Dosing, conveying and filling under high pressure

High pressures are often necessary for the precise dosing of small quantities of high viscous pharmaceutical products such as ointments, creams and gels. These high pressures are required to fill viscous media through small openings in primarypackaging, such as syringes, or to optimize thread breakage. Being able to dispense without pulsation, despite the high pressure, is also essential for applications such as supplying extrudates to the extruder (using the Hot Melt method) or supplying coatings to the spray nozzle. For these applications, the Pharma Dispenser from ViscoTec is particularly suitable due toits outstanding pressure-stability under high pressure.

Dosing of abrasive fluids into tubular bags

The safe processing and precision filling of ClimSel - a salt-based mineral (phase change material or PCM) into tubular bags.

Phase change materials are materials used in thermal energy storage and in cold storage. They are filled into different sized tubular bags at Climator.

ViscoTec Pharma Dispenser VPHD on the test

With nearly 140 years of success, Henkel holds globally leading market positions both in the consumer and industrial sectors and is well known for brands such as Persil, Schwarzkopf and Loctite. In itsworldwide operating business area“Laundry & Home Care”,Henkel was searching for an optimal dosing solution for their products.

ViscoTec 30,000th filling pump in operation at Bayer

Thanks to its extensive range of services, professional consulting and high-quality, technologically advanced products, ViscoTec convinces in various application sectors. At the end of 2015 there was an extra reason to celebrate: the dosing machine specialist has sold the 30,000th pump from its portfolio! This pump refers to the Pharma Dispenser, more precisely a 3VPHD8, with a dosing volume of 0.35 ml per revolution, and is particularly suitable for high precision filling of small amounts – independently from viscosity. Due to the high requirements of process safety, repeatability, precision and cleanability in the medical, biotechnical and pharmaceutical sectors the filling pumps were developed inclusive an hygienic encapsulated servo drive and control unit.

Cleanest dosing results with high viscosity pharmaceuticals

To achieve a precise dosing it is a basic requirement after each successfully filling of a packaging unit that the thread must tear off on a defined and clean manner. Such effect is mostly given with aqueous liquids – but for high-viscosity products, so called semisolids, just rarely. Many products like creams, gels and ointments pull long threads from the end of the dispensing needle to the particular packaging unit. Uncontrolled and unwanted dripping of low viscous product from dosing needles can occur with certain parameters (for example dosing needle with wide diameter, pressure release over the dosing needle between the dosing shots).

Precise filling of highviscosity semisolids

ViscoTec Pharma Dispensers enable highly accurate dosing of various media with a high degree of process reliability – ranging from low to high viscosity, with minimal product loss.

In order to raise the levels of safety and effectiveness of pharmaceuticals in clinical studies, the pharmaceuticals must be delivered under GMP conditions. This prevents crosscontamination and the ingress of other impurities, thus ensuring meaningful results. In a "Pharmavize" project, implemented by ViscoTec Pumpen- u. Dosiertechnik GmbH, the Pharma Dispensers convincedwith minimized product loss due to high precision dosing results and excellent repeatability. "Pharmavize" is a specialist in pharmaceutical development services, and provides support to its customers all the way from the preclinical phases to the followup once products have been approved.