S M Engineers

Digital torsion testing machines are specialized equipment used to measure the torsional properties of materials. Torsion testing is essential for understanding how materials respond to twisting forces, which is critical in engineering applications where components may experience torsional stress, such as shafts, springs, and structural elements.

Here's an overview of how digital torsion testing machines typically operate:

1. Specimen Preparation: The material sample, often cylindrical or prismatic in shape, is prepared according to specific standards or requirements. The ends of the sample are often machined flat and parallel to ensure accurate testing.

2. Mounting: The sample is securely clamped into the testing machine, with one end held stationary while the other end is twisted.

3. Torque Application: A motor or hydraulic system applies a twisting force (torque) to the free end of the sample while the other end remains fixed. The torque can be applied at a constant rate or in increments, depending on the testing requirements.

4. Measurement: As the torque is applied, the machine measures the resulting angular deflection (rotation) of the sample. This measurement is typically done using precision sensors or encoders integrated into the testing machine.

5. Data Acquisition: The torsional data, including torque applied and angular deflection, are recorded digitally in real-time. Advanced digital torsion testing machines may also capture additional parameters such as strain, stress, and modulus of elasticity.

6. Analysis: Once testing is complete, the data can be analyzed to determine various mechanical properties of the material, including shear modulus, shear strength, and torsional rigidity.

Digital torsion testing machines offer several advantages over traditional analog machines, including higher accuracy, improved repeatability, and ease of data collection and analysis. They often feature user-friendly interfaces with touchscreen displays and software for controlling test parameters, viewing real-time data, and generating test reports.

Computerized Brinell Hardness Tester, Model : OPAB-3000-IPC-N is designed for Brinell hardness measurement on steels and other ferrous materials and also on non- ferrous materials like Brass, Bronze, Aluminium, etc. The material can be cast, forged or rolled and the shape can be flat, round or irregular shapes.

Features :

1. The actual load application system is of dead weight type combined with mechanical lever system. The supporting hydraulic system is for initial lifting of load before each test and dampening the load application system for smooth application of load.

2. A separate hydraulic power pack, positioned in the bottom part of the machine adds to the machine stability.

3. Our unique design of a floating fulcrum lever system ensures high accuracy and dependability.

4. An automatic indenter index system is provided which tilts the indenter after the impression and the magnified image is visible on the IPC for measurement with a 0.01mm least count.

5. Thus this machine saves a lot of cycle time, improves accuracy of measurement & gives fast & accurate results with less operator fatigue.

6. This model is mainly useful for production testing in Auto shops, Foundries, Forging Shops and Heat treatment units, etc.

 

7. The machine accuracies confirm to IS: 2281-2005 & BS : 240.

Portable Rockwell Hardness Testers are compact and handheld devices used to measure the hardness of materials. Hardness testing is crucial in various industries to ensure the quality and durability of materials, especially metals. The Rockwell hardness testing method is widely employed due to its simplicity and accuracy.

Here's how a portable Rockwell hardness tester typically works:

1. Preparation: The surface of the material to be tested is usually cleaned and smoothed to ensure accurate results.

2. Indentation: The tester applies a minor load to the material's surface using a spherical or conical indenter. This initial load is called the "preload."

3. Major Load Application: After the preload, a larger load is applied, causing the indenter to penetrate further into the material.

4. Load Removal: The major load is then removed, leaving the minor load still applied.

5. Measurement: The depth of the indentation is measured, typically using a dial gauge or electronic sensor integrated into the tester. The Rockwell hardness value is determined based on the depth of penetration.

Portable Rockwell hardness testers offer the advantage of being small, lightweight, and easy to use in various locations, including manufacturing plants, field inspections, and on-site construction projects. They are particularly useful for assessing the hardness of large or immobile components where bringing the material to a traditional hardness testing machine is impractical.

Computerized Brinell Hardness Tester, Model : OPAB-3000-IPC-N is designed for Brinell hardness measurement on steels and other ferrous materials and also on non- ferrous materials like Brass, Bronze, Aluminium, etc. The material can be cast, forged or rolled and the shape can be flat, round or irregular shapes.

Features :

1. The actual load application system is of dead weight type combined with mechanical lever system. The supporting hydraulic system is for initial lifting of load before each test and dampening the load application system for smooth application of load.

2. A separate hydraulic power pack, positioned in the bottom part of the machine adds to the machine stability.

3. Our unique design of a floating fulcrum lever system ensures high accuracy and dependability.

4. An automatic indenter index system is provided which tilts the indenter after the impression and the magnified image is visible on the IPC for measurement with a 0.01mm least count.

5. Thus this machine saves a lot of cycle time, improves accuracy of measurement & gives fast & accurate results with less operator fatigue.

6. This model is mainly useful for production testing in Auto shops, Foundries, Forging Shops and Heat treatment units, etc.

 

7. The machine accuracies confirm to IS: 2281-2005 & BS : 240.

Portable Rockwell Hardness Testers are instruments used to measure the hardness of materials in a non-destructive manner. They are designed for on-site or field testing where it may not be practical to bring the sample to a laboratory setting. The Rockwell hardness test method involves applying a known minor load followed by a major load to an indenter (typically a diamond cone or hardened steel ball) in contact with the material surface. The depth of penetration of the indenter under the major load is measured, and this depth correlates with the material's hardness.

Portable Rockwell testers typically consist of a handheld device with a small footprint, making them convenient for use in various locations. They often include a digital display for reading hardness values directly, eliminating the need for manual calculations. Some models may also feature built-in data logging capabilities, allowing for easy record-keeping and analysis of test results.

