What dango und dienenthal does

DANGO & DIENENTHAL Filtertechnik GmbH, headquartered in Siegen, Germany, is the filtration division of the 160+ year old DANGO & DIENENTHAL Group (founded 1865) and supplies industrial liquid filtration systems and solid-liquid separation equipment to heavy-industry customers worldwide. The company serves steel mills, power plants, chemical facilities, wastewater treatment plants, food processors, building services operators, and geothermal/offshore installations across subsidiaries and partners in nine countries (Germany, South Africa, USA, India, Japan, China, Russia, Mozambique, Sweden, Netherlands).

The product portfolio centers on automatic filters (Filterautomat, Backwash Drum Filter RTF-HP and S, JET Filter and JET Filter S, Plate Filter), manual filters (Single, Duplex, Bag filters, SCHLAMMCON sludge dewatering), and centrifugal Separators using a proprietary Turbospirale inlet. Differentiated technologies include the patented JET Filter (no moving parts, Bernoulli-principle inline filtration), the proprietary MUSSEL STOP system for mussel and larvae infestation protection, and 5-micron precision fine filtration in the RTF-HP. Automatic units exchange control signals (collective fault, operational readiness, flush mode, external trigger) with customer process control systems for continuous 24/7 operation.

The business model is direct enterprise B2B sales with project-based, quote-driven pricing, supplemented by a service revenue stream that includes preventive maintenance, spare parts, operational safety inspections, and retrofit programs extending filter life by 5–8 years. Hardware ASPs are high-ticket, low-volume, with multi-year contract cadences typical of industrial capital equipment. Distribution is handled through group-owned subsidiaries and direct field sales rather than third-party resellers, and the company actively prospects at major trade shows (Aquatech, AISTech, Tube). The filter division operates within a larger diversified group that also encompasses HENCON (specialty vehicles) and the TMT joint venture with PAUL WURTH (tapping/measurement technology), but the filter business itself is the primary focus of analysis here.

Name

dango und dienenthal

Legal name

DANGO & DIENENTHAL Management GmbH

Website

https://dds-filter.com

Company type

Private

Founded year

1865

Operating status

Operating

Headcount range

11–50 employees

Short description

DANGO & DIENENTHAL Filtertechnik supplies industrial liquid filtration systems — automatic and manual filters plus centrifugal separators — to steel, chemical, power, water, and food processors across nine countries, leveraging 80+ years of German filtration engineering and a direct enterprise sales model.

Ownership category

akta.pro rank

Product category

Industrial Filtration Equipment

NAICS

Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914)

akta.pro primary industry

Separation & Filtration Equipment (Filters, Centrifuges, Membranes) (IMAHAEAB)

Keywords

• Industrial filtration systems
• Water treatment filters
• Solid-liquid separation
• Automatic backwash filters
• Centrifugal separators

Headquarters

HQ city

Siegen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Industrial Filtration Equipment Sales: Sale of automatic and manual filter systems as well as separators for filtering cooling, river and process water. Products include Filterautomat, Backwash Drum Filter, JET Filter, Plate Filter, Single/Duplex/Bag Filters, and Separators. Revenue is generated through direct B2B sales to industrial customers.
2. Service, Maintenance & Retrofit: Professional repair, preventive inspection and maintenance, spare parts supply, operational safety inspections, and retrofit programs for older filter units. Retrofit services extend filter life by 5-8 additional years with comprehensive refurbishment packages.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

DANGO & DIENENTHAL Filtertechnik GmbH manufactures and sells industrial liquid filtration systems and separators for solid-liquid separation. The portfolio spans automatic filters (Filterautomat, Backwash Drum Filter, JET Filter, Plate Filter), manual filters (Single, Duplex, Bag Filters, Sludge Dewatering Device), and centrifugal separators, along with service, maintenance, and retrofit programs. Products are built for continuous 24/7 filtration of river water, cooling water, and process water across heavy industry.

Product overview

DANGO & DIENENTHAL Filtertechnik GmbH offers a comprehensive portfolio of industrial liquid filtration systems and separators for solid-liquid separation, marketed under the 'DANGO & DIENENTHAL Filtration Technologies' brand. The product range includes automatic filters (Filterautomat, Backwash Drum Filter HP, Backwash Drum Filter S, JET Filter, JET Filter S, Plate Filter) and manual filters (Single Filter, Duplex Filter, Bag Filter, SCHLAMMCON Sludge Dewatering Device), as well as industrial Separators with centrifugal separation. The portfolio spans coarse and fine filtration down to 1 micrometer, with specialized offerings such as the MUSSEL STOP system for mussel infestation protection. The company also provides complementary services including Retrofit & General Overhaul (extending filter life by 5–8 years) and Service & Maintenance programs. The automatic filters feature electrical control systems that exchange signals (collective fault, operational readiness, filter in flush mode, external trigger/release) with customer-side Process Control Systems (PLS). The products are designed for continuous 24/7 operation filtering river water, cooling water, process water, and other liquid media across industries including steel, paper, power plants, chemical, wastewater treatment, building services, geothermal/offshore, food, drinking water, and irrigation.

