エイチツー List of Products and Services

● Collecting waste oil like a vacuum cleaner We received a consultation from a user who wanted to collect waste oil like a vacuum cleaner, and we proposed the air diaphragm pump, which was adopted. 1. Want to collect a small amount of liquid 2. Needs self-priming capability and wants to collect waste oil like a vacuum cleaner 3. Also wants to collect slurry liquid 4. The collection and disposal locations are far apart 5. Can cover multiple collection locations with one unit (portable) We addressed the above five points by using the air diaphragm pump and making it easy to transport with a cart design. ● Waste oil accumulated in a drum can be discharged simply by switching the valve There is no need to lift the drum and carry it to the disposal location. With just the operation of the valve, it is possible to transfer the contents of the drum directly.

● The shape and size of solid materials are variable, and the wastewater contains mixed solvents for the recovery of suspended solids. In the wastewater treatment of a painting factory, the recovery of floating solids when two lines of wastewater mixed in the pit has been a challenge. The painting wastewater contains solvent-based components, and the suspended solids vary in shape and size. Despite such conditions, our floating solid recovery pump skimmer, the 【H-FR】, is performing excellently. ● It reliably follows water surface fluctuations and water flow. The wastewater treatment capacity is 1 ton per hour, and although there were significant fluctuations in the water surface and water flow, it is reliably transporting solids. There have been no adverse effects from the solvents, and the two units are operating alternately to continuously recover solids from the wastewater for 24 hours.

At the factory you requested, coolant sludge was collected and cleaned approximately once a quarter using a vacuum truck, but the quality degradation caused by the sludge before the vacuum truck arrived was a problem. Therefore, you consulted about whether there was a simple pump that could be used for collection, and we proposed the air diaphragm ADD type (cart specification). This product is convenient when you want to operate coolant sludge from various locations within the factory with a single pump. The cart itself can hold a drum, and it is equipped with an air three-point set, hose fittings, etc., considering the ease of handling for the operators. [Case Study] - Delivery: Aichi Prefecture automotive parts manufacturer - Application: Cleaning of coolant tanks - Model: ADD-15-PP-DS (cart specification) *For more details, please refer to the PDF document or feel free to contact us.

●Recovery of floating oil using a self-priming pump "I would like to recover floating oil using an existing self-priming chemical pump (from another manufacturer)." To meet the customer's request, we modified the float of our floating oil recovery skimmer and delivered it. We attached a custom-made suction inlet and hose attachment to the float, which is floated on the target water, enabling the recovery of oil using a self-priming pump. We were able to meet the request for "as low cost as possible," resulting in a satisfactory outcome for the customer. ●After transfer, filtration and circulation process The user originally had a self-priming filter from Company W, but with the expansion, it became necessary to recover the floating oil in the newly added tank. They were considering reusing the existing self-priming filter (pump) for the expansion to reduce initial costs. However, due to the high price of the float (parts only) from Company W, they consulted with us, and after thorough specification discussions, our solution was adopted.

●We want to recover floating oil from high-temperature wastewater in a narrow pit. Until now, workers have been recovering oil from the high-temperature wastewater accumulating in the pit using tools like a "hishaku" (a ladle). Due to the high temperature and the dangers of working above the pit, they were troubled about how to recover the floating oil. Therefore, H2 proposed a combination of the ADD type air diaphragm for high temperatures and a custom-made recovery float. This was accepted after a satisfactory demonstration on-site. ●The float was manufactured to fit the pit, made entirely of SUS316 material. We determined the float size to fit the narrow pit, and since it would be exposed to corrosive liquids and high temperatures, it was constructed entirely of SUS316. The processing of the funnel part of the float was particularly challenging, but we completed it without issues. H2 offers the "H-FR" series of pump skimmers, but if the size does not fit or if material considerations are necessary, we can flexibly accommodate custom requests. We have a wealth of experience, so if you are struggling with floating oil or debris, please feel free to contact us.

A major automotive parts manufacturer consulted us during the design of a new complete recycling system for bonding liquid (zinc phosphate) wash water. Based on our extensive experience with bonding liquid, we proposed a filtration system. "The filtering is done on the pump suction side, preventing sludge from flowing into the pump and reducing troubles." "A dual system allows one unit to operate while the other is being cleaned." "The adoption of the optimal filter," among other factors, was appreciated, and due to our prior transactions involving pumps and filters, our proposal was accepted. [Case Study] ■ Delivery: Automotive parts manufacturer O Company ■ Application: Sludge filtration of bonding wash water ■ Model: Bag filter housing (SUS) + filter, a total of 2 units *For more details, please refer to the PDF document or feel free to contact us.

