前川製作所 List of Products and Services

◆Overview This is a batch-type rapid freezing device suitable for small quantities and a wide variety of products. It controls cooling and freezing times to provide the optimal freezing method for any product and operational method. It can accommodate either shelf-type or cart-type configurations to match the customer's on-site operations. Additionally, it can respond to planned production needs with a first-in-first-out approach and can also propose cart-conveyed continuous freezers. ◆Reasons for Selection A lineup that can accommodate various products and operations We offer multiple lineups to meet the needs of our customers' products, processing volumes, and operations. The input method can be changed to match the shelves or carts used in production sites. It also supports automatic cart conveyance, contributing to a first-in-first-out operation that reduces the burden on workers. Custom-made design tailored to the customer's operations and workflow In the case of batch-type needs for small quantities and a wide variety of products, the freezing time varies depending on the type of product, and production volumes also differ. Therefore, customization is necessary while considering actual operations. We propose a custom-made design that takes into account efficient operations at the customer's site, including not only the design of the number and size of rooms but also software aspects such as timer functions for each room. For more details, please contact us.

• Spiral Freezer
• Tunnel Freezer
• Other refrigerated/frozen

◆Overview The IQF line freezer is the ideal equipment for the needs of individual quick freezing of products. On the 1st conveyor, products are surface-frozen while being separated, and on the 2nd conveyor, they are stacked in multiple layers for complete freezing. It can freeze more rapidly than block freezing, allowing for a compact installation space. There are proven results with a wide range of products including vegetables, fruits, seafood, and prepared dishes. ◆Reasons for Selection Achieves further rapid freezing with unique separation technology By combining strong airflow from below with physical force from a vibration device, it enables higher quality separation and rapid freezing. Even products with high moisture content and stickiness, such as shrimp, can be reliably individually quick frozen. Reduces the number of fans due to space-saving design In addition to surface freezing the products on the 1st conveyor and stacking them in multiple layers on the 2nd conveyor, the rapid freezing effect from vibration allows for a shorter freezer length. This not only saves space but also reduces the number of fans, contributing to energy savings. For more details, please contact us or download the catalog.

• Spiral Freezer
• Tunnel Freezer
• Other refrigerated/frozen

◆Overview Conventional contact freezers utilize a highly efficient contact freezing method and have a simple mechanism, making them effective for applications like onboard freezing. However, there has been the challenge of manual loading and unloading, which is labor-intensive. Tak-Auto has successfully automated the loading and unloading processes, eliminating the need for dangerous and strenuous manual labor. With an innovative mechanism, it can continuously accept products and synchronize with upstream and downstream production equipment. ◆Reasons for Selection Automating the loading and unloading of products contributes to labor-saving at the site. By opening and closing plates one level at a time, it automates the simultaneous loading of new trays and unloading of frozen trays while freezing other levels. This eliminates the need for stacking and unloading tasks, contributing to labor-saving at the site. Additionally, the removal of transport routes for product carts enhances safety at the site. If multiple contact freezers are in use, they can be consolidated into one unit, allowing for space-saving. ● For more details, please contact us or download the catalog.

• Tunnel Freezer
• Spiral Freezer
• Other refrigerated/frozen

◆Overview The multi-layered freezer adopts a new drive method, achieving a more space-saving design compared to traditional spiral freezers. It allows for bottom loading and unloading with a single tower, accommodating flexible layouts tailored to the site. Additionally, its drumless design enhances visibility and makes it easy to clean, ensuring a hygienic structure. ◆Reasons for Selection Achieving further space-saving installation with single tower bottom loading and unloading By employing an outer sprocket drive method, it has become possible to have bottom loading and unloading with a single tower. Furthermore, the smaller inner diameter has successfully reduced space even more compared to conventional spiral freezers. It also supports flexible layout options, allowing us to propose solutions tailored to the customer's production site. Increased hygiene with drumless and baffle-less design The outer sprocket drive method has resulted in a drumless and baffle-less structure. This improves visibility inside the freezer, making inspection and cleaning significantly easier. When combined with the optional CIP cleaning, even more efficient cleaning is possible. ● For more details, please contact us or download the catalog.

