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Decanter centrifuge ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses
무급유 베어링 원심탈수기
Decanter centrifuge ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses
sludge dewatering machine ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses
원심농축기 원심분리기 ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses
ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses
ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses
ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses
ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses

Decantercentrifuge

Fully automated system
Silent and free from nuisance smells
Self-lubricating bearings
Acceptable for any kind of slurry
D-LM-NT-R300 Specs
Capacity 5 - 10 m³/hr
Dimension 2500 x 900 x 850 mm
Motors 11 kW + 2.2 kW
Weight 2500 kg
Drawing (for reference) Drawing (for reference)
D-LM-NT-R350 Specs
Capacity 5 - 10 m³/hr
Dimension Dimension 2800 x 1000 x 950 mm
Motors 22 kW + 3.7 kW
Weight 3500 kg
Drawing (for reference) Drawing (for reference)
D-LM-NT-R400 Specs
Capacity 15 - 20 m³/hr
Dimension 3300 x 1200 x 1100 mm
Motors 37 kW + 7.5 kW
Weight 4000 kg
Drawing (for reference) Drawing (for reference)
D-LM-NT-R450 Specs
Capacity 20 - 25 m³/hr
Dimension 3500 x 1300 x 1200 mm
Motors 45 kW + 11 kW
Weight 5000 kg
Drawing (for reference) Drawing (for reference)
D-LM-NT-R500 Specs
Capacity 25 - 30 m³/hr
Dimension 3900 x 1400 x 1400 mm
Motors 55 kW + 15 kW
Weight 6000 kg
Drawing (for reference) Drawing (for reference)
D-LM-NT-R550 Specs
Capacity 25 - 30 m³/hr
Dimension 3900 x 1400 x 1400 mm
Motors 55 kW + 15 kW
Weight 6000 kg
Drawing (for reference) Under preparation
D-LM-NT-R620 Specs
Capacity 45 - 55 m³/hr
Dimension 5000 x 1700 x 1600 mm
Motors 75 kW + 22 kW
Weight 8500 kg
Drawing (for reference) Under preparation
D-LM-NT-R700 Specs
Capacity 55 - 65 m³/hr
Dimension 2500 x 900 x 850 mm
Motors 11 kW + 2.2 kW
Weight 11300 kg
Drawing (for reference) Under preparation
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Product Category : sludge dewatering machine

This is the 3D model of the decanter centrifuge researched and developed by ARK R&D Team engineers. It helps customers clearly visualize the details of each component, such as the centrifugal chamber, screw, motor, and gearbox unit.

Optimal 3D Viewing Environment : PC (i5 or higher), Mobile (Android 7.0 or higher, or iOS 14.0 or higher)

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ARK Decanter Centrifuge Overview

Capacity Maximum 65 m³/hr
Fed Slurry Concentration 1.0 - 2.5%
Permissible Slurry Types No limitation
System Fully automated and sealed configuration, equipped with self-lubricating bearings and motor
The decanter centrifuge is composed of a rotating tapered cylinder and a rotating screw with slightly differentiated speeds.
The centrifugal force moves the suspended solids present in the slurry toward the peripheral zone of the cylinder, where the thickened solids are scraped by the screw blades.
In this way, the thickened solids (dewatered sludge cake) and the supernatant are continuously separated from the slurry continuously fed to the decanter centrifuge.

⚙️ARK’s Decanter Centrifuges

ARK has designed the outer shape of the decanter centrifuges like a swimming dolphin, which allows the equipment a small footprint and ease of operation/maintenance. 
The machines are made of high-quality materials based on Korean Industrial Standards, resisting corrosive liquids and ambient conditions. Each part is readily to disassemble for maintenance. The manufacturing at our factories is according to ISO 9001:2015 standards.
The system allows for easy control of the moisture content in dewatered sludge cake, even in an operation mode. Each essential part is mechanically sealed to minimize the production of nuisance odors during the sludge dewatering.
Furthermore, the machines are equipped with a timer-programmed self-cleaning system. The sets of self-lubricating bearings equipped with the rotating shaft reduce the manpower for their regular mechanical maintenance.

🏭 Reasons that you need to install the sludge dewatering system at your factories/treatment plants

ARK's Decanter Centrifuges enable remarkable cost reduction in your factories and treatment plants.

Due to the high centrifugal power, the machines are able to receive a large volume of slurry per unit of time. Our lineups having a wide range of capacity must cover any factories and treatment plants in size of production.

Compared to the conventional sludge thickening, such as gravity thickening, the volumes of the wastes could be reduced by almost 90%. This performance correspondingly saves the sludge disposal cost at the factories/teratment plants.

