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Basic model melt plastometer

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article image Designed for manual testing.

TINIUS Olsen, represented by Power Parameters , has introduced a series of three melt plastometers which are characterised by degrees of automation available.

The Tinius Olsen MP600 is designed for manual testing and is the basic model. It can be expanded at initial purchase or at a later date by the addition of the PPDT-600 automatic timing switch allowing the MP600 to perform MFR and MVR tests utilising procedure B.

A further addition which can also be added later is the MWLD-600 motorised weight support permitting automation of the testing cycle.

The Tinius Olsen MP600 melt plastometer performs tests in accordance with specifications including ASTM D1238 and D3364, ISO 1133, BS 2782, DIN 53735, JIS K7210 and similar methods.

Temperature control is achieved via a two-zone PID controller providing a spatial temperature variation of ±0.25ºC. The timer accuracy is 0.001 seconds and test results are displayed on a 4-line, 20 character/line fluorescent vacuum display.

The PPDT-600 automatic timing switch, by means of a precision optical encoder, enables piston positioning measurement to better than 0.025 mm. Programmable starting positions and piston travel distances permit up to 10 captures in a single test. In addition, flow rate (FR) and volume rate (VR) for each capture are calculated.

Melt density is calculated using a cut-off weight and built-in subroutine method. Displays include real time read-out of piston height and readout choices including apparent shear stress, shear rate, and viscosity.

The motorised weight (MWLD-600) automates the test cycle by positioning the weight support to a pre-selected height with application of the load after a preheat interval. The automatic swing-away weight platform provides for easy access when cleaning is required.

Other Tinius Olsen testing machines for the plastics industry cover a large range of tests including Charpy and Izod pendulum impact testing, heat deflection temperature and Vicat softening point testing.

Charpy and Izod tests can be conducted with available energy levels to 25 Joule. Heat distortion and Vicat testing can be conducted to 300 degrees Centigrade.

Of particular interest to a broad spectrum of Australian industry are the Tinius Olsen bench-top single- and dual-column testing machines covering between them the range frame capacities from 1kN to 50kN.

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