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Nabertherm Chamber Furnace LH 216/12/B500, 216 l, Tmax 1,200 °C, Brick Insulation, LH2122NKNE

Product information "Nabertherm Chamber Furnace LH 216/12/B500, 216 l, Tmax 1,200 °C, Brick Insulation, LH2122NKNE"

216 litres of usable space make the Nabertherm chamber furnace LH 216/12 the largest version in the brick-insulated LH series up to 1,200 °C. The interior measures 600 x 600 x 600 mm, the weight is 470 kg.

Format, weight and installation

Externally, the LH 216/12 measures around 990 x 1,280 x 1,590 mm depending on additional equipment. A base stand is already part of the scope of delivery. At 20 kW with a three-phase connection, the connected load is significantly higher than the LH 30/12 with 7 kW and the LH 120/12 with 12 kW, the three-phase supply at the installation site must be rated accordingly.

Door, floor and ceiling arch

The standard door is a fixed door with a hand-ground brick-on-brick seal. A recessed SiC plate in the floor protects the floor heating and provides a level surface for stacking the charge. The self-supporting ceiling arch gives the large furnace chamber stability and protects it against dust ingress. As a factory option, the fixed door can be replaced with a parallel swing door for protection against heat radiation or a lift door with electro-mechanical linear drive, an adjustable temperature limiter with adjustable cut-off temperature supplements the over-temperature protection if required. An optional cooling system cools the furnace with a predefined temperature gradient or a fixed fresh air volume and can be switched segment by segment via an extra function of the controller.

Heating, insulation and controller

Five sides of the furnace chamber are heated, the heating elements sit on support tubes and radiate freely. The five-sided heating provides good temperature uniformity in the furnace chamber, freely radiating heating elements on support tubes provide a long service life. Behind this is a multi-layer brick insulation made of lightweight refractory bricks with special rear insulation, exclusively with materials without classification under CLP Regulation (EG) Nr. 1272/2008. The furnace is operated via the B500 controller, which is mounted in the door and removable, with five programs of four segments each via touch operation.

Selection guide

If the furnace chamber is rarely used at full capacity, the LH 120/12 with 120 litres offers a smaller and lighter alternative in the same temperature class at LT Laborhandel. At 410 kg, the LH 120/12 weighs 60 kg less and requires a connected load of 12 kW, which is 8 kW less than the LH 216/12. If a higher final temperature is needed, Nabertherm also offers the series as LH 216/13 and LH 216/14, although these are currently not in the range at LT Laborhandel.

Typical applications

As a factory option, the LH 216/12 can be equipped with a weighing device for loss on ignition determination. For processes with non-flammable process gases, a protective gas connection and a manual or automatic gas supply system are available, process control and documentation can be handled by the VCD software package if desired.

Technical details

Tmax1,200 °C
Usable volume216 l
Internal dimensions (W x D x H)600 x 600 x 600 mm
External dimensions (W x D x H)approx. 990 x 1,280 x 1,590 mm (varies with additional equipment)
Connected load20 kW
Electrical connectionthree-phase
Weight470 kg
Heatingfive-sided, heating elements on support tubes
InsulationLightweight refractory bricks, multi-layer with rear insulation
Doorfixed door, brick-on-brick seal
ControllerB500, touch operation, 5 programs of 4 segments each

Other models in the series

In the 1,200 °C temperature class, Nabertherm builds the brick-insulated LH chamber furnace in five sizes from 15 to 216 litres.

ModelVolumeTmax
LH 15/12 (on request)15 l1,200 °C
LH 30/1230 l1,200 °C
LH 60/12 (on request)60 l1,200 °C
LH 120/12120 l1,200 °C
LH 216/12 (this page)216 l1,200 °C

Scope of delivery

  • 1x Nabertherm chamber furnace LH 216/12 with standard B500 controller
  • Base stand

Regulatory information

The device is an electrical appliance within the meaning of the German Electrical and Electronic Equipment Act (ElektroG). The WEEE registration number of the manufacturer Nabertherm GmbH is DE 31598342. Information on the return of old appliances can be found on our Environment and disposal page.

Individual requirements and procurement service

Factory options available for the LH 216/12 include a parallel swing door, a lift door with electro-mechanical linear drive, a cooling system with predefined temperature gradient, a protective gas connection, a manual or automatic gas supply system, an exhaust hood or stainless steel flue, a weighing device for loss on ignition determination, an adjustable temperature limiter, and the VCD software package for process control and documentation. For individual requirements, LT Laborhandel provides personal consultation.