MJI List of Products and Services

In the "Minamata Convention on Mercury," the manufacture and import/export of "fluorescent lamps" will be prohibited by the end of 2027. To promote the switch to LED, it is necessary to select products that match the usage environment. The "LED Selection Chart" is a resource that allows you to understand the types of LEDs suitable for your usage environment and their overview by simply answering a few easy questions. 【Recommended for the following people】 ■ Those who want to confirm which LED is suitable for their company ■ Those who want to choose appropriate lighting while switching to LED ■ Those who do not have selection criteria for lighting within the company *The LED Selection Chart can be viewed by downloading the catalog.

• LED lighting

Our company conducts LED installation work for factories and offices. We provide a comprehensive service from selecting LEDs to proposing improvements in the work environment, considering brightness, color, and visibility based on installation positions, as well as the actual construction. Leveraging our know-how from manufacturing food containers in a clean room in our production department, we pay thorough attention to cleanliness, which has led to many inquiries, especially from food factory customers. 【Features】 ■ Thorough protection of equipment and conveyors to consider dust and dirt ■ Cleaning conducted after completion of construction ■ Wearing work clothes suitable for food factories ■ Selection of LEDs according to customer needs, including moisture-proof, dust-proof, insect-proof, and stainless steel options ■ Capable of accommodating changes in the number and position of lighting *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of replacement work for the aeration pipes at a wastewater treatment plant conducted at a food factory. The air piping and aeration pipes in the first and second aeration tanks of the wastewater treatment plant were experiencing cracks and breaks due to aging, resulting in insufficient air supply. We updated the piping and selected aeration pipes with enhanced capacity compared to the previous specifications. As a result of replacing seven pipes, we were able to secure a sufficient air supply. [Case Overview] ■ Company that performed the work: Food factory ■ Details of the work: Replacement of air piping and aeration pipes in the first and second aeration tanks of the wastewater treatment plant ■ Issues faced: Insufficient air supply due to cracks and breaks in the piping and failures of the aeration pipes caused by aging *For more details, please download the PDF or feel free to contact us.

• Piping Materials
• Machinery and equipment installation/dismantling/relocation

We would like to introduce a case of painting work carried out on self-generated power systems, frames, tanks, etc., installed in a food factory. Due to aging deterioration, there were issues such as paint cracking and peeling, and significant rust had developed, leading to the request for construction. Essentially, all equipment and facilities installed outdoors were painted. As a result of the work, the aesthetic appearance improved significantly, and it also contributed to the extended lifespan of the equipment and facilities. 【Case Overview】 ■ Company that performed the work: Food factory ■ Details of the work: Painting of self-generated power systems, frames, tanks, etc. ■ Issues faced: Paint cracking and peeling due to aging deterioration, with significant rust development. *For more details, please download the PDF or feel free to contact us.

• Painting Machine

Here is a case study of waterproof painting work conducted within a hospital. The background leading to the construction was that there was rainwater leakage occurring from the lower floors around the light well. Due to the deterioration of the building and the light well itself, caulking and surrounding waterproof painting were implemented, resulting in the elimination of the rainwater leakage. [Case Overview] ■ Company that performed the work: A certain hospital ■ Details of the construction: Caulking and waterproof painting around the light well ■ Issues faced: - Rainwater leakage from the lower floors around the light well - Deterioration of the building and the window itself *For more details, please download the PDF or feel free to contact us.

• Painting Machine

Here is an example of partial painting work done on the exterior walls of a food factory. We received a request to temporarily remove the company name on the factory's exterior wall. We mixed the paint to match the surrounding colors and completed the painting. Please contact us if you require painting services. 【Case Overview】 ■ Company that was worked on: Food factory ■ Details of the work: Partial painting of the factory's exterior wall ■ Concern: Request to temporarily remove the company name *For more details, please download the PDF or feel free to contact us.

• Painting Machine

We would like to introduce a case of waterproof coating work carried out on the rooftop of a certain hospital. The background leading to the construction was that the waterproofing function had completely deteriorated due to aging caused by wind, rain, temperature changes, and sunlight. We also performed waterproof coating as part of the repairs, and after the work was completed, the waterproofing function was restored. 【Case Overview】 ■ Company that performed the work: Certain Hospital ■ Details of the work: Waterproof coating on the rooftop entrance area ■ Issues faced: The waterproofing function had completely deteriorated due to aging caused by wind, rain, temperature changes, and sunlight. *For more details, please download the PDF or feel free to contact us.