Furthermore, the labor cost for the sludge treatment at the factories/plant can also be correspondingly reduced. This is because the machines can receive a high volume of the slurry per unit of time.

In general, the expense for sludge treatment, including sludge disposal, can be reduced to as low as 10% of that outsourced in a slurry form. This means that the investment cost of the sludge dewatering machine may be recovered within 1-2 years.

🤝Customer-support services

ARK's priority is customers' satisfaction, and ARK is an integrated manufacturer covering machine design, manufacturing, and engineering.
Our customer-support service teams are pleased to be rendered to perform a test run and a technical training program upon your requests. We receive the highest reputation from the customers for the systematic after-sales service.
ARK holds plenty of stock for spare parts in our factories in Vietnam and Korea. The spare parts are delivered to your sites no sooner than we receive your request.
In case of issues of mechanical malfunctions, our skillful technical team rushes to the customer's site in Asian countries for immediate maintenance and repair.  In addition, the team is pleased to visit your plants at regular intervals for checking the machines.
When you are considering a procurement of our products, contact us for a FREE trial run, our technical suggestions, and a preliminary quotation.
ARK 문의 및 요청(페이지내)

Inquiries and requests for ARK

💡Recommended ARK’s additional equipment with decanter centrifuge

In the sludge dewatering process with a decanter centrifuge, a pre-mixing process for the polymer flocculant and the slurry (or wastewater) is basically unnecessary.

You can feed the solution of polymer flocculant to the decanter centrifuge with a pump. The polymer solution may be prepared with a flocculant-dissolving system additionally purchased from ARK.

ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses

FREETA-α

Flocculant-dissolving system for Powdered Polymer Flocculants
ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses

FREETA-β

Flocculant-dissolving system for Emulsion Polymer Flocculants
Machine type View on browser Download Electronic Files
D-LM-NT-R300
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D-LM-NT-R350
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D-LM-NT-R400
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D-LM-NT-R450
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D-LM-NT-R500
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✅ Is the operation of a decanter centrifuge complicated?

ARK's decanter centrifuges are easy to operate due to their elaborate and automated configuration. The moisture content of the dewatered sludge cake is easily optimized even in an operational mode. We are pleased to offer technical training at the customers' convenient sites.

Brochure about ARK’s products
(in Korean language)

ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses

ARK News
(machine-translated)

  • Vietnam's Hidden Growing Pains, Environmental Concerns: Finding ‘Green Business’ Opportunities in a Time of Crisis

    Vietnam has been dubbed the ‘new dragon of Asia" due to its spectacular economic growth. But beneath the glittering growth are serious growing pains. Endless waste, polluted nature, and graying skies. The Vietnamese government has recognized the seriousness of the problem and has drawn the sword of the law, but with great change comes great opportunity. Right now, Vietnam's environmental problems are paradoxically [...].
    October 28, 2025
  • The Present and Future of Vietnam's Water Market: Where Are the Opportunities? (Latest Trends to 2025)

    Vietnam Water Market Insights Source: Water & Sewerage / Overseas Construction Association Hyo Eun Kim Vietnam's spectacular economic growth is no secret. However, there is another reality behind this spectacular growth that we need to pay attention to. That is the issue of water infrastructure. Despite having abundant water resources, dilapidated water facilities that cannot keep up with the pace of rapid urbanization and industrialization are a challenge that Vietnam must address, and at the same time, a barrier to new business [...]
    October 30, 2025
  • Exhibiting at Vietnam Water Week 2025

    My name is Seulgi Kim, Marketing Manager of ARK company. ARK is participating in the 3-day VIETNAM WATER WEEK exhibition. Vietnam Water Week 2025 is an international exhibition in the field of water supply, sewage, water purification, wastewater treatment and environmental sanitation, and is a well-established environmental exhibition in Vietnam. We will be showcasing our next-generation decanter centrifuge, which has been continuously improving its performance through ongoing research and development (R&D) projects to ensure outstanding efficiency, and will be attracting much attention [...]
    August 6, 2025
  • Attending Indonesia Water Treatment Expo 2025

    ARK Participation in Indonesia Water Treatment Expo! Hello, this is Seulgi Kim, ARK Korea Marketing Manager. ARK is participating in a water treatment fair in Indonesia. We would like to meet and greet with many representatives and companies related to sewage and wastewater treatment in Indonesia and explain our products. We are a product that has received the best rating as a ‘procurement superior product‘ certified by the Korean government, which is designed to meet the standards of advanced urban water treatment in Korea. We have entered the Indonesian water industry and [...]
    August 6, 2025
  • ARK ENVEX2025 Review

