Nabertherm Ashing Furnace with Lift Door

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Nabertherm Ashing Furnace up to 1100 °C for Your Laboratory

The product series of the Nabertherm Ashing Furnace with lift door or hinged door is characterized by an efficient supply air and exhaust air system in the individual model variants. With this system, an air exchange rate of more than 6 times per minute is achieved. This unit has been developed in all model sizes for ashing processes up to 1050 °C.

The wide range of applications includes loss on ignition determination and the ashing of foodstuffs or plastics for subsequent material analysis.

The high air exchange rate ensures that sufficient oxygen is available throughout the ashing process. Good temperature uniformity is also ensured by preheating the introduced air as it passes the furnace heater.

The most important features at a glance

The maximum temperature for this product series is 1100 °C (Tmax). Heating takes place from two sides with easily replaceable and protected ceramic heating plates with integrated heating wire. Thereby a 6-fold air exchange per minute or higher takes place.

Temperature uniformity is ensured by preheating the air and meets the requirements of DIN 17052-1 up to +/- 10 °C in the predefined empty usable space(from 550 °C).

Only insulation materials without classification according to Regulation (EC) No. 1272/2008 (CLP) are used. The ashing furnace is suitable for many standardized ashing processes according to ISO as well as DIN standards.

Design of housing and interior

A double-walled housing made of textured stainless steel sheet ensures low temperatures in the exterior and guarantees high stability. This unit is offered with a lift door (LVT) at no extra charge, or optionally with a hinged door (LV).

The hot side is always facing away from the operator. The integrated B510 controller includes 5 programs with 4 segments each. Pleasant operation in the laboratory is ensured by the low-noise heater with solid-state relay.

Possible additional equipment for models up to 1100 °C

A temperature selection limiter with adjustable shut-off temperature serves for more safety for furnace and charge. Further additional equipment includes a thermocouple feed-through in the rear wall or in the furnace door.

For loading the model at different levels, the ashing furnace can be equipped with a charging rack with closed or perforated trays.

The selectable VCD software package enables optimal process control and documentation, including monitoring of process data.

Control & Safety

Secure and uncomplicated recording of process data via USB stick is made possible with the integrated NTLog Basic for the Nabertherm controller. Explanations on the intended use of the ashing furnaces up to 1100 °C is included in the comprehensive operating manual.

500 Series Controller

The integrated standard controller of the Series 500 is developed and manufactured at Nabertherm, with special attention paid to ease of operation. Thus, a choice of 24 operating languages is available and the application is specifically tailored to the furnace model.

For even more control convenience, the free smartphone app "MyNabertherm" can be used to operate and monitor the furnace. A large touch panel is installed to display the relevant information and to operate and program the controller.

PLC controls

The PLC control system here is based on Siemens hardware and can be configured and expanded as required via HiProSystems. This includes, for example, functions such as:

  • Closing and opening
  • Cooling fan
  • Automatic movements
  • Multi-zone control
  • Special documentation requirements
  • Settings via remote maintenance

Additional functions with NTLog Comfort

The NTLog Comfort extension module allows you to transfer data directly to a connected computer via an Ethernet connection.

Technical data at a glance

The furnace is available in the two model variants with a hip door or with a hinged door in the four volume sizes 3 / 5 / 9 and 15 liters. The following technical data are given as an example for the model LVT 9/11 ashing furnace up to 1100 ° C and 9 liters volume with lift door.

The model 9/11 with Tmax 1100 °C and 9 liters volume has internal dimensions of 230 mm x 240 mm x 170 mm. The compact external dimensions are 415 mm x 485 mm x 845 mm, although these may vary depending on additional equipment – however, the practical dimensions make the units easy to fit into any work area.

The maximum fill weight for hydrocarbons is 15 g with a maximum evaporation rate of 0.3 g/min. The connected load is specified by the manufacturer as 3.0 kW. The heat-up time is 70 min. The weight of the LVT 9/11 is 45 kg.

Do you have any questions? We are happy to advise you!

If you would like to know more about a model of the presented product series or if you have any questions about another product of the manufacturer, we will be happy to assist you in word and deed.

Our dedicated customer service team will be happy to take care of your needs. You can reach us by phone at +49 30 2096579 00 or by e-mail at [email protected]

Additional information

Oven volume

15 l, 3 l, 5 l, 9 l

Oven temperature max.


Stove appliance type

ashing furnace, Veraschungsofen

Width inside (oven)

160 mm, 200 mm, 230 mm

Width outside (oven)

385 mm, 415 mm

Power (oven)

1,2 kW, 12 kW, 2,4 kW, 3 kW, 3,5 kW

Height inside (oven)

100 mm, 130 mm, 170 mm

Depth inside (oven)

140 mm, 170 mm, 240 mm, 340 mm

Depth outside (oven)

360 mm, 420 mm, 485 mm, 585 mm

Height outside (oven)

735 mm, 790 mm, 845 mm