Transparent Plastic Kanban Mailbox
Transparent plastic kanban mailbox for collecting returning cards: up to 40 cards to VDA 4902, depth over 35 mm. Wall-mounted or magnetic version, formats A6, A5, A5 landscape and A4.
Kanban system · Kanban mailboxes
Kanban mailbox: collects returning kanban cards, on the wall or on a magnetic board
The place where the kanban card returns when the container is emptied. The kanban mailbox is made of transparent plastic: you see at once whether there are cards to reorder, without opening it. It holds up to 40 cards to VDA 4902; you fix it to the wall, attach it to a magnetic board or place it on a surface.
Why choose it
Visible from afar
Transparent plastic: whoever manages reordering sees at once whether there are cards to collect.
Plenty of capacity
Over 35 mm deep: up to 40 kanban cards, with room for thicker documents too.
On the wall or on the board
Wall-fixing or magnetic version, to move onto the board when needed.
Next to the kanban board
It sits alongside boards with Systembox or Cardplan®: the card moves from the mailbox to the board.
Choose it if…
- You need a fixed place where operators drop the cards of empty containers.
- You want to see at a glance whether there are reorders to make.
- You have a kanban or magnetic board and want the collection point next to it.
Choose another solution if…
- You work in an EPA protected area: Plastic kanban mailbox ESD →
- Want to arrange the cards straight away in rows and columns: Systembox →
- Want to hang the cards on hooks and brackets: KAN-Special →
Not sure which one to choose? Use the selection guide →
Where to put the kanban mailbox
Where the card is detached from the material and where reordering starts:
- Lineside and supermarket: the operator posts the card as soon as the container is empty
- Next to the kanban board: the planner collects the cards and places them on the Cardplan® board or in the Systembox
- Warehouse and purchasing office: one mailbox per supplier or per collection round
- Production orders: orders and information collected in one place visible to everyone
With one mailbox for each collection point and a fixed collection time, the kanban loop stays regular.
How the kanban card circulates
The card holder is the first step of a simple loop:
You prepare the card
Part number, description, quantity per container, location and barcode: you print it on card and put it in the card holder.
View product →It travels with the material
The card stays on the container for as long as the material is needed on the line, protected from dirt and damage.
It comes back when the container is empty
The operator removes the card and posts it in the kanban mailbox: it is the reorder signal.
It moves to the board
Whoever manages reordering takes the cards to the kanban or heijunka board and replenishment starts in the right order.
View product →With the scanner you read the barcode or QR code through the pocket, without removing the card.
The LeanProducts service
We help you set up kanban, from the container to the board:
Choosing card holders
We start from your containers, surfaces and card format: we tell you the right card holder for each case.
Colours and card inserts
We recommend colours by department, line or supplier, and pre-cut card inserts to print with your office printer.
View product →Boards and collection
You complete the loop with kanban mailboxes, Cardplan® boards and Systembox, also ready-made in the Kanban Starter Set.
View product →Expansions and reorders
When you add containers, lines or suppliers we confirm the codes and quantities to reorder.
Send us a few photos of the containers and an example card: we will propose card holders, formats and quantities.
Technical data
| Version and format | Part number · W × H · pack |
|---|---|
| Wall-mounted, A6 portrait | KN-BK-35 · 115 × 165 mm · 2 pieces |
| Wall-mounted, A5 portrait | KN-BK-A5-35 · 165 × 165 mm · 2 pieces |
| Wall-mounted, A5 landscape | KN-BK-A5Q-35 · 217 × 127 mm · 2 pieces |
| Wall-mounted, A4 portrait | KN-BK-A4-35 · 230 × 250 mm · 1 piece |
| Magnetic, A6 portrait | KN-BKM-35 · 115 × 165 mm · 2 pieces |
| Magnetic, A5 portrait | KN-BKM-A5-35 · 165 × 165 mm · 2 pieces |
| Magnetic, A5 landscape | KN-BKM-A5Q-35 · 217 × 127 mm · 2 pieces |
| Magnetic, A4 portrait | KN-BKM-A4-35 · 230 × 250 mm · 1 piece |
| Material | Transparent plastic |
| Capacity | Up to 40 VDA 4902 kanban cards; depth over 35 mm (over 40 mm in A5 landscape) |
The format indicates the size of the cards or documents the mailbox accepts. For EPA areas there is the ESD version in low-charging ABS.
Plastic kanban mailbox ESDESD version for EPA areas
Cardplan® – Insert boardKanban insert board
SystemboxModular kanban holder
Systembox A4Systembox A4 for parts lists
Kanban Starter Set with SystemboxKanban Starter Set
KAN-LabelPockets for kanban cardsSetting up kanban on the shop floor?
Tell us how many containers and workstations you have and which cards you use: we will recommend card holders, formats and quantities.