Can the logo on a custom logo plastic tool case sit on a curved lid?

Answer: Not recommended: a curved surface needs a fixture and the edges smear.

Can one tool take a different logo later?

Answer: Raised lettering needs a three-day insert change; pad and screen printing only a new plate.

Does a 2.5 mm wall carry 22 kg?

Answer: Yes, with 6 mm ribs on a 40 mm pitch, proven at five high and 40 degrees.

How is logo colour judged?

Answer: Five cases under D65 within ΔE 1.5, widened to 2.5 across batches.

What is the cheapest small run of custom logo plastic tool cases?

Answer: Laser marking on a standard shell, from 50 units, 0.1 mm deep, though a deep scratch removes it.

Custom Logo Plastic Tool Case Specifications: Size, Wall, Load

Quick answer: Fix three variables first on a custom logo plastic tool case: outside tolerance ±1.0 mm, main wall 2.5 mm, static load 22 kg. Reserve 110 × 40 mm of flat panel, raise the mark 0.6 to 0.8 mm at 1.5 degrees of draft, and the body still carries a five-high stack.

Why a Custom Logo Plastic Tool Case Starts With Three Variables
Outside Size, Cavity and Logo Panel Conversions
Wall Thickness and Rib Values
Load, Stacking and Handle Ratings
Logo Processes and Acceptance Parameters
FAQ

1. Why a Custom Logo Plastic Tool Case Starts With Three Variables

A custom logo plastic tool case is three variables pulling against each other: outside size, wall thickness and load. Leave them open and the mark has no flat panel to sit on.

The tension is arithmetic: ten millimetres outside buys 7 mm of cavity, raising the wall from 2.5 to 3.2 mm costs 0.7 mm per side, and load from 15 to 22 kg takes rib height from 4 to 6 mm.

Variable	Range	Decided by	Cost of exceeding
Outside size	300 × 200 × 90 to 600 × 400 × 200 mm	pallet and shelf module	needs a 650-tonne press
Main wall	2.2 to 3.0 mm	stack and drop height	cracks at the latch boss
Static load	15 to 30 kg	wall and rib height	needs metal inserts

2. Outside Size, Cavity and Logo Panel Conversions

Order matters: fix the cavity, derive the outside, then find a flat panel. Done backwards, the lid looks tidy while the cavity cannot take the tool.

Custom logo plastic tool case: silver-grey case on a roller conveyor inside a grey tote, keyed latch, windows and screening gantry behind

Shrinkage is separate: polypropylene at 0.5 percent cuts a 400 mm length at 402 mm, ABS at 0.4 percent at 401.6 mm, with ±1.0 mm outside and ±1.2 mm in the cavity.

No panel may cross the parting line, where the halves offset 0.05 to 0.15 mm and a letter goes sharp one side, furry the other. Keep 110 × 40 mm of flat with 8 mm margin.

3. Wall Thickness and Rib Values

A 2.5 mm wall with 1.0 to 1.2 mm ribs is the working combination. Ribs stay at half the main wall or less, or a sink mark appears behind the panel and takes the edge off raised lettering.

Main wall	Rib	Height	Static load	Sink risk
2.2 mm	1.0 mm	4 mm	15 kg	low
2.5 mm	1.2 mm	6 mm	22 kg	low
3.0 mm	1.2 mm	8 mm	30 kg	medium, zoned mould temperature

Six millimetre ribs on a 40 mm pitch carry a stack; wider and the wall bulges 1.5 mm between two stacked cases. Past 3.0 mm the returns collapse: 3.2 mm adds 28 percent weight for about 15 percent more bending.

4. Load, Stacking and Handle Ratings

At 22 kg the base carries 1.8 kg per square decimetre, with centre deflection held under 1.2 mm.

Custom logo plastic tool case: navy case upright on stacked trays, lid closed, black pull handle raised, lengthwise ribs on the shell, screening tunnel behind

Stacking is proven five high: about 112 kg held 24 hours at 40 degrees Celsius, height change under 2 mm, since modulus falls at that temperature. Handle rating is three times working load, 66 kg for 60 seconds, and 1.2 N·m of hinge torque holds the lid at 90 degrees.

5. Logo Processes and Acceptance Parameters

Moulded raised lettering lasts longest at 0.6 to 0.8 mm proud with 1.5 degrees of draft. Pad printing lays 12 microns in two colours, screen printing 20 microns but weaker on abrasion, laser 0.1 mm deep with no tooling change.

Process	Minimum stroke	Durability	Batch
Moulded raised	1.2 mm	life of the case	above 5,000
Pad print	0.3 mm	50 ethanol rubs	1,000 to 5,000
Screen print	0.4 mm	30 ethanol rubs	500 to 3,000
Laser	0.2 mm	scratches, will not peel	from 50

Acceptance is three checks: cross-hatch at 4B, 50 ethanol rubs without reaching substrate, five cases under D65 within ΔE 1.5. Lettering has a 6 mm height floor and a 1.2 mm thin stroke.

Conclusion

A custom logo plastic tool case specification is three ranges plus one flat panel: ±1.0 mm outside, 2.5 mm wall, 22 kg static load, lettering 0.6 to 0.8 mm proud. Written that way, the custom logo plastic tool case prints clean, stacks five high and holds at the handle.

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.