Differentiator

Problem solved

Functional benefit

Products and services

• Filterautomat Extremely robust automatic filter with rotating filter drum that evenly distributes accumulated solids across the entire filter surface for continuous backflush filtration. Used in heavy industrial applications including steel, chemical, and power plants.
• Backwash Drum Filter HP High-performance automatic backwash drum filter for the most difficult media, based on the filtration/backflush principle of the Filterautomat with individual material selection for challenging fluids. Removes particles down to 5 microns.
• Backwash Drum Filter S Compact automatic filter for the most difficult media, featuring excellent backwash performance and compact design with individual material selection. Designed for space-constrained industrial installations.
• JET Filter Automatic inline filter with patented design containing no moving parts. Enables very high throughput volumes, material variety, and flexible pipe installation using Bernoulli principle for filtration at axial flow velocities of 5-7 m/s.
• JET Filter S Compact automatic filter without moving parts, delivered as a ready-to-use module with electronic control. Filter element can be exchanged without removing the filter from the pipeline.
• Plate Filter Massive inline filter for coarse filtration with an obliquely seated filter plate. Supports both manual and automatic backflush operation.
• Single Filter Manual filter with reusable filter basket. Compact inline design with opposing inlet/outlet flanges for simple integration into existing industrial filtration systems.
• Duplex Filter Manual filtration with manual switching for continuous operation. Two filter units with integrated switching valve allow cleaning one filter while the other remains in service, minimizing downtime.
• Bag Filter Manual filtration down to 1 micrometer. Available in single-basket (EFB-S) and multi-basket (EFB-M) configurations for demanding applications with high filtration accuracy and large filter area.
• SCHLAMMCON Sludge Dewatering Device Sludge dewatering device for backwash water treatment. Coarser particles are retained inside a filter box bag, and the fold-open bottom allows clean disposal of the full filter bag.
• Separator Filter with centrifugal separation using a turbospiral in the inlet that sets the volume flow into a rotational motion. Separates specifically heavy particles (above 1.3 kg/dm³) via centrifugal forces, protecting downstream filter systems.
• Retrofit & General Overhaul Service Complete technical refurbishment of older DANGO & DIENENTHAL automatic filters, restoring 5-8 additional years of reliable operation with original manufacturer quality. Extends filter life in older units.
• Service & Maintenance Professional repair, preventive inspection and maintenance, spare parts supply, operational safety inspections, and retrofit programs for older automatic filters.

Quantifiable outcome

• Extended equipment lifespan: Mechanical seal life extended by up to 50%, pump lifespan increased by up to 5 years
• +4 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• TMT - Tapping Measuring Technology (Joint Venture with PAUL WURTH)coreStrategic or Co-development Partner · 1 January 2003TMT is a joint venture between DANGO & DIENENTHAL in Siegen and PAUL WURTH in Luxembourg, established in 2003. The company specializes in tapping and measuring technology for blast furnaces and non-ferrous metal melting furnaces. TMT operations span Germany, Luxembourg, and China.
• HENCONcoreStrategic or Co-development PartnerPart of the DANGO & DIENENTHAL Group family alongside DANGO & DIENENTHAL and TMT. Hencon is a technology leader in advanced specialty vehicles for light metal industry, mining, and vacuum technology, as well as forestry machines and service.
• Erich Rottmann TechnikminorChannel Partner/ Reseller/ DistributorRegional partnership to strengthen presence in Northern Germany for sales and service of filtration products.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Pall Corporation (Danaher): Global filtration leader offering industrial liquid filtration and separation solutions across chemical, energy, and water — a much larger incumbent competing on enterprise accounts with broader technology breadth than Dango & Dienenthal.
• Andritz Separation: Austrian technology group supplying solid-liquid separation equipment (centrifuges, filters, separators) to chemical, food, mining, and environmental industries — overlapping directly with Dango & Dienenthal's separation and process-water business.
• Mahle Industrial Filtration (now part of Hengst): European industrial filtration manufacturer offering automatic filters and coolant-treatment systems for metalworking, power, and process industries — comparable technology stack and customer base to Dango & Dienenthal's industrial filtration portfolio.
• Eaton (Filtration Division): US-based industrial conglomerate with a substantial filtration division serving hydraulics, process liquids, and water treatment — overlapping with Dango & Dienenthal's process-water and cooling-water applications at a much larger global scale.
• Donaldson Company: US-based manufacturer of filtration systems across industrial liquids, compressed air, and hydraulics — a global incumbent whose industrial-liquid filtration line competes with Dango & Dienenthal at enterprise customers.
• Alfa Laval: Swedish multinational with a major industrial filtration portfolio including separators, decanters, and filtration modules serving chemical, food, water, and energy — broader and larger-scale competitor with overlapping centrifugal-separation technology.

Direct peers

• Boll & Kirch Filterbau: German manufacturer of industrial liquid filtration systems (automatic backwash filters, duplex filters, separators) for power, chemical, marine, and water applications — the closest direct competitor to Dango & Dienenthal Filtertechnik in European industrial filtration.
• Amiad Water Systems: Israeli filtration specialist supplying automatic self-cleaning filters and microfiber systems for industrial, irrigation, and municipal water — comparable product overlap in automatic backwash filtration for cooling and process water.
• HYDAC International: German hydraulic and process-filtration specialist with strong direct presence in steel, power, and marine — comparable European industrial-filtration OEM competing head-to-head in cooling-water and process-water applications.

Emerging players

• Filtermist International: UK-based manufacturer of oil-mist and air-filtration equipment — partial overlap as an industrial-filtration specialist competing for plant-level filtration budgets, though focused on air-side applications rather than liquid.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@dangodienenthalmaschinenba9682
• LinkedInlinkedin.com/company/dango-dienenthal
• Instagraminstagram.com/dango_dienenthal

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about dango und dienenthal