Should an Artillery Shell Box be chosen by shell count or weight?

Answer: By weight. Loaded weight sets handling, stacking and lifting; shell count only divides the cavity. One Artillery Shell Box body can serve four or six shells, but the dividers differ.

Does a five-layer stack need a thicker lid?

Answer: Not at 46 kg. The 550 kg design load already includes a factor of three, so 1.5 mm per metre is enough. Above 60 kg, an extra rib beats a thicker lid.

Can the pressure vent let water in?

Answer: No. The 0.35 bar cracking pressure is well above the 0.1 bar from 1 m of water. Leaks usually start at grit on the seal face.

EPE or EVA for dividers?

Answer: EPE recovers well and costs less, suiting frequent training use; EVA holds dimensions and resists tearing, suiting warehouse storage. Both cut at 12 mm.

How long does laser marking last outdoors?

Answer: Light polypropylene keeps half its contrast after eight years outside, still enough for a batch number. For constant sun, use an in-mould graphic.

How to Choose an Artillery Shell Box: Five Decision Points

Quick answer: Fix the loaded weight, then the cavity and dividers, then stacking, lifting, sealing and marking. Five checks in that order keep dimensions and structure aligned.

How Many Shells Fit in an Artillery Shell Box
Load Rating and Stacking Depth
Lifting Points and Fork Access
Sealing and Pressure Equalisation
Marking and Traceability
FAQ

1. How Many Shells Fit in an Artillery Shell Box

Start with loaded weight, not shell count: shell mass times quantity, plus case and insert. Under 25 kg one person carries it, under 50 kg two lift it, above 50 kg the Artillery Shell Box needs eyes or fork pockets.

The internal cavity sets the dividers. A 780 × 840 × 340 mm case gives about 720 × 760 × 300 mm inside. One shell per cell at 690 × 175 × 285 mm gives four cells across 700 mm, leaving 60 mm for dividers.

Shells	Cavity mm	Divider mm	Loaded kg
2	720 × 400 × 300	10	28
4	720 × 760 × 300	12	46
6	720 × 1120 × 300	12	64

Twelve millimetres is the usual divider thickness. Under 10 mm the panels bow at a 3 g lateral shock; over 16 mm the case carries one shell fewer. Keep 8 mm of side clearance so the load stays put.

2. Load Rating and Stacking Depth

A 46 kg Artillery Shell Box stacked five high puts 184 kg on the bottom unit; a factor of three gives a 550 kg design load. With a 4.2 m ceiling and 900 mm beam spacing, five layers fill one bay; at 3.2 m, only three will do.

Artillery Shell Box: cream-white case from above, rounded lid corners, one dark latch closed at left, hinge and handle at upper right

Lid flatness decides the rest: a dished lid leaves the upper case on four corners and local pressure multiplies. Hold 1.5 mm per metre and add a 3 mm step at each bottom corner. Polypropylene creeps at 40 °C, so past 30 days use 60 percent of the rated load.

Layers	Bottom load kg	Design load kg	Ceiling m
3	92	280	2.6 to 3.4
4	138	420	3.4 to 3.8
5	184	550	3.8 to 4.3

3. Lifting Points and Fork Access

Four M10 stainless eyes at 32 N·m carry the Artillery Shell Box on a 60 degree sling, where each leg sees about 0.29 of total weight. Open to 90 degrees and that rises to 0.35, so the eye and embedded nut go up a size.

Fork pockets 95 mm high and 120 mm deep take 125 mm forks. Four 12 mm wear ribs keep the base off the floor and clear of the side vent. Pockets must run through, or a blind one holds water and lifts the base panel.

Eyes on one side tilt the case past 15 degrees, squeezing the dividers. Lift lid up, four points loaded, never from the handle, rated at only twice the load.

4. Sealing and Pressure Equalisation

An 8.0 mm silicone cord in a 6.0 mm groove gives 25 percent compression, stable from -40 °C to 60 °C. Under 20 percent a rain test leaks; over 35 percent the cord takes a permanent set.

Across a 100 °C swing a case without a vent is held shut by vacuum, the gasket rolls and the rim cracks when pried. A 0.35 bar cracking pressure equalises without admitting water at 1 m for 30 minutes.

Artillery Shell Box: cream-white cases stacked five high on steel racking, each front with a handle and two side latches, concrete floor

Seal face flatness of 0.3 mm and flash of 0.15 mm are hard limits. Silicone suits cold, nitrile long road hauls to -25 °C. Replace the cord once recovery drops 15 percent after 300 cycles.

5. Marking and Traceability

Marking belongs on the body, not on a label that peels in transit. In-mould graphics do not lift, laser marking survives 500 wipes and stays readable for eight years, and stainless plates take 300 wipes over ten.

A 15 × 15 mm QR with a 0.4 mm module reads at 30 cm gloved. The chain must run from code to material batch, mould cavity, assembly station and inspection date; lose one link and traceability stops.

Conclusion

The order of the checks matters more than any single figure: loaded weight, cavity and dividers, stacking, lifting, then sealing and marking. Reverse it and the case ends up thick enough but too small for its shells. Run them once and the Artillery Shell Box dimensions, structure and interfaces align.

This article discusses only the container (case body) side of specifications and design intent, and does not cover any handling, loading or use of the contents.