# Tray Packer for Robotic or Integrated Case Packing.

Pack trays into cases with high-mix robotic packing, or with one machine that erects, packs and seals.

Source: https://trfautomation.com/case-packing/tray-packer/

A tray packer is a top-load case packer that places trays of packaged product into shipping cases in a set pattern, as a robotic cell or as an integrated erect, pack and seal machine. TRF Industrial Automation packs trays with TRFRapidpack robotic case packing and with TRFOnepack, which also erects and seals the case. Your line setup and speed decide which one fits.

[Talk to a Sales Engineer](https://trfautomation.com/contact/)

| Key fact | Detail |
|---|---|
| What a tray packer does here | Picks filled, sealed trays and loads them into shipping cases from above (top load) |
| Platforms for trays | TRFRapidpack (flexible robotic packing) and TRFOnepack (erect, pack and seal in one machine) |
| How the platform is chosen | Line setup and speed first, then SKU mix, pack pattern, case format, footprint and integration scope |
| Case erecting and sealing | Built into TRFOnepack, or engineered into an integrated end-of-line project |
| Typical industries | Bakery and snacks, dairy and cheese, protein processing and food processing |

## What Is a Tray Packer?

A tray packer, in secondary packaging, is the machine that takes filled trays from the packaging line and loads them into shipping cases so they can be sealed, palletized and shipped. It does the job operators do by hand today: collect trays as they leave the sealer or wrapper, count them, orient them and lower them into an open case without disturbing the product.

In the US market, "tray packer" also names machines that build a corrugated tray from a flat blank and place product inside it. That is tray forming, a different category outside what TRF supplies in the United States. On this page, a tray packer loads finished trays into shipping cases.

Trays reach the case packer in many forms: trays with a sealed film lid, overwrapped trays and rigid trays for bakery items or ready meals, some with a shelf-ready label on top. Each is a separate application, validated with your real trays before a platform and tooling are confirmed. Because TRFRapidpack and TRFOnepack load from above, a tray is lowered into the case rather than pushed, which matters for film lids and delicate contents. The [top load case packer](https://trfautomation.com/case-packing/robotic-case-packer/) page explains the format across the family.

Tray lines run in [bakery and snacks](https://trfautomation.com/industries/bakery-and-snacks/), [dairy and cheese](https://trfautomation.com/industries/dairy-and-cheese/), [protein processing](https://trfautomation.com/industries/meat-processing/) and [food processing](https://trfautomation.com/industries/food-processing/) plants, including prepared foods.

## Does a Tray Packer Need a Vision System?

Only when tray position varies. TRFRapidpack packs with vision-guided delta robots for variable product flow, or with indexed picking when trays arrive in a controlled position. The choice depends on how trays reach the packer and how many SKUs the line runs.

A tray sealer that discharges in a fixed index, single file or in neat rows presents trays the robot can pick by position alone. A line that merges lanes, rejects trays at an inspection station, runs an accumulation table or lets trays rotate on transfers presents a variable flow, and vision guidance removes the need to re-orient every tray mechanically. Before the review, document whether trays arrive single file or in lanes, whether they can rotate between sealer and packer, how many tray sizes run and whether any tray must be turned for label position.

## How Are Trays Packed Into Cases?

Trays are packed in a pattern that sets the count, orientation and number of layers in each case, defined per SKU and stored as a recipe. One tray packer can run different tray sizes and pack patterns within the validated application: TRFRapidpack changes products and patterns by recipe with reduced mechanical adjustments, and TRFOnepack runs multiple products, recipes and packing patterns through robotic loading.

Tray patterns raise their own questions. Trays are usually wider than they are tall, so cases often hold few layers rather than a deep stack. Some trays nest when stacked, while others need the case wall or a divider so they do not bear on the product below. Shelf-ready cases may require a specific tray face toward the opening, and retailers may set different counts for the same SKU.

Each tray size and pattern is validated during project engineering. Sharing planned tray formats early helps the machine absorb the next format without a rebuild.

## Which Tray Packer Fits Your Line Setup and Speed?

Choose by line setup and speed. The three TRF case packing platforms form one family, and the right model is defined mainly by your SKU mix, how trays arrive, whether the case must be erected and sealed in the same machine and the products per minute you run.

| Line setup and speed | TRFRapidpack | TRFOnepack | TRFDroppack |
|---|---|---|---|
| Application range | For applications of about 100 to 200 products per minute | For applications of about 20 to 50 products per minute | For applications of about 20 to 500 products per minute |
| Packing principle | Delta robots, vision-guided or indexed | Erects, packs and seals the case in one machine | Controlled gravity loading |
| Trays | Yes | Yes | Not for trays |
| Line setup it fits | Medium to high speed, multiple SKUs, variable tray position | Low to medium throughput, replacing manual or semi-automatic packing | Repetitive flexible packages, such as bags and pouches |
| Primary driver | Flexibility | Integration | Efficiency |

*Application ranges for commercial screening, not machine speeds. TRF engineering validates final capacity for each application (tray, end-of-arm tool, pack pattern and case).*

**[TRFRapidpack](https://trfautomation.com/case-packing/robotic-case-packer/)** is the high-mix tray packer. It suits tray lines where SKU complexity, tray orientation, labor dependency or throughput limit manual packing, handles trays with film lids or soft contents with controlled handling, and can start with one robotic module and add robots as volume grows.

