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Binder KB 720 cooling incubator, 727 l usable volume, temperature range 0 to 70 °C, 9020-0475

Product information "Binder KB 720 cooling incubator, 727 l usable volume, temperature range 0 to 70 °C, 9020-0475"

The Binder KB 720 is the second-largest model in the KB series and offers a usable volume of 727 litres within a temperature range of 0 °C to 70 °C. For those in the laboratory who regularly need to maintain a large number of samples, culture plates or several parallel test series at a constant temperature simultaneously, this compressor-cooled incubator provides ample space without compromising on control accuracy or process reliability.

Compressor cooling with natural refrigerant R-600a

The KB 720 is powered by an inverter-controlled refrigeration unit using the natural refrigerant R-600a. At 37 °C, the spatial temperature deviation is ±0.2 K and the temporal deviation is ±0.1 K; the maximum heat compensation is 640 W. The patented APT.line preheating chamber technology ensures uniform temperature distribution throughout the large interior by channelling the air over the outer walls on both sides. After the door has been open for 30 seconds, the set temperature of 37 °C is reached again after around 3 minutes; energy consumption is 255 Wh/h at 37 °C.

Typical applications

Cooling incubators such as the KB 720 are used wherever samples or cultures need to be maintained at a reproducible temperature below or close to room temperature; given its size, this model is particularly suitable for high sample volumes. Typical applications:

  • Microbiological incubation of large batches of bacterial, yeast and fungal cultures
  • Sterility tests and bacterial count determination in food analysis with high sample throughput
  • Environmental monitoring and water analysis in pharmaceutical quality control
  • Sample storage as a programmable ‘weekend fridge’ for unattended periods
  • Research institutions and testing laboratories conducting multiple parallel test series

Features and load capacity for everyday laboratory use

The interior of the KB 720 is made entirely of stainless steel; the inner door is made of metal oxide-coated safety glass and allows samples to be inspected without opening the door. A door heater prevents condensation build-up. Two stainless steel grid shelves are included as standard; the interior can be expanded to accommodate up to 16 grid shelves if required, each with a load capacity of 40 kg, with a maximum total load of 200 kg. A feed-through with an 80 x 45 mm opening and a silicone plug allows external sensor or measurement cables to be fed through. To ensure process reliability, an independent adjustable temperature monitor Class 3.3 according to DIN 12880, featuring visual and audible alarms, is integrated; an internal data logger records the measured values and can be read out via USB and Ethernet. A self-test function enables a comprehensive status analysis, and thanks to the simple programming of a second temperature setpoint, the KB 720 can be automatically switched to a lower holding temperature, for example for weekend operation. A hot-air disinfection routine also supports the cleaning of the interior between test runs.

Selection guide: choosing the right size

The KB series comprises six sizes ranging from 63 to 1,070 litres. The following overview provides a direct comparison of the usable volumes and external dimensions of all sizes.

KB 06563 l650 x 710 x 905 mm
KB 130127 l900 x 710 x 1,005 mm
KB 260262 l930 x 900 x 1,396 mm
KB 470472 l930 x 900 x 1,951 mm
KB 720727 l1,285 x 900 x 1,951 mm
KB 10601,070 l1,285 x 1,175 x 1,951 mm

With a capacity of 727 litres, the KB 720 is the second-largest model in the series. For those requiring even greater capacity, the Binder KB 1060 cooling incubator is the largest model available, offering 1,070 litres with a footprint about 30 % larger (1,285 x 1,175 mm instead of 1,285 x 900 mm).

Differences from the neighbouring series

For temperatures below freezing or above 70 °C, the Binder KB PRO 720 cooling incubator offers the same size with a temperature range of minus 20 °C to plus 100 °C and uses R-290 refrigerant. The KBECO series operates without refrigerant within the same 0 to 70 °C range; for example, the Binder KBECO 720 cooling incubator has a comparable volume. The KT series covers significantly smaller volumes, with a maximum of 163 litres.

Frequently asked questions before purchase

How much energy does the KB 720 consume during operation?
At 37 °C, energy consumption is 255 Wh/h; the maximum heat compensation is 640 W.

