Depending on the unit loads conveyed, performance targets and spatial conditions, sorters with either a horizontal configuration (circular structure) or vertical configuration (linear structure) can be deployed.

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:

  • containers
  • boxes
  • parcels
  • 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.

New Infeeds for higher throughput

Based on the design of Interroll's successful Modular Conveyor Platform (MCP), the new infeed conveyor offers all the flexibility and efficiency advantages of a modular conveyor platform. For the first time, powerful and compact synchronous drum motors drive the compact infeed conveyors, eliminating the need for side-mounted geared motors. This allows a larger number of infeed conveyors to be installed under the same space conditions. Since elastic belts are used, the individual belt conveyors in the conveyor sections can be very short if required. For example, a ratio of length to width of 1:2 can be achieved, allowing high transport speeds and very small distances between the individual items to be conveyed. This also makes it possible to transport small goods.

The new infeed conveyor consists of several belt conveyors which are driven independently of each other. This makes it possible to adjust the transport speeds precisely to the requirements of the respective sorter, so that an optimum infeed rate of the conveyed goods is achieved. If, for example, several parcels are to be introduced into the flow of goods, the respective speeds can be increased or reduced in such a way that the parcels can be feeded seamlessly onto free carriers on the sorter line.

In addition to the significantly improved functionality, the new solution also offers advantages in terms of assembly and maintenance. For example, the pre-assembled belt conveyors, which are equipped with finger guard elements, can be mounted very easily and ergonomically from top. The use of elastic conveyor belts also means that regular belt tensioning is no longer necessary.

Sorter chutes

The new Magnetic Speed Controller MSC 50 provides gravity roller conveyors with significantly improved functionality, resulting in higher process reliability. Lightweight materials start up reliably, there is no need for laborious manual pushing, and employees contribute in a value-adding manner. Optimal braking of heavy materials, thereby significantly increasing safety in the workplace and preventing expensive damage to sensitive goods. With MSC 50, new installations can be planned perfectly, and existing installations can be retrofitted without any problems.

Interroll Products

Interroll Horizontal Crossbelt Sorter

Horizontal crossbelt sorters are characterized by their flexible, space-utilizing routing with curves that also conquer inclines and slopes....

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Interroll Vertical crossbelt sorter

The main feature of Interroll's vertical crossbelt sorter with linear, straight routing ("above – below") is its distinctive space-saving...

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RM 8711 Interroll High Performance Divert (HPD) 24 V Master

The High Performance Divert (HPD) is used for diverting unit loads, preferably with smooth bottom surfaces, at different angles onto a...

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Transfer RM 8731

The Transfer 24 V is used for diverting or merging onto a roller track suitable material at a 90° angle. In the process, the unit load...

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Crossbelt Sorter Comparison

Interroll  Competitors 
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. 
Interroll  Competitors 
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.   
Interroll  Competitors 
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.