Memmert IN55 incubator with natural convection, SingleDISPLAY, 53 litres, +20 °C to +80 °C

The Memmert IN55 incubator (MPN IN55) represents a highly optimised process-engineered, mechanically robust and thermally uncompromisingly precise system solution for the controlled incubation, thermal conditioning and temperature control of samples in the laboratory. With a customised internal volume of 53 litres, this professional incubator operates using gentle, natural convection (Convection N). The deliberate omission of forced air circulation makes the system the ideal choice for microbiology, cell culture research or pharmaceutical analysis, as sensitive samples or highly volatile media are reliably protected against the dreaded drying out or transient air turbulence.

Intuitive SingleDISPLAY for error-free temperature control

The control system of the incubator is based on Memmert’s innovative SingleDISPLAY technology. Via a high-resolution TFT colour graphic display, laboratory staff can keep a constant eye on all critical process parameters, such as setpoint and actual temperature, the position of the electronically controlled air damper, and transient time management. A high-precision Pt100 temperature sensor (DIN Class A) with 4-wire measurement continuously monitors the thermal dynamics inside the chamber. The integrated microprocessor control effectively prevents thermal overshoot of the target temperature and ensures uniform heat distribution throughout the entire working chamber.

Excellence in materials science and sample-friendly visual inspection

Both the outer housing and the entire interior are manufactured from a high-quality, hygienic and fully recyclable stainless steel alloy. The textured stainless steel used on the exterior proves to be extremely scratch-resistant, robust and resistant to aggressive cleaning agents even under harsh, continuous use. A key ergonomic feature of the IN55 is the full-surface internal safety glass door. It allows the user to monitor the cultures visually at all times without having to open the external stainless steel door. This ensures that the internal thermal equilibrium remains undisturbed, and reliably prevents dangerous temperature drops or the formation of condensation.

Technical details

Thermodynamics & Temperature Data

• Operating temperature range: At least 5 °C above room temperature up to +80 °C
• Adjustable temperature range: +20 °C to +80 °C
• Setting accuracy / resolution: 0.1 °C
• Temperature sensor: 1 high-precision Pt100 sensor (DIN Class A) in a 4-wire configuration
• Convection: Natural convection (pure heat transfer without disruptive air flow)
• Fresh air supply: Electronically adjustable air damper, controllable in 10% increments

Capacity & Geometry

• Internal volume: 53 litres.
• Internal dimensions (W x H x D): 400 x 400 x 330 mm
• External dimensions (W x H x D): 585 x 704 x 514 mm (depth excluding door handle)
• Wire mesh shelves as standard / maximum: 1 included / up to 4 can be inserted
• Maximum load per wire shelf: 20 kg
• Maximum load capacity of the entire unit: 80 kg

Electronics, timing control & safety

• User interface: SingleDISPLAY (high-resolution TFT colour graphic display with touch control)
• Timer: Digital countdown timer, adjustable from 1 minute to 99 days
• SetpointWAIT function: the process time only starts reliably once the exact setpoint temperature has been reached
• Calibration function: Three freely selectable temperature values adjustable directly on the controller
• Overtemperature protection: Electronic temperature monitoring TWW (protection class 3.1) and mechanical temperature limiter TB (protection class 1) for autonomous heating circuit shutdown in the event of a fault

Materials & Electrical Components

• Housing material: Textured stainless steel, rear panel made of galvanised sheet steel
• Interior material: High-quality, easy-to-clean and corrosion-resistant stainless steel (grade 1.4301)
• Inner door: Full-surface safety glass door
• Voltage / Frequency: 230 V (+/- 10 %), 50/60 Hz
• Power consumption: approx. 1000 watts (heating output energy-optimised)

Contents of delivery

• 1 x Memmert IN55 incubator (MPN: IN55)
• 1 x stainless steel wire rack (electropolished)
• 1 x factory calibration certificate (calibrated as standard at +37 °C)
• 1 x mains cable
• 1 x Detailed operating instructions / installation guide

Customised requirements & accessories

To ensure the Memmert incubator is optimally adapted to your specific laboratory processes and validation guidelines, we offer the following system accessories:

• Additional fittings: Further stainless steel grids or perforated stainless steel sheets to maximise floor space when handling high sample volumes.
• Process validation: Qualification documents (IQ/OQ documentation) including application-specific multi-point temperature measurement for audited GLP and GMP laboratory environments.
• Ergonomic setup: Sturdy laboratory base frames or practical stacking sets for the safe, space-saving vertical integration of two Memmert units. Use our technical procurement service to configure your temperature control infrastructure.