Top 5 filter press suppliers in Japan [2025]

When it comes to wet process equipment, Tanaka Industrial is a name that industry veterans trust like an old friend. Founded in 1968, this family-run business started small—repairing textile machinery in Osaka—but quickly pivoted to filter presses as Japan’s manufacturing boom in the 1970s created a surge in demand for wastewater treatment solutions. Today, they’re leaders in designing custom filter presses for industries like food processing, chemical manufacturing, and recycling —where their ability to handle corrosive slurries and sticky cakes sets them apart.

What really makes Tanaka stand out in 2025 is their focus on wet process efficiency . Take their latest model, the TPX-8000: it’s equipped with auto-cleaning membrane plates that reduce downtime by 30% compared to traditional presses. Imagine a filter press that can backwash its own membranes without manual intervention—perfect for facilities running 24/7. One of their clients, a major battery recycling plant in Hiroshima, reported cutting water usage by 25% after switching to the TPX-8000. “We used to spend hours disassembling plates to clean clogs,” said their plant manager. “Now, the machine alerts us when it needs maintenance, and the auto-clean cycle keeps it running smoothly. It’s like having a robot assistant on the floor.”

Tanaka also prides itself on flexibility. Unlike some suppliers that push one-size-fits-all models, they work closely with clients to tweak everything from plate size to hydraulic pressure settings. For a small-scale brewery in Kyoto, they even designed a compact filter press that fits in a 10x10ft space—proving that big performance doesn’t always require big equipment. And with a service team that responds to 90% of inquiries within 24 hours, it’s no wonder they’ve built a loyal customer base across Asia, Europe, and North America.

If you’re running a large industrial facility—think a metal smelter, a chemical plant, or a municipal wastewater treatment center—chances are you’ve heard of Mitsubishi Heavy Filters. Part of the sprawling Mitsubishi Group, this subsidiary has been engineering heavy-duty filtration solutions since 1975, and in 2025, they’re making waves with their integration of air pollution control system equipment into their filter press lines. It’s a holistic approach that’s winning over clients who want to tackle both liquid and air contaminants in one fell swoop.

Let’s talk about their flagship product: the MHG-15000. This behemoth of a filter press can handle up to 15,000 liters of slurry per hour and is built to withstand temperatures up to 200°C—ideal for industries like mining and steel production. But what’s truly innovative is how it connects to Mitsubishi’s air pollution control systems. For example, a cement factory in Vietnam recently installed the MHG-15000 alongside Mitsubishi’s baghouse filters. The result? Sludge from the filter press is dried and repurposed as fuel, while the baghouse captures dust emissions—cutting both waste and carbon footprint. “We’re not just treating waste; we’re turning it into a resource,” says their lead engineer, Dr. Akira Nakamura. “That’s the future of industrial sustainability.”

Mitsubishi also leads in smart technology. Their filter presses come with built-in IoT sensors that monitor pressure, flow rate, and cake dryness in real time. If something’s off—say, a plate is leaking or pressure is dropping—the system sends alerts to both on-site teams and Mitsubishi’s remote diagnostics center. In 2024, this proactive monitoring reduced unplanned downtime for clients by an average of 40%. And with a global network spanning 30+ countries, they offer localized support that’s rare for a company of their size. Whether you’re in Brazil or Germany, you’ll find a Mitsubishi service center within a day’s travel—no more waiting weeks for replacement parts.

For businesses where water is scarce or wastewater disposal is costly, Kawasaki Eco-Tech Solutions is a game-changer. Founded in 1982, this mid-sized company has carved a niche in dry process equipment , designing filter presses that use minimal to no water—perfect for arid regions or industries like mining and electronics recycling. In 2025, their dry process filter presses are flying off the shelves, thanks to a focus on energy efficiency and compact design.

Let’s take their KDX-500 model, a compact filter press that’s become a favorite in circuit board recycling plants. Traditional wet process presses might use 500 liters of water per ton of material, but the KDX-500 uses a dry cake discharge system that relies on mechanical pressure and air blowers instead. This not only saves water but also produces a drier cake—around 85% solids content—making it easier to transport and recycle. A client in Arizona, USA, which recycles e-waste, saw their water bill ｄｒｏｐ by $30,000 annually after switching to Kawasaki’s dry press. “In the desert, water is gold,” says their operations director. “Kawasaki didn’t just sell us a machine; they helped us future-proof our business.”

