Process planning · Custom solutions

Tray and Carrier Interfaces: Define How Parts Arrive at the Machine

Specify tray positions, carrier identity, empty pockets, handover boundaries and return responsibilities when planning drilling and tapping equipment.

BINSING automatic feeding configuration shown for a workpiece transfer scope discussion

The short answer

For parts supplied in trays or individual carriers, define the carrier and its contents as an interface package. Record pocket identity, part orientation, permitted empty positions and who controls each handover. Include the return path and carrier condition requirements. An orderly tray is not evidence that a proposed machine can receive, identify or return it without a separate interface review.

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Review the layout options and required part information to define the scope of a custom equipment inquiry.

Describe the carrier as well as the component

A loose-part drawing does not describe the tray that will arrive at the machine. Supply the carrier drawing or measured reference information, its identifier, the pocket arrangement and the intended orientation of the whole carrier. Distinguish a transport tray from a carrier intended to remain with the workpiece during processing. That distinction changes the interface questions even when the component itself is unchanged.

Record whether one carrier design serves several component variants. Explain how its identity and contents will be communicated at the transfer boundary. Photographs are useful for showing the proposed arrangement, but they should supplement a controlled position map. Avoid assuming that a pocket number or orientation convention used upstream is already understood by the equipment supplier.

Give each position an unambiguous meaning

The illustrative register below describes information to agree rather than a supplied automation function. Use a marked view with an orientation reference so position names remain meaningful when the carrier is moved. State whether identification is provided by the buyer's system, an operator procedure or a separately agreed equipment function.

Tray and carrier interface register
Interface itemDefinition to provideResponsibility to assign
Carrier identityDesign reference, revision and variantWho identifies an arriving carrier
Pocket mapPosition names and reference orientationWho supplies and maintains the controlled map
OccupancyAllowed full, empty and partial arrangementsWho supplies or establishes occupancy information
Part orientationExpected orientation in each occupied pocketWho confirms the loading condition
Return boundaryEmpty, partly occupied or finished-part carrierWho receives and routes the returned carrier

Include empty pockets and incomplete carriers

A tray shown completely full in a concept image leaves important production cases unresolved. State whether partial trays are permitted, how missing parts are identified and what information accompanies a carrier returned before completion. The design team needs the required outcomes for these cases. It should determine the corresponding equipment behavior through the project's normal engineering and safety review.

Consider a hypothetical tray with positions A through F where C arrives empty. The requirement should identify whether that carrier is acceptable, who knows C is empty and what record the receiving process expects afterward. This example establishes the information boundary; it does not prescribe sensors, handling motions or an operating procedure for an incomplete load.

Account for return flow and carrier condition

Specify whether incoming and outgoing parts share a tray or use different carriers. Identify the destination of an empty carrier and any handover needed before it can be reused. If carriers circulate through several processes, name the owner responsible for their condition and identification. A machining quotation should not silently inherit responsibility for the entire carrier circulation system.

Discuss the condition expected at each boundary, including any relevant cleanliness, damage or identification requirements established by the project team. Ask how a carrier that does not meet those requirements is reported and who resolves it. Do not assume that a proposed machine includes carrier cleaning, repair, storage or sorting merely because it accepts parts delivered on a tray.

Review representative carriers before confirming supply scope

Provide representative carrier records together with component drawings and the intended production mix. Identify any proposed tray that does not yet exist as a development item. The review should distinguish customer-supplied carriers, machine-supplied transfer elements and interfaces belonging to another integrator. Record document ownership and the evidence needed before each boundary is considered agreed.

For a BINSING inquiry, email a marked carrier view, pocket map, part drawings and a brief description of arrival and return responsibilities. Include partial-load cases and carrier variants. This lets the discussion focus on a defined transfer arrangement and helps keep unconfirmed carrier handling functions out of assumptions about a standard machine or custom solution.

Prepare your part information

  • Carrier drawing, identifier and revision are supplied
  • Pocket names share one controlled orientation reference
  • Empty and partial-load cases are defined
  • Arrival and return responsibilities have named owners
  • Carrier condition requirements and excluded handling functions are recorded
Discuss a carrier interface →

Common questions

Is tray-fed production the same as bowl feeding?

No. A tray presents parts through defined positions and a carrier interface, while a loose-part feeding proposal has a different incoming boundary. Request a review of the actual arrangement instead of transferring assumptions between them.

Can we reuse our current shipping trays?

Provide their records, representative condition and intended role. Suitability for transport does not establish suitability for a machine interface. The proposed transfer arrangement needs its own review before compatibility is confirmed.

Should empty pockets be prohibited?

State what your production process needs and ask the design team to review it. Whether partial carriers are permitted, how they are identified and what happens next must be agreed together rather than assumed from a full-tray demonstration.

Related equipment and project information

Define your carrier handover

Email the carrier layout, component drawings and arrival and return requirements for an interface scope discussion.

Discuss a carrier interface ↗