Custom Door Carriers for OEM Assembly Lines
Invio leads the way in custom door carriers engineered for OEM line performance.
What a Door Carrier Does
A door carrier is a specially designed fixture and transport platform that supports the door, keeps it stable, and presents it at the right orientation for assembly tasks like glass, wiring, speakers, trim, locks, and handles. The goal is simple: minimize handling risk while keeping the door consistently positioned for quality and throughput.
Door carriers are often used in high-volume manufacturing environments where big or irregular parts require controlled handling and presentation. Automotive door assembly is a typical example, where doors can be heavy and awkward to transport without a properly engineered solution.
What You Get From a Purpose-Built Carrier
Safer handling and better ergonomics: We design for real-world push, pull, and positioning tasks using established ergonomics guidance and assessment methods to lower strain and improve day-to-day usability.
Consistent positioning for quality: Repeatable location and controlled motion help limit variation at the station, especially when you are building multiple door variants or running mixed-model production.
Cleaner flow between stations: Doors can pass through the line without re-handling when carriers are designed to hand off to docks, transfer points, or automation interfaces.
How Door Carriers Work on the Line
In most general assembly processes, door removal is the first station, and we often supply the doors off lift assists that feed the carriers. The lift assist removes the door from the vehicle hinges and loads it onto the carrier, either directly on the hinges or onto custom V-Blocks shaped to your specific door profiles.
Once loaded, the operator locks the door in place using slide packages and front J blocks. Every carrier solution is configured to your plant’s scope, station layout, and line speed.
Carrier Configurations
We build door carriers in three main configurations: single door, one-sided (2-door), and 4-door. All configurations can be equipped with swing gates that give operators easier access to the outside of the door for component installation.
Some designs use the door’s own hinges to create the swing gate function, removing the need for a separate steel gate structure.
We work directly with you and your conveyor supplier to determine kingpin location, tolerances, and stabilizer wheel placement so the carrier integrates cleanly with your existing line. We support prototype builds, roll-around trial and repair carriers, and mass production door carriers of 100 to 525+ units.
Typical Applications
Some of the typical applications for door carriers include:
- Door sub-assembly build-up and kitting-to-line delivery
- Assembly presentation for trim, wiring, speakers, glass, and hardware
- In-process staging between work zones
- Rework and inspection presentation where stable locating is essential
Custom Door Carrier FAQs
Speak to an Application Engineer
Connect with an Invio Engineer at any point in your project process. We can quickly provide pricing and technical guidance to help accelerate your product carrier application or provide actionable proposals if your project has known requirements.
