エヌ・ケイ・システム List of Products and Services

This product automatically identifies the coordinate position by aiming at the target location and inputting it. The obtained data is visualized in a map, allowing for accurate and objective sharing of deterioration information. *For more details, please refer to the PDF document or feel free to contact us.*

• Testing Equipment and Devices

We will measure concrete structures using both sound and ultrasonic methods. The collected data will be measured by AI. By standardizing the criteria for judgment, which have previously been influenced by the senses and experience of the measurers, we can achieve more accurate data accumulation without judgment errors. *For more details, please refer to the PDF document or feel free to contact us.*

• Testing Equipment and Devices

The "Hollow Shaft Coaxiality Ultrasonic Measurement Device" is a device that uses ultrasonic waves to measure the wall thickness of the inner and outer surfaces of a shaft, calculating and determining the coaxiality based on the difference in thickness. By rotating the inspection material set on the measuring jig, the wall thickness around the entire circumference is measured to assess coaxiality. The measurement points can be made multi-channel, allowing for simultaneous inspection of multiple locations. If the type of measurement material changes, it is possible to accommodate this by exchanging the jig. The inspection results are saved to a PC within the data processing unit (usually in CSV format). The measurement materials include hollow shafts and cylindrical pipes, such as castings, sintered materials, camshafts, and resin pipes.

• Flaw detection testing

The "Piston Pin Lip Area Eddy Current Testing Device" is a device that detects surface open defects in the lip area and pin hole area of the piston using the eddy current testing method. Eddy current inspection performs OK/NG judgment based on the threshold specified by your company, and the inspection data is automatically saved in the computer (file extension: CSV). If the inspection result is OK, the piston is discharged onto the OK work conveyor, and if it is NG, the NG work conveyor extends out, and the workpiece is placed there. 【Inspection Specifications】 ■ Targets defects of 0.2 to 0.3 mm or larger ■ The inspection of the lip area involves rotating the piston while scanning the eddy current probe to match the shape of the lip area ■ The inspection of the pin hole area involves rotating a shaft with a mounted probe to move the probe and inspect the entire surface of the pin hole ■ The inspection results are displayed on the inspection monitor in a map format, and pass/fail judgment is made based on the settings *For more details, please refer to the PDF document or feel free to contact us.

• Flaw detection testing

We would like to introduce a case study of the inspection equipment we manufactured, the "Eddy Current Testing Device for Brake Disc Rotors." This device detects surface defects (cracks) that occur on the pad surface of brake disc rotors (high carbon cast iron), which are critical safety components in automobiles, using eddy current testing. By rotating the workpiece and moving the eddy current sensor, a comprehensive inspection of the pad surface is conducted. 【Features】 ■ The inspection method can be applied to various products. *For more details, please refer to the related links or feel free to contact us.

• Flaw detection testing
• Other inspection equipment and devices

We would like to introduce a case study of our inspection equipment, the "Piston Pin Eddy Current Testing Device." By rapidly rotating a sensor that generates eddy currents and passing the product through it, we can perform crack inspections on the entire circumference of the product in a short time. Please feel free to consult us when you need assistance. 【Features】 ■ High-speed rotation of the sensor that generates eddy currents ■ Quick execution of crack inspections on the entire circumference of the product *For more details, please refer to the related links or feel free to contact us.

• Flaw detection testing
• Other inspection equipment and devices

We would like to introduce a case study of the inspection equipment "Eddy Current Inspection System" that we manufactured. It is capable of detecting surface cracks that occur in products and conducting inspections in a non-destructive and non-contact manner. Depending on the specifications of the product inspection, it is possible to carry out the entire process from delivery, inspection, to discharge completely inline. 【Features】 ■ Detects surface cracks that occur in products ■ Capable of conducting inspections in a non-destructive and non-contact manner *For more details, please refer to the related links or feel free to contact us.

• Flaw detection testing
• Other inspection equipment and devices

We would like to introduce a case study of the inspection equipment "Piston Ultrasonic Testing Device" that we manufactured. Using ultrasonic testing, we inspect the unbonded wear rings (cast iron) embedded in aluminum pistons, as well as internal defects in the pistons and eccentricity in the oil gallery. By utilizing multi-channel ultrasonic technology and rotating the product, it is possible to measure multiple inspection points simultaneously in one rotation. 【Features】 ■ Simultaneous measurement of multiple inspection points in one rotation ■ Inspection methods can be applied to various products *For more details, please refer to the related links or feel free to contact us.

