BINDER FD 23, drying and heating cabinet with forced air circulation, FD023-230V

The BINDER FD 23 FD023-230V is a high-precision drying and heating oven with forced convection, which serves as an indispensable instrument in pharmaceutical quality assurance, biotechnology research and materials science laboratories. At the heart of its technological superiority lies the patented APT.line™ preheating chamber technology. From a thermodynamic perspective, this system ensures homogeneous temperature distribution throughout the entire 20-litre chamber volume by directing the air flow in a controlled and symmetrical manner into the interior from both sides. For laboratory procurement officers and scientific staff, this means maximum reliability in the thermal treatment of samples, as spatial temperature gradients are physically minimised. The BINDER FD 23 FD023-230V thus ensures absolutely reproducible sample conditioning, which is of fundamental importance for the validation of SOPs in accordance with GLP/GMP guidelines.

Thermodynamic efficiency and forced convection

The effectiveness of the BINDER FD 23 FD023-230V is based on the targeted use of forced convection. Compared with cabinets featuring free convection (natural air circulation), this model offers a significantly higher heating rate and faster temperature recovery after the door is opened. This is particularly critical in time-sensitive drying processes or when heating media with high heat capacity. The fluid-dynamic airflow ensures that moisture is efficiently removed from the sample surface. Via a manually adjustable exhaust air flap, the user can precisely control the air exchange rate and thus the kinetics of mass transfer. In pharmaceutical research, for example, this enables the precise adjustment of the drying rate for sensitive powders or granules, in order to physically prevent thermal degradation or undesirable crystallisation processes.

Material resilience and ergonomic design

The interior of the BINDER FD 23 FD023-230V is constructed from high-quality stainless steel (grade 1.4301), which offers excellent corrosion resistance and chemical inertness. This is a key selling point for laboratories working with aggressive reagents or high levels of humidity during the drying process. The smooth interior surface, free from any protruding parts, allows for residue-free decontamination and cleaning, which minimises the risk of cross-contamination in multi-user settings at universities. Mechanical integrity is supported by a highly efficient insulating layer that physically limits heat loss to the outside. This not only results in high energy efficiency but also protects staff from burns on the appliance surface – an important aspect of health and safety in the hectic day-to-day life of a laboratory.

Cybernetic control and metrological reliability

The BINDER FD 23 FD023-230V is controlled via a microprocessor-based controller with an LCD display, which allows digital temperature setting with an accuracy of one-tenth of a degree. To ensure the safety of samples and equipment, an independent Class 2 temperature monitor (DIN 12880) is integrated. This acts as a cybernetic safety system: should the setpoint temperature be exceeded due to a fault, the visual alarm is triggered and the heating is switched off to prevent a thermal runaway scenario. For pharmaceutical companies requiring comprehensive documentation, BINDER offers optional software solutions and interfaces to transfer thermal profiles directly to a LIMS. This metrological precision makes the unit ideal for demanding applications such as the sterilisation of glassware or the thermal ageing of polymers under strictly controlled conditions.

Business benefits and sustainability

Finally, thanks to its durability and low-maintenance operation, the BINDER FD 23 FD023-230V offers an outstanding total cost of ownership (TCO). The robust ‘Made in Germany’ construction guarantees a long service life even when operated at full capacity on a daily basis. For educational institutions, the simple, intuitive operation is also an advantage, minimising the risk of operating errors by students. The compact design allows it to be installed even in small laboratory units, whilst the ability to stack multiple units maximises space efficiency within the laboratory. With this drying oven, you are investing in a system that combines physical precision with industrial durability.

Technical Details

Thermodynamics & Heating Capacity

• Temperature range: room temperature + 10 °C to 300 °C
• Spatial temperature deviation (at 150 °C): ± 2.2 K
• Temperature deviation over time (at 150 °C): ± 0.3 K
• Heating time to 150 °C: approx. 18 min
• Recovery time after 30 s door opening (at 150 °C): approx. 6 min
• Heat transfer: Forced convection (convection mode)

Metrology & Control Engineering

• Controller: Digital microprocessor controller with LED display
• Safety device: Class 2 temperature monitor (DIN 12880) with visual alarm
• Timer: Integrated timer function (0 to 99 h)
• Data readout: Visual display, digital setting

Mechanics & Chamber Infrastructure

• Internal volume: 20 litres
• Inner chamber material: Stainless steel 1.4301 (highly corrosion-resistant)
• External dimensions (W x H x D): 435 mm x 495 mm x 450 mm
• Internal dimensions (W x H x D): 222 mm x 285 mm x 300 mm
• Number of shelves (standard/max.): 2 / 3
• Max. total load: 25 kg
• Max. load per shelf: 12 kg
• Exhaust air management: Adjustable exhaust air flap (manual)

Electrical Engineering & Infrastructure

• Voltage: 230 V (AC)
• Frequency: 50/60 Hz
• Rated power: 0.8 kW
• Energy consumption (at 150 °C): approx. 160 Wh/h
• Protection class in accordance with DIN EN 60529: IP 20

Contents of delivery

• 1 x BINDER FD 23 FD023-230V drying cabinet
• 2 x chrome-plated insert grids (insert trays)
• 1 x mains cable for 230 V connection
• 1 x factory calibration certificate (at 150 °C)
• 1 x Operating instructions

Important note: Additional stainless steel shelves or a certified DQ/IQ/OQ validation service are not included in the standard scope of delivery and must be ordered separately if required.

Custom requirements & accessories

For operation in GMP-regulated environments, regular recalibration of the BINDER FD 23 FD023-230V is essential to ensure metrological traceability. We also recommend the use of perforated stainless steel trays for particularly small samples to prevent the laminar air flow from being obstructed. For data acquisition, external temperature sensors can be fed into the chamber via an optional feed-through. Please use our procurement service to configure your bespoke accessories package.