Can the KB 720 automatically switch to a different temperature at the weekend?
Yes, by programming a second temperature setpoint, the unit can be automatically switched to a lower holding temperature, for example for weekend operation.

What is the maximum number of grid shelves that fit into the KB 720?
Two stainless steel grid shelves are included as standard; the interior can be expanded to accommodate up to 16 grid shelves, each with a load capacity of 40 kg, if required.

Technical details

Temperature range0 °C to 70 °C
Usable volume727 l
Internal dimensions (W x H x D)1,011 x 1,250 x 575 mm
Temperature variation within the chamber (at 37 °C)± 0.2 K
Temperature variation over time (at 37 °C)± 0.1 K
Max. heat compensation (at 37 °C)640 W
Recovery time after door opening (30 s, at 37 °C)3 min
Energy consumption at 37 °C255 Wh/h
RefrigerantR-600a (natural refrigerant)
Connected load1.5 kW
Rated voltage220 to 240 V
External dimensions (W x D x H)1,285 x 900 x 1,951 mm
Unit weight (net, empty)285 kg
Grid shelves (standard/max.)2 / 16, stainless steel
Max. load capacity per shelf40 kg
Max. total load200 kg
Feed-through80 x 45 mm, with silicone plug
Adjustable temperature monitorClass 3.3 according to DIN 12880, with visual and audible alarm

Scope of delivery

  • 1x Binder KB 720 cooling incubator (9020-0475)
  • 2x stainless steel grid shelves
  • Operating instructions

From cooling incubator to plant growth chamber

The KB 720 accepts the Binder LED plant light module (8012-2439) and can thus be used as a plant growth chamber. In light operation, size 720 reaches a PAR photon flux density of 1,080 µmol/m²/s at 25 cm, 740 µmol/m²/s at 50 cm and 560 µmol/m²/s at a distance of 75 cm, with a far-red irradiance of 43 W/m² at 25 cm. The temperature range is reduced to 10 °C to 50 °C during light operation, the standard KB series does not offer humidity control at all, and an ICH or CO2 module is not available for this series. Matching grid shelves with U-rails for the 16 light strips carry item number 8012-2391; installation is carried out on site.

The modules are accessories and not included with the chamber. You will find them with prices under "Matching modules" on this page; more on our Binder page.

Individual requirements & procurement service

Genuine accessories are available for the KB 720, such as additional grid shelves, flexible silicone feed-throughs in further sizes for external sensors, or the APT-COM management software for connection to a data network. Calibration certificates and maintenance contracts can also be arranged if required. Do you require additional accessories, a bespoke configuration, or assistance in selecting the right cooling incubator for your application? Through our procurement service, we will be happy to assist you with procurement and configuration.

Volume: 727 l
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Matching modules

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Binder LED-Pflanzenlichtmodul 8012-2439, Lichtsteuerbox mit Programm-Controller
Binder LED plant light module for climate chambers and cooling incubators, 16 LED light strips, 8012-2439
Manufacturer number: 8012-2439