• Flaw detection testing
• Other inspection equipment and devices

We would like to introduce a case study of the inspection equipment we manufactured, the "Forged Cross Roll Ultrasonic Flaw Detector." This device performs ultrasonic testing to detect cracks that occur inside the shaft of the forged cross roll. By using simple jigs and commercially available portable flaw detectors, it is also possible to establish a simplified inspection system. 【Features】 ■ Full circumferential inspection is possible due to work rotation. *For more details, please refer to the related links or feel free to contact us.

• Flaw detection testing
• Other inspection equipment and devices

We would like to introduce a case study of the inspection equipment "Copper Rod Ultrasonic Inspection Device" that we manufactured. Using an ultrasonic probe fixed to a jig, we perform water immersion vertical flaw detection from the circumferential direction of the workpiece to detect internal defects. After setting the target workpiece, the system automatically transports and inspects the workpieces continuously, allowing for sorting into OK and NG categories based on the inspection results. 【Features】 ■ The inspection results are displayed on the monitor of the control and operation panel. ■ The data of the inspection results is saved on a data processing PC, allowing for verification after inspection. *For more details, please refer to the related links or feel free to contact us.

• Flaw detection testing

We would like to introduce a case study of the inspection equipment "Ultrasonic and Tapping Combined Inspection Device" that we manufactured. In product inspection, we use tapping to distinguish cracks and ultrasonic testing to check for internal defects, all within a single system. Products that pass both inspection results are stamped for traceability management. 【Target Inspections】 ■ Internal Defects ■ Surface Cracks ■ Material Identification ■ Thickness Measurement *For more details, please refer to the related links or feel free to contact us.

• Defect Inspection Equipment

We would like to introduce a case study of the inspection equipment "Multi-Channel Ultrasonic Inspection Device" that we manufactured. Using ultrasonic technology, we measure the spheroidization rate of graphite and detect internal defects in products such as steering knuckles (ductile cast iron FCD), which are one of the most critical safety components in automobiles. By utilizing multi-channel ultrasonic technology for internal defect detection, it is possible to measure multiple inspection points simultaneously. 【Features】 ■ Conducts spheroidization rate measurement and internal defect detection using ultrasonic technology ■ Capable of measuring multiple inspection points simultaneously ■ Inspection can be performed on various products *For more details, please refer to the related links or feel free to contact us.

• Defect Inspection Equipment

We would like to introduce a case study of the inspection equipment "Ultrasonic Scanning Inspection Device" that we manufactured. By operating the ultrasonic probe, it is possible to conduct ultrasonic inspections over an area rather than at specific points. The device can be constructed to match the size of the inspection material. Please feel free to consult us when you need assistance. It can be used for various inspections, including internal defects, thickness measurement, weld joints, and internal/joint inspections of spatter materials and target materials. 【Inspection Methods】 ■ Type that conducts inspections in a water tank ■ Type that conducts inspections while spraying water *For more details, please refer to the related links or feel free to contact us.

• Flaw detection testing

We would like to introduce a case study of the inspection equipment "Sound Inspection Device" that we manufactured. By analyzing the sound produced when striking the inspection material, it can be applied to various inspections, such as distinguishing cracks and foreign materials. Using this device allows for quantitative inspections that are not dependent on the individual skills of the operator, and it also enables the storage of inspection results. It can be used for castings and forgings, various metals, non-metal products, and structures. 【Available Devices】 ■ Portable type for use in the field ■ Inline type for use on the production line *For more details, please refer to the PDF document or feel free to contact us.

• Analytical Equipment and Devices

We would like to introduce a case study of the delivery of our inspection equipment, the "Graphite Spheroidization Rate Determination Device." This device uses ultrasonic technology to non-destructively measure the sound velocity of ductile cast iron products (FCD, FCV) and calculate the spheroidization rate for evaluation. Unlike widely used sound velocity meters, this device allows for measurements on actual products and enables the management of spheroidization rates by measuring test pieces in front of the furnace. 【Features】 ■ No need for polishing the surface and checking under a microscope ■ Ability to manage spheroidization rates by measuring test pieces in front of the furnace *For more details, please refer to the related links or feel free to contact us.

