マルイ List of Products and Services

This is a device that can sieve a large amount of concrete aggregates and other materials at once. The amplitude is in the horizontal direction. Additionally, it is movable with casters, allowing for flexible placement and effective use of testing space. 【Features】 ● Can accommodate approximately 20 kg in a wooden frame sieve ● Allows for quick sieving ● Movable with casters

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• Testing Equipment and Devices

This is a device for measuring the propagation time of ultrasonic waves, ideal for diagnosing the deterioration of concrete structures and for quality inspection and deterioration diagnosis of ceramic materials. It features a one-touch measurement method without adjustment knobs (just turn the switch ON), ensuring no individual differences in measurements. Additionally, the LED display makes it easy to check measurement values even in the dark, and its carrying case design makes it easy to transport.

• Testing Equipment and Devices
• Other inspection equipment and devices

This device is a revolutionary testing machine that can conduct "unconfined compressive tests on soil" on three specimens at once. Since it has an independent loading system, tests can be started sequentially from the prepared specimens, allowing for efficient testing. The loading is auto-range capable, enabling tests across a wide range of loads without the need to change load cells, and with a maximum capacity of 50 kN, it can also test cement-treated soil and cement milk. Control is fully automated via computer, which also automatically adjusts the displacement speed according to the height of the specimen. During the test, the stress-strain curve can be displayed in real-time, and data is processed and reported in accordance with the standards of the Geotechnical Society. 【Features】 ● Capable of high-load testing for cement-treated soil and similar materials ● PC control automatically adjusts displacement speed according to specimen height! ● Data recording and report generation are all taken care of!

• Testing Equipment and Devices
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The definitive version of the specimen end face finishing machine, "Triple Haiken Matsuru Tsuru Tsuru," has further evolved! The previous features remain intact, including: - Simultaneous grinding of three specimens, cutting manpower, working time, and installation space by one-third - One-touch specimen fixation with lever opening and closing - Various bases that accommodate specimens of different sizes - Thorough quality control with flatness measurement inspection conducted during test grinding at the time of product shipment Additionally, we have added: - Sludge countermeasure function (reducing sludge adhesion generated during grinding with a cleaning nozzle) - Cutting amount reference plate (replacing grinding time with an approximate cutting amount) - Water supply filter (preventing clogging when using industrial water) These improvements make it even easier to use and further enhance the efficiency of testing operations!

• Testing Equipment and Devices
• Other processing machines
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This is a device that automatically compacts soil that has passed through a 37.5mm sieve as specified in JIS A 1210, in order to determine the "dry density - moisture content curve," "maximum dry density," and "optimum moisture content." With its unique mold support movement, there is no residual compaction, and the powerful arm mechanism of the W pulley ensures consistent results. Additionally, the interlocking of the dropping mechanism and the mold support enables high-speed compaction, reducing testing time. 【Features】 ● No residual compaction due to the unique movement of the mold support ● Capable of compacting φ100mm and φ150mm without changing the pulley (lever switch) ● Consistent results achieved with the powerful arm mechanism of the W pulley ● High-speed compaction realized with the interlocking dropping mechanism and mold support, shortening testing time ● Safety considerations with a cover installed over the drive unit

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This is a heat deformation and weather resistance testing device for building boards. By combining irradiation and sprinkling, it is possible to investigate the effects of sunlight and rain. Since it is a closed type using insulation material, highly accurate temperature control testing is possible. 【Features】 ● The infrared lamps are controlled by a unique zone division, eliminating irradiation and temperature unevenness based on the position of the test specimen. ● Infrared irradiation can be controlled based on the surface temperature of the test specimen. ● Settings for conditions, test duration, temperature, etc., can be easily operated via a touch panel. ● Equipped with a self-diagnosis function, providing peace of mind in case of any troubles. ● Sprinkling temperature can also be adjusted (optional).

• Environmental Test Equipment
• Testing Equipment and Devices
• Weather resistance test

This is a device that can perform thermal deformation tests on full-scale architectural panels. The infrared lamps used for irradiation are controlled by a unique zone division, ensuring there are no irradiation inconsistencies based on the position of the test specimen. 【Features】 ● By combining infrared irradiation with a sprinkling function, it is possible to investigate deformations caused by sunlight and rain. ● The infrared lamps are controlled by a unique zone division, eliminating irradiation inconsistencies based on the position of the test specimen. ● The sprinkling device uses a natural drop method, ensuring there are no inconsistencies in the sprinkling. ● Settings for conditions, test duration, temperature, etc., can be easily operated via a touch panel. ● Equipped with a self-diagnosis function, providing peace of mind in case of any troubles.

