MFR and MVR measured with minimum effort

Whether it's 24-hour/high-throughput operation, mid-level throughput, or cost-effective, stand-alone, low-throughput, manual testing, three new extrusion plastometers from Zwick Roell (Ulm, Germany) offer operator-friendly options for measuring melt flow rate (MFR) and melt volume rate (MVR).

Zwick goes with the flow with various options for MFR and MVR measurement needs.

The high-throughput Aflow instrument that is a member of the vendor's Xflow Series features operator-friendly automatic test sequences, while the Mflow handles mid-level throughput and delivers faster, more convenient determination of MFR and MVR in quality assurance and goods inwards checks. The low-throughput Cflow option rounds out the latest series upgrade.

The Aflow extrusion plastometer offers defined, adjustable precompacting of the test material. Its automatic parameter control (APC) optimizes test parameters for maximum measuring accuracy, while its integral cleaning function makes life easier for the operator. All common worldwide standards, including ISO 1133 and ASTM D 1238, are supported.

Further, Zwick's Xflow extrusion plastometers address problems created by laborious and potentially dangerous manual weight loading in traditional instruments. While the Mflow benefits from an innovative modular system that employs an auxiliary unit to provide program-controlled weight positioning and removal, the new Aflow avoids traditional weights altogether, replacing them with cutting-edge force management. This new system automatically controls stepless adjustment of test loads up to 50 kg, eliminating operator influence and making melt index determination faster and more reliable.—mpweditorial@cancom.com