**[TRFOnepack](https://trfautomation.com/case-packing/integrated-case-packer/)** erects the case from a flat blank, loads trays robotically and seals the case in one coordinated machine, for small and mid-sized food and CPG manufacturers. Tray cases are often shallow, and when one machine handles erecting, loading and sealing, case squareness and flap control are engineered as one problem.

**[TRFDroppack](https://trfautomation.com/case-packing/drop-packer/)** loads repetitive flexible packages by controlled gravity, with no robotic end-of-arm tooling. It packs flexible packages such as bags and pouches, not trays.

Each platform can run standalone or as part of a complete TRF end-of-line system, with [TRFIntraflow](https://trfautomation.com/conveyor-systems/case-conveyor-intralogistics/) moving sealed cases to a TRF palletizer. The [case packing](https://trfautomation.com/case-packing/) page compares the three platforms side by side.

## Frequently Asked Questions

### How Many Trays per Minute Can a Tray Packer Pack?

A tray packer from TRF packs trays in applications of about 100 to 200 products per minute with TRFRapidpack, or about 20 to 50 with TRFOnepack, which also erects and seals the case. These are application ranges, not machine speeds. Actual capacity depends on the tray, the pick tool, the pack pattern and how trays leave the sealer, validated by TRF engineering for each line.

### What Is the Difference Between a Tray Packer and a Tray Palletizer?

A tray packer loads trays into shipping cases at the case packing step, while a [tray palletizer](https://trfautomation.com/robotic-palletizing/tray-palletizer/) stacks loaded trays directly onto a pallet at the palletizing step, for plants that ship trays without an outer case. Some plants need both, and TRF can engineer the case packer, the conveying and the palletizer as one project with shared controls.

### Can a Tray Packer Handle Trays With Film Lids or Delicate Contents?

A tray packer can handle trays with film lids or delicate contents within the validated application. Top loading lowers each tray into the case instead of pushing it, and TRFRapidpack is designed for controlled handling of delicate, flexible or irregularly shaped products. Where the tool may touch the tray, and how fast it moves, are defined with your real trays.

### Can One Machine Erect, Pack and Seal Cases of Trays?

One machine can erect, pack and seal cases of trays: TRFOnepack forms the case from a flat blank, loads the trays robotically and seals the case on one controls platform, for applications of about 20 to 50 products per minute. Tray cases are often shallow, so case squareness and flap control are engineered as one problem inside the same machine.

### Can a Tray Packer Connect to My Tray Sealer and Palletizer?

A tray packer connects to your tray sealer and palletizer when the signals, buffers and conveyor handoffs are engineered in one project. TRF defines the interface with the sealer discharge upstream and the handoff to a TRFCobot, TRFCompact or TRFSpeed palletizer, or one you own, downstream, through [TRFIntraflow](https://trfautomation.com/conveyor-systems/case-conveyor-intralogistics/). See [end-of-line integration](https://trfautomation.com/conveyor-systems/case-conveyor-intralogistics/).

### What Is the ROI of a Tray Packer?

The ROI of a tray packer comes from comparing its installed cost with annual savings: operators packing trays per shift, shifts per day, local labor cost, output the tray sealer gains when packing stops limiting it, and trays no longer damaged by handling. There is no typical figure, so a TRF Sales Engineer builds the estimate with your line data.

## Start Your Tray Packer Evaluation

Choosing a tray packer is a decision about your line. High-mix tray lines running at speed point to TRFRapidpack and its recipe-based changeovers; lower-volume lines that also need the case formed and sealed point to TRFOnepack. Send TRF your tray samples, SKU list, products per minute, pack patterns and layout, and a TRF Sales Engineer validates how the trays behave and which platform fits.

[Talk to a Sales Engineer](https://trfautomation.com/contact/)

Want to see TRF installations first? Browse the [TRF case studies](https://trfautomation.com/resources/case-studies/).

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TRF Industrial Automation | 14840 W 107th St, Lenexa, KS 66215, United States | (913) 242-8019 | Serving the United States