For heat treatment shaft furnaces are used in electrical or gas-heated versions. We supply shaft furnaces for various heat treatment processes up to usable lengths of over 10,000 mm and usable diameters of up to 5,000 mm.


The advantages: it is possible to charge the furnaces directly by crane. Due to the typical recessed furnace shafts only a low crane hook height is required. The vertical treatment of long components minimizes changes of dimensions and shapes. A high heating and cooling rate with a uniform heat transfer to the components is achieved by a convection using circulation and a gas cylinder.



hardening, annealing, tempering, gas carburizing, nitriding


by crane possible partially or fully automated
Lid types by crane or lifting equipment
Door mechanism manual, hydraulic or by electric motor
Construction sizes from 2 m³ upwards
Construction variants with or without retort
Temperature range
up to 1.100° C
Insulation solid or lightweight construction

technical data

Heating type electrical or gas-fired


active or passive (via combustion air fan)
Temp. distribution
via air circulation up to +/- 1,5 K
Construction variants single or double carriage
Atmosphere air, nitrogen, other media
Programme controller

Rod, PE


separate gassing cabinet, ammonia splitter

Your contact person:

Felix Nolzen

+49 202 24647-0

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