Tiede Non-Destructive Testing Equipment and Flaw Detectors

Tiede (Magnaflux) magnetic particle inspection units, stationary test benches, power packs, magnetizing coils, and optical testing accessories for aerospace and manufacturing quality control.

Tiede Universal series magnetic particle test benches

Stationary magnetic particle inspection benches Universal SW and WE are engineered to detect longitudinal and transversal surface flaws in machined parts. Two independent magnetizing circuits and automated bath circulation ensure thorough evaluation of ferromagnetic components.

Adjustable clamping distance from 1200 to 3200 mm for heavy parts up to 1000 kg
Multidirectional magnetization delivering simultaneous dual-axis defect detection
Integrated demagnetization routine for both circuits following the inspection shot
Siemens PLC platform storing up to 500 programmable component testing parameters

Ferrotest stationary and mobile high current power packs

High-amperage AC and rectified current generators in the Ferrotest line are built for magnetization of heavy forgings, welded structures, and railway axles. Modular hardware provides infinitely variable current control and steady output during heavy-duty inspection shifts.

Output test current ranges from 1000 to 10000 amperes in AC and rectified modes
Thyristorized phase control providing stepless current regulation under load
Built-in automatic decay demagnetization sequence for large structural parts
Heavy-duty output lugs for connecting wrap-around cables and prod electrodes

Portable electromagnetic yokes for field flaw detection

Electromagnetic testing yokes operating on AC and DC power deliver localized flaw inspection across pipe welds, structural frames, and machinery housings. Articulated pole legs contour closely against angled joints, fillets, and curved pressure vessel surfaces.

Line-powered 230 V models along with battery-operated packs for field testing
Double-jointed articulating legs accommodating complex fillet weld contours
Lifting force exceeding 4.5 kg in AC mode and up to 18 kg in rectified DC mode
Rugged impact-resistant sealed body featuring an ergonomic microswitch trigger

Longitudinal magnetizing coils and flexible power cables

Encircling rigid coils and flexible heavy-current cables establish longitudinal magnetic fields inside shafts, tubes, hydraulic rods, and threaded fasteners. High-temperature insulation wraps and heavy copper conductors withstand severe duty cycles without degradation.

Round and rectangular tunnel coils spanning diameters from 150 to 800 mm
Coil carriages with guide rollers facilitating movement along testing benches
Extra-flexible high-strand copper cables protected by resilient silicone covers
Continuous tunnel solenoids engineered for inline production inspection lines

Contact pads, lead plates and clamping electrode heads

Replaceable contact pads, braided copper meshes, and shaped lead plates transfer high magnetizing current pulses into workpiece end faces. Resilient pad materials prevent contact arcing, reduce interface resistance, and eliminate localized metallurgical burn marks.

Braided copper mesh and sponge pads offering superior thermal conductivity
Form-fitting lead contact plates designed for rough forged component faces
Quick-change clamp fixtures compatible with Universal pneumatic headstocks
Internal water-cooled channels built into heavy-duty high-amperage electrodes

UV-A LED inspection lights and optical accessories

Narrowband UV-A LED lamps emitting peak wavelength at 365 nm illuminate fluorescent indications during magnetic flaw evaluation. Zero visible light leakage and uniform beam coverage assist inspectors in identifying microscopic hairline fatigue cracks and grinding tears.

High-output UV-A LED arrays delivering irradiance above 4500 uW per sq cm at 38 cm
Integrated Wood filter glass providing sharp cutoff of ambient visible glare
Fanless convection cooling housing preventing dust ingestion in workshop air
Portable battery-powered lamps and overhead stationary fixtures for dark booths

Dual-circuit magnetization technology in Tiede Universal testing benches

Stationary magnetic particle inspection benches Universal SW and WE manufactured by Tiede feature independent adjustment across two alternating current circuits, enabling simultaneous detection of longitudinal and transversal surface flaws in a single testing cycle.

The first circuit directs current directly through the clamped workpiece, generating a circular magnetic flux pattern to reveal longitudinal cracks. The second circuit energizes an encircling coil that traverses the bench bed, inducing longitudinal magnetic flux to evaluate transversal defects.

Independent thyristor phase control prevents magnetic saturation across transitional diameters, avoiding misleading indications.

Pneumatic clamping headstock design and metallurgical burn prevention

Transferring magnetizing current pulses reaching thousands of amperes demands dependable electrical contact between headstock chucks and component end faces.

Tiede testing systems utilize regulated pneumatic clamping cylinders paired with replaceable contact pads fabricated from high-purity copper mesh and ductile lead plates.

The pliable lead sheet contours against rough forged textures, expanding the effective contact footprint while suppressing interface electrical resistance.

This configuration prevents localized contact arcing and metallurgical heat damage, preserving the precision geometry of critical bearing seats and machined journals.

Suspension recirculating fluidics and particle bath agitation systems

Consistent flaw detectability across testing shifts depends on maintaining uniform concentration of fluorescent ferromagnetic particles within the suspension liquid.

Universal testing benches incorporate non-magnetic stainless steel collection pans and integral reservoir tanks equipped with continuous vortex agitation pumps. Recirculation flow prevents particle sedimentation along tank corners, ensuring uniform bath density throughout operation.

Suspension delivery to the workpiece utilizes wide-spray automated nozzles that flood components gently without washing away accumulated magnetic indications settled over fine micro-cracks.

Automated decay demagnetization sequences for forgings and heavy axles

Residual magnetic fields remaining inside machinery components following particle inspection can attract grinding swarf, disrupt proximity sensors, and accelerate mechanical bearing wear.

Tiede Universal units and Ferrotest power packs incorporate automated demagnetization programs utilizing decaying alternating current waveforms. The system controller progressively attenuates current amplitude from peak level down to zero across continuous frequency shifts.

For heavy structural forgings and thick alloy sections, low-frequency demagnetization programs penetrate deeply into the core, delivering residual field reduction.

Centrifuge sedimentation testing and bath concentration monitoring

Routine verification of magnetic bath quality forms a foundational requirement within non-destructive testing quality frameworks. Settling volume measurements utilize calibrated pear-shaped centrifuge tubes conforming to ASTM E 709 dimensions.

An agitated bath sample rests undisturbed inside the collection vessel for thirty minutes, allowing ferromagnetic particles to settle into the calibrated stem.

Regularly logging volumetric solids confirms proper pigment balance and alerts technicians to oil contamination or particle agglomeration before inspection sensitivity deteriorates.

Fluorescent inspection optical criteria and UV-A LED illuminator design

Fluorescent particle testing demands strictly controlled ultraviolet illumination across the inspection booth. Tiede UV-A LED lighting modules emit narrowband radiation centered at 365 nanometers without stray visible light emissions.

Integrated Wood filter optics absorb wavelengths exceeding 400 nm, providing a high-contrast dark field where fluorescent flaw indications fluoresce brightly under minimal ambient glare.

Smooth irradiance profiles across the inspection zone reduce optical reflection off wet surfaces, preventing operator eye strain during intensive inspection shifts.

Tiede and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Tiede and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.