• Painting Machine

We would like to introduce a case of replacing "approximately 800 pressurized ventilation fans" at a food factory. The pressurized ventilation fan near the area where steam is generated was malfunctioning. Unable to exhaust the steam, the environment became poor, and since it had been in use for quite some time, it was urgently replaced with a new one. After the installation, the new pressurized ventilation fan had a higher capacity and significantly improved steam exhaust compared to the previous one. The site environment was also improved. [Case Overview] ■ Issues - The pressurized ventilation fan was malfunctioning, resulting in an inability to exhaust steam, leading to a poor environment. ■ Results - Higher capacity and significantly improved steam exhaust compared to the previous model. - The site environment was further improved. *For more details, please download the PDF or feel free to contact us.

• Ventilation and Exhaust

We would like to introduce a case where we created a "special cart for mounting jigs" that allows for rotation and height adjustment for a food factory. Before implementation, the jigs weighed about 15 kg and were located at a height of approximately 1 meter, requiring manual replacement each time, which placed a significant burden on the workers. By using the introduced product, the burden during replacement has been eliminated, and tools and parts can now be moved to the replacement location simultaneously. Additionally, since the replacement height is the same, the time required for replacement has been reduced, significantly increasing efficiency. 【Case Overview】 ■ Challenges - The jigs weighed about 15 kg and were located at a height of approximately 1 meter. - Manual replacement each time placed a significant burden on the workers. ■ Results - The use of a dedicated jig cart eliminated the burden during replacement. *For more details, please download the PDF or feel free to contact us.

• Contract manufacturing
• stainless
• Trolley

We would like to introduce a case where we manufactured an "alcohol container" used for adding ingredients to a food factory. Before the introduction, workers were dipping both hands into alcohol using a stainless steel basin, which required bending over and dipping numerous times, placing a heavy burden on them. After the introduction, by placing the alcohol container close to the area where ingredients are added, the need to bend over for dipping was eliminated. Additionally, the burden on workers was reduced, work efficiency improved, and it contributed to enhancing the work environment. 【Case Overview】 ■ Issue - The burden on workers was significant due to the need to bend over and dip numerous times. ■ Result - By placing the alcohol container close to the area where ingredients are added, the need to bend over for dipping was eliminated. *For more details, please download the PDF or feel free to contact us.

• Stainless steel container
• Contract manufacturing

We would like to introduce a case where we manufactured "stainless steel fixing brackets" for securing the transfer between the belt conveyor and roller conveyor in a food factory's production line. Before implementation, each conveyor operated independently, and there were instances where the conveyor positions shifted during operation, leading to issues with the transfer. After implementation, we resolved the issues by connecting the frames of the belt conveyor and roller conveyor. We designed the brackets to be easily removable during cleaning. 【Case Overview】 ■Challenges - Each conveyor operated independently, and there were instances where the conveyor positions shifted during operation. - There were issues with the transfer. ■Results - Problems were resolved by connecting the frames of the belt conveyor and roller conveyor. *For more details, please download the PDF or feel free to contact us.

