Screw conveyor in L-design – horizontal and vertical conveying in one unit
Why this conveyor was developed
In many systems, there is a requirement to transport bulk materials over different height levels in a controlled manner. Conventional solutions such as elevator buckets require their own air flows, cause additional wear, require considerable explosion protection and are often difficult to integrate into existing compact systems.
A space-saving, low-maintenance alternative was therefore required for confined system layouts, modular systems or containerized processes.
The L-conveyor was developed for precisely this reason: a screw conveyor solution that combines horizontal and vertical conveying in a single machine, without the need to generate its own air.
Basic principle of the L-design
The conveyor consists of three coordinated assemblies:
- Horizontal conveyor (KS.300×2000)
Transports the material on a set level and enables several material tasks via N1 connections.
The horizontal section has a length of approx. 2,000 mm.
- Transition module KS.300-90°
A defined 90° deflection section transfers the material from the horizontal to the vertical screw box.
This component is the design core of the L-system.
- Vertical conveyor K300 h=2000
Lifts the material to the next level.
The vertical section has a length of approx. 2,000 mm.
Material is discharged via the N2 process connection.
The L-conveyor thus replaces both a horizontal and a vertical conveyor line, including the deflection – without additional units.
Technical features and performance data
The system is designed for conveying bulk material and granulate.
The technical specifications in the drawing are as follows:
- Conveying capacity typically 3-7 t/h (depending on material)
- Version in trough width 300 mm
- Horizontal drive: 2.2 kW
- Vertical drive: 2.2 kW
- Total connected load: 4.4 kW
- Total horizontal length: 3,633 mm
- Total vertical height: 2,200 mm
As shown in the drawing, both conveyor sections are clearly separated assemblies with their own drives, which makes maintenance and replacement easier.
Advantages of the system
The design offers a number of significant advantages that go beyond traditional conveyor solutions:
- Controlled and continuous material transport
- Space-saving design for tight system layouts
- Installation also possible in very confined spaces
- No air generation as with elevators – less dust, fewer explosion protection measures
- Robust, low-wear and easy to service
- Scalable in trough widths of 300, 400, 500 and 600 mm
- several material tasks N1 possible
- Defined material ejection via N2
As the conveyor does not generate any process air, it significantly reduces the requirements for filters, separators and explosion protection concepts.
Process connections
The drawing defines two process points:
- N1 – Material feed
Multiple possible along the horizontal section. - N2 – Material discharge
At the head end of the vertical conveyor.
This clear process structure facilitates integration into pelletizing systems, dryer lines, crushing processes or general bulk material logistics.
Areas of application
The L-conveyor is particularly suitable for:
- Pelletizing plants
- Containerized process lines
- Pre- and post-tank feeding
- Linking different height levels
- Bulk material transport with limited space
- Conveyor lines where elevators would be unsuitable or too maintenance-intensive
Thanks to its compact design, the system can be perfectly integrated into modular system concepts.
Conclusion
The L-shaped screw conveyor is a robust, space-saving and service-friendly solution for combined horizontal and vertical bulk material conveying. It replaces complex elevator solutions, reduces the technical outlay and enables a controlled material flow – even where space is at a premium.
With its clear process structure, flexible material tasks and high operational reliability, this conveyor is an essential building block for modern, compact and efficient system layouts.
