The innovative INOMETA INOheat® heating roller has been designed with the needs and requirements for coating and laminating films and other substrates in mind. We ensure a reliably constant and uniform surface temperature distribution, as this is the prerequisite for even material web tempering.
A fast start-up curve of the heating power and precise temperature distribution control on the roller surface are what makes the electric heating roller stand out from competing products. The maximum lasting operating temperature is 200°C.
Owing to their electrical mode of operation, the heating rollers do not need any liquid media, the power and signals are transmitted via a flange-mounted slip ring contact. Heat losses outside the roller through the pipe system are thus now a thing of the past.
Electrically heated rollers with direct heat generation and precise temperature control
For many industrial applications like laminating, precise temperature control and the loss-free use of energy are essential for efficient and high-quality production. The key lies in delivering the exact amount of energy right where it’s needed: at the roller.
Conventional heating rollers rely on media like oil or water, but these require heat exchangers, pipes, and pumps, leading to significant energy losses. In short, a much larger amount of energy needs to be supplied than what ultimately reaches the rollers, resulting in low efficiency, higher production costs, and wasted energy.
With our INOheat® heated rollers, the required heat is generated locally by electrical energy directly within the roller. This eliminates the need for external heat exchangers, media-carrying piping or pumps for heat supply and can reduce the associated heat-transfer losses. In addition, there is no need to heat an external heating medium, enabling shorter heating and start-up times.
Thanks to local heat generation, INOMETA heating rollers offer additional benefits. Their compact design eliminates the need for bulky storage tanks, pipes, and pumps, simplifying installation and saving valuable floor space. This also minimizes setup times and the inherent inertia of conventional systems, which can reduce setup times and avoid the system-related thermal inertia of external media circuits.
Moisture extraction through precise heating technology – customer application
In this customer application, INOMETAs INOheat® heating roller is used in a winding process to produce current bushings for high-voltage applications. An aluminium core is wrapped with brown paper and aluminium foil. The process aims to completely expel the residual moisture contained in the paper during winding.
The INOheat® heating rollers bring the materials to a defined process temperature evenly and reliably, allowing the moisture to effectively diffuse out of the paper. A rubber platen roller provides the necessary compression on the winding body, thus supporting both the drying effect and winding stability. The resulting conical structure is achieved by intentionally varying the material width during winding.
The homogeneous temperature distribution across the roller surface and the fast response time of INOMETA heated rollers enable stable process control and consistent product quality – even with thermally sensitive materials.
This application demonstrates how local process heat generation can be used to precisely remove moisture from multilayer materials – a prerequisite for durable and stable winding cores in high-voltage applications like transformers or substations.
Heating roller 2.0 – cost-effectiveness through direct electrical heat generation
In contrast to conventional heating rollers, which are generally heated by liquid media, the operating costs with the INOMETA INOheat® heating roller can be considerably reduced in some instances with the following advantages:
- Avoidance of heat-transfer losses in storage tanks, piping and pumps through direct heat generation within the roller
- Very low space requirements (reservoirs, pipes and pumps are not required)
- Minimal investment required (reservoirs, pipes and pumps are not required)
- Extremely low service expenditure, as it is not necessary to maintain rotary feed-throughs, pipes, reservoirs and pumps (reduction in components requiring maintenance)
- No or significantly reduced service downtimes
- High cost-effectiveness through direct heat generation and durable design
- Easy to install, thanks to minimal space requirements
- Local generation of process heat, exactly where it is needed
- No leaks, which contaminate the surroundings or substrate
- Simplified disposal and processing during recycling by eliminating oil-based heating media
- No hazards or disposal requirements associated with waste oil
- Great options for integration into the machine control by means of fieldbus and therefore options to document and influence the process variables
- shorter heating and preheating times (time-consuming heating of the medium is no longer necessary)
INOheat® Heating rollers – for manufacturers of batteries, in the laminating, coating or stretching process
Moreover, INOMETA heating rollers offer an extremely compact machinery concept, as reservoirs, pipes and pump stations for media are no longer required. The heating roller can be operated on a decentralised basis via a control unit or integrated into the machine control by means of fieldbus and therefore enables external temperature monitoring.
Materials: steel, aluminium
- Temperature range: up to 200°C
- Surfaces: surface geometries, surface coatings (carbide, anti-stick, elastic casings in various degrees of hardness) can be implemented based on customer requirements
- Areas of application: battery cell production, fuel cell production, calander, lamination processes, coating processes, stretching processes
- Design: roller with fixed journal extension
- Dimensions: individual / dimensions on request
Electrical heater rollers – enquiry form
Use our enquiry form to allow us to assess costs and time required and to give us an overview of your requirements. You can ask questions about our heater rollers at any time using our contact form.