• Environmental Test Equipment
• Testing Equipment and Devices
• Weather resistance test

Measures the in-plane shear strength and in-plane shear stiffness of structural frame components such as building panels and wooden structures. Equipped with a mechanism for conducting repeated tests and failure tests during positive and negative deformation angles under automatic control. Data recording and analysis are possible through computer control. 【Features】 ● Precise stroke control is possible with a servo motor system. ● The height of the actuator can be adjusted with a manual winch, reducing the effort required for specimen setup. ● The specimen setup is supported by a chain block at the top of the frame. ● High-rigidity fixtures suppress out-of-plane deformation of the specimen.

• Testing Equipment and Devices
• Strength Testing Equipment
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This is a device for measuring the bending strength of construction panels and similar materials. It uses an electric-hydraulic servo system, allowing for repeated bending tests at a fast cycle. 【Features】 ● Conducts repeated bending fatigue tests at a fast cycle using an electric-hydraulic servo system ● Can also perform static tests ● Computer-controlled, enabling data recording and processing ● Complies with JIS A 1408 / JIS A 1414 standards

• Testing Equipment and Devices
• Strength Testing Equipment
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This is a device for measuring the bending strength of architectural panels and similar materials. Since there is no frame at the bottom of the testing machine, test specimens can be set up from the front using a forklift, reducing the preparation time for testing. The device allows for load control, displacement control, and repetitive control testing via computer. 【Features】 ● Load control, displacement control, and repetitive control can be performed from a computer ● The unique measurement structure eliminates the frame at the bottom of the testing machine, allowing test specimens to be set from the front using a forklift ● The spacing between supports is approximately 3800 mm, allowing for movement of the load axis ● Capable of conducting panel bending tests, truss tests, beam joint tests, and more ● Complies with JIS A 1414 standards ● Supports various sizes of test specimens: ・W 3000 × D 2000 × H 250 mm (panel test) ・W 3640 × D 100 × H 1300 mm (truss test) ・W 3000 × D 80 × H 320 mm (beam joint test) ・W 2000 mm (cantilever beam joint test)

• Testing Equipment and Devices
• Strength Testing Equipment

This is a device for testing the bending strength of precast products and similar items. It has a wide spacing between the pressure plates, allowing for bending tests of secondary products such as box culverts. In load measurement, it detects the directly applied load by disconnecting the hydraulic system and displays it electrically on a measuring scale, enabling the acquisition of high-precision test data. 【Features】 ● Load measurement is a high-precision type that detects only the actual load by disconnecting the hydraulic system and displays it electrically. ● The effective spacing between the pressure plates is wide, allowing for the setup of taller test specimens. ● The loading axis is movable. ● Compliant with JIS A 5371 / JIS A 5372 / JIS A 5373 standards.

• Testing Equipment and Devices
• Strength Testing Equipment
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This device is designed with a 4-cell configuration, accommodating a wide range of specimen widths from φ50 to 75 mm, and allows for independent loading of each cell, enabling test settings and loading to start for each specimen. It efficiently handles a wide variety of triaxial tests. To enhance data accuracy, the loading frame is designed with six columns to achieve zero deflection at the center, and displacement gauges are installed for each cell. Additionally, the outer cylinder of the triaxial cell is automatically raised (using an air cylinder), and the cell itself has been miniaturized to save labor and space. The control is manual (with automatic axial loading), making part replacement easy. 【Features】 ● Wide range of applicable specimen sizes: φ50×100 mm / φ60×120 mm / φ75×150 mm ● Each cell has independent loading, allowing loading to start for each specimen and enabling adjustable test settings ● The loading frame is a six-column design, eliminating deflection at the center and ensuring high data accuracy ● Displacement gauges are installed for each cell, allowing for detailed data collection ● The outer cylinder of the triaxial cell rises automatically, improving the workability of test preparation ● Control other than axial loading is manual, reducing costs for part replacement and other tasks.

• Testing Equipment and Devices
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This is a testing room for conducting curing and durability tests of various specimens such as concrete and building materials under controlled temperature and humidity conditions. It can be easily operated via a touch panel, and the use of a capacitive humidity sensor ensures excellent humidity management accuracy. 【Features】 ● Capable of handling cold conditions with negative temperatures ● If securing space for opening doors is difficult, it can be changed to a sliding door type ● Flexible customization of size, shape, etc., according to customer requests ● Significantly stabilizes the wind speed distribution and temperature distribution within the chamber ● The "Sky Air Cycle System" can also be added for further stabilization.

