大検 List of Products and Services

Our company offers a "Helium Leak Testing Service" capable of detecting minute leaks from invisible damages. We provide tests such as the "Vacuum Hood Method," which quantifies the total leakage of the test specimen, and the "Sniffer Method," which can identify leak locations. For specialized products, we also conduct proof tests using the mop-up method to verify the effectiveness of the inspection methods. 【Achievements (Partial)】 ■ Plant Piping (Pressure Integral Method) Confirming no leaks from flanges and welds ■ Air Conditioning Equipment (Sniffer Method) Detecting leaks from corrosion points due to aging ■ Vacuum Equipment (Vacuum Hood Method) Confirming no leaks from pressure vessels and vacuum tanks *Please also refer to the accompanying materials. Feel free to contact us with any inquiries.

• Other contract services

Our company actively utilizes phased array ultrasonic testing for the quantitative evaluation of damage and corrosion in steel materials. The testing conducted with this device does not require any preprocessing such as the removal of coatings or rust, and after data acquisition, it is possible to evaluate the results off-site. It offers superior workability compared to conventional ultrasonic devices. 【Features】 ■ Quantitative evaluation of steel material thinning ■ No preprocessing required, such as removal of coatings or rust ■ Linear scanning allows for inspection of a wide area at once without physically moving the probe, resulting in reduced inspection time ■ Clear reporting through images is possible *For more details, please refer to the PDF document or feel free to contact us.

• Other inspection equipment and devices

This is an introduction to inspections using radiation. It may be easier to understand if you imagine X-rays used in health check-ups. We can provide clear information in film or data format, and we have many certified technicians according to JIS Z2305. If you want to check the interior, please consider RT inspections based on the standards. 【Target】 ■ Vehicles ■ Construction-related ■ Public works, etc. ■ Aviation and shipping-related ■ Building renovations ■ Companies involved with manufacturing *For more details, please contact us or refer to the PDF.

• X-ray inspection equipment
• Analytical Equipment and Devices

The airtightness test "Helium Leak Test" is one of the non-destructive inspections that is considered important not only in Japan but also in various countries around the world, including Europe and the United States. There are various testing methods depending on the purpose, such as quantifying the amount of leakage by pressurizing the inside of the product with vacuum or helium gas, and identifying leak points from invisible cracks. Ultimately, this leads to the prevention of leakage accidents. In this instance, we will introduce the challenges faced by our customer and the solutions provided. ■Challenge Due to phenomena such as the building's air conditioning (absorption chiller) not heating or cooling properly, it is necessary for the supplying manufacturer to respond urgently. ■Solution We conducted a leak inspection after vacuuming the piping related to the airtightness test "Helium Leak Test" to identify the leak points. The manufacturer then repaired the identified areas, and a re-inspection of the repaired areas confirmed that there were no leaks. *For more details, please contact us or refer to the PDF.

• Other processing machines
• Contract Inspection
• Leak Testing Equipment

Our company actively utilizes a method using DRT (Digital Radiography Technology) with IP (Imaging Plate) media, which replaces traditional film, to examine the internal structures and conditions of concrete structures, piping, cast steel products, and more. We can now provide imaging data as a replacement for film. One of the features of this machine (FUJIFILM Dynamix HR2) is that it allows inspection of objects with significant thickness differences in a single shot, thereby reducing inspection time. **Features of inspection using this machine (FUJIFILM Dynamix HR2):** - Analysis and measurement using dedicated software - Density correction is possible - Can inspect objects with significant thickness differences in a short time - Clear reporting through images *For more details, please refer to the PDF document or feel free to contact us.*

• Image Processing Software
• Image analysis software
• Contract Inspection

Our company actively utilizes a method using DRT (Digital Radiography Technology) with IP (Imaging Plate) media, which serves as a replacement for traditional film, to examine the internal structures and conditions of concrete structures, piping, cast steel products, and more. We can now provide imaging data in place of film. One of the features of this device (FUJIFILM Dynamix HR2) is that it can inspect objects with significant thickness differences in a single shot, thereby reducing inspection time. **Features of inspections using this device (FUJIFILM Dynamix HR2):** - Analysis and measurement using dedicated software - Density correction is possible - Can inspect objects with significant thickness differences in a short time - Clear reporting through images *For more details, please refer to the PDF document or feel free to contact us.*

• Image Processing Software
• Image analysis software
• Contract Inspection

The "DYNAMIX HR2" is an IP image reading device that achieves overwhelming high image quality through high levels of signal-to-noise ratio (SNR), spatial resolution, and density resolution. This product realizes high inspection accuracy with an automatic density correction function that provides optimal image quality for each object, and a wide dynamic range technology that inherits the trusted FCR technology. 【New Features】 ■ "Hand-fed IP System" that allows direct insertion of IP ■ "Special Cut IP System" that can be shaped appropriately for the inspection target ■ Simplified thickness inspection with the automatic measurement tool "Dynamix VU Thickness" ■ Automatic adjustment of density and contrast to ASTM standard images with the "Contrast Normalization Function" ■ Support for long IPs that can efficiently capture pipe welds *For more details, please refer to the PDF materials or feel free to contact us.

