Biuged BGD 309 Digital Cupping Tester

The Biuged BGD 309 Digital Cupping Tester evaluates how well a coating resists cracking or detaching from its metal substrate when subjected to gradual, controlled deformation. It is widely used in paint R&D, industrial coating QC, and laboratory performance testing. The instrument combines a digital depth‑measurement system with a manual cupping mechanism to deliver precise, repeatable, standards‑compliant results. The tester determines the deformation depth at which a coated metal panel begins to crack or lose adhesion. A 20 mm hemispherical indenter presses the sample into a 27 mm die, with deformation applied smoothly via a hand‑twist drive wheel. The exact failure depth is shown on a digital display, and an illuminated 10× magnifier allows clear observation of cracking or detachment.

Key Features

Standards‑Compliant Construction

Conforms to major international cupping‑test standards:

• ISO 1520

• BS 3900 Part 4

• DIN 53166

• DIN 53233

Automatic Coordinate Positioning

The system memorizes the home position after zeroing and automatically tracks punch movement, eliminating errors caused by mechanical return or operator shake.

High‑Precision Position Sensor

A sensitive digital sensor provides 0.01 mm resolution, enabling fine‑resolution deformation measurement and highly repeatable results. Maximum depress force reaches 2,500 N, suitable for a wide range of substrates.

User‑Friendly Operation

A smooth hand‑twist mechanism ensures controlled deformation with minimal effort. The included 10× illuminated magnifier makes it easy to inspect the failure point.

Technical Specifications

• Punch diameter: 20 mm

• Maximum dent depth: 12 mm

• Maximum depress power: 2,500 N

• Resolution: 0.01 mm

• Digital counter: 0.01 mm increments

• Test panel size: 150 × 70 mm, thickness 0.03–1.25 mm

• Panel material: polished steel

• Weight: 28 kg

• Overall size: 290 × 240 × 370 mm (L×W×H)

Ideal Applications

• Paint and coating R&D

• Industrial coating quality control

• Metal packaging and appliance coatings

• Adhesion and flexibility testing

• Comparative evaluation of coating formulations

Why Choose the Biuged BGD 309?

The BGD 309 stands out as a high‑accuracy, digitally enhanced cupping tester that delivers repeatable, standards‑aligned results. Its automatic coordinate positioning, precision sensor, and illuminated inspection system make it significantly more reliable than traditional manual cupping testers. With its robust construction and fine‑resolution measurement capability, the BGD 309 is ideal for laboratories and manufacturers who require dependable, quantifiable coating‑flexibility data.