High Precision Pendulum Impact Testing

The machine uses a pendulum hammer mechanism to perform notched bar impact bending tests according to standard material testing methods. It accurately determines the energy absorbed by a specimen during fracture.

Ideal for Engineering Education

Specially developed for:

• Mechanical Engineering Laboratories
• Civil Engineering Material Labs
• Metallurgy & Material Science Departments
• Polytechnic Institutes
• Technical Training Centers
• Industrial Research Facilities

Study of Fracture Behaviour

Students and researchers can observe:

• Brittle fracture
• Ductile fracture
• Crack propagation
• Energy absorption characteristics
• Material toughness behavior

Multiple Specimen Compatibility

The equipment supports testing of:

• Metallic specimens
• Non-metallic specimens
• Different notch profiles
• Heat-treated samples
• Temperature-conditioned specimens

Enhanced User Safety

The machine is equipped with a single-hand trigger mechanism that improves operator safety during testing operations.

Optional PC Data Acquisition

For advanced laboratory analysis and data recording, the machine offers an optional PC data acquisition system.

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Educational Advantages

The Impact Testing Machine SM-1409 is designed specifically for educational demonstrations and practical learning. Its open and visible structure allows students to clearly observe:

• Pendulum movement
• Specimen fracture process
• Energy transfer during impact
• Fracture surface characteristics

The straightforward mechanical arrangement helps learners easily understand the principles behind impact testing and material failure analysis.

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Major Experiments & Applications

The machine allows users to perform a wide range of laboratory experiments, including:

• Determination of notched bar impact work
• Determination of notched bar impact strength
• Evaluation of fracture surface characteristics
• Study of notched bar impact work-temperature curve
• Analysis of the influence of notch shape on impact work
• Study of the effect of heat treatment on impact resistance
• Investigation of specimen temperature influence on fracture behaviour
• Quality testing of metallic materials
• Comparative study of various engineering materials

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Technical Specifications

General Specifications

• Model: SM-1409
• Machine Type: Pendulum Impact Testing Machine
• Application: Notched Bar Impact Bending Test
• Work Capacity: 25 Nm
• Hammer Impact Speed: 3.8 m/s
• Specimen Bearing Separation: 40 mm

Specimen Details

• Standard Specimen Cross-Section: 10 × 10 mm
• Cross-Section at Notch: 10 × 8 mm and 10 × 5 mm

Supported Notch Types

• U Notch
• V Notch
• Keyhole Notch

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Specimen Materials Included

The system supports testing of various engineering materials such as:

• Free-cutting steel (9SMn28K)
• Tempering steel (C45)
• Construction steel (St37)
• Brass (CuZn40Pb2)

These specimens help students compare the fracture behavior and impact strength of different material categories.

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Standard Accessories

The machine comes supplied with complete standard testing specimens including:

V-Shaped Specimens

• Set of 5 Steel Specimens
• Set of 5 Brass Specimens
• Set of 5 Bakelite Specimens

U-Shaped Specimens

• Set of 5 Steel Specimens
• Set of 5 Brass Specimens
• Set of 5 Bakelite Specimens

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Key Benefits

• Strong and durable laboratory construction
• Accurate and repeatable test results
• Easy operation and maintenance
• Excellent educational demonstration capability
• Safe testing mechanism
• Compact table-top design
• Suitable for both teaching and research applications
• Supports comprehensive material testing curriculum