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About This Project


HLS Series

Elstein HLS high performance heaters are ceramic infrared rod heaters, which can be used for operating temperatures up to 1000 °C and surface ratings up to 87 kW/ m².

HLS Series heaters have a gold-plated ceramic parabolic reflector and transfer up to 80% of the energy supplied as infrared radiation to the material to be heated.

In this way, HLS heaters allow material temperatures of up to 700 °C or high throughput speeds. The typical operating temperature of 1000 °C is reached in less than one minute.

HLS Series heaters are therefore particularly suitable for use in plant construction in which special solutions have to be drawn up for the customer’s specific needs and for applications requiring high outputs.

Elstein HLS high performance heaters are available in two designs with 750 W / 230 V and for pairwise serial connection with 375 W / 115 V.

Dimensions :

Technical Details :

Type // Weight g // Wattage W HLS 120 750
HLS/2 60 375
Surface rating kW/m² 87,0
Typical operating temperature °C 1000
 Maximum permissible temperature °C 1100
 Wavelength range µm 2-10

Further Information :

Standard Design Thermocouple Heater Variants
operating voltage HLS 230 V Platinum thermocouple Typ S (Pt-PtRh) as assembly kit special wattages
operating voltage HLS/2 115 V description T-HLS // T-HLS/2 special voltages
leads HLS 150 mm assembly kit incl. thermocouple, TC clamp, clip extended leads
leads HLS/2 90 mm power leads with ring terminals
parabolic gold-coated reflector inside

Consideration :

Elstein HLS heaters must be operated with temperature control to avoid damage due to overheating. The power can be controlled by using proprietary sheated thermocouples as well as Elstein platinum-thermocouples (both type S, Pt-PtRh) in conjunction with TRD temperature controllers, TSE thyristor switching units and further accessories.

IR radiation panels can be assembled using mounting profiles MPO.

The national safety regulations must be complied with for the respective application, for example, the IEC or EN standard 60519-1, Safety in electrical heating installations.

Further information and safety instructions are mentioned in the mounting sheet, which is attached to each heater.