A certain company was concerned about damage to their denitrification equipment caused by tiny slurries mixed into the urea solution supplied to the equipment, and they requested the production of a simple filtration device. By implementing a three-stage filtration process consisting of pre-filtration, mid-stage filtration, and post-filtration, we were able to extend the life of the filters while ensuring the reliable removal of impurities. Additionally, we created bypass piping for versatile use, allowing for flexible operation, such as omitting pre-filtration in certain situations. We were able to manufacture the device within the customer's budget, which resulted in great satisfaction. [Case Study] - Delivery: A certain company in Yamaguchi Prefecture - Purpose: Filtration of fluids supplied to denitrification equipment - Specifications: Chemical magnetic pump, filtration filters x3 *For more details, please refer to the PDF document or feel free to contact us.

● Significant Cost Benefits The user was using a 500mm 5μ string-wound filter cartridge as a pre-filter for their pure water system. In light of a cost review for the filter cartridges currently in use (replaced 2-3 times a week), they evaluated our string-wound filter cartridges. It was determined that our cartridges could be used without any loss of quality compared to the existing manufacturer's products, leading to the decision to switch to our cost-effective solution. ● Costs Reduced by Half. Quality is Equivalent. Our cartridges were priced at half the cost of the existing products, which initially raised concerns about inferior quality. However, the evaluation confirmed that the quality was indeed equivalent. At H2, we recommend providing samples for testing to customers considering switching filter cartridges. To alleviate concerns about low-cost products being of poor quality, we encourage customers to verify the equivalent quality in real-world applications before making a decision to implement our solution.

● Emphasis on Quality and Cost Performance We are considering a pure water system for drug dilution. After consulting with the equipment manufacturer, we proposed an ion exchange pure water system, which was adopted. We used a conductivity meter (EC meter) from Technomorioka and set it to issue an error signal when the upper limit (1.0μS/m) is reached via an analog signal. Initially, we planned for a water collection volume of about 8000L, but it turned out to be nearly double at around 14000L, resulting in a satisfactory outcome for the user. ● Quick Response for Ion Exchange Resin Regeneration Regeneration of the ion exchange resin can be done in about a week after the return of the canister. Of course, we can also offer proposals for regeneration costs that excel in cost performance. Additionally, H2 can design and construct RO pure water systems.

● We want to keep the bonding solution (manganese phosphate) in a clean state at all times. We received a consultation from N.P. Corporation, a major surface treatment manufacturer, stating, "We want to keep the bonding solution sludge in the new line in a clean state at all times." Since it is a high-temperature and corrosive liquid, we selected the air diaphragm type filtration unit ADF and conducted a filtration demonstration to verify sludge removal. ● No more sludge! To keep the tank clean at all times, we performed filtration in a circulation method, and the samples of the bonding solution before and after filtration are shown in the above photo. Furthermore, we confirmed in on-site filtration experiments that we could completely remove sludge as shown below. H2 has extensive experience and a proven track record in bonding solution filtration, having many partnerships with surface treatment factories.

●Reusable PVC punching processing We received an inquiry from a certain industrial waste treatment plant, stating, "We want to remove the sludge contained in the waste acid to protect pumps and other equipment." Since there is a possibility of corrosion with metal materials, we custom-manufactured a filter made entirely of PVC. The user requested that the filtration system be reusable and washable, rather than using bags or cartridges, so we created a basket with PVC punching. The mesh size was also manufactured according to the user's specifications. ●Easy to clean. Denden bolt specification By using a denden bolt for the opening and closing of the lid, we devised a way for operators to safely and easily clean the strainer. The interior is completely sealed with a gasket, and the pressure resistance is designed to match that of the transfer pump. H2 has extensive experience in sludge removal at industrial waste treatment facilities and surface treatment plants.

