Custom Auto Lock Boxes
The auto lock base is glued during production so it arrives flat and springs into shape the moment the carton is opened. There is no folding sequence, no tucking and nothing for staff to learn. For anybody packing at volume, that removes the slowest part of the job. We produce a lot of auto lock boxes at ZEE Packaging and speed is what most clients come here for.
Opens And Locks Itself
Auto lock boxes assemble in a single motion.
- Base panels are pre glued at our factory
- Opening the flat carton snaps the bottom into position
- Under a second per unit, consistently
- No training needed, since there is no fold order
- The glued base holds far more weight than a tuck
- It still ships completely flat despite the glue
Most operators moving to auto lock boxes do so because their filling line could not keep pace with a manual base.
Gluing costs more and it earns that back in load capacity.
- Glued panels distribute weight across the whole base
- A tuck end pops open under any real load
- A snap lock holds better but still relies on tension
- Glass, liquids and multipacks all suit this construction
- The base stays square when the carton is lifted
- Send us the filled weight and we spec the glue pattern
- Auto lock bottom with a tuck top the everyday auto lock boxes we run
- With a tuck and tongue lock resisting accidental opening
- Window version showing the product through a die cut
- With a die cut insert holding contents steady
- Display lid version shipping sealed then opening for retail
- Corrugated auto lock for heavier shipping applications
Sizes We Print Regular
Every carton is built to your product, though these run often:
- 3" x 3" x 5" for a candle or jar
- 2" x 2" x 6" for a bottle or tube
- 4" x 4" x 6" for a mid size product
- 6" x 4" x 8" for a larger item
- 8" x 6" x 10" for a bulkier product
- 5" x 3" x 7" for a boxed set
Board And Print
- SBS C1S at 18pt to 24pt for most retail applications
- CCNB and duplex where a grey back is acceptable
- Kraft board for a natural or artisan position
- Corrugated for heavier shipping formats
- Matte, gloss and soft touch lamination
- Food grade certified stock where required
The glue seam is the one thing we test properly. A weak bond fails under load, so we sample with your actual product weight rather than assuming.
Materials Worth Choosing
- Recycled board grades, widely available here
- FSC certified stock, certificate available on request
- Soy based ink through the whole run
- Water based adhesive on the glued base
- No tape needed at assembly
- Right sizing so no board is wasted per carton
How An Order Moves Through Here
- 100 unit minimum, so a small brand can order properly
- Free 3D mockup and flat proof before anything prints
- Free dieline drawn by our own designer
- Physical sample on request to test the base under load
- Urgent turnaround at 5 to 8 business days
- Free shipping worldwide with nothing hidden
Frequently Asked Questions
How much faster than a snap lock?
Roughly a second versus several. Across a large run that difference becomes real labor cost.
Why do they cost more?
Gluing is a separate production stage. You pay slightly more per carton and save more in assembly time.
How much is an auto lock box?
Rough estimate is $0.22 to $0.65 per unit plain, $0.35 to $0.90 with print and $0.55 to $1.40 with finishing at moderate quantity. Volume moves it. Shipping is included in our price. This is estimate only, so ask our team for a exact quote.
How much weight will the base hold?
More than any tuck or snap lock. Send us the filled weight and we specify the glue pattern accordingly.
Do they still ship flat?
Yes, despite arriving pre glued. That is the whole appeal, since storage efficiency is unaffected.
Will the glue fail in humidity?
Not with the right adhesive. Tell us your warehouse conditions and we spec for them.
Can it hold a glass bottle?
At 20pt or above with a cradle, comfortably. The glued base is what makes it suitable.
