Reference
20' Bulk
Roof hatches for dry bulk. Full internal dimensions, door opening, capacity and weights below.
- Inside length
- 5.934 m
- Inside width
- 2.358 m
- Inside height
- 2.340 m
- Door width
- 2.335 m
- Door height
- 2.292 m
- Capacity
- 32 m³
- Tare weight
- 2450 kg
- Max cargo weight
- 21550 kg
About the 20' Bulk
A twenty-foot closed shell fitted with loading hatches in the roof, and normally a discharge arrangement at the door end.
Free-flowing dry bulk is gravity-loaded through the roof hatches and then either tipped out on a tilting chassis or discharged through hatches at the far end. That avoids bagging the cargo, or fitting and then disposing of a liner bag in a standard box.
Because bulk cargo is dense, the payload limit is reached long before the container looks full. Weight, not volume, is what governs how much can be loaded.
What it carries
How it is built
- A dry-box shell with round loading hatches cut into the roof, spaced along the centre line.
- Discharge hatches at the door end, or provision for the whole unit to be tipped on a tilting chassis.
- Walls reinforced to take the lateral pressure a bulk load exerts once the box is full.
- Three loading hatches in the roof, each roughly 455 mm across and set about 1.83 m apart centre to centre.
- Two discharge hatches at the door end, sometimes fitted with short tubes to guide the cargo out; alternatively unloading hatches are mounted in the doorway itself.
- Lashing rings in the top side rails, and forklift pockets on some units, so the container still works as an ordinary box for general cargo.
Why it is used
- Removes the cost and labour of bagging cargo, or of fitting a liner bag into a standard box.
- Gravity loading through the roof and rapid discharge at the far end cut terminal time.
- Outside of bulk service the unit still works as an ordinary closed container.
What to check before booking
- Only suits genuinely free-flowing cargo; anything that bridges or cakes will not discharge cleanly.
- Cargo weight is reached well before the box is visually full, so payload governs rather than volume.
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