• stainless
• Contract manufacturing

We would like to introduce a case of manufacturing stainless steel crossing stairs at a food factory. Before the construction, the factory had to take a longer route to move around. This resulted in time loss and poor efficiency. After the construction, it became possible to move in a shorter time, improving efficiency. Additionally, the flow of movement was secured. 【Details of the construction】 ■ Crossing stairs were manufactured on the line to secure the flow of movement within the manufacturing area. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of steam piping racking conducted at a food factory. We relocated the steam piping and implemented steam piping racking to protect the piping and prevent accidents due to heat. This helped prevent piping damage and accidents in advance. Please feel free to contact us when you need our services. 【Details of the Construction】 ■Rewrapping of steam piping racking in the manufacturing area *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of steam piping racking conducted at a food factory. In this factory, there was damage to the steam piping racking due to interference from carts and other equipment. Rewrapping can prevent damage and also enhance aesthetics. Please feel free to contact us when you need our services. 【Details of the work】 ■ Rewrapping of steam piping racking in the manufacturing area *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of stainless steel walkway stairs manufactured at a food factory. Before the construction, the factory experienced time loss and inefficiency due to having to take a longer route for movement. After the construction, it became possible to move in a shorter time, improving efficiency. Additionally, the flow of movement was secured. 【Details of the construction】 ■ Walkway stairs were manufactured on the line to secure the flow of movement within the manufacturing area. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of manufacturing stainless steel fall prevention guards at a food factory. In this factory, there was a risk of items falling and contaminating the production line when workers went up and down. By installing fall prevention guards at the lower part of the handrails on both sides of the stairs, we were able to prevent contamination from falls. Adequate safety measures were also implemented. 【Details of the construction】 ■Manufactured stainless steel fall prevention guards on both sides of the existing staircase handrails. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of stainless steel partition board production at a food factory. In this factory, resin racks were purchased, but there were no partition boards to separate the products. Therefore, there was a request for a method that would allow for easy adjustment of the spacing and installation of the partition boards. After the installation, a structure was created that allows for easy movement and installation, enabling product separation. 【Details of the construction work】 ■Produced 20 partition boards for resin racks *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of stainless steel guard fabrication at a food factory. In this factory, there were instances where carts interfered with the steam piping during movement. Therefore, we manufactured a stainless steel guard to protect the steam piping of the manufacturing machinery. This allowed us to prevent damage to the steam piping in advance. Please feel free to contact us when you need our services. 【Details of the Work】 ■ Manufactured a stainless steel guard to protect the steam piping of the manufacturing machinery. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of stainless steel wagon table production at a food factory. In this factory, there were work tables on both sides of the conveyor, but a wagon table that extended over the work table was needed. We manufactured it to the customer's specifications from the perspective of work efficiency. There were no issues with machine placement, and work efficiency improved. 【Details of the work】 ■ Production of wagon tables for machines used in the manufacturing area *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of stainless steel handrail fabrication at a food factory. In this factory, there was approximately a 1-meter height from the ground to the platform, and no fall prevention measures were in place. By installing handrails, fall prevention measures were implemented, ensuring safety. Please feel free to contact us when you need our services. 【Details of the work】 ■ Fabrication of handrails for the receiving and dispatch platform *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of stainless steel handrail production at a food factory. In this factory, there were instances where workers had to climb onto the conveyor during cleaning, but there were no handrails, which posed safety risks. After the installation of the handrails, measures were taken to prevent falls. Workers can now hold onto the handrails while cleaning, which has also improved work efficiency. 【Details of the construction】 ■ Handrails were produced on both sides of the conveyor connected to the manufacturing machines within the manufacturing area. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of stainless steel handrail and ladder fabrication at a food factory. In this factory, there were instances where workers had to climb onto machines for cleaning and maintenance, but safety measures were not in place. After the fabrication, the installation of handrails prevented falls. Additionally, ladders were installed for climbing onto the machines, ensuring safety. 【Details of the construction】 ■ Fabrication of stainless steel handrails and ladders above the manufacturing machines in the production area. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce the construction achievements of MJI Corporation. We manufactured stainless steel tanks for use in a wastewater treatment facility at a food factory. Please feel free to contact us when you need our services. 【Details of the Construction】 ■Manufacturing of stainless steel tanks for use in a wastewater treatment facility *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of marking white lines in a bicycle parking area at a certain university. Before the construction, the existing lines in the parking spaces were almost completely faded, resulting in haphazard parking. By re-marking the lines, it became possible to park bicycles neatly. Additionally, the number of bicycles parked has increased compared to before. 