How should buyers specify an ESD box with dividers?

An ESD box with dividers works best when every compartment has a defined component, clearance, label, and handling orientation. A generic grid is not enough for a quote that must prevent mixed lots, contact damage, and unverified ESD performance.

This checklist helps SMT material planners and electronics buyers specify Boîtes ESD for component segregation. Start with the ESD safe divider box overview if the team needs the category basics, then use this guide to prepare a layout a supplier can quote.

Part 1. What segregation job must the box perform?

The first decision is not the number of cells; it is the failure the layout must prevent. A cell may keep different resistor values apart, stop connector pins from contacting adjacent parts, or preserve one inspection lot during a line-side move.

Dividers do not replace protective inserts when a component needs immobilization or point-of-contact protection. For covered transport and longer storage, review the covered ESD box selection guide alongside the divider layout.

Part 2. How should components become cell geometry?

Measure the item that occupies the most space, including pins, protective bags, labels, or reel flanges. A nominal component size alone can create cells that are too tight after packaging variation or too loose during transport.

Avoid copying a grid from a foam insert without checking the outer box’s usable internal dimensions. Sanwei lists custom compartments and dividers on its ESD Box & ESD Tray solution page; attach the drawing and ask the quotation to state the final internal cell dimensions.

Part 3. How can divider retention be verified?

A divider is useful only if it stays seated during normal loading, carrying, and unloading. Check the divider’s engagement with the box wall or slots rather than assuming a removable part will remain in place.

Run a sample check with representative loaded cells:

1. Insert and remove the divider repeatedly using the expected operator method.
2. Carry the loaded box through the actual route, including the normal turns and transfers.
3. Inspect for divider lift, cell crossover, snagged leads, and parts that bridge the divider top.
4. Record whether the box is moved level, tilted, stacked, or placed on a cart.

Sanwei’s ESD Box product page lists anti-static partitions as an optional accessory and identifies slots on selected box models. Confirm the selected model, divider type, and retention method on the quotation instead of treating the option as universal.

Part 4. Which material and ESD evidence should be requested?

An ESD label on a box is not a substitute for evidence tied to the intended material and test method. The buyer’s ESD program should define the acceptable electrical range, test locations, conditioning, and acceptance criteria.

Sanwei publishes material options and a customizable resistance range on its solution page. CEI 61340-5-1 et ANSI/ESD S20.20 provide program-level context; neither source validates an individual finished box without the relevant product evidence.

Part 5. How should labels preserve lot segregation?

Labels turn a physical cell into a controlled location. The RFQ should state whether the label identifies a part number, lot, inspection status, workstation, or a combination of those fields.

Sanwei lists logo marking, RFID slots, and barcode label areas as customization options on the solution page. Treat those features as design inputs to confirm, not as a claim that a particular standard box already has them.

Part 6. Which RFQ fields and sample checks are essential?

Ask suppliers to quote from a single controlled layout. A verbal description such as “dividers for ICs” leaves too much room for different cell dimensions and retention designs.

For a model review, link the RFQ to the Sanwei ESD Box product family. The published product page lists partitions, labels, covers, and selected slotted models as options within the family; the quotation should identify the chosen model and accessories.

Fit Boundary

Send the drawing, sample parts, and handling description through Contact Sanwei to confirm whether a standard box, divider option, or custom layout is appropriate.

FAQ

What is an ESD box with dividers used for?

It separates defined components, lots, or statuses into individual cells while the box participates in the site’s ESD-control process.

Are removable dividers suitable for component storage?

They can be, provided their retention is tested with the loaded box in the actual handling orientation. Confirm how the divider engages the selected box model.

How should I size each compartment?

Use the maximum component envelope, including packaging and protrusions, then state the required clearance, divider height, and maximum fill level.

Can Sanwei customize dividers for an ESD box?

Sanwei lists custom compartments and dividers on its solution page. Provide a cell drawing and confirm the final configuration on the quotation.

Should each compartment have a label?

When part number, lot, inspection status, or location can be confused, give each cell or controlled group a visible, stable identifier.

What ESD data should be requested for the box and divider?

Request the material identification, applicable electrical test record, method, test locations, and traceability to the supplied sample or lot.

Do dividers replace conductive foam?

No. Dividers organize and separate; foam or a dedicated insert may still be needed when components require immobilization or contact protection.

What should be checked on a pre-production sample?

Check cell dimensions, divider fit and retention, loaded handling, label visibility, visual damage risk, and the ESD evidence required by your program.

Références

• IEC 61340-5-1 — Electrostatics: protection of electronic devices from electrostatic phenomena
• ANSI/ESD S20.20 — ESD Association standards information