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AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
Specifications
Brand Name :
TESTECH
Model Number :
CDX-220 AC and DC
Certification :
CE; ISO
Place of Origin :
CHINA
MOQ :
1 PIECE
Supply Ability :
500pcs
Delivery Time :
within 5 days
Packaging Details :
In Carton
AC Lifting Force: :
≥45N (4.5kg) | DC Lifting Force: ≥177N (18kg)
Adjustable Pole Spacing: :
0-300mm (0-12")
Light Source: :
UV 365nm + White LED Dual Mode
Continuous Operation: :
6-8 Hours
Weight: :
2.5kg (5.5lbs)
Compliance: :
ASTM E1444 / E3024, ISO 9934-1, CE Certified
Description
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector
Professional portable non-destructive testing equipment for detecting surface and near-surface defects in ferromagnetic materials.
Working Principle & Technology
AC Magnetic Yoke
  • Excitation Mode: Industrial frequency alternating current (AC 220V/50Hz)
  • Core Effect: Skin effect concentrates magnetic field on workpiece surface (0-2mm depth)
  • Advantage: Alternating magnetic field produces slight vibration for clearer defect indications
  • Lifting Force: ≥45N (approximately 4.5kg)
  • Adjustable Pole Distance: 10-220mm
DC Magnetic Yoke
  • Excitation Mode: Direct current (full-wave/half-wave rectified DC or battery DC)
  • Core Feature: Deep penetration performance reaching 0-6mm inside workpiece
  • Lifting Force: ≥177N (approximately 18kg)
  • Adjustable Pole Distance: Customizable for various applications
AC/DC Dual-purpose Magnetic Yoke
  • One-button AC/DC mode switching capability
  • Combines high surface sensitivity with deep subsurface detection
  • Built-in demagnetization function in AC mode
  • Ideal for complex inspection applications
Technical Comparison
Feature AC Magnetic Yoke DC Magnetic Yoke AC/DC Dual-purpose Yoke
Detection Depth Surface 0-2mm Subsurface 0-6mm 0-6mm by mode switch
Surface Sensitivity Extremely high Medium Extremely high in AC mode
Magnetic Field Alternating, skin effect, micro vibration Stable, deep penetration, no vibration Dual performance
Lifting Force ≥45N (4.5kg) ≥177N (18kg) Meets both standards
Demagnetization Built-in AC reverse demagnetization External demagnetizer needed Built-in AC demagnetization
Application Scope Welds, thin plates, surface cracks Thick plates, forgings, subsurface defects All-purpose universal use
Power Supply AC 220V/50Hz Battery / AC-DC rectifier AC 220V/50Hz
Structure & Specifications (Model CDX-220)
  • Magnetic Core: High-quality low-loss silicon steel sheet
  • Magnetic Pole Head: Flat / U type with 10-220mm adjustable distance
  • Housing: Full plastic insulated shell, impact-resistant design
  • Control System: Load control switch, indicator light, leakage-proof power cable
Main Parameters
Model: CDX-220
Rated Voltage: AC 220V 50Hz
Magnetization Mode: Alternating current magnetization
Flat Pole Lifting Force: ≥6kg (≥58.8N)
U-type Pole Sensitivity: Clear indications shown by No.2 magnetic field indicator
Adjustable Pole Distance: 10-220mm
Dimension: 170×150×50mm
Weight: 2.5kg
Application: Inspection of flat welds, fillet welds and special-shaped welds
Operation Specifications
  1. Apply lubricant to pin joints before use; inspect power cable, leakage protection device and switch performance
  2. Switch on after pole heads fully contact workpiece; turn off switch before separating equipment
  3. Recommended pole distance for AC yoke: 50-150mm; effective detection area is 50mm on both sides of pole connection line
  4. Regularly test lifting force with standard test block to meet standard requirements
  5. Demagnetization: Slowly move AC yoke back and forth over workpiece to finish demagnetization
Selection Guide
Choose AC Yoke: For surface cracks on welds, thin plates and castings requiring high sensitivity and convenient demagnetization
Choose DC Yoke: For subsurface defects on thick plates and forgings requiring deep magnetic penetration
Choose AC/DC Dual-purpose Yoke: For multi-scene complex inspection, providing both surface and subsurface flaw detection with one unit
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AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects

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Product Detail
Brand Name :
TESTECH
Model Number :
CDX-220 AC and DC
Certification :
CE; ISO
Place of Origin :
CHINA
MOQ :
1 PIECE
Supply Ability :
500pcs
Contact Supplier
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects
AC/DC Magnetic Particle Yoke – Portable NDT Flaw Detector for Surface & Near-Surface Defects

Testech Group Co., Ltd

Verified Supplier
2 Years
beijing, beijing
Business Type :
Manufacturer
Main Products :
Non Destructive Testing Equipment, MPI Magnetic Particle Inspection, Coating Thickness Gauge
Total Annual :
250 US dollar-285 US dollar
Employee Number :
30~35
Certification Level :
Verified Supplier
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