    Review of NVEX 2025, Valuable time to meet decanter centrifuge and screw press buyers Our booth, which was visited by many people, was closely watched not only by buyers but also by representatives of related organizations such as the water cluster and the Korea Environment Agency. As a company belonging to the water industry cluster, we also participated in the exhibition with pride. Our booth, which was visited by many people, was observed not only by buyers, but also by representatives of related organizations such as the water cluster and the Korea Environment Agency. Let me introduce the companies whose booths attracted attention among the various companies. CJK (CJK) Website [...]
    June 17, 2025
  • ENVEX2025 Exhibitor Information

    Meet the future of innovative decanter centrifuge technology We invite you to the exhibition! Dear water industry stakeholders, RK, a leading innovator in the water industry, invites you to a special exhibition at COEX L-13 from Wednesday, June 11th to Friday, June 13th. At this exhibition, we will be exhibiting our highly efficient decanter centrifuges that incorporate our unique technology. Our decanter centrifuges, which will contribute to solving environmental problems and increasing resource efficiency, are already used in many industrial [...]
    August 10, 2025
  • Centrifuge Redesign 3D Contest Announcement

    https://www.loud.kr/contest/view/170083 👆👆👆 View the crowdsourcing contest (designer account required)👆👆👆 👆👆👆 Greetings - Why are you starting a project? Hello, we are a dehydrator development company. For those who work in the water industry, dehydrator is a common term, but for those who don't, it may be unfamiliar. We are a Korean company with a factory in Vietnam that develops various types of dehydrators, which are devices for dehydrating sewage and wastewater in the water industry. Currently, as a carbon reduction project, we are combining decanter centrifuges with FRP in addition to the existing stainless steel [...].
    August 10, 2025
  • We wish you a happy Lunar New Year holiday.

    Hello, dear RK family! 🎊 On the occasion of the Chinese New Year 2025, we would like to extend our heartfelt greetings to you. We would like to express our deepest gratitude to everyone who has been with us in the past year. Just like the dehydrator we developed for water treatment, we hope this year will be a year where the unnecessary things in your life are cleanly dehydrated and only the pure and valuable things remain. 💧✨ Chinese New Year is a holiday for sharing precious time with family and friends, and with the busy [...]...
    August 10, 2025
  • Greetings from the year 2025

    Dear Customers, Greetings from all of us at ARK on the occasion of the year 2025. The year 2024 was a year in which the Korean water industry made a significant leap forward. Overseas exports through the Korea Environment Agency's water cluster reached KRW 109.3 billion, a remarkable achievement, and the overall growth rate of the industry remained stable at 2.91 TP3T. In particular, as long as digital transformation accelerated across the water industry and eco-friendly solutions were actively developed to respond to climate change, [...]
    August 10, 2025
  • Vietnam Water 2024, a review

    Hello, I'm Sohee Jeon, a public relations manager at ARK, and I'd like to share my experience of VIETWATER2024, which took place last week from the 6th to the 8th. Held at the Saigon Exhibition & Convention Center (SECC), it was a meaningful event that made us realize how deep and important the water industry is in Southeast Asia. Water is a food and energy resource that can sustain irreplaceable life energy called ‘WATERGY‘ in the future. On the other hand, after extreme weather events, we are affected by heavy rainfall flooding in an unpredictable short time. In this [...]
    August 10, 2025
  • VIETWATER2024 (Booth: K-24)

    Hello, this is RK. We are participating in the historic VIETWATER event. We will participate in VIETWATER 2024, Vietnam's largest water industry exhibition. VIETWATER is Vietnam's largest water industry exhibition, showcasing the latest solutions and products in water management, water treatment, and environmental technology. The annual event gathers companies and professionals from around the world to discuss sustainable water management, water recycling, wastewater treatment, and [...]
    August 10, 2025
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    AAK Feature Article <Electronic Newspaper

    [Going to the National Product Industry Cluster] [3] ’Overseas Performance Evaluation‘ Paves the Way for Chinese Companies to Export The National Product Industry Cluster is pioneering overseas sales for its resident SMEs through the ‘Overseas Performance Evaluation' program. It identifies companies that have excellent technology but have difficulties in developing overseas sales. It verifies product performance at the demonstration plant and provides the results to overseas customers to increase reliability and conduct 'third-party performance verification'. Water companies such as CJK and ARK were selected in 2022 and last year through open recruitment followed by expert evaluations, and [...]
    November 3, 2025

Brochure about ARK’s products
(in Korean language)

ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses

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