【Details of the construction】 ■ Marking white lines in the bicycle parking area *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of parking lot line painting conducted at a certain university. The existing white lines for the parking spaces were almost faded. From a safety perspective, we re-striped the parking lot sections and marked the crosswalks where students pass. The lines became remarkably clear and prominent, ensuring the safety of both parking and pedestrian traffic. 【Details of the work】 ■ White line painting for the ground parking lot sections and crosswalks *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of internal cleaning of drainage pipes conducted at a food factory. This was carried out to suppress insect occurrence from within the piping and to prevent blockages caused by oil and residues inside the pipes. After the work was completed, we were able to eliminate insect occurrences and pipe blockages. 【Details of the Work】 ■ Internal cleaning of drainage pipes with a total length of over 150m ■ Regular cleaning once a year *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of floor cleaning conducted at a certain department store. The store was in a situation where black stains from dust and grease were prominent. Regular cleaning was being performed, but the dirt could not be completely removed, necessitating a concentrated reset cleaning. Since it had been over 10 years, it could not be completely cleaned, but we were able to reset it to a condition that satisfied the customer. 【Details of the work】 ■ Floor cleaning of all areas in the restaurant section across two floors *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of floor cleaning conducted at a food factory. Although cleaning was already being performed at the factory, the consistently high humidity levels led to an increase in mold growth. Therefore, our company carried out cleaning to the extent possible to remove dirt and black mold. While it is impossible to eliminate everything completely, we were able to achieve a sufficient reset cleaning. 【Details of the work】 ■ Removal cleaning of floor dirt and black mold *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of cleaning the exterior walls, platforms, and piping around the receiving and unloading area at a food factory. In this factory, there was a lot of traffic from vendors, and the dirt around the receiving and unloading area was quite severe. After cleaning, we were able to reset it beautifully. 【Details of the work】 ■ Cleaning of the exterior walls, platforms, and piping around the receiving and unloading area *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of replacing and cleaning artificial turf near the entrance of a university ground. At this university, the artificial turf was damaged and the underlying surface was exposed due to foot traffic and deterioration. By replacing the artificial turf, the aesthetics and environment were significantly improved, and surrounding damaged areas were also eliminated. 【Details of the work】 ■ Replacement and cleaning of artificial turf near the entrance of the ground *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of cleaning around the grounds at a certain university. At this university, the amount of fallen leaves was very large, making it difficult for the staff to manage. We conducted cleaning until there were almost no fallen leaves left. Additionally, debris had accumulated in the drainage ditches, but now the drainage is flowing properly. 【Details of the work】 ■ Cleaning of garbage and fallen leaves around the grounds *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of insulation material removal work carried out at a food factory. In this factory, the insulation material on the underside of the corrugated roof had deteriorated and was peeling off, resulting in frequent falls of the detached insulation material within the facility. Therefore, we focused on the areas where the peeling was severe and carried out the removal work. Approximately 70% to 80% of the insulation material on the roof surface was removed, eliminating the risk of falling insulation and significantly improving the aesthetics. 【Details of the work】 ■ Removal of insulation material from the roof surface *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of cleaning ventilation fans at a food factory. In this factory, the pressure ventilation fans had not been cleaned for several decades, resulting in significant dust accumulation. After cleaning, the pressure ventilation fans were in such a clean condition that the paint was visible, and the dirt that had been stuck to the fans was also removed. 【Details of the work】 ■ Cleaning of 3 pressure ventilation fans *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of mold removal cleaning conducted at a certain university. Due to the cafeteria not being used for a while, mold had developed, and we carried out mold removal cleaning in preparation for its renewal and reopening. We were able to remove the mold and restore it to its original condition. Additionally, the musty odor was significantly improved. 【Details of the work】 ■ Mold removal cleaning of the cafeteria ■ Cleaning of the ceiling, pillars, tables, chairs, etc. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of cleaning the outdoor air conditioning units at a food factory. In this factory, the units are installed outdoors and on the roof, which caused the intake vents and fans to become very dirty. Additionally, there was contamination from foreign objects, creating an environment where dirt easily accumulated. By regularly cleaning the outdoor units, we were able to prevent dirt buildup. Cleaning the exterior of the units also helps maintain their appearance. 【Details of the Work】 ■ Annual cleaning of all outdoor air conditioning units in the food factory *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of air conditioning disassembly and cleaning of commercial refrigeration and freezing equipment conducted at a food factory. In this factory, there were issues such as strong odors from the air conditioning units and reduced airflow. In manufacturing areas that handle powders, there were also occurrences of filter clogging and drain blockages. By regularly performing air conditioning cleaning, the hygiene environment of the work site improved significantly, and odors and filter clogging were greatly reduced. Additionally, the frequency of air conditioning unit failures decreased. 