Overview Of Peristaltic Ink Pumps

A peristaltic pump is a device that creates a pressurized flow by using rotating rollers against its special flexible tubing, which is compressed at several points in contact with the rollers (or shoes). Peristaltic ink pumps are widely being used in printing machines especially for controlling problems related to ink delivery.

Components And Workings Of Peristaltic Ink Pumps

Peristaltic ink pumps follow the working mechanism of peristaltic pump devices that carry a pump head, drive, and special flexible tubing in which the medium (ink) is moved with each rotating motion. The pump head can have a specified number of rollers. Material of the tube and its length can also be specified, all depending on the customer’s requirements. The tubing, often made of silicon or other polymers, can be replaced or disposed. In principle, flow rate of the ink is proportional to the rotation of the rollers. The flow rate also depends on the inner diameter of the tube and the viscosity of the ink being used. The pumps may be operated manually or by a battery.

Advantages Of Peristaltic Pumps

Peristaltic ink pumps are very useful in using more viscous inks, adhesives and coatings. These are also ideal for sheer sensitive liquids. A variety of models with the feature of variable speed allow controlled ink flow. Modern peristaltic ink pumps are equipped with inverter drive units, which allow the user to plug the pump in and control the speed as well as the direction of flow by a simple switch mechanism.

Unlike other pumps, peristaltic ink pumps do not need any valves and seals. As a result, no maintenance is required. Due to its ease of circulating ink, they save both time and cost. Besides circulating ink, these can also be used for removing excess varnish for recirculation.

These pumps come down with wash down capabilities. They are reversible and can be used effectively for cleaning the hose or tube (which is disposable).

In these pumps, the fluid cannot contaminate the pump. This quality enables them to handle abrasive and aggressive fluids and makes them a cost-effective solution for difficult pumping applications.

The customer has single head and dual head pump options as suit his/her purpose.

Prices

Different models vary in their range of prices depending on their components, accessories, and manufacturers. PumpBiz sells 4.5gpm pumps, operated by a household voltage of 230 V, in the price range of $1000 to $1200.