The Marshall Mechanical Machine is designed for determining the stability and flow characteristics of Marshall asphalt specimens under controlled laboratory conditions. The applied load is measured using a precision 50 kN proving ring, ensuring reliable mechanical load measurement throughout the test.

The proving ring incorporates a maximum load indicator (stem brake) that retains the peak load value during testing and is supplied with an individual calibration certificate. To protect both the proving ring and the machine, an automatic overload protection system stops the test when the maximum proving ring capacity is reached.

The machine is supplied complete with a 50 kN proving ring, Marshall breaking head for 100 mm (4 inch) specimens, flow meter with dial gauge, and upper and lower limit switches for safe and controlled operation.

Key Features of the Marshall Mechanical Machine

• Designed for Marshall stability and flow testing
• Precision 50 kN proving ring
• Mechanical load measurement system
• Maximum load indicator (stem brake)
• Calibration certificate supplied with proving ring
• Adjustable loading rate
• Automatic overload protection
• Automatic stop at maximum proving ring capacity
• Upper and lower limit switches
• Marshall breaking head for 100 mm specimens
• Flow meter with dial gauge
• Reliable mechanical operation
• Suitable for asphalt testing laboratories

Standards

• EN 12697-34
• BS 598-107
• EN 13108
• ASTM D1559
• ASTM D6927

Equipment Supplied

The Marshall Mechanical Machine is supplied with:

• 50 kN proving ring
• Marshall breaking head for 100 mm (4 inch) specimens
• Flow meter
• Dial gauge
• Calibration certificate for the proving ring

Load Measurement System

The machine measures the applied load using a precision 50 kN proving ring designed for accurate mechanical load determination during Marshall testing.

A built-in maximum load indicator (stem brake) retains the peak load reached during the test, allowing accurate determination of Marshall stability values. Each proving ring is individually calibrated and supplied with its corresponding calibration certificate.

Safety and Overload Protection

To ensure safe operation, the Marshall Mechanical Machine incorporates an automatic overload protection system that stops the machine when the proving ring reaches its maximum load capacity.

Upper and lower limit switches automatically stop platen movement at both travel limits, protecting the testing components and improving operational safety.

Applications of the Marshall Mechanical Machine

The Marshall Mechanical Machine is suitable for:

• Marshall stability testing
• Marshall flow testing
• Asphalt testing laboratories
• Road and pavement engineering laboratories
• Construction materials laboratories
• Quality control laboratories
• Research and development laboratories
• University laboratories

Why Choose a Marshall Mechanical Machine?

The Marshall Mechanical Machine provides a dependable mechanical solution for determining Marshall stability and flow values of asphalt specimens.

Its precision proving ring ensures accurate load measurement, while the maximum load indicator allows reliable recording of peak load values. Automatic overload protection, limit switches, and complete testing accessories make the machine suitable for routine laboratory testing and quality control applications.

Frequently Asked Questions About the Marshall Mechanical Machine

What is a Marshall Mechanical Machine?

A Marshall Mechanical Machine is a laboratory testing machine used to determine the stability and flow characteristics of Marshall asphalt specimens through mechanical load measurement.

What is the proving ring capacity?

The machine is equipped with a 50 kN precision proving ring.

How is the maximum load measured?

The proving ring includes a maximum load indicator (stem brake) that retains the highest load value reached during the test.

Is the proving ring supplied with a calibration certificate?

Yes. Every proving ring is supplied with its own calibration certificate.

Does the machine include overload protection?

Yes. The machine automatically stops when the proving ring reaches its maximum load capacity, helping prevent overload damage.

What accessories are supplied with the machine?

The standard package includes:

• 50 kN proving ring
• Marshall breaking head for 100 mm specimens
• Flow meter
• Dial gauge
• Calibration certificate

Which standards does the Marshall Mechanical Machine comply with?

The Marshall Mechanical Machine complies with the following international standards:

• EN 12697-34
• BS 598-107
• EN 13108
• ASTM D1559
• ASTM D6927