• Spiral Freezer
• Tunnel Freezer
• Other refrigerated/frozen

◆Overview The spiral freezer is a continuous freezing freezer with a three-dimensional conveyor belt arrangement. It responds to the demand for mass production in production sites with limited installation space. Leveraging years of experience, we select the optimal freezer tailored to each customer's products and operations. ◆Reasons for Selection With a highly flexible design, it can be implemented in any production site. When considering a spiral freezer, it is important to evaluate not only the production volume and freezing time of the products but also the installation space and the layout of the upstream and downstream lines, tailored to the customer's site. We provide optimal proposals through considerations of belt width, number of tiers, and a highly flexible conveyor layout design. Additionally, it is also possible to consider using plastic for the belt material. Optimal Proposals Tailored to Customers We propose the best cooling method by considering the type of product and packaging (trays or wrapping) along with combinations of airflow methods and wind speeds. For more details, please contact us or download the catalog.

• Spiral Freezer
• Tunnel Freezer
• Other refrigerated/frozen

◆Overview This is the latest model of cooling and freezing freezer packed with technology and know-how cultivated in the food processing field, based on the concepts of "cleanability," "visibility," "compactness," and "optimal cooling." It also comes standard with steam sterilization and CIP cleaning, making it an ideal model for product cooling that requires high hygiene management. ◆Reasons for Selection Achieves high cleanability with a footless structure inside the chamber As a result of thoroughly pursuing the cleanability of the freezer interior, we have realized a "footless structure" that eliminates all structural elements such as conveyor legs from the floor of the chamber. This significantly reduces the retention of product residues inside the freezer compared to conventional models. Adopts a vertically sliding large door The large door installed on one side of the freezer improves visibility inside the freezer, including the product transport area, enhancing the efficiency of cleaning operations. Since the large door uses a vertical sliding mechanism, it eliminates the need for opening and closing space, allowing for a compact installation. Standard equipped with steam sterilization and CIP cleaning This model is highly hygienic, equipped with standard CIP cleaning and steam sterilization systems. These two functions enable it to meet the hygiene management requirements for chilled products. For more details, please contact us or download the catalog.

• Spiral Freezer
• Tunnel Freezer
• Other refrigerated/frozen

◆Overview We pursued a simple and compact structure while maintaining the necessary functions of the Thermo Jack Freezer. The reduction in size has achieved space-saving installation and energy efficiency. Additionally, due to factory-integrated manufacturing, it can be loaded onto trucks as a whole or semi-integrated unit. It can also be delivered in its original form, significantly shortening the construction period. ◆Reasons for Selection Compact design achieves space-saving and reduced construction time. While maintaining the cooling performance of the Thermo Jack Freezer, we focused on a simple structure that streamlines necessary functions, successfully reducing the width by approximately 20% compared to the Thermo Jack Freezer. Factory-integrated manufacturing allows it to be loaded onto trucks in a whole or semi-integrated form. Since it can be delivered in its original state to the installation site, the construction period can be significantly shortened (as short as 3 days). For more details, please contact us or download the catalog.

• Tunnel Freezer
• Spiral Freezer
• Other refrigerated/frozen

◆Overview A tunnel-type continuous rapid freezing device that incorporates a collision jet effect into the conventional air blast method, reducing freezing (cooling) time by 1/2 to 2/3. The reduction in freezing (cooling) time leads to improved product quality and reduced installation space. The specifications of the belt can be selected in various ways to suit the products and needs. This freezer is adaptable to a wide range of products, from liquid and granular products to bagged and bulk items. Additionally, considering ease of cleaning, it features a standard floor drain pan system and a simple structure that makes internal cleaning easy. ◆Reasons for Selection Rapid freezing using the collision jet (impingement) method The collision jet directly impacts the product through slit nozzles located at the top (and bottom) of the product, generating the Coanda effect*, which enables a reduction in freezing and cooling time. Furthermore, because the cold air is pushed in from the slits, there is less variation in wind speed on the left and right sides of the belt, allowing for uniform cooling and freezing. *Coanda effect: The air hitting the top of the product flows down around it, enhancing the heat transfer rate. For more details, please contact us or download the catalog.

• Tunnel Freezer
• Spiral Freezer
• Other refrigerated/frozen

◆Overview This system produces and stores slush ice using a supercooled ice-making method, efficiently supplying chilled water close to 0°C. Compared to conventional thermal storage equipment, it has less thermal resistance from ice during the ice-making process, making it a highly efficient ice-making method. The generated slush ice has excellent defrosting characteristics, allowing it to respond to sudden load fluctuations and consistently supply stable low-temperature water. It is ideal for production processes such as cooling in dairy beverage factories, product cooling in food factories, and thermal storage air conditioning systems in pharmaceutical and food factories. *Note: The supercooled state refers to water that is below 0°C but remains in liquid form rather than turning into ice. ◆Reasons for Selection A next-generation ice thermal storage system that maximizes energy efficiency. By adopting the next-generation ice-making method "supercooled ice-making method," this system achieves top-class energy-saving performance in the domestic ice thermal storage market. It operates with high efficiency without the efficiency decline associated with traditional ice-making, contributing to reduced electricity costs for customers. For more details, please contact us or download the catalog.

