NDT Equipment – Karl Deutsch, Foerster

Flaw Detection (NDT)

Non-destructive testing (NDT) makes it possible to assess the condition of a product without damaging it – in production, during assembly and in service. In Lithuania UAB „Matavimo technologijos“ represents two German manufacturers: Karl Deutsch (ultrasonic, magnetic particle, penetrant testing, crack depth) and Institut Dr. Foerster (eddy current, magnetic induction).
Which method to choose:

Ultrasonic testing (UT) – wall thickness measurement (also through coatings and from one side) and detection of internal defects in castings, forgings and welds.
Eddy current testing (ET) – surface cracks in electrically conductive metals; suitable both for mobile inspection and for automated series testing in the line.
Magnetic particle testing (MT) – detection of surface and near-surface cracks in ferromagnetic parts, welds, forgings, axles.
Penetrant testing (PT) – surface defects in any non-porous material (steel, aluminium, ceramics, plastics).
Crack depth measurement – determining the depth and inclination of a crack already found, using the potential drop method.
Magnetic induction – hardness, structure, heat treatment and material mix-up testing in series production.

Standards referenced in the manufacturers’ documents: EN ISO 3452-2/-6 (PT materials), EN ISO 9934-2/-3 (MT media and equipment), EN ISO 3059 (UV and white light measurement), EN ISO 17638 (MT of welds), EN 1330-4 (UT terminology), ASME V Art. 6, ASTM E1444, ASTM E3022, AMS 2644. Personnel qualification according to ISO 9712.
In your enquiry please state: the material (ferromagnetic / non-ferrous / austenitic), part geometry and dimensions, the type and minimum size of defects to be found, the inspection scope (single / series, manual / automated), the environment (workshop, field, explosive atmosphere), the required standards and documentation needs.

Crack Depth Meters

The Karl Deutsch RMG 4015 uses the potential drop (four-point) method to determine surface crack depth of 0–99.9 mm in steel and 0–12 mm in aluminium, copper and brass, as well as the direction of inclined cracks. A pocket-size instrument with data logger, RS232 interface and straight, angled and inclined-crack probes – it complements MT and PT inspection when you need to assess whether a defect can be removed by grinding.

Eddy Current Testing (ET)

The Foerster DEFECTOMETER M is a mobile instrument that detects cracks from 20 µm, with automatic lift-off, zero and tilt compensation. The STATOGRAPH CM+/CM is a stationary system for series production up to 10 MHz with Industrial Ethernet, a parameter wizard and a web interface. A wide range of fixed and rotating probes is available, as well as custom probes designed for the part geometry.

Magnetic Field and Permeability

Foerster fluxgate magnetometers and permeability measuring systems: residual magnetism and demagnetisation checks, detection of ferromagnetic inclusions, measurement of relative permeability µr – portable instruments and systems for automation.

Magnetic Inductive Testing

The Foerster MAGNATEST D is the world's most widely used system for automatic sorting by material properties: testing of hardness, heat treatment depth, structure and material mix-ups over a frequency range of 2 Hz–128 kHz with harmonic analysis. Encircling coils for parts 5–200 mm in diameter. A compact solution is the MAGNATEST TCL.

Magnetic Particle Testing (MT)

Karl Deutsch offers a complete MT system: DEUTROPULS hand yokes (230 V / 42 V) and portable current generators up to 2890 A, FLUXA fluorescent and black testing media according to EN ISO 9934-2, the DEUTROMETER field strength and UV light meter, reference magnets, demagnetising coils and UV LED lamps. The equipment complies with EN ISO 9934-3 and ASTM E1444.

Penetrant Testing (PT)

KD-CHECK colour contrast (RDP) and fluorescent (FWP, FP-WB) penetrants, removers (PR, PREW) and developers (SD, DD, WDD), tested according to DIN EN ISO 3452-2/-6, with low sulphur and halogen content according to ASME V Art. 6. Sensitivity levels from 0.5 to 3, aerosols and canisters up to 25 l, water-based eco-friendly variants. For fluorescent testing – 365 nm UV LED lamps.

Ultrasonic Testing (UT)

The Karl Deutsch ECHOMETER series measures wall thickness from 0.5 mm to 400 mm (depending on the probe) and sound velocity of 100–19,999 m/s; the TC and 1077 models measure through paint or plastic coatings up to ~4 mm without cleaning the surface. The ECHOGRAPH 1095 is a handheld flaw detector with DGS, DAC, TCG, AWS and JIS evaluation methods, 3 monitors and an IP65 housing. Suitable for corrosion inspection of pipelines and tanks and for testing castings, forgings and welds.