• Image Processing Software
• Image analysis software
• Other image-related equipment

Magnetic particle testing is an extremely precise surface inspection method that can detect fine surface cracks that are not visible to the naked eye. Phased array ultrasonic testing does not require any surface preparation, such as the removal of coatings or rust, and allows for data collection and evaluation to be done off-site. It also offers superior workability compared to conventional ultrasonic equipment. 【Customer's Challenge】 Significant damage was found on a steel bridge, and a non-destructive test that is not easily detectable by visual inspection was urgently needed. 【Solution】 We visited on the same day we were contacted and conducted inspections using magnetic particle testing and ultrasonic testing until the repair of the damage was completed. *For more details, please contact us or download the PDF to view.

• X-ray inspection equipment

Helium leak testing is one of the non-destructive inspections that is considered important not only in Japan but also in various countries around the world, including Europe and the United States. It is widely conducted in various fields such as chemical plants, nuclear power, and space development, and engineers need to have sufficient knowledge and experience regarding the characteristics of vacuum and leakage. There are various inspection methods tailored to specific purposes, such as quantifying the amount of leakage by pressurizing the inside of a product with vacuum or helium gas, and identifying leak points from invisible cracks. [Customer's Issue] There has been a phenomenon where the building's air conditioning (absorption chiller) does not heat or cool properly, necessitating urgent action from the supplier. [Solution] Conduct a leak test after vacuuming the piping system using helium leak testing to identify the leak points. The manufacturer will repair the identified areas, and a re-inspection will be carried out to confirm that there are no leaks. *For more details, please contact us or refer to the PDF.

• Other processing machines

"Valve inspection and radiation transmission testing using gamma rays" is a non-destructive test conducted for complex cast steel products and to investigate the corrosion levels inside boiler tubes. We carry out internal defect detection in materials and structures! We have established an ASME room that complies with ASME standards, and we have certified personnel with SNT certification and ACCP certification from the association. We also provide consulting services for the non-destructive testing department in accordance with ASME. 【Customer's Challenge】 Due to bottlenecks in subsequent processes, urgent decisions are required, so we want to quickly check the inside of the castings! 【Solution】 By utilizing radiation transmission testing, we can conduct imaging on the same day the products are brought in. 【Benefits】 ◆ Full imaging is possible in the irradiation room. ◆ Technicians are available nationwide. ◆ Results can also be reported on the same day (subject to consultation). *For more details, please contact us or download the PDF to view.

• Contract Inspection

Phased array inspection utilizes ultrasonic testing methods, eliminating the need for surface preparation such as the removal of coatings or rust, and allows for evaluation after data collection. It also offers superior workability compared to conventional ultrasonic devices. (Using Olympus model [Olympus Omniscan-MX2]) 【Customer's Challenge】 The surface rust on the water pipe is severe, and we want to quantitatively investigate the internal wall thinning, but the results of conventional ultrasonic measurements are point measurements. 【Solution】 By proposing the use of phased array technology, we can provide clear reports on the area of wall thinning investigation, even without specialized knowledge, through visualized images! 【Features of Phased Array Inspection】 ◆ Reduction of inspection time ◆ No surface preparation required, such as removal of coatings or rust ◆ Clear reporting through images ◆ Quantitative evaluation of wall thinning in steel materials *For more details, please contact us or download the PDF for further information.

• Contract Inspection

"Valve inspection and radiation transmission testing using gamma rays" is a "non-destructive testing" method used for complex cast steel products and for investigating the corrosion levels inside boiler tubes. As part of our initiatives, we have established an ASME department that complies with ASME standards and also provides consulting services in the non-destructive testing sector. We can accommodate inspections and results in as little as one day! *Consultation required. 【Features】 ■ We can handle short delivery times as much as possible. ■ We conduct internal defect detection in materials and structures. ■ Certified personnel with SNT certification and ACCP certification from the association are available. ■ We have established an ASME department that complies with ASME standards. *We also conduct various other non-destructive tests! X-ray transmission testing / Maintenance inspection of power cables / X-ray exploration of concrete Ultrasonic flaw detection testing and thickness measurement testing / Penetrant testing / Ultrasonic flaw detection testing of welded joints in construction steel frames / Ultrasonic flaw detection testing of rebar gas pressure welding joints Helium leak testing / Phased array inspection *For more details, please refer to our catalog or feel free to contact us.

