Choose the movement before the track.
Start with what the product needs to do: travel continuously, stop at separate stations, accumulate between processes, or move under operator control. The required carrier behavior comes before the track arrangement.
Power & free describes how carriers engage with and disengage from the powered chain. Enclosed track and I-beam describe track construction. Compatible systems can combine these features, so they are not mutually exclusive choices.
Compare the movement your process needs.
Use the table to identify a discussion starting point. Capacity, suitability, and final configuration depend on the complete system and application.
| Production need | Configuration to discuss | Decision to resolve |
|---|---|---|
| A repeatable continuous route | Power-only enclosed-track or I-beam trolley conveyor | Match chain speed, carrier spacing, and process dwell. Stopping the chain affects the connected route. |
| Independent stops or accumulation | Power & free with suitable stops, switches, and controls | Define which carriers stop, where they queue, and how stations release them. Track type alone does not provide this behavior. |
| Operator-controlled overhead transfers | Hand-pushed monorail | Check manual movement effort, load control, transfer points, and operator access. |
| Upper-and-lower closed-loop transfer or storage | Over-N-Under arrangement | Confirm the loop, loading points, available height and required release behavior. Storage alone does not establish suitability. |
Then compare track, carrier, and route.
For an overhead route, enclosed track can suit a compact arrangement when the load and environment permit. Heavy-duty trolley systems commonly marketed as I-beam conveyors may suit more demanding loads and duty. Neither name establishes the capacity of the proposed system.
Review the loaded carrier envelope through curves and elevation changes, product orientation, support positions, drive and take-up access, and any finishing-equipment openings.
- Part and fixture weight together
- Required rate and time at each process
- Stops, accumulation, switches, and transfers
- Environment, support conditions, and maintenance access
Enclosed track and heavy-duty trolley: the tradeoffs.
Use these questions to discuss the application. Load ratings and layout limits belong to the selected equipment and engineered system.
| Decision | Enclosed track | Heavy-duty trolley / I-beam |
|---|---|---|
| Load and operating duty | Evaluate when the load and duty suit a compact track-and-trolley arrangement. | Evaluate when heavier loads or demanding duty call for a rugged trolley-and-chain arrangement. |
| Route and clearance | Review curves, loaded carrier envelope, process openings, and vertical changes. | Review trolley spacing, carrier geometry, turns, headroom, and structural loads. |
| Independent stopping | Requires a compatible power & free configuration; ordinary enclosed track alone does not provide it. | Requires a compatible power & free configuration; a power-only chain moves connected carriers together. |
| Maintenance | Confirm access to trolleys, chain, lubrication points, drives, and take-up. | Confirm access to wheels, chain, pins, rail, drives, and take-up. |
| Installed cost | Include carriers, route hardware, supports, controls, and installation. | Include carriers, route hardware, supports, controls, and installation; track price alone is not a complete comparison. |
Power & free selection factors
Enclosed track selection factors
Include the space below the conveyor.
Support columns, bracing, operator access, forklift routes, and adjacent equipment affect the value of the layout. IMH considers the conveyor route and supporting steel together.
Building attachments or freestanding support require review for the proposed loads and conditions. A clear route on a drawing still needs a practical installation and maintenance plan.
For an existing system, start with its condition.
A modification depends on the existing track, chain, trolleys, carriers, drives, take-up, supports, and controls. Share equipment information, available drawings, photographs, and the change you want to make.
Compatibility and condition review help establish whether repair, a targeted upgrade, or a new arrangement belongs in the conversation.
Bring a useful first brief.
You can contact IMH before choosing a conveyor family. Start with the product, the route, the production goal, the project location, and the available installation window. Mark unknown dimensions and assumptions so they can be resolved during planning.
- Product and loaded-carrier dimensions and weight
- Pickup, process, accumulation, and discharge points
- Production rate, dwell times, and release sequence
- Available layout, site photographs, and equipment information
- Support conditions, project location, and installation window
Turn the questions into a useful brief.
Record what is known, keep open items visible, and bring the application to IMH.
Start guided selection