Multilayer Coating Thickness Gauge

AMT557 Ultrasonic Coating Thickness Gauge

Keywords: multilayer coating thickness gauge, ultrasonic thickness gauge, coating thickness meter, paint thickness gauge, AMT557 thickness gauge

Accurately measure single- and multi-layer coating thickness on metal and non-metal substrates from 13 μm to 14800 μm.

The AMT557 is a multilayer ultrasonic coating thickness gauge based on the pulse-echo measurement principle. It is professionally used to measure the thickness of coatings on non-metallic substrates such as plastic, wood and glass, as well as on metal substrates such as steel, and can measure up to 3 individual coating layers plus the substrate itself.

Compliant with GB/T 37361-2019 and JJF1126-2004, the instrument features an 800×480 IPS color display, 1 μm resolution, ≤ ±(3%H + 3 μm) accuracy and a rechargeable 3.7V@4000mAh battery with USB Type-C charging for reliable field operation.

Key Features

1. Multilayer Measurement — Measures 1–3 coating layers, with user-set sound velocity and estimated thickness for each layer to improve accuracy.

2. Wide Measuring Range — 13–5500 μm for epoxy coating and 300–14800 μm for 45# steel, with 1 μm resolution.

3. High Accuracy — Accuracy ≤ ±(3%H + 3 μm); sound velocity range 1000–9999 m/s.

4. IPS Color Display — 800×480 dot-matrix IPS screen, switchable units μm/mil, Simplified Chinese / English interface.

5. Portable & Rechargeable — 475 g, 141.7×91.1×22.6 mm body, 3.7V@4000mAh lithium battery, USB Type-C charging.

6. Easy Operation — Coupling-agent measurement with buzzer prompt on completion; menu for zero calibration, continuous measurement, unit and auto-off.

How to Use

1. Apply Couplant — Spread the coupling agent evenly on the surface to be measured.

2. Position Probe — Press the probe firmly at the center of the area and keep it steady.

3. Read Result — When the buzzer sounds, the measurement is complete and the thickness is displayed.

4. Set Parameters — Set layers (1–3), measuring range, sound velocity and estimated thickness via the menu for higher accuracy.

Technical Specifications

Applications

1. Coating thickness inspection on non-metallic parts such as plastic, wood and glass.

2. Paint and coating measurement on metal substrates such as steel.

3. Multi-layer coating analysis in automotive, aerospace and manufacturing quality control.

4. Thickness verification of incoming materials and finished products.

Spare Parts

• Plastic Standard Test Piece

• Probe (Φ26×42.1 mm)

• Charging Cable (USB Type-C)

• Calibration Report