Melt Flow Indexers

Introduction to Tinius Olsen Melt Flow Indexers

Tinius Olsen's primary Melt Flow Indexer models include the MP1200 and the newly introduced MP1500.

These models are designed to comply with international plastics testing standards, including ASTM D1238 and ISO 1133-1 & 2, for measuring Melt Mass-Flow Rate (MFR) and Melt Volume-Flow Rate (MVR).

The key features of each model are outlined below:

1. MP1200 Series (Current Flagship Model)

The MP1200 Series is a leading high-end melt flow indexer designed for precise and reliable plastics testing. Equipped with a three-zone heating system and a touchscreen interface, the series is available in two versions based on the loading and operating methods:

- MP1200 (Manual Version): Test weights must be manually placed and changed by the operator. The standard configuration supports Procedure A of ASTM D1238, which measures Melt Mass-Flow Rate (MFR) using the manual cut-and-weigh method.

- MP1200M (Motorized/Automatic Version): Equipped with a motorized weight lift system, allowing operators to control the lifting and lowering of test weights through the touchscreen interface. This significantly improves operational safety, convenience, and testing repeatability.

- Optional Upgrades: A Programmable Piston Displacement Transducer (PPDT) can be added to support Procedures B and C for Melt Volume-Flow Rate (MVR) testing and melt density calculations.

2. MP1500 Series (Next-Generation Weightless Technology)

The MP1500 represents Tinius Olsen's latest generation of melt flow indexers. Its most significant innovation is the elimination of traditional physical dead weights.

- Load Cell-Based Control: Instead of conventional gravity-based weights, the MP1500 utilizes a high-precision load cell combined with a PID-controlled feedback drive system to apply and regulate the required testing force.

- Key Advantages: By eliminating the need to manually handle heavy test weights, the MP1500 significantly reduces occupational safety risks, simplifies testing procedures, and minimizes operator-related variability. In addition, its integrated Horizon data analysis software enables digital test data management, streamlined analysis, and improved testing efficiency.