• Thermostatic chamber
• Testing Equipment and Devices
• Environmental Test Equipment

This is a testing device that maintains a constant temperature, humidity, and CO₂ concentration in the chamber to promote the carbonation of concrete specimens. It features a structure that prevents airflow bias, ensuring a stable testing environment at any location within the testing chamber. Additionally, it minimizes CO₂ gas consumption. 【Features】 ● Achieves stable temperature, humidity, and CO2 distribution at any position within the testing chamber ● The door is designed with a double special packing to prevent CO2 leakage and features a safety automatic locking mechanism ● The interior of the chamber is made entirely of stainless steel, eliminating corrosion issues

• Thermostatic chamber
• Environmental Test Equipment
• Testing Equipment and Devices

This is a testing device that maintains a constant temperature, humidity, and CO₂ concentration in the chamber to promote the carbonation of concrete specimens. It has a structure that prevents airflow bias, ensuring a stable testing environment at any location within the testing chamber. Additionally, it minimizes the consumption of CO₂ gas.

• Testing Equipment and Devices
• Thermostatic chamber
• Environmental Test Equipment

The "High Multi" is a groundbreaking triaxial testing machine that can test four specimens simultaneously, achieving four times the testing efficiency compared to conventional single-series systems. It can reduce not only testing time but also running costs to one-fourth. Additionally, its compact design, with four interconnected cells, minimizes the installation area of the equipment, allowing for effective use of laboratory space. The operation can be fully automated from a computer, controlling the entire process of the soil triaxial compression test, including "supply of side fluid, application of back pressure and cell pressure, consolidation, and axial compression." This enables unattended testing at night, significantly improving operational efficiency. Furthermore, it eliminates individual errors in test results, enhancing the reliability of the data. 【Features】 ● Standardized operating procedures make it easy to handle ● Unattended testing is possible from the consolidation process to the end of axial compression ● Multi-cell loading can conduct compression tests in the same location as consolidation ● Nighttime testing processes can be conducted unattended, reducing testing time and costs ● Can be operated by non-experts, making it rational and accessible for various testers

• Testing Equipment and Devices
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The "Triple High-Precision Polisher" is a revolutionary device that can automatically polish the end faces of concrete, rocks, and other test specimens simultaneously with three units. Compared to traditional single-unit polishers, it reduces manpower, working time, and installation space by one-third, supporting the efficiency of your testing operations. Furthermore, it features a user-friendly design with one-touch specimen fixation via lever opening and closing, a simple control panel, and various bases that accommodate different specimen sizes. Additionally, we conduct flatness measurement inspections through test polishing at the time of product shipment, ensuring thorough quality control. 【Features】 ● Capping finish is clearly visible ● Safe and quick operation ● Easy specimen fixation with one-touch lever opening and closing ● Comes with an end face inspection sheet for assured product quality

• Testing Equipment and Devices
• Other processing machines
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Marui's "Hiaktis" is a fully automatic concrete compression testing machine. In conventional Amstler-type testing machines, the operation of two hydraulic valves relied on the tester's experience, but "Hiaktis" conducts the entire test automatically until the specimen is destroyed, eliminating individual differences in test results. The operation method is simple; by selecting the "specimen size" and "predicted strength" on the touch panel, compression tests can be easily performed. Additionally, it features a "blackboard display mode" convenient for capturing test conditions, as well as safety measures (such as a box-type high-rigidity design, a shatterproof transparent cover, and explosion prevention functions), making it a compression testing machine that prioritizes reliability and ease of use. 【Features】 ○ Compact design that does not require a specific installation location ○ High-rigidity frame and comprehensive safety measures, including shatterproof covers ○ Convenient display mode switching for capturing test conditions ○ Intuitive and easy operation via touch panel ○ A variety of options available *For details about options and other inquiries, please contact us or visit the product introduction page on our website.

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• Strength Testing Equipment
• Testing Equipment and Devices

The "Simple Support Strength Measuring Device Caspol" is a tripod-type measuring instrument that can evaluate the support strength characteristics of the ground in real-time. It features simple and easy operation, minimizing individual errors, and does not require reaction force, making it applicable in narrow spaces and mountainous areas. The measurement principle involves dropping a rammer equipped with an accelerometer onto the ground, and calculating the strength constants necessary for support strength calculations of foundations and structures from the maximum impact acceleration obtained from the collision. This single device can measure K30, qc, CBR, c, and φ (converted values from impact acceleration). 【Features】 ● No reaction force is needed for loading, allowing for low-cost measurement of various parameters. ● Usable in sites where heavy machinery cannot enter, improving construction management quality. ● Measurement is quick and does not take much time. ● Compact and lightweight, easy to operate, and suitable for any tester. ● Battery-powered, enabling field measurements without worrying about power supply. ● NETIS registered product: NO.KK-980055-V ● Can calculate the "allowable bearing capacity of the ground" using measurement constants. (→ The calculation method is explained on the Marui website: http://www.marui-group.co.jp/support/caspfol.html)

