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AMADA (THAILAND) CO., LTD.
PRODUCT
Production Goods
Weld Checker | Measurement and Quality Control System for Resistance Welding
Key Takeaways
• Measures, evaluates, and controls current, voltage, weld time, force, and displacement in one unit
• Compliant with ISO 17657 and supports traceable data recording
• Envelope function enables detailed time-axis waveform analysis
• Long-duration models support up to 10 seconds of continuous AC/DC measurement
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The Weld Checker visualizes, evaluates, and controls resistance welding quality on production lines. It helps prevent defective welds from escaping and supports stable welding quality.
🔷 Measurement Parameter Range
Measures key parameters affecting weld quality, including current, voltage, weld time, force, and workpiece displacement. Data is displayed numerically and as waveforms with date and time stamps, supporting detailed defect analysis and quality control.
🔷 All-in-One Functional Integration
A stationary unit integrating measurement, display, and pass/fail judgment. Compatible with single-phase AC, inverter DC/AC, transistor, and capacitor welding systems. Touch-panel operation allows simultaneous display of up to four waveforms or ten parameters.
🔷 Measurement Standards and Accuracy
In addition to conventional RMS calculations, the system supports calculation modes compliant with ISO 17657 for resistance welding current measurement, meeting international quality requirements.
🔷 Envelope Function and Advanced Analysis
Sets acceptable waveform ranges and compares them with actual waveforms during energization, enabling detailed time-based analysis. Supports comparison of two waveforms at up to three points.
🔷 Data Recording and External Communication
Supports data storage to internal memory or USB. Equipped with RS-232C, RS-485, and Ethernet for external system integration. Built-in printer allows direct printing of measured values and waveforms.
🔷 Judgment Functions and In-Process Control
Supports force and displacement sensors mounted on welding heads for real-time measurement during production. Equipped with three energization stop outputs for precise control. External sensor inputs (±10V, 4–20mA) are also supported.
🔷 Long-Duration Continuous Measurement
Supported models enable continuous current and voltage measurement for up to 10 seconds in both AC and DC applications.
📘 Summary
The Weld Checker is an integrated resistance welding quality control solution that combines measurement, judgment, and control to support quality management on production lines.
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❓ FAQ
Q1: What parameters can be measured?
A1: Current, voltage, weld time, force, and workpiece displacement.
Q2: Which standards are supported?
A2: ISO 17657 for resistance welding current measurement.
Q3: Can data be stored?
A3: Yes. Data can be stored internally or on USB and accessed via Ethernet.
📚 Glossary (Key Terms)
• Resistance welding: A welding method using heat generated by electrical resistance
• Envelope function: A function for setting and comparing allowable waveform ranges
• Traceability: The ability to record and track welding data
📖 Reference
Amada Micro Welding Machine & Welding Power Supply
Product Overview & Technical Description – AMADA (N/A)
(Internal Validation)
🔒 Trust
The technical information in this article is based on AMADA quality documentation and has been verified by Mr. Kazutaka Suehiro.
#WeldChecker #ResistanceWelding #QualityControl #IndustrialMeasurement #ISO17657 #Manufacturing #AMADA
📆 Updated: 2026-01-19
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Industrial machinery
Main 3 Products
Sheet Metal Fabrication Machines / Metal Cutting Machines / Micro Welding Systems
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Since our founding in 1946, the AMADA Group has continuously created and risen to challenges as a manufacturer of metalworking machinery and supported global manufacturing. With “Growing Together with ...
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