The handling line runs entirely below the floor; the upper surface stays a free corridor open to plant traffic.
Trench Conveyor System | Below-Floor Tire Handling
In a tire plant, the floor is never empty: forklifts, operators and finished tires share the same path. Run that path above the floor and every crossing becomes a wait, and every wait becomes downtime.
A trench conveyor system moves the handling line below the floor. The belt runs in a recessed channel, the floor above stays open to plant traffic, and production keeps flowing. Aliş Makina designs and builds these lines as one engineering whole.

Flow Management and Line Features
A trench conveyor is not an ordinary conveyor dropped into a pit. The channel geometry, the belt and the transfer points are each engineered separately.
The corner transfer is the critical decision. As a tire turns 90 degrees, a flat belt drives it by friction; the sidewall scuffs, the belt edge wears, the noise rises. A transverse roller top belt turns that corner into a rolling motion. The rollers under the tire spin, the tire moves sideways, and the belt keeps traveling forward. The transfer completes without sidewall contact.
Applications
A trench conveyor earns its place over long distances and where plant traffic is heavy. Moving finished tires from post-cure quality control to the warehouse, it clears the floor above and separates in-line flow from other traffic.
Finished-tire handling: transfer from curing and quality control to the warehouse
Line paths with 90-degree corner transfers
Facilities that must keep the working floor above open
Integrated Systems
A trench conveyor never works alone; it ties into the stations at both ends of the line and into the plant traffic around it. Aliş Makina integrates layout, controller and drive from a single source.
Application Areas
Technical Specifications
| Feature | Value |
|---|---|
| Line architecture | 4 sets, each 50 m, 200 m total |
| Belt family | Intralox S4400 Transverse Roller Top (TRT) |
| Roller material / pitch | Staggered acetal, 50.8 mm pitch |
| Belt strength | 2,200 lbf/ft (highest class in the family) |
| Edge link structure | Rodless, closed edge |
| Transfer | 90 degrees, no sidewall contact |
| Installation | Below-floor (recessed / trench) channel |
| Certification | CE conformity |
Below-floor handling for plants where the upper traffic cannot stop
If you face a similar handling constraint, we treat it not as picking a belt from a catalog but as an engineering problem spanning the whole path, from the press exit to the warehouse drop.