• Other measurement, recording and measuring instruments

The "Piston Ultrasonic Inspection Device <Manual>" is a device used to check for the presence or absence of wear ring delamination in pistons. By rotating the piston, it is possible to inspect the measurement points all around. The operator sets the piston on the inspection table and presses the start button to begin the inspection, after which the operator removes the workpiece once the inspection is complete. 【Device Specifications (Partial)】 ■ Equipment Size (Mechanical Part): 750 × Height 2230 × Depth 1100 mm (including transport gantry) ■ Test Material - Finished piston (with wear ring cast in) - Assumed: φ70–100 mm - Material: Cast aluminum *For more details, please refer to the PDF document or feel free to contact us.

• Flaw detection testing

The "Piston Ultrasonic Inspection Device <Automatic>" is an automatic device that grips the finished pistons transported from the previous process at the rear of the conveyor, installs them on the inspection table, and automatically inspects them before discharging them to the next process. The device is designed to change fixtures according to the type of piston being inspected and checks for the presence or absence of wear ring peeling. The conveying mechanism is driven by servo motors on the X-axis and Z-axis (left-right, up-down), and the Y-axis (front-back), while the workpiece chuck is air-driven. 【Device Specifications (Partial)】 ■ Equipment Size (Mechanism): Width 2000 × Height 2330 × Depth 1300 mm (including the conveyor gantry) ■ Test Materials - Finished pistons (with wear rings cast in) - Expected: φ70–100 mm - Material: Cast aluminum *For more details, please refer to the PDF document or feel free to contact us.

• Flaw detection testing

The "Ultrasonic Testing Device for BP Materials" is a device that automatically detects internal defects in BP materials. It automatically inspects the workpiece set by a robot, sends a completion signal to the robot, and the robot then discharges the workpiece. The inspection is carried out automatically according to a pre-set program. Additionally, this device has 5 testing channels. 【Inspection Specifications】 ■ Five ultrasonic probes are evenly arranged, and by moving in the X-Y axis direction, the entire inspection surface is tested. ■ The inspection is conducted while spraying water from the holder of the ultrasonic probes, allowing inspection without submerging the workpiece. ■ The inspection results display the scanned area on the inspection monitor and determine pass or fail based on the criteria. *For more details, please refer to the PDF document or feel free to contact us.

• Flaw detection testing

The "ultrasonic scanning device" is an automatic ultrasonic flaw detection device that detects defects within the target work using full immersion and records data and processes images in real time. The inspection processes ultrasonic signals based on positional information, displaying the location and shape of defects on the monitor in plan and cross-sectional views. It can be used for various inspections, including internal defects, wall thickness measurement, weld joints, and internal and joint inspections of spatter materials and target materials. The inspection result images can be processed with color displays according to the evaluation method. Please feel free to contact us when you need assistance. 【Device Configuration】 ■ Ultrasonic Flaw Detection Section: Composed of an ultrasonic flaw detector and a data processing computer, allowing for the setting of detection conditions, saving results, and reading them. ■ Mechanism Section - X-axis, Y-axis: Servo, automatic scanning - Z-axis: Manual *For more details, please refer to the PDF document or feel free to contact us.

• Flaw detection testing

The "Thrust Plate Measurement Device" is a device that measures the thickness of a thrust plate using a laser. When the operator sets the workpiece in the fixture and presses the measurement start button, a pair of laser sensors set above and below measures the thickness of the workpiece. The workpiece rises and rotates through an ascending mechanism and a rotating mechanism, measuring the thickness at a total of three points, and after the inspection is complete, the measurement results are displayed on the monitor (average value of the three measurements). 【Main Device Specifications (Partial)】 ■ Equipment Size: Width 500 × Height 1979 × Depth 430 mm (Weight: 0.2t) ■ Workpiece Measurement Accuracy: ±1.0μm ■ Power Supply: AC200V 3-phase (Power: 2.5kVA) *For more details, please refer to the PDF document or feel free to contact us.

