Air heater HAPRO LE-P

Universally applicable air heater for high air volumes from 24 – 72kW

The electrically powered air heaters of the LE-P series are mainly used where large quantities of gaseous media have to be heated. LE-P air heaters can be found, for example, in drying systems, hot-air shrink systems, heating cabinets, hot-air ducts and preheating systems. The heating elements and housings are made of high-quality stainless steel, which is why they heat dry, moist and mildly aggressive air as well as nitrogen in fresh air or recirculating air operation. The equipment is easy to control and, with its compact dimensions, can be installed with only a small footprint.Since the return of hot air is possible with HAPRO air heaters, they are very energy efficient. All versions are designed for continuous operation.
The air heaters are fully thermally insulated (with the exception of the inlet and outlet nozzles). The devices are available with an output of 24 – 72kW, and special designs are possible. Customized layout pressure-resistant up to 5 bar (LE-D). Inlet temperature in recirculating operation is max. 300°C, continuous outlet temperature is 350°C.


Housings made of high-quality stainless steel (1.4301)

Heating element made of stainless steel (1.4301)

Terminal box made of powder-coated sheet steel


Outlet flange plate is manufactured according to customer specifications

Nozzles for hot air distribution, special systems on request

DIN-compliant overtemperature protection relay has an adjustable cut-off temperature

Temperature sensor Pt 100 C600 on outlet side

Temperature sensor NiCr-Ni or similar on outlet side

Power electronics: Solid-state relay complete with heat sinks

Temperature control by means of electronic controllers

Air flow monitoring on inlet side by means of differential pressure switch, pressure-wave switch or air flow monitor

ModelOrder No.Output kWVoltage VDescription
LE-P 1244001812424,03 x 400With overtemperature protection
LE-P 1364001813636,03 x 400With overtemperature protection
LE-P 1484001814848,03 x 400With overtemperature protection
LE-P 1724001817272,03 x 400With overtemperature protection
Designation (details in mm)DimensionsLE-P 124
LE-P 136
LE-P 148
LE-P 172
Total heightA450450450450
Diameter of inlet connectorB250 max.250 max.250 max.250 max.
Length of outlet connector, including funnelC50505050
Total length with inlet and outlet connectorD405600705905
Length of inlet connector, incl. funnelE50505050
Width of the housingF330330330330
Height of the housingG330330330330
Diameter of the outlet nozzleH250 max.250 max.250 max.250 max.

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