A Binder constant climate chamber or cooling incubator can be converted into a plant growth cabinet using the 8012-2439 LED plant light module, without the need to purchase a separate unit. The module produces lighting conditions that closely resemble natural sunlight and fits into cabinets from the KB, KB PRO, KBF and KBF PRO series with development stage E7. Installation is carried out on site by the customer or a service partner. Design and lighting control The Binder LED plant lighting module consists of 16 LED light strips, which can be positioned individually within the cabinet, and a lighting control box with its own programme controller. Each light strip has three separately controllable colour channels: sunlight-like cool white (SunLike, 6,500 K), sunlight-like warm white (SunLike, 2,700 K) and dark red phytochrome-controlled light (730 nm), which specifically activates the plant’s phytochrome system. All three channels can be dimmed independently of one another from 0 % to 100 %. Real-time programming is available for daily routines, either as a cyclical daily programme or individually for each day of the week, supplemented by a twilight function that gently fades the light on and off over a one-hour ramp rather than switching it on or off abruptly. An integrated ventilation function feeds 0 to 500 litres of ambient air per hour into the chamber, thereby maintaining the CO₂ level close to the ambient value required by plants for photosynthesis. The light module is powered by 120 V to 240 V at 50 or 60 Hz, regardless of the mains voltage of the climate chamber itself. Light output by cabinet size The light intensity depends on the cabinet size and the distance from the light source. With 100 % white light and all 16 light strips evenly distributed on a single plane, size 260 achieves a photosynthetically active radiation (PAR) of 1,660 µmol/m²/s at a distance of 25 cm. Size 470 achieves 1,540 µmol/m²/s at a distance of 25 cm, 990 µmol/m²/s at 50 cm and 730 µmol/m²/s at 75 cm. For the 720 size, the figures are 1,080, 740 and 560 µmol/m²/s at the three distances; for the 1060 size, they are 880, 610 and 480 µmol/m²/s respectively. In the largest available size, 1600, which is only available for the KB PRO and KBF PRO models, the values are 640, 470 and 380 µmol/m²/s. Distributing the 16 light strips across several levels reduces the light output accordingly: to around 50 % of the initial value with two levels, and to around 25 % with four levels. The maximum temperature during lighting operation is 60 °C for all sizes. Order grid shelves separately The LED plant light module does not include any grid shelves for mounting the light strips. However, we offer grid shelf sets with telescopic rails (size 260/470: 8012-2384, size 720: 8012-2385, size 1060: 8012-2386, size 1600: 8012-2387) as well as grid shelf sets with U-rails, which Binder expressly recommends for mounting the light strips (size 260/470: 8012-2390, size 720: 8012-2391, size 1060: 8012-2392, size 1600: 8012-2393). The number of additional grid shelves required depends on the desired lighting configuration. For the basic configuration without an additional level, the two standard grid shelves supplied with the cabinet are sufficient; for one or two light levels, at least one additional set is recommended; for full distribution across several levels, up to six sets are required. An additional grid shelf between the light strips and the sample material also creates a gap of around 10 cm, thereby reducing thermal effects on the samples. Typical applications Plant growth experiments with day-night simulation via real-time programming Germination and seedling experiments with reduced light intensity on a single light strip level Photoperiodism and phytochrome studies via the separately dimmable dark red channel Retrofitting existing Binder E7-generation climate chambers and cooling incubators to create plant growth chambers, without the need for additional equipment If a higher CO₂ concentration is also required, for example to accelerate plant growth, the LED plant light module can be combined with a CO₂ gassing module. According to the operating instructions, both accessories can operate simultaneously within the same cabinet, unlike the ICH light module, which occupies the CO₂ connection. Technical details Configuration16 LED light strips, individually positionable Colour channels per light stripCool white 6,500 K, warm white 2,700 K, dark red 730 nm Dimming range per channel0 % to 100 % Ventilation function0 to 500 litres of ambient air per hour PFR PAR, size 260 (25 cm)1,660 µmol/m²/s PFR PAR, size 470 (25/50/75 cm)1,540 / 990 / 730 µmol/m²/s PFR PAR, size 720 (25/50/75 cm)1,080 / 740 / 560 µmol/m²/s PFR PAR, size 1060 (25/50/75 cm)880 / 610 / 480 µmol/m²/s PFR PAR, size 1600 (25/50/75 cm)640 / 470 / 380 µmol/m²/s Maximum temperature in light operation60 °C Compatible series (development stage E7)KB, KB PRO, KBF, KBF PRO Power supply for light module120 V to 240 V, 50/60 Hz Scope of delivery 16 LED light strips with retaining clips for clipping into standard grid shelves Lighting control box with programme controller Mains cable Power distribution cable for the LED light strips PU tubing for the air supply Operating instructions Grid shelves for mounting the light strips are not included. These must be ordered as separate accessories; see the section above. Individual requirements & procurement service We can assist in putting together the right combination of climate chamber, lighting module and grid shelves, for example if the existing size or series is unclear or if multiple lighting levels are planned. The procurement service is also available for other Binder accessories such as CO₂ gassing modules, water supply systems or sample temperature control sensors. Details can be found on our Services page.

Manufacturer's RRP: €5,278.00