The most suitable and economical carrier must be designed. Important consideration are:

• Ease of loading and unloading.
• Weight of parts to be carried.
• Clearances at horizontal and vertical dips.
• Connections to trolley attachment.

The Carrier is usually connected to the overhead conveyor by a bolt thru a clevis "H" attachment. This allows the carrier to hang pendantly or vertically on inclines and declines. A carrier connected to two clevis attachments will follow the path of chain or inclines and declines, and part must be held in place to prevent them from sliding to the low point of the carrier on inclines and declines. Other types of attachments are available.

Conveyor with carriers that are loaded from one side only must have proper directions of travel at "Unload" point.

After the carrier has been designed and trolley attachments selected, establish the overall carrier dimensions, including parts being conveyed. Make compact as possible.