensures cargo arrives intact:
- Use sturdy wooden crates or pallets matched to the cargo size.
- Apply load securing methods, like strapping or dunnage, to prevent shifting during transport.
- Label “HEAVY” if over 23 kg to prompt safe handling.
Estimating Costs: Weight, Volume & Distance

Shipping charges for heavy items often base on whichever is greater—actual weight or dimensional weight:
- Fret maritime typically costs $100–$300 per CBM for LCL, much lower for FCL deals.
- Air freight ranges between $5–$15 per kg depending on route and urgency.
- DDP pricing varies; Guanwutong provides tailored quotes covering porte à porte service.
Critical Documentation & Customs Compliance
Delayed customs clears often stem from improper documentation. For heavy items, ensure:
- Accurate Commercial Invoice, Packing Listet Bill of Lading/Airway Bill.
- Proper HS coding and origin declarations for tariffs.
- Any required import permits or certificates for regulated goods.
We help verify and prepare all paperwork to prevent customs delays.
Safety, Insurance & Project Logistics
Heavy shipments pose unique risk profiles:
- Offer cargo insurance covering damage, theft, or loss during transport—highly recommended.
- Provide specialized trucking or rail transport equipment for delicate or structure-laden cargo.
- For industrial or project cargo, our capabilities mirror those of specialist carriers like VARAMAR.
Real-World Scenario: Machinery Transport
A manufacturing client needed to ship a 1.5-ton machine from Shanghai to South Africa.
Our Solution:
- Provided custom crate with reinforced steel frame.
- Secured cargo with load-bearing straps and airbags.
- Arranged FCL sea freight, insured, and processed DDP customs.
- Final delivery to a factory with specialized lift equipment.
Outcome: Safe delivery, zero damage, and optimized cost through consolidation and DDP.
Why Partner with Guanwutong for Heavy Cargo
Bénéfice | Description |
Multimodal Expertise | Flexibly combine air, sea, rail, or DDP |
Packaging Optimization | Tailored wooden crates and secure loads |
Full Documentation & Clearing | End-to-end customs processing |
Value-Driven Logistics | Competitive pricing, minimized lead times |
Project Cargo Solutions | Heavy-lift, remote delivery, specialized tools |
Conclusion
Shipping heavy items from China doesn’t have to be complex. With precise packaging, smart mode selection, customs expertise, and full logistics support, Guanwutong turns potential headaches into smooth, reliable experiences for your business.
Contact us today for a tailored shipping plan—heavy load? No problem.