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KARL DEUSTCH

The company KARL DEUTSCH was founded in 1949 and is currently managed by the third generation. It deals with the development and manufacture of equipment for non-destructive material testing (NDT).

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Germany

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Overview

A success story for more than 70 years

The company KARL DEUTSCH was founded in 1949 and is currently managed by the third generation. It deals with the development and manufacture of equipment for non-destructive material testing (NDT).

Mobile testing and measuring devices, stationary testing systems, sensors and chemical crack detection equipment are manufactured at two sites in Wuppertal by 130 motivated employees. Another 20 employees in foreign offices and a worldwide subsidiary network support the export business, which accounts for more than 50 % of sales.

Our customers are mainly from the metal producing and processing industry. Steelworks, suppliers to the automotive industry such as forges and foundries and manufacturers of ball bearings are important customers. Typical inspection tasks comprise weld seam inspection and the detection of casting cavities with ultrasound. Surface crack testing on forged parts is carried out using magnetic particles and the dye penetrant method. Safety parts for rail transport and aviation are also examined by means of NDT. Portable measuring instruments for wall and coating thickness measurement as well as for field strength and crack depth measurement complete the product range.

The company is rooted in Wuppertal in the region Bergisches Land. The deep connection to the city and area is actively lived. This includes extensive commitment to numerous projects that make the city more liveable. Examples are the “Nordbahntrasse” bike track and the Junior Uni.

Flexible and customer-oriented

Our mobile testing devices, stationary testing systems, sensors and chemical crack detection equipment are developed and manufactured in two plants in Wuppertal.

Specialists in the fields of UT, MT and PT work daily to further improve our products which have been established for years. Based on close interaction of the individual production areas, we offer our customers tailor-made technical solutions.

The concentration of all important production steps from purchasing, warehousing and production to sales and service enables short distances and flexible optimization.

Certification and testing of portable devices, for instance in the context of quality assurance requirements, is carried out quickly and easily in-house and usually takes not more than 4 days. Even with complicated tests, it takes a maximum of about 10 days before the device is ready for use again.

Customer service is a top priority for us: Nearly all technical questions about our products are answered by our application technology laboratory. The proximity to production and development enables us to provide the greatest possible customer orientation.

Products & Services
ULTRASONIC FLAW DETECTOR ECHOGRAPH 1095

Product Description

The ideal instrument for manual ultrasonic testing is equipped with the advantages of digital testing technology: robust mechanical and electronic components with a large, high-contrast screen and convenient, practical operator guidance make it virtually indestructible even in rough operating conditions and outdoors. In addition, the device also has a depth compensation and a back wall echo drop.

Optional enhancements with encoder use: Strip Chart and TOFD

With strip chart recording, the position for the respective amplitude is determined by a linear encoder and transmitted digitally to the device. The TOFD method (time-of-flight diffraction technique) established for weld seam testing allows the determination of defect position and size by evaluating diffraction signals generated at the edges of dicontinuities located in the sound path.

Results of wall thickness measurements can be stored in the cells of a matrix grid. Measuring points of the part to be tested are assigned to corresponding cells of the matrix grid. A color-coded visualization of the measured values within the matrix allows for a quick assessment of the flaw distribution, e.g. during the measurement of residual wall thickness on a pipeline.

A user-friendly system guide also supports less experienced ultrasonic testers in probe handling and instrument adjustment: Simply activate the wizard and then follow the instructions on the screen.

Key Facts

  • Light-weight (2 kg) and handy, H x W x D: 138 mm x 249 mm x 52 mm without protective frame, 149 mm x 262 mm x 54 mm incl. protective frame
  • Very large, high-contrast TFT color display (7 inch, resolution 800 x 480 pixels) with automatic brightness control and wide viewing angle
  • Plain text menu with safe and self-explanatory user guidance for simple and complete adjustments, support of the inspector during probe handling and instrument adjustment (DGS, DAC, TCG, AWS, JIS…)
  • 3 monitor gates with 3 assigned indication lamps
  • Pulse repetition frequency: up to 5000 Hz
  • Matrix storage
  • TOFD
  • B-scan representation
  • Strip chart
ULTRASONIC TESTING SYSTEM ECHOGARPH-STPS-PAUT PHASED ARRAY TESTING OF BARS

Product Description

The phased array version ECHOGRAPH-STPS-PAUT of the conventional bar testing system ECHOGRAPH-STPS allows for a fast 100 % inspection of the volume. Five probes generate overlapping sector scans with up to 20 shots each. In total, up to 120 parallel test channels are used.

The typical diameter range of bars to be tested covers 15 mm to 130 mm. The bars are transported through the testing system at speeds of up to 2 m/s.

The mechanical design is simple and compact. Very short changeover times (approx. five minutes) are possible due to simultaneous adjustment of all probe holders. The probe coupling is carried out wear-free via water jets (squirters). The spring-loaded suspension of the probe holders compensates the unavoidable mechanical straightness tolerances of the bars (typically 1 mm/m – 2 mm/m) and optimizes this type of system for testing of black bars.

Key Facts

  • Rapid bar testing for diameters 15 mm – 130 mm
  • Linear bar transport (up to 2 m/s)
  • 5 phased array probes
  • Coupling via water jets (squirters)
  • Very fast changeover
  • Compensation of straightness tolerances by spring-loaded suspension of the probe holders
  • Short untested ends
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