Which Gear Case configuration comes first for outdoor work?

Answer: The corner and the insert: a 1.1 m impact lands on a corner, so a double wall with an R12 radius pays first.

Why not one solid foam block for field service?

Answer: The tempo. Tighter pockets slow the count-back; a 55 mm tray lifts out whole.

Does water work need IP68?

Answer: Only where it can be briefly submerged. Splash is IP67; over the side needs IP68 and a 0.35 bar valve.

What body suits a snowfield at -30 °C?

Answer: PP or modified PP, not standard PC, proven by a 1.2 m corner drop after four hours at -30 °C.

Can a photo case and a repair case share one body?

Answer: The body yes, the insert no: a 10 mm lid pad suits lenses, a thin tray suits tools.

Gear Case Applications: Six Sites, Six Configurations

Quick answer: A Gear Case is configured by four numbers taken from the job, not the industry name: drop height, immersion depth, temperature range and lid cycles per day. Settle those four and the rest follows.

Six Work Scenarios a Gear Case Has to Cover
Outdoor Work versus Field Service
Water, Diving and the Sealing Rules
Cold Slopes and Hot Vans
Photo, Video and Emergency Repair
FAQ

1. Six Work Scenarios a Gear Case Has to Cover

Selection starts from a threat list, not an industry name. A Gear Case that lasts five years on a service truck seizes its latches in three months on an island. Four numbers decide it: drop height, immersion depth, temperature and lid cycles.

Impact rules outdoor and repair work, immersion water work, embrittlement alpine work, vibration photo work. Table 1 pairs site and configuration.

Site	Threat	Insert	Carry
Outdoor	1.1 m drop	PE foam	Strap
Service	Oil, cycles	Trays	Handle
Water	Salt	EVA	Tie-down
Alpine	Cold	Moulded EVA	Panel
Photo	Vibration	Foam	Trolley
Repair	Time	Pull-out tray	Wheels

IP67 means one metre of water for thirty minutes; IP68 leaves depth and duration to the maker, commonly 1.5 m for sixty minutes.

2. Outdoor Work versus Field Service

An outdoor Gear Case must survive being dropped. Sliding off a tailgate lands the impact at about 1.1 m, almost always on a corner, where a double wall and an R12 radius cut the stress peak by thirty percent. A 30 kg/m³ PE insert cut with 3 mm interference stops tools lifting the foam out.

Gear Case: olive green corner close up, one wide ribbed cam latch over the lid seam, hook seated in a side pocket, matte texture

Field service runs forty lid cycles a day with oily gloves. Latch effort belongs between 60 and 90 N: below that a tool bag flicks it open, above it a gloved thumb fails. Trays 55 mm deep leave 40 mm above for long bars, though one case serving both ends up with loose pockets and shallow trays.

3. Water, Diving and the Sealing Rules

On water the variable is temperature and salt, not pressure. Moving from a 35 °C deck into 12 °C water drops internal pressure by about 8 kPa, so the lid needs a purge valve set at 0.35 bar; prying it open rolls the gasket out of its groove.

An empty 6.8 kg case with 22 L of volume, filled with metal parts, is denser than water; sealing only slows the leak.

Salt spray is checked at 48 hours neutral: 304 pins hold, carbon steel seizes in three months and effort climbs from 70 N to 130 N. Tie-downs take 2.5 kN.

4. Cold Slopes and Hot Vans

Cold damages mouldings by embrittlement. PP keeps its toughness at -20 °C but cracks radially at -30 °C, and PC loses sixty percent of its notched impact strength. Accept a Gear Case only after four hours at -30 °C and a 1.2 m corner drop.

Gear Case: olive green body with dark grey foam, flat pad inside the lid, base cut for a round reel, coiled strap and fabric pouch

Heat is often skipped. A closed van reaches 65 °C, a dark case runs 12 °C hotter than a pale one in sun, and black foam adds 5 °C. A pale body with an aluminised liner lowers that peak; a thicker wall only delays it.

5. Photo, Video and Emergency Repair

Photo fixing is about return accuracy: a pocket 2 mm larger than the barrel, 8 mm of foam beneath, a 10 mm lid pad above.

Repair work needs one hand. A 75 mm wheel clears a 15 mm threshold where anything under 60 mm jams on gravel.

Carry	Limit	Access	Site
Handle	18 kg	Stairs need two	Outdoor
Top handle	12 kg	Narrow aisles	Field service
Panel	15 kg	Long walks	Alpine
Trolley	30 kg	Hard floors	Photo
Wheels	25 kg	Thresholds	Repair

A photo case can afford a thick wall; a repair Gear Case cannot, since every kilogram shortens a day of range.

Conclusion

Configure from the site and the site limits the configuration: a trolley moves the centre of gravity back, a harness forces a thinner wall. Write those four numbers down as acceptance figures and the rest stops arguing. Where a Gear Case is used is written in the threat list of a site, not in a catalogue.

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.