High temperature tube furnace 1200 °C with split-hinge design and LGO elements

The Thermo Scientific Lindberg Blue M split-hinge tube furnace is a high temperature tube furnace operating up to 1200 °C, developed for applications requiring both precise temperature control and easy process observation. As a result, this model combines a split-hinge design with Moldatherm LGO heating element modules for excellent radial and linear temperature control. Specifically, the tube furnace is available in single zone or three zone configurations, with tube diameters from 2.5 to 15.2 cm depending on the model. Furthermore, the unique cabinet design with heat-reflecting element support creates two insulating air spaces, which significantly reduces the outer surface temperature.

Moldatherm LGO heating modules

Specifically, this tube furnace combines Moldatherm ceramic fiber insulation with LGO (Light Gauge Overbend) heating elements. As a result, the unit delivers exceptional radial and linear temperature control across the entire heated length. Furthermore, these elements are energy-efficient and have a long service life, which reduces long-term operational costs. Notably, the combination also enables fast heatup and cooldown across varying processes.

Split-hinge design for easy operation

Moreover, the split-hinge design significantly simplifies loading, unloading, and observation of the process tube. Specifically, the tube furnace opens along a central hinge, providing access to the process tube without disassembling the entire unit. As a result, the time between experiments is reduced and sample replacement is quick. Furthermore, the tube furnace supports interchangeable Moldatherm tube adapters, allowing you to switch easily between different tube diameters.

Five models: single zone and three zone configurations

Specifically, you choose from five models depending on temperature profile and tube diameter:

• HTF55322A (120V US-spec): Single zone, 12 inch heated zone (30.5 cm), tube diameter 1 to 3 inch (2.5 to 7.6 cm), uniformity ± 1.0 °C over 7 cm. Power 2675 W at 120V, 11 A. Specifically intended for US markets or installations with a 120V transformer.
• HTF55322C: Single zone, 12 inch heated zone (30.5 cm), tube diameter 1 to 3 inch, uniformity ± 1.0 °C over 7 cm. Power 2670 W at 208/240V, 12 A.
• HTF55342C: Single zone, 24 inch heated zone (61 cm), tube diameter 1 to 3 inch, uniformity ± 1.0 °C over 17.8 cm. As a result, suited for longer samples or higher thermal uniformity. Power 2670 W at 208/240V, 12 A.
• HTF55347C: Three zone, 24 inch heated zone (61 cm), tube diameter 1 to 3 inch, uniformity ± 1.0 °C over 30.5 cm. Furthermore, independent control per zone for temperature profiles. Power 5355 W at 208/240V, 22 A.
• HTF55667C: Three zone, 36 inch heated zone (91.4 cm), tube diameter 3 to 6 inch (7.6 to 15.2 cm). In addition, suited for pilot plants and large-scale research applications. Power 5355 W at 208/240V, 22 A.

Furthermore, the three zone models feature three independent power circuits with separate thermocouples per zone. As a result, you can create a temperature profile with the center zone higher or lower than the end zones, up to a difference of ± 50 °C.

Controller ordered separately

Important: this split-hinge tube furnace ships without a built-in controller. Specifically, this model requires an Independent digital temperature control module, ordered separately. As a result, you can position the controller next to the furnace or remote, for example in fume hoods or containment areas for extra safety. Furthermore, these controllers are available in standard or programmable versions, with options for OTC over-temperature control and RS-485 communications.

Therefore, always order a matching controller (Lindberg Blue M 1200 °C tube furnace controller) together with this tube furnace. Specifically, the tube furnace model (single or three zone) determines which controller is compatible.

Applications in lab and industry

Specifically, this split-hinge tube furnace is used for demanding thermal processes up to 1200 °C, including:

• Chemical vapor deposition (CVD) and thin film processes
• Sintering and hardening at high temperatures
• Materials research in controlled gas atmosphere
• Diffusion processes in semiconductor materials research
• Crystal growth and calibration applications
• Pyrolysis and thermal decomposition at elevated temperatures

In addition, this model is used in advanced materials research, semiconductor R&D, pharmaceutical development, and biotechnology where both high temperatures and precise process control are required.

Standard accessories and process tubes

Each split-hinge tube furnace ships with a Platinel II thermocouple with 10 ft (3 m) compensated lead wire and polarized plug, plus a set of two Moldatherm tube adapters. Specifically, the supplied adapter diameters vary by model: 2 inch for HTF55322A/C, 3 inch for HTF55342C/HTF55347C/HTF55667C. However, process tubes themselves are not included. Furthermore, process tubes must be ordered separately from a dedicated tube supplier, in materials such as alumina, mullite, quartz, or metal.

Note: all models require hardwiring by a qualified technician, plus purchase of a power cord. In addition, the independent temperature controller and interconnecting wiring must be ordered separately.