If you are importing compact machinery from China, the single most expensive line on your quotation is usually container freight — and the fastest way to cut it is to load more machines per container. This guide explains how container loading actually works for tracked mowers, mini dump trucks, concrete mixers, skid steer loaders and cargo tricycles, and how to plan an order that fills a container efficiently.
Container sizes and internal dimensions
Freight is priced per container, not per unit, so the number of machines you can fit directly sets your per-unit freight cost. These are the internal dimensions to plan around:
- 20ft standard (20GP) — about 5.90 m long, 2.35 m wide, 2.39 m high; roughly 33 m³ of usable volume and a payload limit near 28 tonnes.
- 40ft standard (40GP) — about 12.03 m long, 2.35 m wide, 2.39 m high; roughly 67 m³ and a payload limit near 26 tonnes.
- 40ft high cube (40HC) — same footprint as the 40GP but about 2.69 m high; roughly 76 m³. This is the most common choice for machinery because the extra height clears roll bars and canopies.
Note the asymmetry: a 40ft container holds roughly twice the volume of a 20ft but costs far less than twice as much to ship. For machinery, a 40HC is usually the cheaper option per machine as soon as you have enough volume to fill it.
What actually determines how many machines fit
Volume is only the first constraint. In practice, four things decide the real count:
1. Whether the machine can be stacked
Compact tracked machines are heavy for their size, so stacking is rarely allowed. A tracked mini dump truck may weigh 700–1,000 kg in less than 1.5 m³ — stacking a second unit on top would crush the first and breach the container’s floor rating. Expect one layer for anything with a steel chassis.
2. Whether the machine fits through the door
A container door opening is narrower and shorter than the internal space — roughly 2.34 m wide and 2.28 m high on a standard 20ft. A machine that measures under the internal height can still be impossible to load if its roll bar or canopy pushes it past the door height. Folding or removable roll bars solve this, and are worth requesting at the quotation stage.
3. How well the units nest
Rectangular machines such as concrete mixers and skid steer loaders pack predictably. Irregular shapes — a tricycle with handlebars, or a mower with a wide cutter deck — leave voids that waste volume. Factory loading teams fill those voids with spare parts, tyres and accessories, which is one reason to order consumables in the same shipment.
4. The weight limit, not the volume limit
A 40ft container is legally limited to roughly 26 tonnes of cargo in most trades. Dense cargo such as concrete mixers or tricycles can hit the weight ceiling while the container is still half empty. If your order is heavy, plan on more containers than the volume maths suggests.
Rough loading estimates by product line
Use these as planning figures only — the factory confirms the final count after it has your exact models and configuration.
- Remote-controlled tracked lawn mowers (roughly 300–500 kg each): typically 8–14 units in a 40HC depending on cutter width and whether roll bars fold.
- Tracked mini dump trucks (roughly 700–1,100 kg each): typically 5–8 units in a 40HC; weight usually binds before volume.
- Tracked concrete mixers (roughly 500–900 kg each): typically 6–10 units in a 40HC.
- Skid steer loaders (roughly 900–1,500 kg each): typically 4–6 units in a 40HC.
- Cargo tricycles (roughly 300–600 kg each): these are the most variable — a 40HC may take 20–30 units when loaded in two tiers with careful chocking, or far fewer if the models are long-wheelbase dumpers.
How to plan an order that fills a container
The practical sequence that keeps freight cost per machine low:
- Start from the container, not the unit count. Decide whether you are shipping a 20GP, 40GP or 40HC, then ask the factory to quote the maximum units that model allows.
- Mix product lines deliberately. A container half-full of mowers leaves space that mixers or spare parts can fill. Mixed loads are normal for this trade and cost nothing extra in freight.
- Ask for a loading plan with dimensions. A reputable factory will send a sketch showing each unit’s position, plus the machine’s packed dimensions and weight. That document is what you check against before the container is sealed.
- Order spare parts and consumables in the same container. Filters, blades, belts, tyres and wear parts are light and fill voids that would otherwise ship as air.
- Confirm the door height against your tallest machine. If the roll bar has to be unbolted, ask who reassembles it and whether the tools are included.
Loading, securing and documentation
Machines are normally loaded with steel chocks, timber dunnage and heavy-duty lashing straps, and the containers are steel-strapped at the door. Ask for photographs of the sealed container and the loading process — this is standard practice and costs nothing.
Alongside the container you should receive the commercial invoice, packing list, bill of lading and any certificate of conformity that applies to your market. For buyers in the United States, that is typically the EPA certificate of conformity; for the European Union it is the CE marking and declaration of conformity.
Where freight cost is won or lost
Two levers matter more than anything else. The first is filling the container — a shipment that occupies 60% of a 40HC pays the same freight as one that fills it completely, so the unused 40% is pure cost. The second is choosing the right container size for your cargo weight: putting 20 tonnes of mixers into two 20ft containers can cost more than one 40HC, but exceeding a weight limit is not an option at all.
Get both right and freight drops from a large per-unit line item to a rounding error. That is why it is worth planning the load before you finalise the order, not after.
Frequently asked questions
How many remote-controlled lawn mowers fit in a 40ft container?
Usually 8 to 14 units in a 40ft high cube, depending on cutter width, engine size and whether the roll bar folds. The factory confirms the exact count from the models you order.
Is it cheaper to ship a 20ft or a 40ft container?
Per machine, a 40ft is almost always cheaper once you have enough cargo to fill it, because freight does not double with container size. A 20ft only wins when your total volume or budget is small.
Can you stack tracked machines in a container?
Normally no. Compact tracked machinery is dense and often exceeds 700 kg per unit, so stacking risks crushing the lower machine and overloading the container floor. Plan for a single layer.
What is the heaviest cargo a 40ft container can carry?
Roughly 26 tonnes of cargo in most trades, well below the container’s own structural limit. Heavy cargo such as concrete mixers can hit that ceiling while the container is still only partly full.
Do you provide a container loading plan before shipping?
Yes. We send a loading sketch with each unit’s position, packed dimensions and weight, plus photographs of the loaded and sealed container, so you can verify the shipment before it sails.
Planning an order and want a loading estimate for your exact models? Send us the models and quantities and we will quote the maximum units per container, along with packed dimensions and weights.
Related reading
- Landed Cost of Importing Machinery — FOB vs CIF, freight, duty and clearance broken down.
- How to Pay a Supplier Safely — T/T schedules, letters of credit and warning signs.
- CE Marking for EU Importers — Which rules apply and what must ship with the machine.
- 12-Point Pre-Shipment Checklist — What to verify before the container is sealed.
- Dump Truck vs Skid Steer Loader — Which machine your site actually needs.
- Machinery Import Documents — The complete document set and the mismatches that cause holds.