Shaft Rod Bending Tester

The mandrel bending tester evaluates the flexibility and crack resistance of materials by bending specimens around mandrels of specified diameters. It is used to assess the adhesion of coatings and ink layers on metal or plastic substrates, simulating bending deformation during processing or in-use conditions.
Selection
When selecting, consider matching the thickness range of the specimen with the diameter specifications of the shaft rod, align the material type with the bending angle requirements, ensure the testing standards comply with industry norms, maintain equipment rigidity to guarantee bending accuracy, and prioritize operational convenience to meet daily testing frequency needs.

Terms

Standards

Instruments

Using 12 stainless steel shaft Rods with a diaMeter of 2-32mm, the 50mm wide test plate can be tested for 180 ° bending. The coating cracking situation is detected by decreasing the diaMeter of the shaft Rod, and the operation is simple and fast.

$ 506.00

Equipped with 8 kinds of diaMeter shaft Rods from 2 to 12mm, the 180 degree bending test can be completed in 1-3 seconds, and the anti-cracking performance of the paint film can be evaluated with the smallest shaft Rod diaMeter, which is easy to operate.

$ 231.00

Tapered shaft size Φ 3.1~ 38mm, shaft Rod size 2-32mm, anodic oxidation aluminum and stainless steel material, ergonomic design clamping device, bending arm large knob for easy operation, suitable for measuring plate thickness ≤ 0.8mm.

$ 4079.00

Equipped with 13 shaft diaMeters from 2 to 32mm, it can accurately determine the cracking performance of coatings; support 1.0mm thickness sample testing, manual operation to ensure smooth and controllable bending process, meeting standard laboratory Environmental requirements.

$ 251.00

Equipped with 8 kinds of diaMeter shaft Rods of 2-12mm, made of wear-resistant stainless steel, easy to operate without assembly, each shaft Rod is engraved with diaMeter numbers for easy identification and use.

$ 228.00

The bending diaMeter of putty film cracking peeling is tested by bending test plate, and the shaft Rod size is 50mm and 100mm. It is suitable for 0.2-0 mm thick tinplate substrate, and the operation is simple and reliable.

$ 228.00

Equipped with 2 to 12mm eight diaMeter stainless steel cylindrical mandrel, in the form of hinged bending, in line with GB6742 standard, suitable for Coating bending performance testing.

$ 235.00

The tapered shaft size range is 3.2~ 38mm, and the shaft length is 203mm, which can test the cracking and disbonding performance of the paint film under bending conditions, in line with international standards.

$ 238.00

Equipped with a total of 12 shaft Rods of 2-32mm, it can test the 1.0mm thickness sample, and test the anti-cracking performance of the coating through 180 ° bending, which is easy to operate and accurate.

$ 344.00

The cone shaft length is 203mm and the large end diaMeter is 38mm, which can test the cone bending resistance of a single layer or the entire coating system separately. Operating temperature is 23 +/- 2 ℃ and relative humidity is 50 +/- 5%.

$ 286.00

The cone shaft is used to test the anti-cracking performance of coatings with different curvatures. The size of the cone shaft is Φ 3.1~ 38mm, the volume is small and the weight is light, which is convenient for laboratory and field use.

$ 670.00

Equipped with 13 kinds of diaMeter shaft Rods, covering the range of 2-32mm, can detect 1.0mm thickness samples, evaluate the film anti-cracking performance through different bending radii, easy and accurate operation.

$ 254.00

It can test the cracking of the paint film after bending 180 degrees in 1-3 seconds, and the diaMeter range of the shaft Rod is 2-32mm. It is suitable for the test plate with a thickness of not more than 1.0mm. Quick evaluation of flexibility.

$ 280.00

Equipped with 12 high-Hardness stainless steel shaft Rods, with a diaMeter range of 2-32mm, it supports two test methods to determine the cracking resistance of coatings, and the clamping device is designed for easy plate fixing and shaft Rod replacement.

$ 517.00

A bending angle is less than 45 degrees, can test 0.5~ 1.0mm Film thickness sample, flattening mechanism stroke is not less than 10mm, using crank lifting mechanism to achieve T-shaped bending test.

$ 912.00

Articles

Cone Mandrel Bend Tester evaluates the flexibility of coatings under small-diameter bending.
The paint film conical bending tester simulates a gradually varying radius of curvature using a conical shaft to test the flexibility of coatings under small-diameter bending.
Cylindrical Mandrel Bending Tester for Detecting Flexibility of Coatings
This article introduces how the cylindrical shaft bending tester detects the flexibility of paints. Flexibility refers to the ability of the paint film to resist cracking when the substrate is bent.
Testing principle of the mandrel bending method for paint film flexibility tester
The shaft-rod bending method is a common technique for testing the flexibility of paint films. It involves bending a test panel coated with the paint film over shafts of different diameters to simulate the deformation of the coating under stress.
Paint Flexibility Tester for Measuring Bending Adaptability
The coating flexibility tester is a device used to assess whether a coating cracks or peels when bent. During testing, the coated sample is bent around mandrels of different diameters, and the surface condition is examined. The flexibility is evaluated based on the smallest mandrel diameter at which no cracking occurs.
Cone Bend Test Evaluates the Ultimate Deformation of High-Elasticity Coatings
This article introduces the use of a conical mandrel bend test to evaluate the ultimate deformation capacity of highly elastic coatings. The test involves bending a coated sample around a conical mandrel of specific diameters and observing the minimum mandrel diameter at which the coating cracks or peels off, thereby assessing the material's ability to withstand deformation.
Complete Guide to Methods for Determining the Flexibility of Paint Films
This article systematically outlines the core methods for determining the flexibility of paint films, including the mandrel bending test based on GB/T 1731, the cylindrical mandrel bending method according to GB/T 6742, and the conical mandrel bending method specified in GB/T 11185, providing a detailed explanation of the technical principles of each method.