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Henry Dekker

Our mission, our vision and our way drive us in all that we do. Find out why Henry Dekker Co Ltd is much more than an NDT Equipment Manufacturer and Trader.

Product, Service

South Africa

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Overview

Incorporated in 2009 by a team of well experienced Physics Engineers, Henry Dekker has continually developed a wide range of Laboratorial, NDT, Quality control and measurement instruments. Henry Dekker Co Ltd is based in the greater China with offices in Africa south of Sahara, South Africa, Zimbabwe and United Kingdom, the company has an established worldwide distribution network and ISO 9001 accreditation. Our Company is also engaged on Mechanical Engineering.

Our Foundations
Our mission, our vision and our way drive us in all that we do. Find out why Henry Dekker Co Ltd is much more than an NDT Equipment Manufacturer and Trader

Our Mission
To be a recognized provider of NDT, Quality control and engineering products and services while delivering highest quality, superior customer service on every transaction, every time.

Our People
Only a few people in this world get excited about Non-destructive and Testing. Most of them work for HenryDekker Co Ltd

Why Choose Us?
Our outside agency services company provides off the shelf expertise to companies and individuals that are in need of experienced and qualified Level III staff. Our Level III’s are qualified both to ASNT and PCN Including Phased Array and ToFD Level III) requirements and HENRY DEKKER also offers Outside Agency Consultancy Services in all sectors, including: On-site Training and Examinations, Procedure and Technique Writing, Procedure Qualification and Approval
Development, Writing and Approval of Written Practices

Products & Services
EMAT Series Automatic Ultrasonic Inspection System

At present, Piezoelectric ultrasonic flaw detection which domestic use often requires a coupling agent in order to achieve a good coupling with the DUT, and the DUT high surface quality requirements, so it is difficult to apply to the detection environment of high temperature, high speed and rough surfaces surroundings.The EMAT solves this problem, it does not require a coupling agent in the detection and the detection result is true and reliable, high repeatability.
Compared piezoelectric ultrasonic testing which domestic uses, an electromagnetic ultrasonic probe with high coverage, the number of probes greatly reduced, relatively simplified mechanical structure for seamless steel tubes, steel source material detection, line detection of train wheels and axles.

Performance Index
– Comply with European Standard (EN12668-1)
– Excitation pulse intensity: 600Vpp
– The number of excitation pulses: 1-25 continuously adjustable
– Excitation pulse phase: 0-180 degree continuously adjustable
– Frequency range: 0.3-1.5MHz continuously adjustable
– Sampling frequency / bit: 100MHz / 10Bits
– Bandwidth: 300KHz-2MHz
– Detection mode: positive and negative detection, full-wave detector and RF
– Range Adjustment step: 1mm (shear)
– Gain (attenuator) adjusting step: 80dB / 0.1,2.0
– Attenuator accuracy: <± 1dB / 12dB
– Equivalent input noise: – Vertical linearity error: <3%
– Dynamic Range: ≥30dB
– Excitation mode: 50Hz AC

Automatic Ultrasonic Inspection System for High-pressure Tank

Application

–Transportation, chemical, fire, marine, energy, construction, industry, pressure cooker bottle
–Ship bottle and container transport product automatic detection equipment

Inspection technology

Cylinders for straight line part of the two-way (longitudinal and transverse) ultrasonic flaw detection, automatic detection of interior and exterior and internal longitudinal and transverse defects, automatically detect pot bottles of wall thickness

Test standard

GB4730-2005 《Nondestructive testing of pressure equipment》
GB/T5777-2012《Seamless steel pipe methods for ultrasonic testing》
GB/T18248《 Seamless steel tubes for gas cylinder》

Technological advantage

1) Instrument parameters: Can meet eu standards (EN12668-1) , and the standard factory inspection, while providing European standard certificate.

2) Inspection Speed ( repeat frequency) : The line speed of up to 60 m/min, Repetition frequency up to 5 KHZ(And the detection rate is closely related to the technical specifications for the repetition frequency)

3) Channel independency: Strict independence between channels, each channel has its own existence independent transmit and receive timing control

4) Instrument scalability: To meet the higher testing standards or the actual needs of users, the number of channels can be expanded.

5) Modular design: convenient service

6) Machine design、processing、installation and debugging:large mechanical design team,Trusted cooperative processing units, assembly debugging standard management, accumulated a wealth of experience in similar projects, supporting the well-known brands purchased parts.

7) Control segment: using well-known brand components and customer production lines matching OP operator terminal display operating status and fault information standard design

8) C-scan thickness of image display, Thickness measurements show grade in at least 64 kinds or more, at the same time obtain circumferential and axial thickness distribution

The mechanical structure form

-Gantry beam type (traditional)
-Can also be customized according to the specific requirements of the user site

Automatic Ultrasonic Inspection System for Profile Series

Application field

Automatic detection system of steel, automobile, machinery, electricity industry of round billet, billet and other profiles, mainly covering aluminum rod (plate) and iron (board), copper (board), titanium rod (plate), and other types of alloy material automatic ultrasonic testing.

Detection technology

Immersion ultrasonic testing method, ultrasonic detecting method, water glue water ultrasonic testing method
Can detect the internal and surface of the workpiece pores, cracks, slag inclusions and other defects

Testing standard

-GB/T5777-2008 “Seamless steel tube ultrasonic flaw detection method”
-API 5L API Standard “Line Pipe specification”
API 5CT API Standard “ bushing and pipeline specification”
-ASTM 213M “Metal pipe ultrasonic testing method”
-ASTM A106 ASTM Standards “Seamless carbon steel pipe for high temperature”
-ASTM A519 ASTM Standards “Mechanical engineering with carbon steel and alloy steel seamless steel tube”

Technological advantage

1) Instrument parameters: Can meet eu standards(EN12668-1) and the standard factory inspection, while providing European standard certificate.

2) Inspection Speed(repeat frequency): The line speed of up to 60 m/min, Repetition frequency up to 5 KHZ(And the detection rate is closely related to the technical specifications for the repetition frequency)

3) Channel independency: Strict independence between channels, each channel has its own existence independent transmit and receive timing control

4) Instrument scalability: To meet the higher testing standards or the actual needs of users, the number of channels can be expanded.

5) Modular design: convenient service

6) Machine design、processing、installation and debugging:large mechanical design team,Trusted cooperative processing units, assembly debugging standard management, accumulated a wealth of experience in similar projects, supporting the well-known brands purchased parts.

7) Control segment: using well-known brand components and customer production lines matching OP operator terminal display operating status and fault information standard design

8) C-scan thickness of image display, Thickness measurements show grade in at least 64 kinds or more, at the same time obtain circumferential and axial thickness distribution

The mechanical structure form

-Gantry beam type (traditional)
-Immersion tank type
-Can also be customized according to the specific requirements of the user site

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