Tubular Impact Tester

BGD series Impact Tester produced by our company is in accordance with the specification in National Standards determination of paint film resistance to impact and the practical requirement of mechanical construction.

The operation principle of the impact tester is by means of a weight that drops down from a specified height and impacts a painted panel under test to result in its rapid deformation, and the film resistance to impact is then attained from observing the film to see if it cracks or peels off.

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BGD series Impact Tester produced by our company is in accordance with the specification in National Standards determination of paint film resistance to impact and the practical requirement of mechanical construction.

The operation principle of the impact tester is by means of a weight that drops down from a specified height and impacts a painted panel under test to result in its rapid deformation, and the film resistance to impact is then attained from observing the film to see if it cracks or peels off.

Product Description

The BGD series Impact Tester produced by our company is in accordance with the specifications in the National Standards for determining paint film resistance to impact and meets the practical requirements of mechanical construction.

The operating principle of the impact tester involves a weight dropping from a specified height, impacting a painted panel under test, leading to rapid deformation. The film's resistance to impact is then determined by observing whether the film cracks or peels off.

 


Standards

  • BGD 302: GB/T 1732
  • BGD 304: GB/T 1732
  • BGD 305: ASTM D 2794 & ISO 6272.2
  • BGD 306: ISO 6272.1

Technical Specification

The impact test describes a method for evaluating the resistance of a dry film of paint, varnish, or a related product to cracking or peeling from a substrate when subjected to deformation caused by a falling weight. The coating under test is applied to suitable, thin, normally metal panels. After the coating has cured, a standard weight is dropped on each panel from a height that will cause deformation of the coating and the substrate. The test can be carried out with the coated side of the panel facing upwards, i.e., towards the falling weight, or downwards, i.e., away from the weight. By gradually increasing the height from which the weight drops, the point at which failure occurs can be determined. Films generally fail by cracking, which is made more visible by the use of a magnifier.

The test can be carried out:

  1. a) either as a 'pass-fail' test, meaning the test is carried out from one drop height and with a specified mass, to test compliance with a particular specification.
  2. b) or as a classification test, to determine, by gradually increasing the drop height and/or the mass, the minimum mass and/or drop height for which the coating cracks or peels from its substrate.

We offer many different types of impact testers according to different standards. These impact testers consist of a solid base with a guide tube support, various weights of falling hammers, and different diameter punches. Users can choose a different size and weight hammer to simulate paint used in different environment.

 


Main Technical Parameters

More Information

Ordering information 

Technical Parameter

BGD 302

BGD 304

BGD 305

BGD 306

Instrument scale length

0-50cm

0-100cm

0-100cm(40inch)

0-100cm(40inch)

Graduation

1cm

1cm

1cm

1cm

Mass of hammer

1Kg

1Kg

1000g(2 pcs)
300g(1 pc)

1000g(2 pcs)

2 lb.(2 pcs)

Piercer specification

ф8mm

ф8mm

Ф 12.7mm(1/2 inch)

Ф 15.9mm(5/8 inch)

Ф 20 mm

Ф 15.9mm(5/8 inch)

Notch diameter on the bolster block

ф15mm

ф15mm

Ф 16.3mm
ф 31.75mm

Ф 27mm
ф 16.3mm(41/64inch)

Impact depth of piercer

2mm

2mm

2.5mm

2.5mm

Standard

GB/T 1732

GB/T 1732

ASDM D 2794

ISO 6272.2

ISO 6272.1