• Contract Inspection

Our company provides non-destructive testing technology services in the manufacturing stage, playing a role in ensuring safety and reliability. Phased array inspection utilizes ultrasonic flaw detection methods, eliminating the need for surface preparation such as paint removal or rust cleaning, and allows for evaluation after data collection! It also excels in workability compared to conventional ultrasonic devices! (*Using Olympus model [Olympus Omniscan-MX2]) 【Features】 ◆ Reduction of inspection time 　⇒ Linear scanning allows for inspection of a wide area at once without physically moving the probe. ◆ No surface preparation required for paint or rust removal 　⇒ Since it is an ultrasonic inspection, it can be conducted without altering the existing item. ◆ Clear reporting with images 　⇒ Equipped with a high-resolution large 10.4-inch touch screen, it also features high-speed data transfer capabilities. ◆ Quantitative evaluation of steel thickness reduction 　⇒ It can map the distribution of wall loss in pipes due to corrosion, wear, and erosion. 【Adoption Cases】 For more details, please contact us or download our catalog to view.

• Contract Inspection

"Valve Inspection and Radiation Transmission Testing using Gamma Rays" is a non-destructive testing method used for complex cast steel products and for investigating the corrosion levels inside boiler tubes. It involves detecting internal defects in materials and structures! We have established an ASME (American Society of Mechanical Engineers) room and comply with ASME standards. Certified personnel with SNT certification and ACCP certification from the association are available. We also provide consulting services in the non-destructive testing sector for ASME. *We are currently offering materials with examples of inspection photos! For more details, please download and view from the form below. 【Benefits】 ◆ Full coverage photography is possible in the irradiation room. ◆ Nationwide service is available. ♦ Our team includes skilled technicians, allowing for quick turnaround times. For more information, please contact us or download our catalog to learn more.

• Contract Inspection

"Bridge and Structure Inspection" involves data collection and on-site surveys for the deterioration diagnosis of existing civil engineering structures. In individual inspections of concrete bridges and structures, we conduct visual inspections of the current condition, ultrasonic measurements of crack depths in concrete, and radar wave investigations of rebar arrangements. In individual inspections of steel bridges and structures, we perform weld crack inspections (magnetic particle testing, eddy current testing). 【Features】 ■ Deterioration Diagnosis ■ On-site Surveys ■ Bridge and Structure Inspection ・ Concrete Bridges ・ Steel Bridges *For more details, please refer to the catalog or feel free to contact us.

• Contract Inspection

"Concrete X-ray inspection" is a method to confirm embedded objects such as rebar, electrical wires, and gas pipes inside concrete using X-ray images. In renovation work for buildings that are over ten years old and in seismic reinforcement work for structures, it is common to drill holes in concrete. This method can prevent damage to embedded objects like electrical wires and gas pipes inside the concrete. Just like taking an X-ray of the chest, X-ray images of concrete floors and walls are taken to check the condition inside the concrete using film. [Features] - X-ray inspection - Prevention of damage to embedded objects - Ability to confirm the interior of concrete - Verification possible with X-ray images *For more details, please refer to the catalog or feel free to contact us.

• Contract Inspection

"Valve inspection and radiation transmission testing using gamma rays" is a non-destructive testing method used for complex cast steel products and for investigating the corrosion levels inside boiler tubes. As part of our initiatives, we have established an ASME department that complies with ASME standards. We have certified personnel with SNT certification and ACCP certification from the association. We also provide consulting services for the non-destructive testing department in accordance with ASME. 【Features】 ■ Conducts internal flaw detection in materials and structures ■ Certified personnel with SNT certification and ACCP certification from the association ■ Established an ASME department ■ Complies with ASME standards ■ Capable of accommodating short delivery times whenever possible *For more details, please refer to our catalog or feel free to contact us.

