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INTRON PLUS is corporate member of OIPEEC (International Organization for Rope reliability), ASNT, RSNDTTD

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INTRON PLUS was established in 1988 by Professor Vasily Sukhorukov and team of his followers. From the very beginning the company has been committed to the industrial non-destructive testing and measurement.

The thickness gauge INTROMET ITM-10 for copper thickness measurement in the through holes of printed circuit boards (PCB) was the first original product the company started its business in 1988. Numerous of ITM-10 and its successors has been sold on domestic market. In 1994 the company introduced innovative gauge INTROMET ITM-51, which has been successfully sold worldwide for years under the trademark CAVIDERM™ CDE-5100. Now days the company suggests our customers new model ITM-525.

In 1991 INTRON PLUS has introduced a new project for NDT of steel wire ropes. The rope tester INTROS developed in the middle of 1990-th and improved thereafter according to customers feedback is in big demand worldwide. INTROS conforms to requirements of international standards ASTM E1571, EN 12927-8, IMCA SEL 023, M 197.

In 2004 the company put on the market the new instrument INTROCON for non-destructive testing of steel cords in conveyor belts. INTROCON is designed to inspect belts whatever width and length during conveyor production run.
INTROS and INTROCON have been delivered to customers in 40 countries and gained good reputation due to its small weight and size, high accuracy, reliability, prompt maintenance.

During years 2002-2007 INTRON PLUS has completed a big job for development of MFL instrument for pipeline inspection, internationally recognized as PIG.
In 1993-2003 Intron Plus was Russian-American JV and a member of Measurement Innovation Corporation. During this decade managers from Intron Plus have been training business matters in the USA with company Transonic Systems Inc.

In 2009 INTRON PLUS has established JV INTRON BRASIL registered and located in Vitoria, Brazil. This JV is concentrated in non-destructing testing in different industries in Brazil, targeting to become a leading inspection service provider in the country.
To date INTRON PLUS is not only supplier of innovative equipment, but also is well known as provider of services in non-destructive testing of wire ropes, steel cord conveyor belts, storage tanks, production casings.

All products and services developed and supplied by INTRON PLUS are targeted towards satisfying the needs and requirements of our customers. Quality of our products is always priority of our business. INTRON PLUS has implemented a Quality Management System which complies with the International ISO 9001:2008 standard. Registration was approved by Bureau Veritas Certification and is regularly renewed since 2006.

INTRON PLUS is corporate member of OIPEEC (International Organization for Rope reliability), ASNT, RSNDTTD

The company now employs 40 employees, mostly educated as electrical and mechanical engineers, having experience and certification in non-destructive testing and technical diagnostics. We can speak to our customers in Russian, Ukrainian, English, German, Spanish, Portuguese, and Polish languages.

Products & Services
NDT of Wire Ropes

Wire ropes deteriorate during operation and need inspection throughout their service life for safety of personnel and operations, economic and safe extension of rope life, and satisfying regulatory agency requirements.
Wire rope tester INTROS is designed for accurate inspection of ropes made from ferrous wires, and comprises basic unit and magnetic head (US Pat. RE 40,166E)

Basic Unit

The basic unit is important part of wire rope tester INTROS. It supplies the whole instrument with electricity, controls the instrument, shows measuring data on-line and stores them for further downloading. The basic unit is compatible with each magnetic head. Connection with magnetic head is provided with connecting cable 5 or 8 m length. Connecting cable delivered with magnetic head.

Magnetic Heads

Magnetic heads for inspection of ropes up to 64 mm diameter have one-piece construction. They contain 2 flaps on hinge, and can be attached on to the rope under test and latched by the inspector manually. Rope is centered for better results with plastic liners installed into the magnetic head. In case with bigger ropes which are tested with magnetic heads MH 60-85, MH 80-120, and MH 100-150 magnetic attraction to the rope is much bigger. Installation technology for these magnetic heads is different. Their flaps are installed on to the rope one by one and connected thereafter with the cable. The MH 80-120 and MH 100-150 are also equipped with special roller frame for the installation, alignment on the rope, and moving along the rope.

