Thermal tube furnace R 50/250/12

for general applicationslaboratoryair-operated

Overview
Compact tube furnaces of the R series with a ceramic C 530 working tube and two fiber plugs are designed for laboratory and small-scale industrial thermal processes. Integrated control and power electronics make them suitable for applications that require defined atmospheres, controlled heat-up cycles and reproducible results.

Key features

• Maximum temperatures: 1200 °C or 1300 °C
• Outer tube diameters: 50 mm, 120 mm, 170 mm
• Heated lengths: 250 mm, 500 mm, 750 mm, 1000 mm
• Single-zone standard; optional three-zone control from 500 mm heated length
• Touch controller B510 (5 programs × 4 segments) and NTLog Basic for USB data logging
• Ventilated dual-shell stainless steel housing and insulation materials without CLP categorization (no RCF)
• Solid-state relays and heater elements mounted on support tubes for low-noise operation and free radiation

Standard equipment

• Tmax 1200 °C or 1300 °C
• Single-zoned design
• Ceramic working tube C 530 with two fiber plugs for operation in air
• Thermocouple type N (1200 °C) or type S (1300 °C)
• Outer tube Ø: 50–170 mm; heated length: 250–1000 mm
• Dual-shell ventilated housing in textured stainless steel
• Solid state relays, support-tube mounted heating elements
• NTLog Basic for process data recording via USB
• Controller B510 with touch operation (5 programs × 4 segments)

Optional equipment

• Over-temperature limiter with adjustable cutout temperature
• Charge control with temperature measurement inside the working tube
• Three-zoned design (from 500 mm heated length) for improved temperature uniformity
• Gas supply packages (various configurations)
• Process control and documentation via VCD software package

Technical specifications (extract)
Model | Tmax (°C) | W (mm) | D (mm) | H (mm) | Outer tube Ø (mm) | Heated (mm) | Length constant single-zoned (mm) | Length constant three-zoned (mm) | Tube length (mm) | Connected (kW) | Electrical connection | Weight (kg)
R 50/250/12 | 1200 | 434 | 340 | 508 | 50 | 250 | 80 | - | 450 | 1.9 | 1-phase | 22
R 50/500/12 | 1200 | 670 | 340 | 508 | 50 | 500 | 170 | 250 | 700 | 3.4 | 1-phase | 34
R 120/500/12 | 1200 | 670 | 410 | 578 | 120 | 500 | 170 | 250 | 700 | 6.6 | 3-phase | 44
R 170/750/12 | 1200 | 920 | 460 | 628 | 170 | 750 | 250 | 375 | 1070 | 10.6 | 3-phase | 74
R 170/1000/12 | 1200 | 1170 | 460 | 628 | 170 | 1000 | 330 | 500 | 1400 | 13.7 | 3-phase | 89
R 50/250/13 | 1300 | 434 | 340 | 508 | 50 | 250 | 80 | - | 450 | 1.9 | 1-phase | 22
R 50/500/13 | 1300 | 670 | 340 | 508 | 50 | 500 | 170 | 250 | 700 | 3.4 | 1-phase | 34
R 120/500/13 | 1300 | 670 | 410 | 578 | 120 | 500 | 170 | 250 | 700 | 6.6 | 3-phase | 44
R 170/750/13 | 1300 | 920 | 460 | 628 | 170 | 750 | 250 | 375 | 1070 | 12.0 | 3-phase | 74
R 170/1000/13 | 1300 | 1170 | 460 | 628 | 170 | 1000 | 330 | 500 | 1400 | 13.7 | 3-phase | 89

Notes

• Values outside the tube; difference to temperature inside the tube up to +50 K
• External dimensions vary with additional equipment; dimensions on request
• Connected load refers to the standard furnace and may increase with options