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Nabertherm Chamber Furnace LH 30/14/B500, 30 l, Tmax 1,400 °C, Brick Insulation, LH0342NKNE

Product information "Nabertherm Chamber Furnace LH 30/14/B500, 30 l, Tmax 1,400 °C, Brick Insulation, LH0342NKNE"

The Nabertherm chamber furnace LH 30/14 shares the 320 x 320 x 320 mm furnace chamber with the same-sized LH 30/12, but reaches up to 1,400 °C instead of 1,200 °C. In return, the connected load rises to 10 kW compared to 7 kW on the cooler model, at an unchanged weight of 200 kg.

More temperature at the same size

The higher Tmax does not change the external dimensions of around 710 x 930 x 1,290 mm, so the LH 30/14 fits in the same location as the 1,200 °C version. Both models are insulated with lightweight refractory bricks and special rear insulation, the LH 30/14 has a connected load that is 3 kW higher at 10 kW.

Door, floor and housing

The standard door is a fixed door with a brick-on-brick seal, hand-ground. A recessed SiC plate in the floor protects the floor heating and serves as a level stacking surface for the charge. The double-walled housing made of textured stainless steel sheet keeps the external temperature low, a self-supporting ceiling arch protects the furnace chamber against dust from above. As a factory option, a parallel swing door for protection against heat radiation or a lift door with electro-mechanical linear drive is also available instead of the fixed door, an adjustable temperature limiter with adjustable cut-off temperature supplements the protection of furnace and charge if required.

Heating, connection and controller

Five sides of the furnace chamber are heated, heating elements on support tubes radiate freely into the interior, this provides good temperature uniformity in the furnace chamber and a long service life for the heating elements. The connection is three-phase, although the heating itself only operates between two phases. The installed heating power is generously dimensioned, which enables short heating times. 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. The furnace is operated via the B500 controller, which is mounted in the door and removable for operation, with five programs of four segments each via touch operation.

Selection guide

If a final temperature of 1,200 °C is sufficient, the LH 30/12 is the variant with the lower connected load at the same size. If more usable space is needed at the same Tmax of 1,400 °C, Nabertherm also lists the LH 120/14 with four times the volume and the LH 216/14 with just over seven times the volume compared to the LH 30/14 in this series. Anyone looking for a fibre insulation with shorter heating and cooling times instead of the brick insulation will find the matching model in the LF 30/14 with the same Tmax and the same volume.

Typical applications

With the weighing device available as a factory option, the LH 30/14 can be set up for loss on ignition determination up to Tmax 1,400 °C. A protective gas connection for purging with non-flammable process gases and a manual or automatic gas supply system are also available as factory options, an exhaust hood or stainless steel flue can direct exhaust gases to site-provided extraction if desired.

Technical details

Tmax1,400 °C
Usable volume30 l
Internal dimensions (W x D x H)320 x 320 x 320 mm
External dimensions (W x D x H)approx. 710 x 930 x 1,290 mm (varies with additional equipment)
Connected load10 kW
Electrical connectionthree-phase (heating only between two phases)
Weight200 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 1,400 °C temperature class, Nabertherm builds the brick-insulated LH chamber furnace in five sizes from 15 to 216 litres.

ModelVolumeTmax
LH 15/14 (on request)15 l1,400 °C
LH 30/14 (this page)30 l1,400 °C
LH 60/14 (on request)60 l1,400 °C
LH 120/14 (on request)120 l1,400 °C
LH 216/14 (on request)216 l1,400 °C

Scope of delivery

  • 1x Nabertherm chamber furnace LH 30/14 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 30/14 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.