Plant case · anonymized U.S. line

Custom gummy silicone trays: lock 9.2 g, 6.2 g and 8.8 g before you scale cavity count

Commercial depositing trays, not a stock candy pan. 70 / 80 / 100-cavity maps, Shore A 30 on approved notes, 2023–2026 revision trail. Buyer name stays off this page.

Project snapshot

Numbers from the drawing pack and approved mold notes. No invoice totals, no invented yield.

Target cavity weights
9.2 g / 6.2 g / 8.8 g
Production maps
70 / 80 / 100 cavities
One 80-cavity tray
354.4 × 284.9 × 17 mm
That cavity
Ø30.48 × 9.8 mm deep
Spacing on that rev
3 mm
Approved notes
Shore A 30

The line problem

A tray is part of the deposit, not a pretty sheet of wells

For a commercial gummy producer, cavity volume, spacing, wall height and tray stiffness show up as piece weight. A rendering can look finished and still miss the depositor.

This U.S. program ran several years and several SKUs: round wells, segmented / wagon-wheel geometry, target weights of 9.2 g, 6.2 g and 8.8 g, and production maps at 70, 80 and 100 cavities depending on the shape. An earlier 9.2 g generation also used an 84-cavity map. Those are separate production references, not one “gummy tray” SKU.

The gate we kept repeating: lock the single cavity, then multiply it. If the first well is already off-weight, 100 cavities only multiply the miss. Same logic as outer-row drift on cavity ml vs grams.

Steel gummy cavity inserts in a production plate, viewed at tray height
Steel inserts on the production plate. Face marks are the customer's locked artwork, not a catalog texture.
Black and white silicone gummy trays with round cavities and customer face marks
Two Shore/color paths, same round-cavity family. Filled wells are a sample check, not a published yield.

Step 1 — lock the finished gram count

9.2 g, 6.2 g and 8.8 g were treated as separate volume targets. Formulation density still belongs on the RFQ. Sequence we used:

target piece weight → cavity geometry → sample validation → production cavity map. Not: pick a cavity count, draw a tray, hope the grams land.

Jumping from 70 to 100 wells on the “same sheet” changes spacing, outer-row support, silicone between cavities, footprint, loaded stiffness, demold, and whether the filling head still hits every well. Pitch language lives on depositor-compatible trays.

Step 2 — freeze the map and the envelope

One documented 80-cavity 9.2 g tray: 354.4 × 284.9 × 17 mm overall, Ø30.48 × 9.8 mm cavity, 3 mm spacing, about 0.77 mm on the documented face detail, plus a reinforced perimeter on the production drawing. Do not paste those numbers onto a different geometry.

CAD cavity map of orange-slice gummy wells, envelope 393.75 by 279.43 mm
Different family on file: orange-slice map at 393.75 × 279.43 mm. Own envelope, own cavity count.
Isometric CAD of a multi-cavity gummy silicone tray
Isometric of a production tray solid. Wall height and edge land are part of the lock, not decoration.

Step 3 — edge support vs less rubber

Outer rows have less surrounding silicone than the center. Weak edges flex when the tray is filled, moved or peeled. Extra perimeter rubber adds weight; too little support shows up as outer-row grams and torn lands.

Edge extension was reviewed as DFM, not cosmetics. Trade-off: minimum material vs enough support under real handling.

Step 4 — keep Shore A 30 unless you re-validate

Approved mold notes referenced Shore A 30. Repeat orders stay on that band so handling and demold do not drift. A dull face is usually a cavity/tool surface job, not a hardness swap. A new gel, geometry or process that truly needs another Shore is a new sample loop.

White silicone tray with orange-slice segmented gummy cavities
Segmented wells in silicone. Ribs and center boss have to survive dump without tearing the land.

Step 5 — prove the face before you multiply 80 or 100 times

Bottom smoothness, raised or debossed marks, logo height (~0.77 mm on one revision), and product-in-tray photos were part of the lock. A small nick in one insert becomes a full-tray defect once the map is steel.

Grid of machined steel orange-slice gummy cavity inserts
Steel insert grid for the segmented family. Each insert is the same locked face.
Close-up of steel cavity inserts with customer lettering in each segment
Segment lettering cut in steel. Artwork is the customer's; WYD owns the tooling path on this floor.
White silicone gummy tray with round cavities, some filled for sample check
Round-cavity sheet with a sample row filled. Visual check only — grams still come from the locked volume.

High cavity count is not automatically more output

A much higher cavity-count concept was explored and then paused. That was the right call. More wells help theoretical pieces per tray only if spacing, support, edge stiffness, handling area and the filling process still work.

Ask: how many validated cavities can this tray carry? Not: what is the maximum we can pack.

Repeat orders from 2023–2026 needed a written reference per SKU: grams, cavity geometry, count, envelope, Shore A, logo/deboss, tooling revision. A new SKU does not silently overwrite the last one. Soft-tray commercial path: custom silicone gummy molds. Food-contact paperwork is per article and market on food-grade documents.

CAD section of one segmented gummy cavity with diameters 4.00, 11.80 and 34.99 mm
Single-cavity section on file: Ø4.00 mm boss, Ø11.80 mm inner, Ø34.99 mm outer (this drawing). Multiply only after this solid is approved.

What to send before we quote a similar tray

  1. Target finished gummy weight per cavity.
  2. Formulation or approximate density, if you have it.
  3. 3D, drawing, artwork or reference shape.
  4. Preferred cavity count.
  5. Maximum tray dimensions.
  6. Depositor or filling-machine constraints.
  7. Required logo, text or surface detail.
  8. Preferred hardness, if already validated.
  9. Prototype quantity and expected production quantity.
  10. Destination market and food-contact document needs.

Copy fields into the RFQ checklist. Soft trays often start at MOQ 20 per design after sample approval; this program’s commercial qty stayed on the PO.

On file vs not claimed

ItemOn fileNot claimed
Weights9.2 / 6.2 / 8.8 g familiesOne density for every gel
Maps70 / 80 / 100 (and an 84-up gen)Max packing = best output
80-up envelope354.4 × 284.9 × 17 mmUniversal tray size
HardnessShore A 30 on approved notesShore swap as a finish fix
BuyerU.S. commercial line, anonymizedCustomer legal name

Questions after seeing the steel and the sheets

Can one tray family carry 9.2 g, 6.2 g and 8.8 g?
Not as interchangeable labels. Those three weights were separate cavity families. Mixing them on one map without a new volume check multiplies the wrong gram count.
Does 100 cavities beat 70 on the same sheet?
Only if spacing, outer-row support, footprint and the filling process still hold. This program paused a much higher cavity-count concept instead of forcing it.
Are the 354.4 × 284.9 mm numbers universal?
No. They belong to one documented 80-cavity 9.2 g revision. A later orange-slice map on file is 393.75 × 279.43 mm. Copy the approved drawing for that SKU, not a neighbor.
Should we change Shore A to fix a dull cavity face?
Not as a first move. Approved notes on this program referenced Shore A 30. Face finish is usually a cavity/tool surface issue. A new hardness is a new validation.
What do you need to quote a similar tray?
Target grams per cavity, formulation or density if known, shape file, preferred cavity count, max tray envelope, depositor constraints, logo/detail, hardness if already locked, prototype and production quantity, and the food-contact document path for the destination market.

Send the grams, the envelope and the filling constraint

WYD reviews cavity geometry, tray layout and the manufacturing route from Bao'an before production tooling is cut. Prototype timing is typically 3–7 days after CAD lock when the file is frozen.