*Type of Magnetic Head
Appropriate rope size
MH 6-24 - Diameter 6-24 mm
MH 6-24F - Diameter 6-24 mm
MB 8-24 - Diameter 8-24 mm
MH 20-40 - Diameter 20-40 mm
MH 24-64 - Diameter 24-64 mm
MH 24-64M3 - Diameter 24-64 mm
MH 40-64 - Diameter 40-64 mm
MH 60-85 - Diameter 60-85 mm
MH 80-120 - Diameter 80-120 mm
MH 100-150 - Diameter 100-150 mm
MH 124 - Flat 20 x 124 mm
MH 124R - Rubber flat 30 x 124 mm
MH 233 - Flat 38 x 233 mm
MH 233R - Rubber flat 35 x 233 mm
MH 450R - Rubber flat 24 x 450 mm

WINTROS® Software Package for rope tester INTROS

During inspection of the rope basic unit INTROS stores data for further downloading, analysis, and printing inspection report. This function is possible using the software WINTROS®. Besides, it is possible to show test data in form of LMA and LF traces on-line on the computer screen. For this purpose software WINTROS-RTV is used.
WINTROS® allows;
• Downloading data from basic unit;
• View the rope inspection traces;
• Detailed analysis of the rope traces;
• Zoom-in/Zoom-out
• Compare traces from different data files;
• Process traces: filtering, cutting-off, etc;
• Changing calibration and distance of the traces;
• Merging different traces into one;
• Set up and view the rejections threshold;
• Print the traces;
• Add comments to the traces;
• Create test results report;
• Modify the instruments setting.
• Export data to Word or Excel format


INTROS-AUTO is a successor of widely used wire rope tester INTROS.

INTROS-AUTO designed for non-destructive inspection of wire ropes with automatic data interpretation. Automatic interpretation is based on “traffic light” conception. Green light allows continuing rope operation; yellow light means defects reached 70% of discard riteria, and red light alerts that rope may no longer be used. Following criteria are used to discard rope – number of broken wires along lay length and loss of metallic cross section area in percentage. INTROS-AUTO stores detailed data, which can be downloaded and interpreted in regular manner.

The instrument consists of magnetic head and control and display unit connected with cable up to 80 m length. Magnetic head has strong permanent magnets, and measuring systems is equipped with Hall Effect sensors and coils. Optionally odometer can be fixed on the magnetic head. Control and display unit is powered with DC 12V, and has wireless connection with PC. INTROS-AUTO can be used for rope monitoring and implemented into hoisting controlling system. It has been proven as effective mean to inspect ropes at onshore drilling rigs.

Technical specification:

  • Principle of operation - Magnetic Flux Leakage
  • Embedded sensors - Hall effect sensors, coils
  • Diameter of rope - From 25 to 36 mm
  • Inspection speed - From 0.2 to 5 m/s
  • Ambient temperature - From -40 to +50°C
  • Power supply - DC 12 V
  • Weight of magnetic head - 15.5 kg
  • Weight of control and display unit - 3 kg
  • Dimensions of magnetic head - 400 х 182 х 185 mm
  • Dimensions of control and display unit - 311 х 147 х 114 mm
  • Explosion proof version - Yes
  • Ingress protection - IP66 (magnetic head) IP65 (control and display unit)

Intron Plus is now approaching similar conception to develop continuous wire rope monitoring systems (CWRMS) for high value subsea construction ropes. CWRMS can be installed on the rope in operation to collect data on request, it will have interface to PLC. CWRMS enables to extend rope life according to current technical condition, or to discard dangerous ropes to avoid losses.


INTROCON is designed to non-destructively inspect steel cords in conveyor belts for breakage, corrosion, check splicing areas that may not be revealed visually. Results obtained from inspection help making decision about technical condition of the belts, and so, prevent accidents and provide savings. The instrument can be used for inspection of conveyor belts during its manufacture or on-site, it requires no termination of production run.  Typical industries where INTROCON can be used are mining, steel plants, power stations, seaports, etc., INTROCON can be used for continuous monitoring technical condition of steel cord conveyor belts. INTROCON utilizes eddy-current method of operation and comprises battery powered data logger, scanner, and software WINTROCON. The scanner is recommended to install with a frame 10-20 mm above the belt surface nearby the drum. To avoid damage of the scanner by bulky material running with the belt, the scanner is fixed with spring system. Data logger is connected to the scanner with the cable and shows inspection data on 2 LED displays, simultaneously storing data for further downloading.

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