Product category:
Extrusion machines
News Release from: Hydramotion | Subject: Polymer melt viscometer
Edited by the Manufacturingtalk Editorial
Team on 19 September 2007
Polymer melt viscometer works at
extruder head
A compact on-line polymer melt viscometer can be directly installed on the extruder die head, so there is no nee to divert any part of the flow.
A compact on-line polymer melt viscometer scan be installed directly on the extruder die head, said Hydramotion, with no need to divert any part of the flow The ViscoMelt 5000 Extruder Viscometer has a single all-welded probe with a sensing tip just 7mm across, making it easy to use with the industry standard 1/2in-20 UNF fitting
This article was originally published on Manufacturingtalk on 2 Nov 2005 at 8.00am (UK)
Related stories
Polymer melt viscometer resists harsh conditions
Polymer melt viscometer gives reliable, uninterrupted performance under high temperature, pressure and viscosity conditions with virtually no maintenance.
Portable viscosity measurement made on site
Portable process viscometer can be used with any volume of fluid to give instant spot measurement of viscosity in the field, factory or lab without requiring any on-site set-up or calibration.
Viscosity measurement website expanded
Hydramotion has added sixteen new pages to its website, offering visitors valuable information, free downloads and an interactive viscosity units conversion table.
Installation is simple and takes minutes.
It will often be possible to install the viscometer on an existing port, so no new mounting will be required.
The viscometer is engineered so that the tip of the probe reaches the centre of the extruder pipe with minimal impact on flow.
For the first time, polymer manufacturers will be able to monitor melt viscosity in real time at the heart of the die head with minimum fuss.
The ViscoMelt requires no on-site calibration, has no moving parts, seals or bearings, and maintenance is virtually zero.
Viscosity is measured continuously in real time at pressures up to 200 bar (2900 lb/in2) and at temperatures up to 400 deg C (752 deg F) without requiring any special cooling.
Sensitivity is high and repeatability is excellent.
The intrinsically safe version is certified for use in Zone 0 hazardous areas (explosive atmosphere continuously present), equivalent to Class I Div 1 Group A.
Outputs include a 4-20mA analogue viscosity signal and a serial data link, enabling the instrument to be hooked up to a viscosity monitoring or control system.
The ViscoMelt is ideal for detecting viscosity changes resulting from switches in compounding formulation or variations in the degree of polymerisation.
The ViscoMelt 5000 viscometer is already being successfully deployed at a polyamide production facility in Germany, where it is providing much more frequent and rapid monitoring than is possible using off-line methods.
The results are already showing through in improved process control and enhanced product quality.
Continuous in-process monitoring of melt viscosity reduces costs and leads to greater efficiency. Request a free brochure from Hydramotion ...
• Hydramotion: contact details and other news
• Email this article to a colleague
• Register for the free Manufacturingtalk email newsletter
• Manufacturingtalk Home Page
Search the Pro-Talk network of sites
