Highest pump quality for continuous cultures

The tubing economy is such that the LAMBDA PRECIFLOW peristaltic pump is paid back after the use of only 80 m of tubing. Thus, this is the only pump on the market, which saves more money than it costs!

Features of the LAMBDA peristaltic pumps:

• Most compact peristaltic pumps of this type on the market
• Large range of flow rates from 0.01 to 10'000 ml/hour
• Greatly extended tubing life with decreased pulsation and very economic in use
• Large digital speed setting range from 0 to 999
• New motor technology and virtually noiseless operation
• Flow rate programming (up to 99 steps) and automatic switch-on and switch-off without using any timer
• Extensive remote controls
• Access to reaction kinetics by using the Pump-Flow INTEGRATOR (Flow INTEGRATOR reveals valuable culture information)
• Low voltage plug-in power supply for maximum safety
• RS-485 or RS-232 interface (optional)
• PNet control software (optional)

More about precise and reliable peristaltic pumps

It is a big temptation for any producer of fermenters and bioreactors to decrease the unit cost by supplying low cost, fixed speed peristaltic pumps using only one size of tubing. Often such pumps are not reliable and the users finally don't use them and buy additional external pumps instead. Recently, even low-cost "nut-shell dimension" peristaltic pump heads have appeared on the market. LAMBDA disagrees with these trends, because the peristaltic pump quality and reliability is a crucial factor, which strongly affects the quality and productivity of the cell culture work.

Both, costs of laboratory infrastructure and personnel costs, are so high today that if a culture has to be repeated after several weeks of experiment just because a peristaltic pump defect the financial and time loss will be so elevated that dozens of high quality pumps could be bought with it. Thus, the economy on low cost peristaltic pumps is a very bad one!

After having made a lot of bad experiences with many commonly available peristaltic pumps, LAMBDA developed new peristaltic pumps with special mechanics, which is gentle to the tubing.

As a consequence the lifetime of the tubing (even lowest cost silicone tubing) is greatly extended and the flow rate is kept constant for many weeks. The risk of tubing rupture or other malfunction has been considerably reduced. The flow rate of LAMBDA peristaltic pumps can be varied in the ratio 1:1000. For example, during the addition of acid the peristaltic pump turns at full speed and reduces the speed as the preset value of pH is being attained. The regulation by such a "soft landing" is much more precise than by merely switching on and off fixed speed pumps.

The worst peristaltic pumps are those which require tubing with stoppers (2-stop or 3-stop tubing) or tubing clamps. This only shows that their mechanics is not good and draws the tubing inside the peristaltic pump head. Moreover, these special tubings are very expensive. LAMBDA peristaltic pumps work well with low cost tubing. The economy obtained by using low cost tubing instead of tubing with stoppers or expensive special tubing material formulations pays the peristaltic pump back after the use of only about 80 m of tubing!