Why is a metal tool chest in a repair bay twice as wide as a line-side unit?

Answer: Different jobs. The bay unit is a bench holding assemblies, so width buys surface; the line unit carries the shift's tools.

How many line-side units does one line need?

Answer: One per four to six stations, another past 15 m of spacing; too few means 40-second walks.

Should a spare-part cabinet have wheels?

Answer: Usually not. It is anchored at 300 kg, and wheel frames steal drawer depth; choose castors only where the zone moves often.

Does an outdoor site need stainless steel?

Answer: Not necessarily. A 480-hour coating with drain holes covers most sites; stainless doubles the cost, so reserve it for coastal work.

Can a lab use a standard metal tool chest?

Answer: It should not. Grease-packed slides fail cleanroom checks and wheels mark PVC flooring; specify oil-free slides.

Where a Metal Tool Chest Earns Its Place: Five Site Setups

Quick answer: Four variables set the build of a metal tool chest: aisle width, travel per shift, heaviest tool, and the medium. Repair bays want width; lines want narrow bodies.

Where the Application Decides the Configuration
Auto Repair Bays: 1200 mm Bodies and 30 mm Tops
Production Lines: 450 mm Width and 75 mm Wheels
Spare-Part Stores: 1800 mm Cabinets and Label Slots
Outdoor Sites and Labs: Two Opposite Builds
FAQ

1. Where the Application Decides the Configuration

A repair bay runs a metal tool chest for three years while a lab kills it in three months, and the difference is the site, not the quality. Aisle width comes first: under 700 mm, only a 450 mm body fits.

Travel per shift decides the wheels: one moved twice a day needs oil-resistant tread, one following a line for 300 m needs low wheels. Heaviest tool sets slide width.

Variable	Break point	What it changes
Aisle width	700 mm	450 mm or 600 mm body
Travel per shift	300 m	75 mm or 125 mm wheels
Heaviest tool	30 kg	35 mm or 53 mm slides
Medium	Oil, salt, cleanroom	Coating grade

2. Auto Repair Bays: 1200 mm Bodies and 30 mm Tops

In a repair bay a metal tool chest is a mobile bench: 1200 by 600 mm at 950 mm high, with a 30 mm hardwood top or a 1.5 mm stainless wrap. An 80 kg top pushes the sides to 1.0 mm, or the drawers bind.

The bottom two drawers take sockets and air tools at 60 kg on 53 mm slides; openings pass 120 a day, so slides start at 50,000 cycles.

Wheels carry the duty: 125 mm polyurethane, four total-lock brakes, a 20 mm oil lip. A shared bay needs three-point locking at 480-hour salt spray, since one lock cannot clamp a 1200 mm body.

3. Production Lines: 450 mm Width and 75 mm Wheels

A line-side metal tool chest is a different product: 450 by 500 mm at 800 mm high, four drawers, 75 mm wheels, because aisles run near 700 mm and a low chest clears conveyor legs.

Passing and stopping matter more than capacity: two wheels brake, so one foot pins the chest, and a 900 mm handle lets a standing operator pull it. A 25 mm lip keeps a wrench in when the chest jolts.

These stay unlocked or take a single cam lock: the drawers hold the shift's gauges. An 0.8 mm body is enough, but corners need an R3 radius.

4. Spare-Part Stores: 1800 mm Cabinets and Label Slots

A store turns the logic to space: a metal tool chest 1800 mm high, eight drawers and two shelves, 300 kg rated on a 1.2 mm base, on fixed feet with an anti-tip bracket.

Cut 50 by 20 mm slots for replaceable cards, keep A-class spares between 900 and 1400 mm, and leave 800 mm in front for drawer travel.

No wheels, but a lock: one key per cabinet, numbered at the side. A 45 mm slide is enough, and full extension beats three-quarter for the innermost bin.

5. Outdoor Sites and Labs: Two Opposite Builds

Outdoors a metal tool chest fights water, grit and swing: 150 mm rubber wheels, 480-hour salt spray, two 8 mm drain holes, and a build checked from minus 20 to plus 55 degrees. Levelling bolts of 15 mm hold it on a slope.

A lab asks the reverse: 304 stainless, brushed; oil-free slides so no grease reaches the clean zone; noise under 55 dB; nylon feet on PVC flooring; static-dissipative liners between 10^6 and 10^9 ohms.

Site	Body size	Drawers and load	Wheels	Key feature
Repair bay	1200×600×950 mm	7 drawers, 60 kg each	125 mm PU, four braked	30 mm top, three-point lock
Production line	450×500×800 mm	4 drawers, 30 kg each	75 mm, two braked	25 mm drawer lip
Spare-part store	1000×500×1800 mm	8 drawers, 300 kg	None, fixed feet	Label slots, anti-tip bracket
Outdoor site	900×550×1000 mm	6 drawers, 45 kg each	150 mm rubber	Drain holes, 480 h salt spray
Laboratory	1000×500×850 mm	6 drawers, 25 kg each	Nylon feet	304 stainless, ESD liners

Conclusion

The site writes the specification: width and top for repair bays, narrow bodies for lines, height and labels for stores, wheel diameter outdoors, silence in the lab. Chosen that way, a metal tool chest stays at the workstation it was bought for.

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.