Biuged BGD 509/S Automatic Pendulum Hardness Tester

The Biuged BGD 509/S Automatic Pendulum Hardness Tester is the latest generation pendulum‑type hardness instrument designed to measure coating hardness using the König and Persoz oscillation methods. It automates every stage of the test—pendulum release, panel clamping, timing, and stopping—ensuring highly repeatable, operator‑independent results. It complies with all major international standards. A precision pendulum is placed on the coated surface and set into oscillation. The instrument measures the time or number of oscillations required for the amplitude to decrease between two specified angles:

• Persoz: 12° → 4°

• König: 6° → 3°

Harder coatings allow longer oscillation; softer coatings dampen more quickly. The BGD 509/S automates the entire process, using an electromagnet for precise release and sensors for accurate timing.

Key Features

Standards‑Compliant Dual‑Method Operation

Supports both König and Persoz procedures and complies with:

• ISO 1522

• ASTM D4366

• BS 3900‑E5

• DIN 53157

• NBN T22‑105

• NF T30‑016

Fully Automatic Test Control

• One‑button start

• Automatic pendulum release via electromagnet

• Automatic panel clamping

• Automatic timing/counting

• Automatic stop when amplitude reaches the required threshold (3° König / 4° Persoz)

Large Capacitive Touch Screen

Displays test parameters, real‑time timing/counting, and environmental conditions (temperature & humidity).

Automatic Lifting Platform

Clamps the test panel in 3 seconds with at least 25 N of force, ensuring a stable, vibration‑free platform during oscillation.

High‑Precision Pendulums

Machined with high accuracy for excellent stability and reproducibility, comparable to imported instruments.

Protective Organic‑Glass Door

A full lift‑up cover reduces airflow interference and includes a unidirectional resistance design to prevent impact when closing.

Built‑In High‑Precision Inclinometer

Accuracy of 0.05°, displayed directly on the touch screen for quick leveling.

Technical Specifications

• Test methods: König / Persoz

• Automatic timing & counting

• Automatic stop at required amplitude thresholds

• High‑precision pendulum machining

• Automatic clamping force: ≥25 N

• Touch screen interface

• Suitable substrate thickness: approx. 0.1–5.5 mm (per distributor data)

• Includes calibration certificate

Ideal Applications

• Paint and coating hardness evaluation

• Industrial coating QC

• Automotive, appliance, and metal finishing

• R&D formulation comparison

• Comparative hardness testing across coating systems

Why Choose the Biuged BGD 509/S?

The BGD 509/S offers fully automated, highly repeatable pendulum hardness testing with both König and Persoz methods in one instrument. Its electromagnet release, automatic clamping, precision pendulums, and airflow‑shielding enclosure eliminate operator variability and environmental interference. The large touch screen, inclinometer, and automated workflow make it a modern, professional‑grade solution for laboratories and manufacturers requiring accurate, standards‑aligned hardness measurements.