A simple guide to pumping deli salads

Everyone enjoys a delicious deli salad. However, producing all the appetizing variations that line the supermarket shelves in the necessary volumes and short delivery times, requires correctly applied pump technology. A smooth, trouble-free manufacturing process is a must as downtime can have costly implications both to the end product and production.

The following provides the answers to questions asked frequently by deli salad manufacturers looking to optimize their pumping operations.MasoSine pumps in deli salad production

What type of pump is best suited to deli salad production?

MasoSine pumps have been supplied to deli salad manufacturers worldwide for many years. They have become the de facto standard for handling the delicate ingredients used in deli salads - products such as chicken , egg and tuna, offering a low shear, gentle pumping action.

Will a MasoSine pump damage food solids or dressings?

Benefiting from large pumping chambers and the gentle wave action of the sinusoidal rotor, the low shear and gentle action of a MasoSine Pump is unrivalled in its ability to preserve and maintain the integrity of solids such as diced vegetables, fruit, nuts, coleslaw and eggs, as well as bases like mayonnaise and dressings. Specific pump model selection is dependent on the maximum size of the solids.

What about handling different viscosities?

MasoSine pumps are able to cope with viscosities that vary by up to 8 million centipoise, ensuring there is no impact on end product integrity and that the   packaged product looks appealing. What’s more, the superior viscous handling of deli salads mean these ingredients are no problem for MasoSine pumps.

What are the differentiating features of MasoSine pumps?

The MasoSine exclusive single shaft and sinusoidal rotor are the centerpieces of an innovative, simple design. With the shaft and rotor there is no need for the complex timing gears and multiple seals found on conventional rotary lobe pumps, for example. MasoSine pumps produce powerful suction (up to 0.85 bar), but with with low shear and gentle transfer capabilities.

Deli salad process diagram

What are the benefits of low shear?

The smooth, undulating contour of the unique MasoSine pump rotor transports deli salad blends through the pump without product compression, thus maintaining the product’s integrity, viscosity profile, texture, colouration and value – even at high flows.

Is pulsation an issue with MasoSine technology?

The single rotor design of MasoSine pumps maintains constant volumetric displacement throughout the pumping cycle, providing a smooth and consistent flow profile without the pulsation spikes associated typically with rotary pumps.

How do MasoSine pumps compare to other PD pumps?

Other positive displacement pumps, such as piston pumps, are prone to damaging solids, while AODD (air operated double diaphragm) pumps have a pumping action that frequently ‘splits’ bases such as mayonnaise. MasoSine pumps offer far-improved performance and reduced costs against pumps such as these.

Can energy bills be reduced by using a MasoSine pump?

Yes, MasoSine pump use up to 50% less energy for the same flow in comparison with other pump types.

Are they noisy?

Noise levels are reduced dramatically when using MasoSine pumps, as many users can testify. In fact, superior suction means that any noise from cavitation is virtually eliminated.

How quick are MasoSine pumps?

Popular products like deli salads need to be manufactured in high volumes, and due to the nature of the ingredients, shelf life is often less than a week. The success of MasoSine pumps has come about as a result of over 25 years of product innovation and development, and food plants will immediately see more speed and higher efficiency when using this technology. Another great feature of MasoSine pumps is variable flow rates, which can be adjusted to suit specific production requirements.

Can mobile containers and Pallecon containers be used?

Yes, high suction capability and no pulsing means that mobile containers present no problem for MasoSine technology. High suction also means that Pallecon containers can be used. 

Is it possible to reduce maintenance?

MasoSine pumps are simple, fast and economic to maintain thanks to their one rotor, one shaft, one seal concept. They have been designed to be fully maintainable in the field without the need for skilled labour. What’s more, parts are fully interchangeable between pumps, and overhauls can be performed inline within minutes, bringing the pump back to ‘as new’ condition. Gone are the costly repairs associated with sending pumps back to the factory for rebuild. 

What about cleaning?

MasoSine pumps, which offer 3A certification, provide full CIP (clean-in-place) ability and are compatible with strip-clean regimes.

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MasoSine range of process pumps