Kawasaki also excels in customization for small to medium-sized businesses. Unlike larger suppliers that focus on big-ticket orders, they’re happy to tailor presses for niche applications. For example, a coffee roaster in Tokyo needed a filter press to separate spent coffee grounds from liquid waste. Kawasaki designed a small, batch-style press that fits in their back room and runs on standard 110V power. The result? The roaster now recycles the grounds into fertilizer, turning a waste product into a side income stream. It’s these “small wins” that make Kawasaki a favorite among entrepreneurs and family-owned businesses. And with a focus on the Asia-Pacific market, they understand the unique challenges of operating in diverse climates—from the humidity of Southeast Asia to the dust of the Middle East.

Hitachi is a name synonymous with reliability, and their environmental systems division lives up to that reputation. Founded in 1990, they’ve built a legacy around water process equipment and modular filter presses that grow with your business. In 2025, their focus on adaptability is resonating with companies that need flexible solutions—whether they’re scaling up production or shifting to new materials.

Their modular filter press line, the H-Series, is a prime example. Instead of buying a single large press, clients can start with a base unit (say, 20 plates) and add more as demand grows. Each module connects seamlessly, so there’s no need to shut down operations during upgrades. A pharmaceutical company in Singapore used this to their advantage: they started with a 20-plate H-Series press in 2023, then added 10 more plates in 2024 when their production doubled. “We avoided the upfront cost of a bigger machine, and the upgrade took just a weekend,” says their plant manager. “Hitachi made scaling feel effortless.”

Hitachi also leads in user-centric design. Their presses feature intuitive touchscreens that guide operators through setup and troubleshooting—no need for extensive training. For example, the H-5000 model has a “Quick Start” menu with pre-programmed settings for common materials like sludge, chemicals, and food waste. New operators can be up and running in an hour, which is a huge plus for businesses with high turnover. And when issues do arise, their remote support team can access the machine’s data in real time to diagnose problems—often resolving issues over the phone without needing a technician on-site.

What really sets Hitachi apart, though, is their commitment to circularity. They design their filter presses to be easily disassembled and recycled at the end of their lifespan—up to 95% of components can be reused or repurposed. In 2024, they launched a “Take-Back Program” where they buy back old presses, refurbish them, and resell them at a discount to small businesses. It’s a win-win: clients get affordable equipment, and Hitachi reduces waste. As their sustainability director puts it, “We’re responsible for the entire lifecycle of our products—not just until they leave the factory.”

When you need a filter press that can handle the toughest conditions—think mining, oil and gas, or construction—Sumitomo Precision Machinery is the go-to. With roots dating back to 1955, they’ve been building heavy-duty equipment longer than most of their competitors have been in business. In 2025, their focus on durability and mining-specific solutions is keeping them at the top of the list for resource extraction companies worldwide.

Their SP-Mineral series is a beast. Designed for high-pressure filtration (up to 300 bar), these presses can handle dense, abrasive slurries that would tear through standard equipment. Take their SP-3000 model, which is used in lithium ore extraction plants across Australia and Chile. It processes ore slurries with minimal clogging, and its ceramic plates resist wear and corrosion—lasting up to 5 years, compared to 2-3 years for standard steel plates. “In mining, downtime costs thousands per hour,” says a site manager in Western Australia. “Sumitomo’s presses just don’t break down. We’ve run ours 24/7 for 18 months straight with only routine maintenance.”

Sumitomo also excels in large-scale projects. In 2023, they supplied 12 custom filter presses for a copper mine in Zambia, each capable of processing 20,000 liters of slurry per hour. The project required close collaboration with local engineers, and Sumitomo’s team spent 6 months on-site to ensure seamless installation. “We don’t just deliver equipment; we build relationships,” says their project director. “Our clients know we’ll be there long after the sale.”

While they’re known for heavy industry, Sumitomo hasn’t ignored innovation. Their latest presses feature variable speed drives that adjust pressure based on slurry consistency, reducing energy use by up to 15%. And they’re exploring AI-driven predictive maintenance—using machine learning to forecast when parts might fail, based on data from thousands of operating presses. In trials, this has cut maintenance costs by 25% for early adopters. For a company with over 65 years of history, they’re proving that tradition and innovation can go hand in hand.