Paint & Coatings Industry

Materials for surface coating represent extreme challenges to pump technology

The printing and ink industry represent one of the most demanding sectors for delivery systems, with areas of application including the reliable supply of abrasive paper fillers and corrosive gluing agents, along with the exact metering of high-viscosity printing inks and varnishes.

Background
One of the major problems facing conventional pumps is the lack of fluidity of the inks. It is not uncommon to see viscosities of 10,000 mPas or more, which means that achieving a continuous supply is very challenging and inferior pumping solutions can suffer under the stress and become blocked quickly.

Challenge
A renowned printing house was struggling with repeated breakdowns of the diaphragm pumps used to refill offset ink at roughly 10,000 mPas from the transport truck to the storage tank. Because of this inadequacy, the unloading process was being greatly delayed and the pumps needed maintenance work, often requiring them to be removed completely and dismantled, a labour intensive and time consuming task.

Solution
To increase performance, economy and reliability, the company decided to use our NEMO® progressive cavity pumps, a single-stage pump model with L-geometry rotor and stator allowing for a higher delivery rate at a lower differential pressure. The slim-line units with frequency inverter and smaller rotor:

  • Prevented excessive clamping thereby improving mechanical efficiency.
  • Allowed space for multiple pump installations.
  • Enabled easy access to the devices in case maintenance work should become necessary.
  • Ran more reliably and efficiently than the previously employed diaphragm pumps, which resulted in the unloading time for the ink being halved.


Positive displacement pumps from NETZSCH are used in various areas of the ink and paper industry for everything from transporting pigment sludge or additives, to processing fluids and binding agents.
Each scenario requires a different configuration for our pumps depending on their intended use, but the broad experience of our company’s pump experts in this diverse market always results in a suitable combination to resolve any problem.

Technical Data

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NETZSCHNEMO® progressing cavity pump
MediumOffset ink
Viscosity10.000 cP

Products

Pompa TORNADO® Rotary Lobe

Pompa NETZSCH TORNADO® yang bersifat self-priming, valveless, positive displacement dapat disesuaikan untuk memenuhi tuntutan proses dan aplikasi yang bersangkutan. Pompa – pompa tersebut dapat digunakan pada hampir semua media pada aplikasi untuk penggunaan secara intermiten/berselang, kontinyu, ataupun dosing. Keuntungan TORNADO® adalah kebutuhan tempat yang kecil karena desain yang terpadu, kinerja yang tinggi, dan kehandalan operasi yang tinggi, serta pump head dan bearing housing yang dapat dipisahkan dengan mudah. Pompa TORNADO® mudah untuk diservis dan dirawat; seluruh suku cadang yang bersentuhan dengan media dapat dijangkau tanpa perlu dilakukan pembongkaran saluran pipa ataupun pelepasan bagian motor.

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Pompa NEMO® Progressing Cavity

Pompa NEMO® Progressing Cavity dapat digunakan pada berbagai aplikasi dan industri secara luas untuk pengaliran secara kontinyu, bertekanan stabil, lembut, dan low – pulsation pada hampir berbagai jenis substansi. Salah satu keuntungan bagi pemakainya adalah karena pompa ini benar – benar merupakan pompa jenis valveless positive – displacement maka pompa ini juga dapat mengalirkan bahan berserat.

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NEMO® C.Pro®

The NEMO® N-Ipos CY C.Pro® Dosing Pump is a fully synthetic pump for the precise dosing of a great variety of chemicals in environmental technology and the chemical industry. Its synthetic construction makes it perfectly suited for the gentle and low-pulsation conveyance and dosing of aggressive or non-aggressive chemicals.


Literature