Power supply: AC 220V, 50-60Hz (Available 110V / 240V and etc.)
New design with more durable shell, long service life in high temperature and complicated environment.
Available...
Magnetic Flaw Detector
Your Professional Magnetic Flaw Detector Supplier
Chongqing Leeb lnstrument Co.Ltd, located at High-tech industrial Development Zone of Chongqing, China. We specialize in manufacturing, researching and sale of NDT and Precision Testing Instruments over twenty years, including various kinds of Hardness Tester, Microscope, Surface testing device, Ultrasonic equipment and online Automatic testing systems.
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![Portable Magnetic DC and AC Yoke]()
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![Magnetic Particle Detector with Different Probes]()
Magnetic Particle Detector with Different ProbesA special instrument for small portable non-destructive testing, non-destructive testing instrument is small principle design using magnetized workpiece into the crack.read more
Stable and... -
![Magnetic Particle Inspection Yoke MPI]()
Magnetic Particle Inspection Yoke MPINew concept of the magnetic yoke flaw detector is applied.read more
Using many advanced techniques to the formation of induced magnetic field.
Controller and solid state electronic...
Why Choose Us
Certifications
We are a professional factory certified to ISO 9001 standards. Our products are tested using high-quality equipment and meet CE, FCC, and RoHS certification requirements.
Sales Market
In addition to meeting the needs of customers in mainland China, our products are also exported to advanced manufacturing countries such as Israel, the United States, Canada, Germany, France, Italy, Spain, and South Korea.
Our Services
We offer fast shipping with delivery in just 7 business days. All products come with a warranty of one to three years.We also provide free technical support and training.
Magnetic Flaw Detector
A magnetic flaw detector is a non-destructive testing tool that utilizes magnetic fields and their variations to detect internal or surface defects in materials. It is widely used in industrial manufacturing, aerospace, construction, and other fields to ensure the integrity and safety of materials and structures.
Technical Parameters
|
Model |
Portable Magnetic DC and AC Yoke Leeb 620A |
|
Power supply |
Alternating Current & Direct Current |
|
Input votage |
AC 220V, 50-60Hz (Optional: 110V, 240V) |
|
Working power |
AC 2.2A, DC 1.5A |
|
Magnetization pole distance |
0-220mm |
|
Lift weight |
> 7KG (AC), >22.2KG (DC) |
|
Work period |
5 seconds on -5 seconds off |
|
Temperature |
(-10 - 50)℃ |
|
Overall dimension |
140 * 230 * 45mm |
|
Net Weight |
3.0Kg (Yoke and DC power supply) |
|
Standard Delivery |
Main machine, Input electric cable, DC Magnetized power supply, Charger, Box, Manual, Certificate |
|
Optional Accessories |
Built-in UV light, Built-in white light, various types of Probes |
Functions & Features
1. Power supply: AC 220V, 50-60Hz (Available 110V / 240V and etc.)
2. New design with more durable shell, long service life in high temperature and complicated environment.
3. Available built-in UV light, built-in white light.
4. Small volume, light weight, large lifting force, and adaptable joint.
5. Detecting of the weld bead, steel pipe, pressure vessel, and the parts with complicated figure.
6. This model has applied for national patent technology.
7. Portable Magnetic DC and AC Yoke.
8. Carried with JB/T7411, ASTM E1444-05, ASTM E709, EN10228-1, ISO 9934.
Advantages
Non-Destructive
Magnetic flaw detection is a non-destructive testing method, meaning it does not damage or alter the material being inspected.
High Sensitivity
The technique is highly sensitive to surface and near-surface defects.
Quick and Efficient
Inspections can be performed quickly, especially with portable or automated systems.
Cost-Effective
Compared to some other non-destructive testing methods, magnetic flaw detection is relatively low-cost.
Types of Magnetic Flaw Detectors
Magnetic flaw detectors can be classified into several types based on their design and the specific magnetic testing technique they use.
Portable Magnetic Particle Inspection (MPI) Equipment
Portable MPI equipment is widely used for on-site inspections. It consists of a handheld magnetizing device and a set of magnetic particles (either dry or suspended in a liquid). The process involves:
Magnetizing the Material: The handheld device generates a magnetic field within the material.
Applying Magnetic Particles: The magnetic particles are applied to the surface of the material. These particles accumulate at the locations of magnetic flux leakage, indicating the presence of a defect.
Visual Inspection: The inspector examines the material surface for accumulations of magnetic particles, which highlight the defects.
Stationary Magnetic Particle Inspection Systems
Stationary MPI systems are used for high-volume inspections in manufacturing environments. They include large magnetizing coils, baths for liquid magnetic particle suspension, and automated handling systems. These systems provide more consistent and reliable inspections compared to portable equipment.
Magnetic Flux Leakage (MFL) Systems
MFL systems are used for inspecting pipelines, tanks, and other large structures. They typically consist of a magnetizing unit and sensor arrays mounted on robotic crawlers or scanning devices. MFL systems can detect both surface and subsurface defects and are capable of covering large areas efficiently.
Eddy Current Testing (ECT)
While not a magnetic flaw detector per se, Eddy Current Testing (ECT) is related and sometimes used in conjunction with magnetic methods. ECT uses alternating current to induce eddy currents in the material. Defects disrupt these currents, which are then detected by sensors. ECT is particularly effective for inspecting non-ferromagnetic materials, such as aluminum or copper, but can also be used for certain applications involving ferromagnetic materials.
Precautions for using the multi-function magnetic powder flaw detector
1. Working Cycle of the Instrument: It is recommended that for long continuous operations, the magnetization time should be ≤ 3 seconds, and the interval time should be ≥ 5 seconds.
2. Before use, check if the supply voltage matches the instrument's requirements. If the voltage is too high or too low, it may damage the instrument or affect the flaw detection results.
3. During use, ensure that the probe's end face maintains good contact with the workpiece before pressing the magnetization switch for optimal magnetization effect.
4. Although the instrument has excellent no-load overcurrent protection circuits, try to avoid no-load operation to reduce unnecessary temperature rise.
5. The magnetic particle flaw detection gauge can work continuously. If overheating occurs, stop using it, investigate the cause, and only resume operation once the issue is resolved.
6. The flaw detection equipment and its accessories should be used or stored in clean, dry, and non-corrosive environments.
7. When repairing the instrument, be aware of the high voltage risks inside.
8. Do not switch off the power supply when pressing the magnetization switch.
9. The detector’s casing must be reliably grounded.
10. In case of circuit malfunctions that cannot be repaired, please return the instrument for repair.
Certifications
FAQ
As one of the most professional magnetic flaw detector manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy discount magnetic flaw detector in stock here from our factory. Contact us for customized service.