Products » Testing Systems » Rheometers & Melt Flow Testing Systems » Melt Flow Index Testers

Melt Flow Index Testers

Extrusion Plastometers for Rapid Incoming Material Acceptance and Efficient Process Control

Extrusion Plastometers for Rapid Incoming Material Acceptance and Efficient Process Control

Instron® MFi Series of melt flow index testers are specifically designed for easy and accurate measuring of Melt Flow Rate (MFR) and Melt Volume Rate (MVR) according to Melt Flow Rate testing procedure A, procedure B, and procedure C determined by ASTM D1238 and ISO 1133 standards.

Why Melt Flow Testing Optimizes Your Productivity

Melt flow testing is simply a measure of the flow of a polymer when melted. The result of a melt flow test, called the melt mass-flow rate (MFR) or melt volume-flow rate (MVR), is defined as the amount of mass or volume of a polymer that flows through a small die at a specified temperature and pressure.

Learn More

Bring Your Products To Market Faster

Accelerated expectations for rapid material processing and delivery continue to ride. Avoiding production bottlenecks is a key to secure your profit and gain a competitive advantage in the market. The advanced technology of Instron new Melt Flow Index Testers minimize costly errors and increase your productivity.

Hand pressing the red start/testing tile on the Instron MFi5 touchscreen interface. | Instron

Smart User Interface
Create a test method with just 3 inputs and see real time graphs (MFR/MVR vs. individual measurements) and test results

Instron MF15 control panel with a small display showing 'HELP #25 - Test home page' text. | Instron

Live Help
Available for each screen it supports you to perform error-free tests while reducing new operators trainings

Close-up of a red rotary knob on a black metal machine housing with bolts and fittings, part of a precision tool or industrial machine | Instron

High Flow Solutions
Light piston and automatic die plug opening assist you in selecting the perfect quantity of high-flow resin while reducing materials waste and component maintenance

Monitor displaying the Instron Bluehill Melt splash screen with three colored tiles: Method (blue), Analysis (green), Admin (orange). | Instron

Bluehill^® Melt Software
Avoid unintended interactions when running parallel tests: create and distribute Testing Methods towards several different Instron Melt Flow Testers – Receive and analyze – Centralize print and export LIMS

Industrial material testing machine with a user adjusting the upper grip while a laptop sits on a red table nearby. | Instron

Self Installation
Save time and costs. Get your MFi ready for testing activities by self installing it with the support of our instruction videos

Which Melt Flow Index Tester is Right for the Growth of your Business

The MFi5 is a compact instrument that allows rapid inspection of the melt mass flow rate of plastics to Procedures A, B, and C.

Learn More

The MFi7 is a modular instrument for a growing volume of Procedure A, B, and C tests, featuring advantages attributed to automation.

Learn More

Specifications

	MFi5	MFi7
Type of Test	Methods A, B, C	Methods A, B, C
Test Temperature Range	50°C to 450°C	50°C to 450°C
Piston Travel Transducer
PTT Resolution	<0.005 mm	<0.005 mm
Test Masses Range	0.100–21.6 kg	0.100–21.6 kg
Test Masses Motorized Lifter
Automatic Compacting and Purging
Motorized Melt Cutter
Test Masses Manual Selector		Optional
Die Plug Automatic Opening	Optional	Optional
Temperature Accuracy	<0.3°C	<0.3°C
Barrel Type	Standard: Nitrided steel with superior wear resistance Optional: Special stainless steel for corrosive materials	Standard: Nitrided steel with superior wear resistance Optional: Special stainless steel for corrosive materials
Temperature Resolution	<0.05°C	<0.05°C
User Interface	7" capacitive touch display	7" capacitive touch display
Other Facilities Required to Operate Basic Machine and Options	Electrical supply only	Electrical supply only
Additional Safety Shields		Optional
Bluehill Melt Software	Optional	Optional
Export Interfaces	USB, LAN for Bluehill Melt Software	USB, LAN for Bluehill Melt Software
Basic Machine Dimensions (w × d × h)	510 × 370 × 600 mm	510 × 370 × 850 mm
Machine Dimensions with Options (w × d × h)	510 × 370 × 700 mm	775 × 440 × 1,200 mm
Basic Machine Mass	60 kg	70 kg
Power Supply	660 W	780 W
Electrical Supply	230 or 115 V, UL/CSA ready 50/60 Hz	230 or 115 V, UL/CSA ready 50/60 Hz

Melt Flow Index Tester Maintenance: Top Tips to Optimize your Test Repeatability and Accuracy

Melt Flow Index Tester Maintenance | Instron

A melt flow index tester requires regular maintenance to deliver repeatable and accurate results over time. Here we look at four maintenance top tips to maximize an Instron melt flow tester’s uptime and efficiency.

Learn More