• Refrigeration equipment/chiller
• Chiller

◆Overview This is an ice thermal storage chiller water supply system developed in collaboration by Maekawa's natural refrigerant refrigeration technology and Japan B.A.C. Co., Ltd.'s ice-making technology. (Patent pending) It is an environmentally friendly, non-Freon system that provides stable supply of cold water close to 0°C in a space-saving, safe, and highly efficient manner. It received the Heat Pump and Thermal Storage Center Promotion Award from the General Incorporated Foundation for the Demand Side Management Awards in the first year of Reiwa. ◆Reasons for Selection Environmental Contribution & Energy Saving Effects The system is equipped with environmentally conscious features such as the use of natural refrigerants, energy saving, and efficient power usage through smart energy management. Additionally, by combining with demand response and solar power generation, it enables effective use of energy, allowing for economical operation while reducing environmental impact. Compact & Quick Response to Demand Despite being space-saving, the increased ice production capacity allows for high ice-making ability even in confined spaces. Moreover, it can be installed in a short construction period, minimizing equipment downtime and enabling efficient installation. These features contribute to cost reduction, productivity improvement, and enhanced convenience in various aspects.

• Refrigeration equipment/chiller
• Chiller

◆Overview By adopting a heat pump for the regeneration heat source, we achieve dehumidification in low-temperature environments (-5 to 5°C) with less energy compared to existing systems. This expands the possibility of using desiccant dehumidifiers even in refrigeration facilities without thermal sources or waste heat. Furthermore, we use the natural refrigerant CO₂, which has a low global warming potential and is safe, contributing to "global warming prevention." ◆Reasons for Selection Energy-efficient Dehumidification Traditionally, electric heaters or steam were used as regeneration heat sources for desiccants, and the dry air after adsorption would increase in temperature, necessitating chillers. This resulted in very high energy consumption, placing a significant cost burden on customers. The "chris" employs a heat pump system that can perform both cooling and heating with a single unit, greatly reducing power consumption (input energy). Prevention of Condensation It eliminates fog, wet floors, and puddles in various scenarios such as C-class refrigerators, loading docks, vehicle bays, meat centers (cutting rooms, etc.), and ice skating rinks. It can supply air with a dew point temperature below 0°C, which is unattainable with cooling dehumidification methods, thereby suppressing the occurrence of mold and rust in low-temperature environments.

• Dehumidifier

◆Overview This is an environmentally friendly snow melting system that effectively utilizes unused energy sources (groundwater, geothermal heat, hot springs, seawater, and secondary treated water) as heat sources. It achieves low running costs through heat pump technology that makes effective use of unused energy. We can also propose snow melting systems that use geothermal heat, secondary treated water, factory waste heat, tunnel air, and tunnel spring water as heat sources. ◆Reasons for Selection For snow melting and freeze prevention in winter It contributes to snow melting and freeze prevention on roadways, sidewalks, parking lots, and station plazas during winter. It has been adopted nationwide to ensure barrier-free access in winter, safe traffic routes, and to avoid traffic accidents. Utilization of groundwater heat (geothermal heat) Stable heat (10 to 15°C) can be obtained from groundwater even in winter. Compared to electric heater systems, it has superior running costs (about 1/5 to 1/6). By utilizing heat pump technology, it significantly reduces the amount of groundwater used compared to traditional groundwater circulation methods. It allows for expansion plans for existing groundwater circulation facilities with the same amount of groundwater. For more details, please contact us or download the catalog.

• Energy efficient utilization system

◆Overview The non-Freon air heat source snow melting heat pump is a snow melting system that utilizes the energy from the air. It achieves low running costs compared to snow melting methods using fossil fuels like boilers or electric heater systems. Additionally, by adopting CO₂ refrigerant, the first in the industry, it offers unparalleled safety and environmental benefits. Its space-saving design allows for flexible installation locations. ◆Reasons for Selection Environmentally friendly and energy-efficient We are the first in the industry to adopt CO₂ refrigerant with an ozone depletion potential of "0" and a global warming potential of "1." By effectively using the energy from the air to warm the brine for snow melting, only a small amount of electricity is required. This significantly reduces energy costs compared to boilers and electric heaters. Ideal for renewing snow melting equipment It is perfect for renewing aging snow melting boiler units, electric heating systems for snow melting, and snow melting heat pumps using specified refrigerants (such as R22). For more details, please contact us or download the catalog.