• Other measurement, recording and measuring instruments

The "Automatic Thickness Measurement Device <Portable Vacuum Type>" is a device that automatically measures the thickness of stainless steel plates using ultrasound. The measurement accuracy for thickness measurement is 0.01mm. (This may vary depending on the condition of the inspection material.) It is moved using a cart, and by utilizing an eye bolt, the measuring part is placed on top of the steel plate. When the measurement start button is pressed, water is sprayed from above, and thickness measurement is performed in the X-axis direction using an ultrasonic probe and a robotic cylinder. 【Features】 ■ The ultrasonic probe moves in one direction to measure the thickness of the area within its range. ■ Since the inspection is conducted while spraying water from the ultrasonic probe, there is no need to submerge the inspection material in water. ■ The water for inspection is pre-filled in a water tank. *For more details, please refer to the PDF document or feel free to contact us.

• Other measurement, recording and measuring instruments

The "Plate Joint Inspection Scanner" is an automatic ultrasonic testing device specifically designed for inspecting the welds of aluminum and titanium plates through full immersion testing, with real-time data recording and image processing. It consists of an ultrasonic testing section and a mechanical section. The ultrasonic testing section allows for the setting of inspection conditions, as well as saving and reading results. Additionally, the mechanical section is composed of the drive axes, X-axis and Z-axis, both of which can be scanned automatically. [Inspection] - Image processing of ultrasonic signals based on positional information - Display of defect location and shape on the monitor in plan and cross-sectional views - Inspection result images can be color processed according to evaluation methods - Monitor display images can be hard copied and printed *For more details, please refer to the PDF document or feel free to contact us.

• Flaw detection testing
• Other inspection equipment and devices

The "Pulley Ultrasonic Testing Device" is a machine that automatically detects defects in the pulley friction welding area. It automatically inspects the workpiece set by the operator and determines whether it is OK or NG. A heater and a concentration meter for concentration management are installed in the water tank. Additionally, the operator is responsible for loading the workpiece, starting the inspection, and discharging it, while the inspection is carried out automatically according to a pre-set program. 【Inspection Specifications】 ■ Detects welding defects of φ1.2mm or larger ■ Inspects the entire welding surface by rotating the workpiece and moving the ultrasonic probe mechanism *For more details, please refer to the PDF document or feel free to contact us.

• Defect Inspection Equipment
• Other inspection equipment and devices

The "Bush Material Ultrasonic Testing Device" is an automatic ultrasonic testing device that detects delamination defects in the inner sintered material of bushings. It consists of an ultrasonic testing section, a mechanical section, and an electrical section. The ultrasonic testing section is composed of an ultrasonic tester and a data processing computer, allowing for the setting of testing conditions, as well as saving and reading results. The drive axis is configured with two axes: the X-axis (left and right) and the R-axis (workpiece rotation), both of which are servo-driven for scanning. 【Inspection Specifications】 - Detects delamination of sintered material on the inner surface of cylinders - Fills the holder with water, which has an ultrasonic probe attached, to transmit ultrasound through the test material - Allows inspection without submerging the workpiece - Conducts comprehensive inspection by rotating the workpiece and moving the ultrasonic probe mechanism in the axial direction *For more details, please refer to the PDF document or feel free to contact us.

• Flaw detection testing

The "Cylinder Block Bore Ultrasonic Testing Device" is an automatic ultrasonic testing device used to inspect the cylinder block bore (the delamination of the copper and steel joint). It consists of an ultrasonic testing section, a mechanism section, and a water drainage section. Air blowing is performed at the water drainage area, with the air blowing directed from three angles: upward, sideways, and downward. The ultrasonic testing section is composed of an ultrasonic tester and a data processing computer, allowing for the setting of testing conditions, saving results, and reading them. 【Inspection Specifications】 ■ Ultrasonic testing is conducted sequentially within each bore. ■ The ultrasonic beam is reflected at a 90° angle using a mirror mechanism attached to the tip of the probe to inspect the inner surface of the bore. ■ The ultrasonic probe mechanism is rotated and moved up and down to inspect the front surface of the inner side of the bore. *For more details, please refer to the PDF document or feel free to contact us.

• Flaw detection testing

The "Disc Brake Inspection Machine" is a device that automatically measures the inner diameter, runout, foreign object intrusion, and natural frequency of disc brakes. By rotating the inspection material, the entire circumference at the measurement point is inspected. It automatically inspects the workpieces taken from the previous process and discharges them to the next process after the inspection is completed. 【Inspection Specifications】 ■ Sound Inspection ■ Laser Runout Measurement ■ Inner Diameter Measurement ■ Foreign Object Detection *For more details, please refer to the PDF document or feel free to contact us.

• Defect Inspection Equipment