• Contract Inspection

Magnetic particle testing is an extremely precise surface inspection method that can detect fine surface cracks that are not visible to the naked eye. Our company utilizes this flaw detection technology for manufacturing inspections and maintenance inspections. *For more details, please contact us or refer to the catalog.*

• X-ray inspection equipment

▼Bridge Inspection - Weld Crack Investigation Accessing the bridge girder using a high-altitude work vehicle to conduct non-destructive testing, ensuring that no small deterioration of the bridge is overlooked. ▼Bridge Inspection Using Magnetic Particle Testing For areas where cracks are observed in the coating through visual inspection, the condition of the cracks is examined using magnetic particle testing. ▼Visualization of Cracks Using magnetic force, surface cracks can be visualized, allowing for the reliable detection of defects. ▼Inspection Results The condition of the cracks detected during the bridge inspection is recorded in detail, and the state of the bridge is reported. *For more details, please contact us or refer to the catalog.*

• Visual Inspection Equipment

Ultrasonic Thickness Measurement Ultrasonic thickness measurement is a method of measuring the thickness of an object from one side using ultrasonic waves. It is typically measured with a specialized device called an ultrasonic thickness gauge. Ultrasonic waves are sent from the measurement surface of the object, and the time it takes for the reflection from the opposite side to return is measured and converted into thickness. A sensor called a transducer (probe) is used to transmit and receive the ultrasonic waves. ◎ Implementation of Ultrasonic Thickness Measurement Ultrasonic thickness measurement is conducted in accordance with the standard "Thickness Measurement Method Using Ultrasonic Pulse Reflection" (JIS Z 2355). Furthermore, the standard states that "the person conducting the measurement must possess the necessary qualifications or equivalent sufficient knowledge, skills, and experience." The "necessary qualifications" referred to here typically means individuals certified in ultrasonic testing by the Japan Non-Destructive Testing Association. *For more details, please contact us or refer to the catalog.

• Visual Inspection Equipment

<X-ray Transmission Testing> With high defect detection accuracy and the advantage of being able to retain X-ray film, this method has become the most commonly used testing method today. Using a portable X-ray device combined with film and sensitizing paper, it is possible to capture images of steel up to 80mm thick and concrete up to 400mm thick. <Concrete X-ray Exploration> There has been an increase in renovation work on buildings that are over a decade old, and during these renovations, it is common to drill holes in the concrete using core drills. Inside the concrete, there are embedded items such as rebar, electrical wires, and gas pipes. By exploring the interior of the concrete with X-rays in advance, it is possible to prevent damage to these embedded items. The X-ray exploration method involves taking X-ray images of concrete floors and walls, similar to how we take chest X-rays, allowing us to check the condition inside the concrete using film. <γ-ray Transmission Testing> Gamma rays are used for investigating the corrosion levels inside complexly shaped cast steel products and boiler tubes. Our company has a wealth of experience in handling various notifications to government agencies and conducting on-site inspections using dedicated irradiation rooms. *For more details, please contact us or refer to our catalog.*

• X-ray inspection equipment

We will investigate the deterioration of concrete structures (such as bridges and buildings), which are social capital, and create data for repair plans. When implementing seismic reinforcement work on structures like bridge piers, we will conduct preliminary rebar surveys to ensure the smooth progress of the construction. 【Individual Surveys】 - Measurement of crack depth using ultrasound (bridge piers) - Data on crack depth using ultrasound - Investigation of internal defects in concrete using X-ray imaging (deck slabs of elevated bridges) - Measurement of concrete thickness using ultrasound - Investigation of internal defects in concrete using ultrasound - Measurement of sound velocity in concrete using ultrasound, etc. *For details, please contact us or refer to the catalog.

• others
• X-ray inspection equipment

Leak testing is one of the key non-destructive testing methods that is considered important not only in Japan but also in various countries around the world, including Europe and the United States. As a result, it is widely implemented in various fields such as chemical plants, nuclear power, and space development. Consequently, engineers need to have sufficient knowledge and experience regarding the characteristics of vacuum and leakage. Helium leak testing includes various methods tailored to specific purposes, such as quantifying the amount of leakage by pressurizing the product with vacuum or helium gas, and identifying leak points from invisible cracks. To meet the diverse needs of a wide range of customers, we are committed to ongoing engineer training. Additionally, for specialized products, we also conduct mock-up tests to validate the effectiveness of the testing methods. *For more details, please contact us or refer to our catalog.*

• Other processing machines

Through our non-destructive testing services, we aim to contribute to the development of society by providing non-destructive testing technology services at the manufacturing stage of structures such as industrial equipment, power facilities, gas equipment, pressure vessels, pipelines, bridges, buildings, and civil engineering. We also offer non-destructive testing consulting services not only domestically but also for the United States and Europe. When exporting industrial products to the United States and Europe, it may be necessary to have qualifications in non-destructive testing technology from those regions. Our company has ASNT Level 3 personnel who provide consulting services.

• Contract manufacturing