Is an IPX6 rating enough for a Waterproof rolling equipment case?

Answer: Rain and washdown stop at IPX6; standing water needs IPX7 too.

Why use a logger for immersion?

Answer: Paper says wet or dry; a logger shows how much entered and where.

Does every case do the 8 km walk?

Answer: No. It is a type test per design; production runs three cases for 2 km.

What do 3000 handle cycles represent?

Answer: Two years of packing, with failures usually after cycle 1500.

Is salt spray on hardware alone acceptable?

Answer: Yes, since the body is not sprayed; 72 hours judges latches and hinges.

Waterproof Rolling Equipment Case Acceptance: Items and Verdicts

Quick answer: A Waterproof rolling equipment case is accepted in three layers: ingress rating, wheels and handle, then a batch seal re-check. IPX6 runs 3 minutes at 100 kPa through a 12.5 mm nozzle; IPX7 sits 1 m deep for 30 minutes and passes at 50 percent RH; an 8 km walk over 200 kerbs allows 1.5 mm of tread loss.

How Acceptance Is Layered
Ingress Testing: Jets and Immersion
Walk, Wheel and Handle Trials
Seal Structure and Batch Re-Checks
Sampling, Marking and Lot Verdicts
FAQ

1. How Acceptance Is Layered

A Waterproof rolling equipment case is judged by consequence, then by sampling. Class A is outright failure: torn gasket, through-wall crack, cracked wheel boss, seized handle. Class B is service life: mist inside, wandering wheels, weak latch hold; class C is appearance.

One class A failure holds the lot, while B runs at AQL 1.5 and C at AQL 4.0 on level II, so a 500-unit lot draws 50. Those numbers belong in the contract annex.

Class	Items	Sampling	Verdict
A	torn gasket, crack, cracked boss	full	zero tolerance
B	mist inside, wheel drift, weak latch	AQL 1.5	Ac 2 Re 3
C	scratches, colour drift, print offset	AQL 4.0	Ac 5 Re 6

2. Ingress Testing: Jets and Immersion

Both digits must be declared. IPX5 and IPX6 are jets, IPX7 is immersion, and a case marked IPX6/IPX7 has to pass both; a jet says nothing about standing water.

Waterproof rolling equipment case: closed grey case on a galvanised roller conveyor, an open truck body at left, orange racking far right, daylight

Conditions go into the sheet: IPX5 runs a 6.3 mm nozzle at 30 kPa, 12.5 L per minute, 2.5 m away, one minute per face; IPX6 runs a 12.5 mm nozzle at 100 kPa for three minutes on a turntable at 1 rpm. Latches closed, purge valve shut.

A Waterproof rolling equipment case is judged on data during immersion: a logger inside, 1 m deep for 30 minutes, passing at 50 percent RH or less within two hours with no water mark inside.

Test	Condition	Verdict
IPX5 jet	6.3 mm, 30 kPa, 2.5 m, 1 min per face	no water mark
IPX6 jet	12.5 mm, 100 kPa, 3 min	no water mark
IPX7	1 m deep, 30 min	50 percent RH or less

3. Walk, Wheel and Handle Trials

For a Waterproof rolling equipment case, the walk covers 8 km of concrete with 200 kerbs of 20 mm and 50 thresholds of 35 mm. Four numbers decide it: tread loss under 1.5 mm, bearing rise under 15 K, boss bolts at 6 N·m, drift under 20 mm per 10 m.

The handle takes 3000 cycles at 100 N over 1050 mm, then 500 N held 60 seconds with set under 2 mm. A tumble of 50 turns at 5 rpm closes the sequence, since bumpers and bosses fail first.

4. Seal Structure and Batch Re-Checks

The gasket is EPDM at 70 Shore A in a 6.5 mm by 5.0 mm groove at 30 percent compression. Corners are moulded whole, never joined, since a joint is the usual entry point.

Waterproof rolling equipment case: close-up of a navy case side, one engaged latch, a seal line along the lid seam, grainy texture, airport seats behind

On a Waterproof rolling equipment case, hinge pins carry O-rings and screw holes stay blind. Each batch re-checks three cases in 0.5 m of still water for two hours, plus one case at 72 hours of neutral salt spray.

5. Sampling, Marking and Lot Verdicts

Marking carries the ingress rating, rated load and an eight-digit lot code that survives 100 strokes of a 500 g eraser. Rating and load appear together, or a Waterproof rolling equipment case travels as ordinary cargo.

At 500 units and 50 samples, one class A failure holds the lot, B is Ac 2 Re 3 and C is Ac 5 Re 6. Reworked lots take a suffix, double sampling and one more immersion run.

Lot	Sample	B	C
151 to 280	32	Ac 1 Re 2	Ac 3 Re 4
281 to 500	50	Ac 2 Re 3	Ac 5 Re 6
501 to 1200	80	Ac 3 Re 4	Ac 7 Re 8

Conclusion

Acceptance turns three questions into numbers: does water get in, do the wheels roll, and can the lot be traced. Declare both digits, fix the walk and handle conditions, and put sampling and verdicts in the contract annex. A Waterproof rolling equipment case that answers all three on paper passes on the bench.

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.