Axial Rod

The mandrel is a tool used for testing the flexibility of coatings. Its principle involves bending coating samples over steel rods of different diameters and observing any cracking in the coating to assess its resistance to deformation. Its purpose is to evaluate the adhesion and ductility of the coating when the substrate deforms. It is applied in quality control in the paint and ink industries.
Selection
Select shaft rods that match the diameter series specified by the test standard; consider the thickness range of the material to be tested; prioritize quenched steel material to ensure wear resistance; verify the surface finish of the shaft rods to avoid scratching the coating; confirm the compatibility of the shaft rods with the bending tester.

Terms

Instruments

The stainless steel material ensures durability, the blade width is 70mm, the height is 1.8mm, the Rod diaMeter is 8mm, and the axial flow and local shear force are generated during medium and high speed operation, which is suitable for mixing various media.

$ 102.00

The stainless steel blade is 70mm wide and 1.8mm high, the Rod diaMeter is 6mm and the length is 350mm. Medium and high speed stirring pRoduces axial flow and local shear force, which is suitable for a variety of mixing needs.

$ 102.00

The blade width is 70mm, the blade height is 1.8mm, the Rod diaMeter is 6mm, and the Rod length is 300mm; stainless steel material, used at medium and high speed, pRoduces axial flow and local shear force, suitable for a variety of mixed needs.

$ 102.00

The stainless steel material ensures durability, and the paddle width of 70mm and Rod length of 350mm are designed for medium and high speed mixing, generating axial flow and local shear force, suitable for a variety of mixing needs.

$ 102.00

The slow speed Impeller operates in the laminar flow region, the liquid forms an axial up and down circulation along the helical surface, the diaMeter of the pulp sheet is 80mm, and the Rod length is 350mm, which is suitable for mixing medium and high viscosity liquids.

$ 151.00

The stainless steel structure with a blade width of 70mm and a Rod length of 300mm can operate at medium and high speed, generating axial flow from top to bottom and local shear force, which is suitable for mixing various viscous liquids.

$ 101.00

The blade width is 70mm and the height is 1.5mm, the Rod diaMeter is 6mm and the length is 350mm, the stainless steel material is resistant to corrosion, and the medium and high speed stirring pRoduces axial flow and local shear force.

$ 101.00

The stainless steel material ensures durability, the paddle width is 70mm, and the Rod length is 300mm. The design optimizes the mixing efficiency, and the medium and high speed operation pRoduces axial flow and local shear force, which is suitable for mixing various viscous liquids.

$ 98.00

The stainless steel material ensures durability, the blade width is 70mm, the height is 1.8mm, the Rod diaMeter is 8mm, and the length is 350mm. The medium and high speed operation pRoduces axial flow and local shear force, which is suitable for a variety of mixed needs.

$ 104.00

Made of stainless steel, with a diaMeter of 90mm and a Rod length of 350mm, the slow mixing design operates in the laminar flow area, and the liquid forms an axial up and down circulation along the spiral surface, which is suitable for mixing and heat transfer of medium and high viscosity liquids.

$ 154.00

The slow-speed design operates in the laminar flow region, and the liquid forms an axial circulation along the helical surface. The pulp sheet has a diaMeter of 50mm and a Rod length of 350mm. It is suitable for mixing medium and high viscosity liquids.

$ 159.00

Adapted diaMeter 16mm formed Metering Rod, the total length of 2000mm, through the special structure to correct the straightness of the Rod body, to ensure stable rotation and full contact with the substrate, improve the thickness control accuracy of Spreader.

$ 590.00

Wet film thickness 22.9 microns, diaMeter 9.52 mm, the forming Rod uses an extrusion process to process continuous grooves, with no wire breakage and easy cleaning; the wire-wound Rod is based on the traditional principle, and there are differences in coating amount.

$ 167.00

The slow mixing design operates in the laminar flow area, the liquid forms an axial circulation along the helical surface, the diaMeter of the pulp sheet is 60mm, and the Rod length is 350mm, which is suitable for the treatment of medium and high viscosity media.

$ 141.00

The slow speed Impeller operates in the laminar flow region, the liquid forms an axial up and down circulation along the helical surface, and the slurry diaMeter is 50mm, which is suitable for the mixing and heat transfer process of medium and high viscosity liquids.

$ 136.00

Articles

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.