• Energy efficient utilization system

◆Overview The circulation heating of hot air, which was difficult with conventional heat pumps, is achieved by the circulation hot air heat pump "Eco-Circuit," which is the first in the industry to realize circulation heating with a small temperature difference (5-10°C) up to 100°C. This groundbreaking heat pump effectively utilizes renewable energy sources such as chilled water, waste heat, and well water used for process cooling, providing the air needed for drying and heating with high efficiency. Eco-Circuit generates hot air without using fire. Additionally, the cold water produced simultaneously with the hot air can be utilized for air conditioning and process cooling. It meets various drying and heating needs while reducing CO₂ emissions, saving energy, and lowering costs, thereby meeting user expectations. ◆Reasons for Selection Heating air without using fire It responds to the annual heating demands required in factories, maintaining a high temperature in the room without using fire. Therefore, automatic operation at night is also safe. Due to the heat pump method, there is a significant difference in energy costs and CO₂ emissions compared to conventional methods (such as steam heating). Furthermore, because it uses a water heat source method, it can supply cold heat as a chiller for process cooling applications, serving both heating and cooling functions with a single unit. It also adopts a green refrigerant with a global warming potential (GWP) of less than 1, minimizing its impact on the environment. (GWP < 1, ODP = 0)

• Other drying equipment
• Drying Equipment
• Drying Equipment and Devices

◆Overview "Eco Shirocco" is the ideal equipment for transient hot air supply systems used in paint drying booths, drying ovens, dryers, tray cleaning machines, spray dryers, heating chambers, reduction devices, and desiccant rotor regeneration for dehumidification. It achieves 50% energy savings compared to conventional methods using boilers and burners, while also allowing for cold water supply. If there is cooling water for cooling after heating, industrial water, various cooling waters, cold water for dehumidification, and steam condensate, heat can be recovered from these sources, enabling power reduction of existing chillers, prevention of cooling water temperature rise in summer, and heat reuse. For more details, please contact us or download the catalog.

• Hot air dryer
• Dehumidifier
• Other heating equipment

◆Overview This is a heat pump water heater that combines the functions of both air heat source and water heat source eco-cute. It can efficiently supply hot and cold water simultaneously using the "water heat source," enabling high-efficiency operation. When the cooling load decreases, it can switch to the "air heat source" to continuously supply hot water. Utilizing the technologies developed from the use of heat from air and water, it provides the most efficient operation year-round, tailored to the needs of facilities and factories that require hot water or cooling. ◆Reasons for Selection Realization of switching between "water heat source" and "air heat source." Even in processes where balancing cooling load and heating is difficult in terms of time and quantity, it is possible to switch heat sources according to the load. The "Unimo AWW," which ensures a heat source at all times, contributes to energy savings and CO₂ reduction 24 hours a day, 365 days a year. For more details, please contact us or download the catalog.

• boiler
• Refrigeration equipment/chiller
• Other energy equipment

◆Overview This is a commercial and industrial heat pump water heater that utilizes air's thermal energy to achieve high-efficiency hot water supply, employing natural refrigerant CO₂. It uses the thermal energy from the air to supply large volumes of hot water at temperatures up to 90°C. It is ideal as a replacement for boilers aimed at carbon neutrality or for facilities looking to implement non-fluorinated circulating heating. We meet the energy-saving and CO₂ emission reduction needs of various customers, including factories, hospitals, and elderly care facilities that require hot water. ◆Reasons for Selection EcoCute with the No. 1 heating capacity Based on the standard model, we have upgraded it to achieve one of the highest heating capacities, with a winter capacity of 84kW. It also achieves a winter insulation heating capacity of 50kW. *As of November 2022 (according to our research) For more details, please contact us or download the catalog.

• boiler
• Other energy equipment

◆Overview This heat pump using natural refrigerant CO₂ supplies both hot and cold water simultaneously. The maximum hot water supply temperature is 90°C, and it is also compatible with chiller water or brine cooling. It is possible to effectively utilize unused heat (such as warm wastewater and cooling water). Since temperature control for the cold water outlet is also selectable, it can be used for updating existing chillers. ◆Reasons for Selection Combines the functions of a boiler and a chiller in one unit. By supplying hot water and chiller water simultaneously, it enables highly efficient operation, making it ideal for reducing energy consumption. Its compact size allows for installation both indoors and outdoors. For more details, please contact us or download the catalog.

