Magnetic Crack Detector - Portable Model

Why Toshniwal Technologies Portable Magnetic Crack Detectors

Toshniwal Technologies Portable Magnetic Crack Detectors set the standard for Non-Destructive Magnetic Particle Crack Inspection. The Magnetic Crack Detectors offer the flexibility, field intensity and part range capabilities to identify surface and sub-service defects across a broad range of parts.

Having options for all AC, FWDC and HWDC outputs, the Toshniwal Magnetic Crack Detectors can identify both sub surface and surface cracks.

Portable Magnetic Crack Detectors - Application

Portable Magnetic Crack Detectors help identify cracks in ferromagnetic substances may they be raw materials or finished goods. Since it is non destructive testing, the sample is not at all damaged and can be further processed as desired by the customer.

By applying longitudinal or circular current on the sample, circular or longitudinal magnetic fields are created around the sample respectively. If a crack is present, magnetic field lines will no longer be closed and north and south poles will be created. Once sprayed with micron sized iron powder, due to the north and south poles, the tiny iron particles will be attracted to the crack. The crack will be visible under White light.

Portable Magnetic Crack Detectors are used mostly where the sample to be tested is heavy and cumbersome to transport or when job work needs to be tested such as welding etc. The Magnetic Crack Detector is transported to the sample that needs to be tested and which is difficult to move. The testing is done on sight

Models

Great Features of Toshniwal Portable Magnetic Crack Detectors

• Infinite current control: Users can apply any value of current ranging between 0 and the maximum available, unlike other models where the value of current is determined by step increments

• Full Range of Currents: Toshniwal Magnetic Crack Detectors come with the options of using all three currents – AC, HWDC and FWDC

• Surface and Sub Surface Crack Detection: Toshniwal Magnetic Crack Detectors have the ability to identify both surface cracks and sub surface cracks

• Residual Inspection: Using FWDC or HWDC, samples can be further closely inspected because of the residual magnetic property

• Contact Prods: Contact Prods are used to pass the current through the sample by which the magnetic field is generated. Contact Prods can be placed anywhere on the sample making the procedure extremely flexible

• Prod Switch: The switch to shoot the current is locked on the Prod Handle, this makes the procedure very user friendly. The user is not required to go the main machine to switch on the current

• Dry Method: Small iron particles powder is either applied by hand, thrown or sprayed using the squeeze bulb. After fully applying the powder, current is applied to the sample and testing is done

Benefits of Toshniwal Magnetic Crack Detectors

• High Sensitivity – Small discontinuities and deep sub surface cracks can be detected

• Minimal surface preparation – No need to remove paint

• Customizable – The Magnetic crack detector can be designed entirely to fit the customer requirements

• Cost Savings – Due to the economic cost of the product and its ability to non-destructively test samples, major cost savings can be achieved

• Quality – The Magnetic crack detector easily identifies defective parts, whereby improving quality of the lot being dispatched

Selecting the Appropriate Model

Diameter of the Sample: The greater the diameter, the greater the output current required. The basic thumb rule is 500Amps per inch diameter.

Surface only or Subsurface crack detection: For surface only cracks, AC output Magnetic Crack Detector is needed which is satisfied with the A Magnetic Crack Detector series. For subsurface and surface cracks, AH Magnetic Crack Detector is recommended.

Optional Accessories

Double Prod Set: Two prods are mounted on a single handle which allows the operator to handle the Prod Set with one hand and simultaneously apply powder with the other. The trigger switch is located on the Prod Handle.

Contact Clamp Pair: An indispensable item for making quick contact at high density current with odd shaped pieces. Clamps are made of aluminium and are accurately machined for fast heat dissipation. Maximum opening is 5 cm.