【Details of the Work】 ■ Cleaning of all air conditioning equipment in the food factory, conducted monthly over the course of one year, with 5 to 6 units cleaned each month. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of air conditioning disassembly and cleaning conducted at a food factory. There were strong odors and reduced airflow from the air conditioning units within the food factory, and in manufacturing areas handling powders, there were also occurrences of filter clogging and drain blockages. After cleaning, the odors and filter clogging were significantly improved, and by regularly performing air conditioning cleaning, the hygiene environment of the work site was enhanced. Additionally, the frequency of air conditioning unit failures decreased. 【Details of the Work】 ■ Cleaning of all air conditioning equipment in the food factory, carried out monthly over the course of one year, with 5 to 6 units cleaned each month. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of LED lighting installation conducted at a certain university. When entering by car, we requested visitors to register, but there was no lighting in the surrounding area, making it inconvenient during the evening and nighttime. Since there are many residences nearby, we carefully adjusted the angle of illumination to ensure that light did not enter the residential areas. By installing LED floodlights at a high position, we were able to maintain brightness around the guard station. 【Details of the construction】 ■ Installed LED floodlights on the roof of the guard station *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case study of LED lighting installation conducted by a certain manufacturing company. The manufacturer was using fluorescent and mercury lamps, and due to the long operating hours, the electricity costs were increasing. Additionally, there were many dark areas within the manufacturing zone, which affected work efficiency. By switching to LED lighting, energy savings became possible, and the on-site environment improved, leading to enhanced work efficiency. 【Details of the Work】 ■ Over 200 units of LED lighting installed throughout the manufacturing area and offices. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of LED lighting installation conducted at a certain food factory. At this factory, the switch to LED lighting was made due to issues such as "difficulty in obtaining fluorescent lamps and rising prices," "short lifespan of fluorescent lamps in the cold storage leading to high replacement frequency," "the need for aerial work platforms for replacements due to high ceilings, resulting in additional costs," and "many areas being quite dark as a working environment." After the installation, the illumination level improved, creating a brighter working environment. Additionally, the switch to LED lighting significantly reduced the frequency of replacements, leading to cost savings. 【Details of the construction work】 ■ Replaced fluorescent lamps in the cold storage with LED lighting specifically designed for freezing. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of LED lighting installation conducted at a certain food factory. In this factory, there was a waste storage area, and due to its proximity to the outside, a certain number of insects were attracted. Therefore, we adopted yellow lamps for the LED lighting that help reduce insect attraction. This has made it possible to minimize the presence of insects. 【Details of the construction work】 ■ Replaced the lighting in the waste storage area with LED lighting ■ Adopted LED lighting that is less attractive to insects *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of LED lighting installation conducted at a certain food factory. The factory was using fluorescent lights, but due to difficulties in obtaining them and rising prices, as well as many dark areas in the work environment, a switch to LED lighting was made. After the installation, sufficient illumination was ensured in the manufacturing area, leading to significant energy savings. Additionally, the work environment has greatly improved, and a second phase of LED lighting installation is being considered. 【Details of the Work】 ■ Over 120 LED lights installed in the manufacturing area and corridors. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of LED lighting installation at a certain food factory. The factory was using fluorescent lights, but due to difficulties in obtaining them and rising prices, they switched to LED lighting. After the installation, energy savings led to a reduction in electricity costs, and adequate illumination was secured, improving the working environment. Additionally, a second phase of LED lighting installation was initiated. 【Details of the Work】 ■ More than 50 LED lights were installed in the manufacturing area and corridors. *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of LED lighting installation conducted at a certain food factory. The factory was using fluorescent lights, but due to difficulties in obtaining them and rising prices, as well as a lack of consideration for the environment and energy-saving measures, they decided to switch to LED lighting. After the installation, sufficient illumination was ensured in the manufacturing area, leading to significant energy savings, especially in the visual inspection areas where the illumination was better maintained. 【Details of the work】 ■ Over 200 LED lights installed in the manufacturing area *For more details, please download the PDF or feel free to contact us.

• Other contract services

We would like to introduce a case of LED lighting installation conducted at a certain food factory. The factory was using fluorescent lights, but due to difficulties in obtaining them and rising prices, they switched to LED lighting. After the installation, energy savings led to a reduction in electricity costs. Additionally, adequate illumination was secured, improving the working environment. 【Details of the Construction】 ■ Installed over 40 LED lights in the manufacturing area and corridors. *For more details, please download the PDF or feel free to contact us.

• Other contract services