We received an inquiry from a car parts factory in Aichi Prefecture regarding the removal of sludge that occurs in bonding liquid. The amount of sludge was 1 to 2 bags (1t to 2t) per month, but they wanted to do this without incurring running costs, so we proposed the "Edge Wire Filter." This method has a proven track record in the carbon prevention process of another car parts factory, using a self-backwashing specification, and was adopted after several tests. [Case Study] ■ Delivery: Car parts factory in Aichi Prefecture ■ Application: Circulation filtration of sludge contained in bonding liquid ■ Model: Edge Wire Filter *For more details, please refer to the PDF document or feel free to contact us.

The surface treatment manufacturer was stopping the line to perform cleaning work, but they requested to remove the bonding liquid (zinc phosphate) sludge without stopping the line. Since a large amount of sludge is generated, we designed a custom 100L housing. To allow the bonding sludge to be discharged directly into a drum, the housing was designed to tilt, making it user-friendly for the operators. After delivery, there have been no major issues, and sludge removal has been successful, leading them to consider an additional unit. [Case Study] ■ Delivery: Surface treatment manufacturer ■ Application: Removal of high-temperature bonding sludge *For more details, please refer to the PDF document or feel free to contact us.*

A company specializing in the recovery of LiBr (lithium bromide) used in absorption chillers and heat exchangers in Aichi Prefecture contacted us, stating that they are looking for a pump that can recover lithium bromide solution in a short time. The pump they had been using was an electric double diaphragm pump, which was quite heavy and difficult to handle on-site, so we proposed the "Electric Diaphragm Pump SN Model" and arranged for them to use a demo unit once. They operated the demo unit, including checking the recovery capacity (suction capability) and corrosion resistance (as lithium bromide is a corrosive liquid), and we gathered their feedback. They expressed positive comments such as "It's small, lightweight, and easy to use" and "I was surprised by its power, more than I expected," leading to its adoption on-site. [Case Study] ■ Delivery: A certain company in Aichi Prefecture ■ Application: Extraction of lithium bromide solution from an absorption chiller ■ Model: Electric Diaphragm Pump SN Model *For more details, please refer to the PDF document or feel free to contact us.

A certain food company consulted us about updating their aging water supply equipment, specifically to install a filtration system that can easily filter out trace amounts of iron and sludge contained in well water, including a water tank and water pump. We conducted a hearing to understand the user's production volume changes and future needs, which helped us select the appropriate water tank and pump. After completing the trial operation, we confirmed that the bag filter effectively removed iron and sludge. Although the bag filter is a consumable item, the running costs were acceptable to the client, resulting in a highly satisfactory plant installation. [Case Study] ■ Delivery: A certain food company in Aichi Prefecture ■ Application: Simple filtration of well water ■ Model: Bag filter and PE tank *For more details, please refer to the PDF document or feel free to contact us.

We received an inquiry from a major surface treatment factory asking if it is possible to recover and separate the oil and sludge floating in high-temperature bonding liquid. They mentioned that there is a simple device already in place, but they are dissatisfied with the recovery efficiency, so they are considering an upgrade. To enable recovery and separation in high-temperature bonding liquid, we decided to custom-manufacture our ADB model in all stainless steel (SUS) specifications. The float to be placed in the bonding tank is also made entirely of stainless steel. We selected the ADD model air diaphragm pump in stainless steel specifications. [Case Study] ■ Delivery: Major surface treatment factory ■ Application: Separation and recovery of floating oil in bonding liquid ■ Model: ADB-15-SS (SUS specification) *For more details, please refer to the PDF document or feel free to contact us.

We received an inquiry from a waste disposal company in Oita Prefecture regarding the recovery of oil flowing into a newly established treatment plant's drainage pit. The recovery itself can be easily accomplished with the floating oil recovery pump skimmer "H-FR series," but they were also concerned about separation. Therefore, we proposed a separation tank and delivered it as part of a system with the recovery skimmer. Since they wanted it installed outdoors and above the pit, we closely coordinated the dimensions and layout, and manufactured the separation tank according to the user's specifications. 【Case Study】 ■ Delivery: Waste disposal company in Oita Prefecture ■ Purpose: Recovery and separation of oil flowing into the drainage pit ■ Model: H-250FR + separation tank (SS + coating) *For more details, please refer to the PDF document or feel free to contact us.

