Posted to News on 5th Nov 2008, 11:29
Micro annular gear pumps handle aggressive media
Excellent resistance to aggressive and corrosive media and long service life are the key features of the new MZR 7255 micro annular gear pumps, recently introduced by Michael Smith Engineers. This hermetic sealed and chemically inert series of pumps utilises rotary micro annular gear technology, which ensures precise dosage and low pulsation, so it is particularly suitable for pharmaceutical applications where the trend is towards smaller, more efficient production lines.
For example, many pharmaceutical companies would previously manufacture products in batches on larger production facilities, meaning equipment would be idle for longer periods. With the introduction of pumps like the MZR, smaller volumes of product can be manufactured without compromising accuracy, which suits the demand for smaller manufacturing plants. As a result, smaller plants can be run continuously, which helps to maintain product consistency in addition to contributing to savings in space and running costs.
High-specification materials
The MZR 7255 pump features rotors, bearings and shaft components made from materials such as ceramics and SSiC (sintered silicone carbide) and these materials, combined with a magnetic coupling, enable the pump to operate effectively in the most demanding fluids transfer applications.
Typical applications are varied and include liquid sampling and micro-reaction in chemical engineering, dosing additives, spray technology, inks and paint dosing in production systems and DNA analysis and insulin dispensing in analytical and medical and biotechnology applications.
Measuring 146 x 70 x 72mm, these pumps weigh approximately 3300g. They incorporate a precision motor and easy-to use control functions. Suitable for flows from 0.048 ml/min up to 288 ml/min, the pumps deliver a maximum system pressure of 80bar. Note that smaller models are also available in the MZR range, weighing as little as 56g and measuring 13mm diameter by 75mm long.
