The LEIPA Group is an independent family business. For over 170 years it has stood for environmentally friendly processes and technologies in the area of paper and packaging, based on 100% recycling. The range of business activities in Schrobenhausen, where the company was founded, includes cartonboard and specialty paper segments, and also the LEIPA FlexPack business unit. The latter offers paper-based solutions in the area of flexible packaging.
LEIPA multi-ply grey cartonboard is the classic product for secure protection of valuable products in boxes and packaging. But it is also a popular standard solution for pallet covers or hardbound books. The environmentally-friendly material with grammages ranging from 300 to an impressive 950 g/m2 is extremely resistant and stable and is used in a wide range of applications.
The cartonboard machine at the Schrobenhausen site was previously supplied by three separate stock preparation lines, one for each of the three layers: top, interlining and back. Because the proportion of foreign matter and dirt in the recycled paper used was continuously increasing, the costs of operating and servicing the threefold system technology were increasing. For that reason, the company undertook a comprehensive modernisation project, combining the three stock preparation lines into one and making investments in new plant components and extensive automation technology. There were four main goals: increase operational reliability, make production more cost-efficient through new technologies, reduce maintenance costs, and improve deinking quality.
A high degree of automation is indispensable in a modern stock preparation system that requires availability around the clock, all year round. This is ensured by a modern control system and the right sensors. Because of the good experiences the company had already had with VEGA sensors, those responsible for planning and maintenance decided in favour of the VEGABAR 82 pressure transmitter as the standard instrument for level and pressure measurement in the new stock preparation system. The simple on-site adjustment and the robustness of the instruments were also decisive factors.
Especially in recovered paper processing, the deployed measurement technology is subject to extreme mechanical stresses caused by abrasive residues in the suspension or the vibration of refiners or standpipes of MC pumps. It is also subject to hydraulic shock resulting from quickly closing valves. Further challenges for every measuring system are varying stock densities and agitators in vats and stock towers. The internal cleaning of equipment components with aggressive chemicals, and external cleaning with high-pressure cleaners are additional factors that have to be reckoned with.
Sensors have to measure precisely and reliably in spite of these challenging conditions. VEGA understood the advantages of robust ceramic early on, and came up with a sophisticated sensor design utilising the dry, capacitive measuring cell, CERTEC.
High-purity alumina ceramic (99,9% Al2O3), which is second in hardness only to diamond, is used as the diaphragm material. This protects against abrasion, especially in cleaners, and ensures the long service life required for profitable continuous operation.
Differential pressure measurement made simple VEGA Controls SA
Pressure Measurement & Control
The VEGADIF 85 serves as an exemplary model of a differential pressure sensor. It combines universal applicability with high operational dependability and integrated overload protection, ensuring consistent performance even in the harshest conditions.
Read more...Smart pressure monitoring drives energy efficiency ifm - South Africa
Pressure Measurement & Control
The ifm PG17 electronic pressure gauge is part of the company’s next-generation PG series. It integrates IO-Link technology, enabling seamless, loss-free data transmission via a 24 V signal.
Read more...Small, inexpensive radar level transmitters VEGA Controls SA
Level Measurement & Control
Anyone who needs to keep processes running needs level measurement technology that measures reliably. However, what is needed is not always the most ‘fully featured’ solution, but the smartest one. This is exactly what VEGAPULS radar transmitters of the BASIC series do.
Read more...Electronic manometer with LED display ifm - South Africa
Pressure Measurement & Control
The new generation of PG type manometers are equipped with IO-Link and modern display units. Illuminated LED markings provide a quick overview of the current measured value. In addition to the various setting options for the display unit, IO-Link offers other advantages such as easy commissioning, quick sensor replacement and remote access options.
Read more...A fresh approach to dairy processing VEGA Controls SA
Level Measurement & Control
Ensuring the quality and safety of milk throughout the production process is of the utmost importance in the dairy industry. The VEGABAR pressure transmitters are suitable for hygienic applications. They are an asset in the dairy industry and have been used with success for measuring the milk level and the process pressure in storage tanks.
Read more...A cure for measurement headaches in contract manufacturing VEGA Controls SA
Editor's Choice
A contract manufacturing organisation provides support to pharmaceutical and biotechnology companies in the manufacturing of medications, formulations and substances. VEGA’s measurement solutions offer accuracy and reliability for monitoring levels and pressures during the manufacturing process.
Read more...Powering sub-Saharan Africa’s energy future VEGA Controls SA
Level Measurement & Control
Crude oil storage plays an important role in the energy infrastructure of sub-Saharan Africa. The management of crude oil storage in comes with numerous challenges, including safety concerns, environmental conditions and infrastructural limitations.
Read more...Pulp fiction or pulp precision? VEGA Controls SA
Sensors & Transducers
The density of fruit concentrate has a direct impact on the flavour, texture and overall quality of the final product. The VEGA Minitrac 31, VEGASOURCE 31, and the KV 31 mounting bracket present a failproof solution that effectively addresses the technical complexities associated with high temperature, viscosity and fouling.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version