• Other energy facilities
• boiler
• Refrigeration equipment/chiller

◆Overview Pale Robo is a palletizing robot developed in response to the needs of food factories. By combining it with a turntable, the range of motion of the robot arm is minimized, allowing it to be installed in less than half the space of conventional robots. It accommodates a wide variety of case shapes and weights, and we provide optimal proposals for our customers considering site space, operational methods, and safety. ◆Reasons for Selection Achieving space-saving installation through innovative ideas Conventional palletizing robots often use large robots that can reach the entire area of the pallet. Pale Robo employs a compact scalar robot. By rotating the turntable, we significantly reduce the range of motion of the robot arm, achieving space-saving installation. Additionally, installation takes only 1 to 2 days, allowing for construction without stopping production. Considering on-site handling, we use a slim turntable We utilize a slim turntable with a thickness of 40mm. It can be directly installed on the floor, eliminating the need for embedding work. Pallets can be handled with hand lifters or forklifts. For more details, please contact us or download the catalog.

• Transport and handling robots
• palette
• Other industrial robots

◆Overview This is a non-fluorocarbon automatic ice-making system specifically designed for plate ice, jointly developed by Maekawa and Aiseman Co., Ltd., which have a long track record in the ice-making and cooling market. It produces high-quality plate ice with uniform thickness, low impurities, and high transparency. Plate ice is hard, has excellent cold retention properties, and can be crushed, making it suitable for various applications. ◆Reasons for Selection High-quality ice with high efficiency The ice maker adopts a CO₂ liquid pump system. Because the refrigerant is evenly distributed and there are no temperature variations, it produces ice with uniform thickness that has high cold retention and is difficult to melt. An efficient NH₃/CO₂ refrigerant indirect cooling system is used as the heat source, allowing for up to a 50% reduction in power consumption for the freezer*. The ice maker operates in an oil-free system that circulates only CO₂, improving ice-making efficiency by 20%* without performance degradation. *Compared to our conventional fluorocarbon models. Wide Range of Lineup We offer a wide range from 3 tons to large capacity of 25 tons. A fully automatic ice-making system can be flexibly realized. For ice production up to 12 tons, a refrigeration safety manager is not required. The freezer and ice maker only need to connect CO₂ piping and electrical wiring, resulting in shorter construction periods and minimizing CO₂ charge amounts. For more details, please contact us or download the catalog.

• Other food machinery
• Frozen dessert manufacturing equipment
• Ice maker

◆Overview This is a non-fluorocarbon automatic ice-making system specifically designed for flake ice, jointly developed by Maekawa, a company with many years of experience in the ice-making and cooling market, and Aiseman Co., Ltd. It produces high-quality flake ice with an unprecedented ice thickness of up to 2.0mm, which is less prone to melting. Flake ice can envelop items without gaps, making it suitable not only for rapid cooling but also for maintaining quality at ice temperatures. ◆Reasons for Selection High-efficiency Ice Making It is capable of continuously producing ice with a thickness of up to 2.0mm. Additionally, it employs an indirect cooling method using an ammonia refrigeration system that operates efficiently throughout the year, cooling CO₂ secondary refrigerant. The refrigeration unit reduces power consumption by 20% compared to conventional ice-making systems. The oil-free system that circulates only CO₂ improves ice-making efficiency by 40% and does not suffer from performance degradation. *Compared to conventional ice-making systems. Wide Range of Lineup We offer a wide range of options from 10 to 54 tons per day. The thickness of the ice can also be adjusted between 1mm and a maximum of 2mm. We flexibly respond to customer needs. For more details, please contact us or download the catalog.

• Other food machinery
• Ice maker
• Frozen dessert manufacturing equipment

◆Overview An air curtain that shuts out insects entering through openings in food factories, confectionery factories, pharmaceutical factories, etc. It captures insects through the intake and insect-proof mesh and can discharge them from the lower tray. By preventing insects from entering the premises, it solves hygiene issues such as contamination of products and the introduction of bacteria. ◆Reasons for Selection Since it captures insects on the first try, there is no second chance. It not only repels insects entering through entrances and exits but also reduces the number of insects through suction and capture, thereby lowering the invasion rate. "Inlet that captures insects and doesn't let them escape" The inlet opens simultaneously with operation, starting to suck in invading insects, and closes at the same time as stopping, ensuring that captured insects do not escape. "Insect-proof mesh that weakens captured insects" Inside the inlet, there is an insect-proof mesh with a size of 0.75mm x 0.75mm that prevents even small insects from escaping. It contains low-toxicity agents that weaken the captured insects. For more details, please contact us or download the catalog.

• curtain
• Other safety and hygiene products
• Insect Control System