According to the unit loads conveyed, performance targets and spatial conditions, sorters with either a horizontal configuration (circular structure) or vertical configuration (linear structure) can be employed. International system integrators are reaping the benefits of having Interroll as their partner; a partner who brings their sorter concepts to life.
Interroll Sorters are designed for efficient transport of all kinds of goods. Crossbelt sorters can quickly and reliably sort and transport goods with weights of between 50 g and 35 kg. Interroll Sorters are used in a wide range of areas, for example for transporting various goods:
- large mail items
- bundles of letters
- mailing bags
Interroll Sorters are highly developed machines with extremely robust mechanical and non-sensitive electronic systems. A sorter can easily be in use for ten years without requiring maintenance.
Throughput rates of 2,000 to 15,000 units per hour make the Interroll Crossbelt Sorter a highly efficient sorter for goods of all types.
With the horizontal crossbelt sorter, goods can also be transported in curves and up or down slopes. This makes for an extremely flexible, three-dimensional sorting system.
The vertical crossbelt sorter has a space-saving design and enables precise discharge and careful transport.
Mechanical Sorting Principle
The benefits are patently obvious
The main feature of the sorter is the crossbelt carrier with patented mechanical drive. They run on polyurethane coated wheels in aluminium profiles (linear sorter) or on steel tubes (horizontal sorter) and are pulled by a rubber block chain belt.
Once a crossbelt carrier reaches its intended destination, a pneumatically actuated plate makes contact with a drive wheel mounted underneath the chassis of the crossbelt carrier. In this way, the motion of the carrier is converted into driving the crossbelt, bringing the goods gently to their desired destination.
Easy mechanical discharge technologies
The design guarantees mechanical robustness and low maintenance, and the sorter's electronic components have been deliberately kept to a minimum. This saves costs and time when servicing. Positive drive of the mechanical crossbelt sorter is achieved via high-performance helical geared motors.
Each crossbelt carrier is connected to the next by a steel wire reinforced rubber block chain with linked attachments. Compared to sorters with linear motors, this type of drive increases efficiency and saves energy. Cutting even more costs! Moreover, the direct drive considerably facilitates tracking and requires just one rotary pulse encoder. Low noise operation results in a pleasant, quiet working environment.
Crossbelt Sorter Comparison
|The carriers and the divert motion utilize a proven, completely mechanical design, which is very accurate and robust.||Each carrier has an electrical drive or linear motor.|
|In many cases no part replacements in over 10 years of continuous operation.||Expensive parts requiring complex service and maintenance.|
|Destinations can be easily relocated or reconfigured with minimal downtime or work required.||Requires a power bus or some means of power distribution to every carrier.|
|Relocation of a destination requires complex programming and wiring changes.|
|The drive system utilizes standard, high efficiency, gearmotors.||Linear motors expend much more energy and create substantial heat.|
|Gearmotors require simple VFD's and control logic, providing very accurate speed control.||Linear motors require a more advanced controls system to constantly maintain speed.|
|Very low Energy consumption due standard gear motors.||If the speed is not accurately and properly maintained the induction and divert timing can be compromised.|
|Direct drive system with only one encoder for the complete sorter.||Complicated control system required for the carrier chain to minimize wear.|
|Drive unit can be located at any position around the loop providing ultimate flexibility.||Specialized Electrical Technicians necessary.|
|The rubber block drive chain is proven in many challenging applications, to last well over 15 years.|
|Simple, modular system, that makes relocation or reconfiguration very easy.||Relocation or reconfiguration requires significant electrical and controls involvement.|
|Simple minor maintenance utilizing typical mechanical maintenance people.||Most routine Maintenance will require specially trained Electrical technicians.|
|The design guarantees mechanical robustness, reliability and low maintenance.||Complex Controls system requires constant monitoring and tweaking to provide optimum results.|
|The electronic components have been deliberately kept to a minimum.|
|This saves costs and time when servicing.|