• Testing Equipment and Devices
• Other measurement, recording and measuring instruments
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W-Checker is a unit water measurement air meter that can accurately measure the unit water content of fresh concrete. It achieves the following three points through a high-precision digital air meter and scale: ● "Simple" - Anyone can easily measure without individual differences. ● "Quick" - Measurement results can be confirmed in a short time of within 5 minutes. ● "High Precision" - With high accuracy of ±5kg/m3. 【Features】 ● Water injection method that eliminates the need for leveling work. ● Uses a high-precision digital air meter (minimum reading value of 0.01%). ● The initial pressure point of the air meter can be arbitrarily determined within 95 to 120 kPa. ● Calibration of the measurement unit is possible. ● Both mass measurement unit and air volume measurement unit are traceable. ● No need to correct measurement lines, conversion formulas, or correction formulas. ● Compatible with high-strength and high-flow concrete. ● Equipped with a mini printer as standard, allowing for printing of measurement results on-site. ● Complies with JIS A 1116 / JIS A 1128 / JSCE-F 513 standards. ● Registered product in the Ministry of Land, Infrastructure, Transport and Tourism's New Technology Information System "NETIS" (Registration Number KK-050023-V).

• Testing Equipment and Devices
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Conventional equipment for extracting groundwater includes bailers and submersible pumps; however, due to the structure of these devices, they cannot extract water from a specific depth without disturbance. Marui's "Continuous Groundwater Sampling Device" allows for the extraction of groundwater in an undisturbed state at every 1-meter depth, making it a groundbreaking product that enables a three-dimensional understanding of contamination concentration distribution. The sampling process involves quietly lowering a single inner pipe with a strainer to the designated position in the observation well, and once the groundwater stabilizes, an outer pipe is inserted around the outer side of the inner pipe. Finally, both the inner and outer pipes are pulled up together, and by separating the two sampling pipes, which are sealed with water at each depth, groundwater can be extracted in an undisturbed state. This is a patented product. 【Features】 ● Allows continuous sampling of groundwater every 1 meter in depth ● Enables extraction in an undisturbed state ● If multiple observation wells are available, it can provide a three-dimensional understanding of groundwater concentration distribution ● Accurately conducts everything from groundwater contamination surveys to purification strategy design and monitoring.

• Water quality testing
• Testing Equipment and Devices

The "MIT-803-3-03 model" is a vacuum freeze-drying experimental machine designed for research and development of small quantities of various products. It features a transparent acrylic door that allows for visual confirmation of the drying condition inside. The drying chamber is made of stainless steel for easy cleaning. The recorder comes standard with a paperless type, displaying the operating temperature on a color screen in real-time. 【Features】 - In the event of a malfunction, the "self-diagnosis function" guides you through the recovery process on the maintenance screen. - The cold trap defrosting time is short, enabling rapid continuous operation. - Operation: Full-color touch panel display. - Recorder: Paperless (USB output). For more details, please contact us or download the catalog.

• Other drying equipment

Marui Co., Ltd. develops and manufactures various types of dryers that can be used for drying food, pharmaceuticals, and more. In our "Comprehensive Catalog of Dryer Series," we introduce products such as hot air circulation dryers, low-temperature dehumidifying dryers, vacuum dryers, and freeze vacuum dryers. We design our equipment according to customer needs, ranging from large machines for plants to small machines for experimental and development purposes, so please feel free to consult us. [Example of Featured Products] ■ Hot Air Circulation Dryer (Cart Storage Type) "MIT-830-H" - The internal ceiling side blowout and suction grilles can be disassembled and cleaned with one touch. - Equipped with a large color touch panel display. - Easy to operate. ■ Freeze Vacuum Dryer "MIT-800-F" - Capable of freezing at temperatures between -20°C and -30°C and drying in a high vacuum freeze state. - No deformation or discoloration of materials due to heat. For more details, please contact us or download the catalog.

• Other drying equipment
• Vacuum Dryer
• Freeze Dryer

The "MIT-820-D type" is a drying device designed for the drying of materials that undergo deformation or transformation at low temperatures due to low melting points and heat. It consists of a circulation fan, a cooler, a heater section, and a special honeycomb structure dehumidifier, which circulates low-temperature, low-humidity air within the chamber for low-temperature drying. 【Equipment】 ■ Main dryer unit ■ Sirocco fan ■ Cooling unit ■ Refrigeration unit (air-cooled) ■ Fin-sealed heater ■ Dehumidifier (honeycomb rotor type) For more details, please contact us or download the catalog.

• Other drying equipment
• Food Factory Equipment