WKT-450E Melt Flow Indexer

Multi-segment (2-segment) temperature control with two platinum resistance sensors and two independently controlled heating jackets; high-precision intelligent PID regulation with adjustable heating ramp rate;

Temperature resolution of 0.1°C, temperature uniformity of 0.2°C, temperature stability within 0.5°C over 24 hours, and displacement sensor resolution of 0.001 mm;

Over-temperature protection device;

Integrated manual/automatic cutting with freely adjustable cutting time (0-999) and cutting count (0-999);

Choice of the mass-based (MFR) or volume-based (MVR) method, or both simultaneously, with calculation of the flow rate ratio; both methods start testing when the piston rod reaches a preset position;

Built-in temperature-stability alert and a 240-second preheating countdown (as specified in GB 3682) with an audible signal on completion; ASTM and other preheating times can also be set;

Built-in melt index test conditions for a wide range of plastics for quick recall, reducing tedious workload, plus storage of the most recent test conditions and results;

Attractive appearance, rational design, stable performance and easy operation;

Built-in micro printer for convenient printing of test data;

High-precision touchscreen controller with a 4.3-inch display; stores and prints the latest test conditions and data. The test print menu settings include test time (system default), operator, material name, test method, test conditions (temperature, weight, cutting interval), test result data, and manual OK/NG judgment of results;

RS232 or USB interface reserved for computer connection, allowing instrument control from a PC and transfer of test data for storage;

Weights can be loaded manually, or automatically raised and lowered via a stepper motor driving a ball screw.