Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"AC\/DC Magnetic Particle Yoke \u2013 Portable NDT Flaw Detector for Surface & Near","imgUrl":"https:\/\/img.chinax.com\/nimg\/75\/e2\/6565a2b82f498633dcfaf8b85bdd-200x200-1\/ac_2fdc_magnetic_particle_yoke_e2_80_93_portable_ndt_flaw_detector_for_surface_26amp_3b_near.jpg","attrs":{"Brand Name":"TESTECH","Model Number":"CDX-220 AC and DC","Certification":"CE; ISO","Place of Origin":"CHINA"}}
{"title":"Multifunctional Fluorescent MPI Magnetic Particle Inspection For Ring Shaft","imgUrl":"https:\/\/img.chinax.com\/nimg\/42\/80\/9228ede1219d31ff811a234763d2-200x200-1\/multifunctional_fluorescent_mpi_magnetic_particle_inspection_for_ring_shaft_workpieces.jpg","attrs":{"Brand Name":"TESTECH","Model Number":"CDG-6000","Certification":"CE; ISO","Place of Origin":"CHINA"}}
{"title":"CJD-3000 Magnetic Particle Flaw Detector With AC Magnetization Demagnetization","imgUrl":"https:\/\/img.chinax.com\/nimg\/b3\/bb\/5c5a30ceaa7b767f6bdfb0a348bc-200x200-1\/cjd_3000_magnetic_particle_flaw_detector_with_ac_magnetization_demagnetization.jpg","attrs":{"Price":"Discount if Large Quantity","Place of Origin":"CHINA","Brand Name":"TESTECH","Certification":"CE; ISO"}}
{"title":"CDG-2000 AC Electrode Spacing 0-600mm Crankshaft Fluorescent MPI Inspection OEM","imgUrl":"https:\/\/img.chinax.com\/nimg\/60\/2e\/e980bc4848eaccdaf64a62fe5c1f-200x200-1\/cdg_2000_ac_electrode_spacing_0_600mm_crankshaft_fluorescent_mpi_inspection_oem.jpg","attrs":{"Price":"Discount if Large Quantity","Place of Origin":"CHINA","Brand Name":"TESTECH","Certification":"CE; ISO"}}
{"title":"AC DC Half Wave Fluorescent Magnetic Particle Flaw Detection Machine","imgUrl":"https:\/\/img.chinax.com\/nimg\/2c\/e0\/9d5b3259b5ae4c7e8ef14cf20bbf-200x200-1\/ac_dc_half_wave_fluorescent_magnetic_particle_flaw_detection_machine.jpg","attrs":{"Price":"Discount if Large Quantity","Place of Origin":"CHINA","Brand Name":"TESTECH","Certification":"CE; ISO"}}
{"title":"380V 3PH 50Hz MPI Magnetic Particle Inspection Equipment With Demagnetization","imgUrl":"https:\/\/img.chinax.com\/nimg\/ae\/68\/2d9da53a7db18a9118997e6755c5-200x200-1\/380v_3ph_50hz_mpi_magnetic_particle_inspection_equipment_with_demagnetization.jpg","attrs":{"Price":"Discount if Large Quantity","Place of Origin":"CHINA","Brand Name":"TESTECH","Certification":"CE; ISO"}}
{"title":"NDT Testing Fluorescent MPI Magnetic Particle Inspection Manual Automatic","imgUrl":"https:\/\/img.chinax.com\/nimg\/83\/24\/1e5c9374153d60ca4c512a6abd91-200x200-1\/ndt_testing_fluorescent_mpi_magnetic_particle_inspection_manual_automatic.jpg","attrs":{"Price":"Discount if Large Quantity","Place of Origin":"CHINA","Brand Name":"TESTECH","Certification":"CE; ISO"}}
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
Apply lubricant to pin joints before use; inspect power cable, leakage protection device and switch performance
Switch on after pole heads fully contact workpiece; turn off switch before separating equipment
Recommended pole distance for AC yoke: 50-150mm; effective detection area is 50mm on both sides of pole connection line
Regularly test lifting force with standard test block to meet standard requirements
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
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
18 years
Total Annual:
250 US dollar-285 US dollar
Employee Number:
30~35
Ecer Certification：
Verified Supplier
TESTECH GROUP is a high-tech company where we focus on the research, development, and manufacturing of ultrasonic equipment as well as ultrasonic probes. Our enterprise still continues to devote itself to nondestructive testing and we are the leading manufacturer of nondestructive testing instrume...
TESTECH GROUP is a high-tech company where we focus on the research, development, and manufacturing of ultrasonic equipment as well as ultrasonic probes. Our enterprise still continues to devote itself to nondestructive testing and we are the leading manufacturer of nondestructive testing instrume...