We received an inquiry from a metal processing product manufacturing company regarding the recovery of floating oil from their coolant tank. The ADB-15-PP was selected as suitable, and after testing it with a demo unit, they decided to implement it. Floating oil in water-soluble coolant tanks can lead to processing defects in the manufactured products and unpleasant odors. With the ADB model, recovery using an air diaphragm pump results in fewer troubles and is easy to operate. We recommend trying it out with a demo unit first to see the effectiveness for yourself. [Case Study] - Delivery: Metal processing product manufacturing company - Application: Recovery of floating oil from the coolant tank of a Fanuc RoboDrill - Model: ADB-15-PP *For more details, please refer to the PDF materials or feel free to contact us.

We received an inquiry from a certain heavy industry company in the Kansai region regarding the possibility of recovering floating oil in a narrow drainage pit with strong water flow. First, we lent them a demo unit of the H-FR type for evaluation. The on-site demonstration successfully recovered the oil without any issues and received positive feedback; however, there was one challenge. Due to the strong and narrow water flow in the pit, the recovery pump skimmer was hitting the inner walls of the pit, and they requested a solution to prevent this. In response, we proposed a guide pipe specification to protect the outer circumference of the floating oil recovery pump skimmer, which they adopted. 【Features】 ■ Delivery: Heavy industry company in the Kansai region ■ Application: Recovery of floating oil and debris in pits with strong water flow ■ Model: H-750FR (with guide pipe) *For more details, please refer to the PDF document or feel free to contact us.

We received an inquiry from an industrial waste disposal factory that handles battery recycling, stating, "When processing oil and other substances leak due to heavy rain, we collect them in drums and send them to a separate waste disposal company because it exceeds our wastewater treatment capacity. We would like to reduce that cost." In response, we proposed the recovery device with a separation tank, "ADB type," and promptly conducted a demonstration on-site. We confirmed that by placing a float in the drum (as shown in the photo), we could collect the surface oil, which led to an immediate order. With the introduction of the device, only the recovered oil becomes industrial waste, resulting in a significant reduction in volume compared to conventional methods. [Case Study] ■ Delivery: Industrial waste disposal factory ■ Application: Recovery of floating oil from wastewater mixed with oil collected in drums ■ Model: Floating oil recovery device with separation tank ADB-15-PP (transparent version) *For more details, please refer to the PDF document or feel free to contact us.

We delivered an oil skimmer to a manufacturing plant in Shiga Prefecture. They expressed a desire to "try it immediately," so we proposed a trial run with a demo unit and delivered it within a few days of the order. The customer had concerns about its use for crushing applications, but they were able to confirm the actual level of crushing with the demo unit and met the specifications. Since quantifying recovery and crushing is difficult, it is important for them to use the equipment to verify that it meets the specifications, which helps prevent future issues. Our company offers demo units for the entire lineup of recovery skimmers, so please feel free to contact us. 【Case Details】 ■ Delivery: A certain steel plant in Shiga Prefecture ■ Application: Recovery of floating oil and debris in a pit with strong water flow ■ Model: Floating Oil Recovery Skimmer H-FR *For more details, please refer to the PDF document or feel free to contact us.

We received a request from a certain major chemical factory in the Hokuriku region, stating, "We would like to recover sludge from a solution mixed with hydrochloric acid." Although the concentration of hydrochloric acid was low, it was difficult to use materials such as SUS, which are commonly used for recovery floats, so we proposed and adopted a custom-made resin recovery float. The strength was enhanced by extensively using PVC bending welding, and bolts were also made thicker and made of resin. This recovery float, which has corrosion resistance and was seemingly non-existent, was produced as a unique item, and we were able to deliver it. 【Case Details】 ■ Delivery: Hokuriku Chemical Factory ■ Application: Sludge recovery from a solution mixed with hydrochloric acid ■ Model: Resin recovery float *For more details, please refer to the PDF document or feel free to contact us.

We received an inquiry from a major surface treatment manufacturer, N.P. Co., regarding their desire to "keep the new line's bonding liquid sludge in a constantly clean state." Since the liquid is high-temperature and corrosive, we selected the air-operated diaphragm filtration unit, model ADF, and conducted a filtration demonstration to verify sludge removal. The photo shows the bonding liquid sampled before and after filtration, conducted in a circulation method to keep the tank clean. (Left is the raw liquid, right is after filtration.) Furthermore, we confirmed that the filtration experiment on-site completely removed the sludge. 【Case Details】 ■ Client: Major surface treatment manufacturer N.P. Co. ■ Application: Filtration of high-temperature bonding liquid ■ Model: Air-driven filtration unit, model ADF *For more details, please refer to the PDF document or feel free to contact us.