These testers are commonly used in industries such as manufacturing, construction, and maintenance to assess the hardness of metal components, including welds, forgings, and heat-treated parts, without requiring them to be transported to a central laboratory for testing. They offer the advantage of quick and convenient hardness measurements, making them valuable tools for quality control and material evaluation in various applications.

A Vickers cum Brinell hardness testing machine is a specialized instrument used in laboratories and manufacturing facilities to measure the hardness of materials using both Vickers and Brinell hardness testing methods. This type of machine is capable of testing materials with hardness values ranging from 120 to 150 kg, which indicates the load applied during the testing process.

Here are some key features and functionalities of such a machine:

1. Vickers Hardness Testing: The Vickers hardness testing method involves pressing a diamond indenter into the surface of the material under a specified load. The diagonal lengths of the resulting indentation are measured and used to calculate the Vickers hardness value.

2. Brinell Hardness Testing: The Brinell hardness testing method involves pressing a hardened steel ball indenter into the surface of the material under a specified load. The diameter of the resulting indentation is measured and used to calculate the Brinell hardness value.

3. Digital Operation: The machine is equipped with digital controls and displays for precise and accurate measurements. Digital operation enhances the efficiency and reliability of the testing process.

4. Load Range: The machine is capable of applying loads within the range of 120 to 150 kg, which covers a wide range of materials with varying hardness levels.

5. Software Integration: Some advanced models may feature software integration for data management, analysis, and reporting. This allows users to store test results, generate reports, and perform statistical analysis for quality control purposes.

6. Sample Handling: The machine is designed to accommodate various sample sizes and shapes, allowing for flexibility in testing different types of materials.

7. Safety Features: Safety features such as interlocks and guards are incorporated to ensure operator safety during the testing process.

8. Calibration and Compliance: The machine is calibrated regularly to maintain accuracy, and it may comply with international standards such as ASTM and ISO for hardness testing.

ASTM (American Society for Testing and Materials) and ISO (International Organization for Standardization) are two major organizations that develop and publish standards for various industries and testing procedures, including materials testing. Pendulum impact testing machines are commonly used in materials testing to assess the impact resistance or toughness of materials.

Both ASTM and ISO have standards that cover pendulum impact testing procedures:

1. ASTM Standards: ASTM has several standards related to pendulum impact testing, depending on the specific material and application being tested. Some commonly referenced ASTM standards for pendulum impact testing include:

   • ASTM E23: Standard Test Methods for Notched Bar Impact Testing of Metallic Materials: This standard specifies the procedure for conducting pendulum impact tests on metallic materials using various types of pendulum impact testing machines.

   • ASTM D256: Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics: This standard outlines the procedure for conducting Izod pendulum impact tests on plastics.

   • ASTM D6110: Standard Test Method for Determining the Charpy Impact Resistance of Notched Specimens of Plastics: This standard provides the procedure for conducting Charpy pendulum impact tests on plastics.

2. ISO Standards: ISO also has standards related to pendulum impact testing, which are often harmonized with ASTM standards to ensure international consistency. Some relevant ISO standards include:

   • ISO 148-1: Metallic materials — Charpy pendulum impact test — Part 1: Test method: This standard specifies the Charpy pendulum impact test method for metallic materials.

   • ISO 179-1: Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact test: This standard outlines the procedure for conducting Charpy pendulum impact tests on plastics.

   • ISO 180: Plastics — Determination of Izod impact strength: This standard provides the procedure for conducting Izod pendulum impact tests on plastics.

We are offering Rockwell Cum Brinell Hardness Testers to our clients. 

Other Details:

• This is a combined Rockwell & Brinell hardness testing machine used to measure hardness of metals & alloys of all kinds, hard or soft, whether round, flat or irregular in shapes
• Brinell hardness is also checked on non-ferrous materials like Cast iron, Aluminum, etc
• Automatic weight selection with automatic zero setting dial gauge
• Brinell test for Model : MRB major load is 187.5 & for Model : MRB-250 are  187.5, 250 kgf
• Brinell hardness scale such as HB is obtained by using different types of indentors ( Diamond / Ball )
•  Motorized versions are also available

We are offering Analog Rockwell, Rockwell cum Superficial, Rockwell cum Brinell Hardness Testers to our clients.

A  Vickers cum Brinell hardness testing machine is a specialized instrument used in laboratories and manufacturing facilities to measure the hardness of materials using both Vickers and Brinell hardness testing methods. This type of machine is capable of testing materials with hardness values ranging from 120 to 150 kg, which indicates the load applied during the testing process.

Here are some key features and functionalities of such a machine:

1. Vickers Hardness Testing: The Vickers hardness testing method involves pressing a diamond indenter into the surface of the material under a specified load. The diagonal lengths of the resulting indentation are measured and used to calculate the Vickers hardness value.

2. Brinell Hardness Testing: The Brinell hardness testing method involves pressing a hardened steel ball indenter into the surface of the material under a specified load. The diameter of the resulting indentation is measured and used to calculate the Brinell hardness value.

3. Digital Operation: The machine is equipped with digital controls and displays for precise and accurate measurements. Digital operation enhances the efficiency and reliability of the testing process.

4. Load Range: The machine is capable of applying loads within the range of 120 to 150 kg, which covers a wide range of materials with varying hardness levels.

5. Software Integration: Some advanced models may feature software integration for data management, analysis, and reporting. This allows users to store test results, generate reports, and perform statistical analysis for quality control purposes.

6. Sample Handling: The machine is designed to accommodate various sample sizes and shapes, allowing for flexibility in testing different types of materials.

7. Safety Features: Safety features such as interlocks and guards are incorporated to ensure operator safety during the testing process.

8. Calibration and Compliance: The machine is calibrated regularly to maintain accuracy, and it may comply with international standards such as ASTM and ISO for hardness testing.