Heating tube furnace RSRC series

for general applicationslaboratoryvacuum

Overview
The RSRC rotary tube furnaces are designed for short‑time heating of bulk material moving continuously through a slightly inclined rotating tube. Material is fed at the top, traverses the heated zone and discharges at the lower end. Residence time is set by tilt angle, rotation speed and tube length. Closed feeding enables operation in defined atmosphere or vacuum. Work tubes are selectable by process and temperature requirements.

Standard equipment

• Max. temperature options: Tmax 1100 °C (quartz working tube, thermocouple type N) and Tmax 1300 °C (ceramic C 530 working tube, thermocouple type S)
• Solid state relays for low‑noise heating
• Heating elements on support tubes for free radiation
• Dual‑shell ventilated stainless steel housing for low outer temperature and high stability
• Non‑RCF insulation materials (no refractory ceramic fibre)
• Adjustable drive approx. 0.5–20 rpm; digital display for tilt angle
• Split‑type furnace housing (opening temperature < 180 °C) for easy tube change
• Compact base frame with manual spindle crank for tilt adjustment, integrated switchgear and castors
• NTLog Basic for process data logging via USB; B500 touch controller (5 programs × 4 segments)

Function and equipment (additional details)
The rotating, slightly inclined working tube controls throughput by angle, rotation speed and tube length. Optional closed feeding/discharge systems permit processing under protective gas or vacuum. Multiple working tube materials (quartz, ceramic, metal) are available depending on application and Tmax.

Additional equipment / Options

• Charge control with temperature measurement in the working tube
• Three‑zone control to optimize temperature uniformity
• Alternative working tubes and quartz batch reactors (Tmax 1100 °C)
• Higher temperature options up to 1500 °C on request
• Vibrating channel or powder discharge tube (suitable for processes in air)
• Continuous feeding system (≈5 L) under defined atmosphere/vacuum: stainless steel funnel with electric vibrator; electrically driven screw conveyor (pitch 10/20/40 mm, 0.25–20 rpm); laboratory glass collecting bottle
• Gas supply packages (e.g. package 26 for non‑flammable gases, package 4 for hydrogen) — vacuum package down to approx. 10−2 mbar (depending on pump)
• Process control and documentation via VCD software package

Technical specifications (selection)
Model | Tmax (°C) | Outer W (mm) | Outer D (mm) | Outer H (mm) | tube Ø (mm) | tube length (mm) | heated length single zoned (mm) | heated length three zoned (mm) | Connected load (kW) | Connection | Weight (kg)
RSRC 80/500/11 | 1100 | 1770 | 1050 | 1310 | 80 | 500 | 170 | 250 | 6.7 | 3‑phase | 305
RSRC 80/750/11 | 1100 | 2020 | 1050 | 1360 | 80 | 750 | 250 | 375 | 10.8 | 3‑phase | 340
RSRC 120/1000/13 | 1300 | 2270 | 1050 | 1360 | 110 | 1000 | 330 | 500 | 13.9 | 3‑phase | 350

Characteristics / technical data

• Series: RSRC (rotary tube furnaces for continuous feed)
• Tube diameters: Ø 80 mm, Ø 110 mm; tube lengths: 500 / 750 / 1000 mm
• Rotation speed: approx. 0.5–20 rpm; manual tilt adjustment with digital angle display
• Controller: B500 touch; NTLog Basic for USB logging; VCD software option
• Feeding options: vibrating hopper, screw conveyors (10/20/40 mm pitch), collecting bottle
• Atmosphere: ambient air, defined protective gases, hydrogen packages, vacuum down to approx. 10−2 mbar
• Construction: ventilated dual‑shell stainless steel housing; non‑RCF insulation