600KN computer display hydraulic universal testing machine(four columns two screws type)

1. Brief introduction

l  Suitable for tension, compress, shear, peeling, tear, test

l  Attractive appearance, easy operating, stable and reliable

l  Dual test space, upper space for tension test, bottom space for compress test

l  Crossbeam speed can reach up to 1000mm/min, suitable for most test speed

l  Low noise during test

l  Suitable for industries of metal manufacturing, non-metal manufacturing, industrial and mining enterprises, technical supervision, commodity inspection and arbitration and other departments

2.relative test method

GB/T 2611-2007 general requirement for testing machines

GB/T 3159-2008 hydraulic universal testing machines

GB/T 16826-2008 electro-hydraulic servo universal testing machine

JJG 1063-2010 electro-hydraulic servo universal testing machines

GB/T 16825.1-2008  verification of static uniaxial testing machines---part 1: tension/ compression testing machines---verification and calibration of the force measuring system

ISO 7500-1:2004 metallic materials-verification of static uniaxial testing machine-Part 1:tension/compression testing machines-verification and calibration of the force-measuring system

JJG 139-1999  tension, compression and universal testing machines

JB/T 6146-2007  specification for the extensometers

GB/T 228.1-2010 metallic materials---tensile testing---part 1: method of test at room temperature

ISO 6892-1:2016 metallic materials-tensile testing-part 1:method of test at room temperature

GB/T 7314-2017 metallic materials--- compression test method at room temperature

GB/T 232-2010 metallic materials---bend test

ISO 7438:2016 metallic materials-bend test

3. Specifications

china 600kn 60 ton ASTM F2255 medical material tensile etst ISO 604 compression testing for plastics ASTM D695 compression test for rigid materials hydraulic universal tension tester testing equipment machine price factory supplier manufacturer exporter

ASTM D3039 tensile testing of composites, ISO 34 rubber tear resistance testing, ASTM D3574 foam compression test, EN 14651 fiber-reinforced concrete testing, ISO 148 impact testing with UTM compatibility, ASTM E646 tension testing of thin metallic strips

How to Select the Right Tensile, Compression, Bending, Shear, Peel, and Tear Testing Machine: Calculation Formulas with Examples

Selecting the appropriate testing machine for tensile, compression, bending, shear, peel, and tear tests requires careful consideration of multiple factors, including the force range, specimen dimensions, test standards, and machine capabilities. Below are the key calculation formulas to help determine the necessary machine specifications, along with examples for better understanding.

1. Tensile Testing Machine Selection

Tensile testing machines measure the maximum tensile strength and elongation of materials.

Key Formula:

F_max=σ_max × A

Where:

F_max = Maximum required force (N)

σ_max = Ultimate tensile strength of the material (MPa)

A = Cross-sectional area of the specimen (mm²)

Example: For a steel specimen with σ_max =400MPa and cross-sectional area A =100mm²:

F_max=400 × 100=40,000N (40kN)

A 50 kN tensile testing machine would be suitable.

2. Compression Testing Machine Selection

Compression tests determine a material's resistance to compressive forces.

Key Formula:

F_max=σ_c × A

Where:

F_max = Maximum required force (N)

σ_c = Compressive strength of the material (MPa)

A = Cross-sectional area of the specimen (mm²)

Example: For a concrete cube with σ_c =30MPa and A =150²=22,500mm²:

F_max=30 × 22,500=675,000N (675kN)

A 1000 kN compression testing machine would be ideal.

3. Bending Testing Machine Selection

Bending tests evaluate the flexural strength of materials.

Key Formula for Three-Point Bending:

Where:

σ_f = Flexural stress (MPa)

F= Applied force (N)

L= Span length (mm)

b= Width of the specimen (mm)

h= Thickness of the specimen (mm)

Example: For a wooden beam with L=500mm, b=50mm, h=25mm, and requiring a stress of 10 MPa:

A 5 kN bending tester would be suitable.

4. Shear Testing Machine Selection

Shear tests determine the shear strength of materials.

Key Formula:

F_max=τ × A

Where:

F_max = Maximum shear force (N)

τ= Shear strength of the material (MPa)

A = Shear area (mm²)

Example: For an aluminum sheet with τ=90 MPa and A=200mm²:

F_max=90×200=18,000N(18kN)

A 20 kN shear testing machine is recommended.

5. Peel Testing Machine Selection

Peel tests measure the adhesion strength between bonded materials.

Key Formula:

Where:

P= Peel strength (N/mm)

F= Measured force (N)

W= Width of the specimen (mm)

Example: For a tape with F=50N and W=25mm:

A peel testing machine with at least 5 N force capacity is required.

6. Tear Testing Machine Selection

Tear tests determine the resistance of a material to tearing forces.

Key Formula:

Where:

F_tear= Tear strength (N/mm)

F= Measured force (N)

t= Thickness of the specimen (mm)

Example: For a rubber sheet with F=100N and t=2mm:

A tear testing machine with 100 N capacity is needed.

When selecting a testing machine, ensure that the maximum force capacity of the machine is at least 1.2 to 1.5 times the calculated force to account for safety margins and unexpected variations. Additionally, consider compliance with relevant test standards (ASTM, ISO, GB, EN, JIS) and machine features such as speed control, data acquisition, and test automation.

By using the above formulas and examples, engineers and manufacturers can accurately determine the appropriate testing machine specifications for their specific material and application requirements.