The Lindberg/Blue M HTF55322C is a split-hinge tube furnace engineered for laboratory and industrial high-temperature processing. It delivers precise single-zone temperature control from 100°C to 1200°C across a 12-inch heated zone, accommodating process tubes with outer diameters from 1 to 3 inches. The furnace employs patented Moldatherm® LGO heating elements and ceramic fiber insulation to achieve rapid temperature transitions and uniform heat distribution. Its split-hinge design enables horizontal or vertical configuration, while the cabinet geometry and heat-reflecting element support assembly minimize exterior surface temperatures. Operation requires an independent digital temperature controller (sold separately), which provides microprocessor-based PID control, adjustable overtemperature protection, and simultaneous LED display of setpoint and actual temperature in °C or °F.
Technical Specifications
• Maximum Temperature: 1200°C (2192°F)
• Temperature Range: 100°C to 1200°C
• Heated Zone Length: 12 inches (30.5 cm)
• Process Tube OD Capacity: 1 to 3 inches (2.54 to 7.62 cm)
• Control Type: Single-zone with microprocessor-based digital control
• Heating Elements: Moldatherm® LGO (light gauge overbend)
• Insulation: Moldatherm® ceramic fiber composite
• Thermocouple: Long-life Platinel II with 10 ft. compensated lead and polarized plug
• Orientation: Configurable horizontal or vertical
– Electrical Specifications
• Supply Voltage: 208/240 V
• Phase: 1-Phase
• Frequency: 50/60 Hz
• Amperage: 12 A
• Power: 2675 W
– Key Features
• Split-hinge design for easy access and tube loading
• Moldatherm LGO elements enable efficient heating with temperature uniformity
• PID control with single segment, single setpoint, 1 ramp to setpoint capability
• Built-in adjustable high-limit overtemperature protection
• Digital display shows actual temperature versus setpoint simultaneously
• Exterior surface design reduces ambient heat output
• Compact footprint: 17 × 23 × 16 inches (43.2 × 58.4 × 40.6 cm)
– Typical Applications
• Laboratory research and materials testing
• Ashing and combustion analysis
• Heat-treating and material processing
• Thermal decomposition studies
– Compatibility & Integration
Accepts interchangeable Moldatherm tube adapters for 1″, 1.5″, 2″, 2.5″, and 3″ OD tubes. One set of 2-inch diameter adapters is typically included. Compatible with ceramic, quartz, and alloy process tubes (customer-supplied). Requires external digital temperature control module—standard and programmable options available separately.
