Project number: (10041) V0112
Esienmann Corporation – System Integrator
Portable school bus lift tables are used with an in-ground chain conveyor. The portable cart lift table is required as part of the assembly line of school buses. The chain conveyor transfers the cart lift table from one end of the assembly line to the other end. This open space allows access to the center of the assembly line and to the shipping docks.
In-ground Chain Conveyor
A school bus assembly line is much larger than your typical vehicle assembly line. As with all vehicle assembly lines the floor plan must allow access to both sides of the line in order to keep supplies stocked and accessible. The way this is achieved for this bus assembly line is to use portable lifts with an in-ground chain conveyor. As the bus reaches the end of the conveyor the skid and the bus is lifted up from the conveyor. The portable cart lift transfers the bus from the home position as the in-ground chain conveyor pulls the cart lift with skid and bus to the secondary position. This secondary position is the next section of the assembly line conveyor. The air activated limit switch then charges the poppet valves plumbed to the manifold of the lift table and exhausts the air from the air bags and lowers the lift. While the lift is lowering it places the skid along with the bus onto the conveyor. At this point in time the chain conveyor now reverses and pulls the cart lift back to the home position and re-docks with the air docking station in order to ready itself for the next bus to be transported.
Portable Lift Tables
By utilizing the portable lift table system the buses can be picked and placed which allows a clear path to the internal side of the assembly line. This feature is similar to the way a draw bridge functions to allow ship traffic to flow when the bridge is up and car traffic to flow when the bridge is down. With this portable bus lift fork trucks can freely travel to the internal side of the line to deliver components for assembly and the busses can freely travel from one end of the assembly line to the beginning of the assembly line.
Air Docking Station for Lift Tables
An air docking station was designed and built to charge the portable lift table at the home position. The air docking station connects the in house airlines to the Herkules cart lift table. When the bus is positioned above the lift table on the conveyor a signal tells the lift controls to raise and remove the bus from the conveyor. At the time the lift is docked at the home position the air also charges an air reservoir. This air reservoir is used in conjunction with a limit switch signal at the secondary position for the down cycle.
If you have an assembly line conveyor application that requires lifting contact Herkules at 800-444-4351.
Part number: LSA-200-30-42240
Part description: School Bus Conveyor Lift System Manufacturer
Capacity: 20,000 pounds (9072 kg)
- Air reservoir on board for signal switch to lower
- Triple lift tables system
- Pneumatic controlled
- High capacity
- High duty cycle
- Low profile
- High flow air manifold
- Air docking station
- Adjustable lowered height hard stops
- Module construction for versatility