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A 3ml vial plastic tray is a thermoformed insert with shaped cavities that hold 3ml vials upright inside a printed carton, so the glass never touches the box wall, the lid or another vial. We form vial trays and print the boxes around them at our Wenzhou factory from 100 pcs, with free design and free proofing, quotes back within 24 hours, samples in 1–3 business days and bulk in 7–15 business days. If you need the tray, the box or both as one matched set, this page covers the cavities, materials and quantities that matter.

What a 3ml Vial Plastic Tray Has To Do

A vial tray is a fit problem before it is a packaging format. Three requirements decide the design.

The vial has to stand, not lie down. A 3ml vial is short and top-heavy once the cap is crimped on. Standing it in a cavity that supports the neck as well as the base keeps it upright and stops the cap taking the load. A tray that only cups the base lets the vial lean, and a leaning vial presses against the lid.

The glass has to stay off the board. Vials are glass, and glass in a paper carton scuffs, chips and prints through the box if it moves. A tray creates a physical gap between the vial and the carton wall, which is the single biggest reason to use one at all.

The tray has to fit the carton it goes into. A tray is only useful if the carton closes over it. We dimension the tray and the carton together, so the finished assembly goes into the box without forcing the tuck and without a gap that lets the tray slide.

Why a thermoformed vial tray rather than a paper one

A folded paper tray is cheaper and adequate for a light, non-fragile item. A thermoformed tray is chosen when the contents are glass, when the cavity has to be visible through the box, when the tray must hold several vials in a fixed pattern, or when the insert needs to be wiped between uses. Thermoforming also forms a shaped pocket a folded card cannot hold, which is usually what settles the question.

Thermoformed Vial Tray: Cavity, Grip and Depth

The cavity is the whole job, and it is drawn from the vial rather than from a catalogue size. A 3ml vial is small enough that a fraction of a millimetre decides whether the fit is right.

Starting from the vial dimensions

We need the vial’s outer diameter, its height with the cap fitted, and the body diameter below the neck, because the neck is usually narrower than the body and that is where a cavity grips best. From those numbers we set the cavity diameter, the depth and the clearance. A cavity that is 0.5 mm tight will grip the glass too hard; one that is 1 mm loose lets the vial lean.

Draw depth, draft and wall thickness

Thermoforming stretches a sheet over a mould, so a deep cavity draws the material thinner at the base and corners. We choose the sheet thickness for the draw and keep the walls drafted so the part releases cleanly. Where a vial is tall relative to its diameter, the honest answer may be a two-depth tray or a different insert, and we will say so at the drawing stage rather than after the mould is made.

Single-vial and multi-vial trays

A single-cavity tray is the most common request for one vial in a retail carton. A multi-cavity tray holds several vials in a fixed pattern with a wall between each cavity so the glass never touches, and it is the format used for multi-packs and for shipping. The spacing between cavities is set by the tray’s rigidity: cavities too close together leave a thin wall that flexes in transit.

Materials and Finishes for a Vial Tray

The material decides how the tray looks and how it survives handling.

Clear PET is the default for a thermoformed vial tray. It shows the vial, takes a clean fold line and reads as a premium insert. Clear trays are usually combined with a printed carton, so the branding lives on the box rather than on the insert.

Opaque or coloured sheet is chosen when the tray is part of the design rather than a hidden insert, or when the vial should not be visible before purchase.

Printed or labelled trays carry a logo or a batch line, printed on the flat area between cavities — the only surface that still reads cleanly after forming.

Finish is mostly a function of the mould rather than a coating step: a high-polish mould gives a glossy tray, a matte-textured mould a soft-touch look that hides scuffs. Because we also print the carton, one proofing round covers both, and the tray is drawn to the labelled vial.

Vial Tray Plus Printed Box: Why to Buy Them Together

A vial presentation is a set: the tray, the carton and often a label or a card. Buying them from one supplier removes the most common source of mismatch.

If the carton is dimensioned by one supplier and the tray by another, the two are designed independently and the assembly either jams or rattles. Because we form the tray and print the carton from the same plant, the tray-to-carton tolerance is our problem rather than yours, and one artwork approval covers the whole set.

It also changes the timing. Coordinating a tray maker and a printer usually means two lead times stacked in sequence; here the tray and the carton run to the same schedule, so a vial project with a formed tray and a printed carton still finishes inside the 7–15 business day window after sample approval.

If you already have a carton supplier you are happy with, we can supply the tray only — you do not need to move the whole job to work with us.

Low MOQ and How the Order Runs

Boxes, cards and plastic trays start at 100 pcs; labels start at 1,000 pcs. For a thermoformed part the practical constraint is the mould, so the minimum run is set where the forming setup works properly.

What 100 pcs changes

A first run of 100 trays lets you seat a real vial, check the grip and the upright position, and photograph the result before committing to a larger order. Your cavity and your artwork stay on file with us, so a repeat run changes nothing except the unit price. A small run spreads setup cost over fewer units, so the unit price is higher than at 5,000; we quote both so the trade-off is visible.

The process, step by step

Send the vial’s outer diameter, its height with the cap fitted, how many vials per tray, the tray’s maximum footprint if it must fit an existing carton, and the quantity. You get a cavity drawing, a carton recommendation and a quote within 24 hours. Design is free: send artwork for the box and we place it on the dieline and return a proof, or if you have only a logo we propose one to three directions, normally within two to three days, and revise until it is right. A physical sample follows in 1–3 business days and bulk in 7–15 business days, behind four quality gates: incoming material, first article, in-process random sampling, and final AQL inspection with defects isolated. Delivery is by sea, air or express to the regions we serve; payment is T/T with a 30–50% deposit.

FAQ

What is the minimum order for a 3ml vial plastic tray?
Trays start at 100 pcs, the same as our boxes and cards; labels at 1,000 pcs. Because a formed part needs a mould, sampling comes first at 1–3 business days.

Can you make 3ml plastic vial trays that hold more than one vial?
Yes. Multi-cavity patterns with a wall between each cavity are standard. Tell us how many vials go in one tray and whether they stand upright or lie flat.

Which material do you recommend for a thermoformed vial tray?
Clear PET is the default because it shows the vial and takes a clean fold. Opaque or coloured sheet is used when the tray is part of the design, not a hidden insert.

Will the vial tray fit a carton I already have?
Send the carton’s internal dimensions and we will draw the cavity pattern to fit. If the existing carton cannot take the tray, we will say so before the mould is made.

Do you supply the vials themselves?
No. We are a packaging supplier, not a pharmaceutical manufacturer. We form the tray and print the box, label and card around it. If you need matched vials, caps and stoppers with the packaging, tell us in the enquiry and we will confirm what we can provide.

How do I know the vial will sit correctly before the run?
That is what the physical sample is for. Send the vial’s outer diameter and height with the cap on; we return a cavity drawing within 24 hours and a formed sample in 1–3 business days, so you can check the upright fit before bulk production starts.

Start a 3ml vial tray project — send your vial dimensions and target quantity, and you will have a cavity drawing, a carton recommendation and a price within 24 hours. Free design and free proofing; trays and boxes from 100 pcs; samples in 1–3 business days.