What Curt Ebert Siebtechnik does

Curt Ebert Siebtechnik GmbH is a Dortmund-based German manufacturer of industrial metal screens and sieves (Industriesiebe) used for material separation, classification, and filtration in industrial production processes. Founded in 1920 and integrated into the Dorstener Drahtwerke (DDD) Group since 2008, the company operates as a family-managed specialty manufacturer (11-50 employees) producing custom-made-to-order screen floors across three main families — Gewebe-Siebböden (woven mesh), Gitter-Siebböden (grid screens), and Harfen-Siebböden (harp screens) — plus the OPTISCREEN PUR-bonded harp line, polyurethane (PU) screens, perforated plates (Siebbleche), tensioning clips (Spannfalze), and specialty carrier/support nets (Tragnetze) for catalytic nitric acid production.

The company's core technology centers on proprietary wire geometry and bonding methods designed to prevent clogging (blinding) under difficult feedstock conditions, including wet, sticky, clayey, or fine-grained material. Differentiated designs such as VARIA-Harfe, OPTISCREEN HS/HSP/PIANO-Harfen, W-Harfen, G-Harfen, S-Harfen, RUNDRA, and PS-Gitter employ techniques such as undulated longitudinal wires with PUR crossbars, press-welded wire intersections, and elastic wire movement to maintain clear openings during vibration. Products are offered in stainless steel, spring steel, and specialty alloys (including NiCr 8020 and NiCrSi 3616 for nitric acid service) and are manufactured to customer drawings, samples, or technical specifications.

Curt Ebert generates revenue through one-time sales of custom industrial screens, supplemented by recurring professional services including Siebspannservice (screen tensioning for round and rectangular machines, including OEM brands Sweco, Engelsmann, Allgaier, Russel, and Telsonic) and on-site Einbau von Siebböden (screen installation). Go-to-market is sales-led via direct phone and email consultation, supported by an exclusive customer webshop for stock visibility and trade show presence (Solids Dortmund). The customer base spans German construction materials (Steine & Erden), international nitric acid plants across ~10 countries, glass recycling (including PV modules), and a long tail of chemical, food, pharmaceutical, coatings, and environmental industry buyers. Pricing is not publicly disclosed and is quote-based.

Name

Curt Ebert Siebtechnik

Legal name

Curt Ebert Siebtechnik GmbH

Website

https://curt-ebert-siebtechnik.de

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

11–50 employees

Short description

Curt Ebert Siebtechnik is a 105-year-old Dortmund-based German manufacturer of custom industrial metal screens and sieves — including wire mesh, harp screens, PU screens, and perforated plates — used for material separation, classification, and filtration in construction materials, nitric acid, glass recycling, and chemical processing industries.

Ownership category

akta.pro rank

Product category

Industrial Screening Equipment

NAICS

Other Fabricated Metal Product Manufacturing (3329), All Other Fabricated Metal Product Manufacturing (33299)

SIC

Miscellaneous Fabricated Metal Products (3490), Sheet Metal Work (3444)

akta.pro primary industry

Screening & Sizing Equipment (IMAHAMAG)

Keywords

• Industrial screening equipment
• Wire mesh screens
• Vibrating screen fabrics
• Perforated metal plates
• Polyurethane screens

Headquarters

HQ city

Dortmund

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Others

Revenue model

1. Custom Industrial Screen Manufacturing: Manufacturing and sale of custom-made metal industrial screens (Industriesiebe) including wire mesh screens, harp screens, polyurethane screens, perforated plates, and tensioning frames. Products are manufactured to customer drawings, samples, or technical specifications. Both single-piece custom orders and series production.
2. Siebspannservice (Screen Tensioning Service): Professional screen tensioning and frame preparation service for round and rectangular screening machines, including re-tensioning of customer-owned screens.
3. Siebboden-Einbau (Screen Installation Service): On-site installation service for screen floors, including inspection, cleaning, tensioning, and re-tensioning guidance for industrial screening machines.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Curt Ebert Siebtechnik manufactures custom and series-produced industrial metal screens (Industriesiebe) — including woven, grid, and harp-type screen floors, polyurethane screens, perforated plates, and tensioning clips — for material separation, classification, and filtration in industrial processes. The company also provides screen tensioning and on-site screen installation services for round and rectangular screening machines.

Product overview

Curt Ebert Siebtechnik is a manufacturer of industrial metal screens and sieves for separation, classification, and filtration processes. The product portfolio comprises three main screen floor categories (Gewebe-Siebböden, Gitter-Siebböden, and Harfen-Siebböden), the OPTISCREEN product line with PUR-bonded harp screens, PU polyurethane screens, perforated Siebbleche plates, Spannfalze tensioning clips, and specialty Tragnetze nets for nitric acid production. These products are complemented by installation (Einbau von Siebböden) and screen tensioning (Siebspannservice) services. The screens are offered in various materials including stainless steel, spring steel, and special alloys, and are used across industries including mining, construction materials, glass recycling, and chemical processing.

Differentiator

Problem solved

Functional benefit

Products and services

• SCHWING-Gewebe (Swing Mesh)
• LANGMA-SCHWING-Gewebe (Long-Mesh Swing Mesh)
• WESPA-SCHWING-Gewebe (Wave Wire Swing Mesh)
• RUNDRA-Siebböden
• PS-GITTER-Siebböden (Press-Welded Grid Screens)
• W-Harfen (W-Harps)
• G-Harfen (G-Harps)
• VARIA-Harfen (VARIA Harp Screens)
• S-Harfen
• OPTISCREEN HS-HARFEN
• OPTISCREEN HSP-HARFEN
• OPTISCREEN PIANO-HARFEN
• PU-Siebe (Polyurethane Screens)
• Siebbleche (Perforated Plates / Lochplatten)
• Spannfalze (Tensioning Clips)
• Tragnetze und Unterlagnetze (Support and Carrier Nets)
• Siebspannservice (Screen Tensioning Service)
• Einbau von Siebböden (Screen Floor Installation Service)

Named customers3 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Dorstener Drahtwerke (DDD) GroupcoreStrategic or Co-development PartnerCurt Ebert Siebtechnik is integrated into the Dorstener Drahtwerke (DDD) Group — a global network of specialized companies in wire and its diverse applications. Production facilities span Europe, North and South America, and Asia. The integration since 2008 has supported product development and delivery standards, transforming Curt Ebert into a global player in the screening industry. The company relocated in 2008 from Brackel to its current Dortmund-Körne location as part of this integration.
• DSIV - Deutscher Schüttgut Industrie Verband e.V.minorOthersMember of the German Bulk Solids Industry Association. Logo displayed on company website as a membership badge.
• vero - Verband der Bau- und Rohstoffindustrie e.V.minorOthersMember of vero - the construction and raw materials industry association. Logo displayed on company website as a membership badge.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Russell Finex: Global manufacturer of industrial sieves, vibratory screeners, and filtration equipment. Directly competes with Curt Ebert in fine-mesh separation, custom screen manufacturing, and aftermarket re-tensioning/mesh replacement services.
• Schenck Process (FLSmidth Schenck Process): Major supplier of screening, feeding, and material handling equipment for bulk solids industries. Overlaps with Curt Ebert in industrial screening solutions for aggregates, mining, and chemical customers.
• SWECO (a subsidiary of L.B. Foster / formerly of M-I SWACO): Leading manufacturer of industrial vibratory screening equipment and replacement screens. Curt Ebert's Siebspannservice explicitly serves SWECO screening machines, indicating direct market overlap and technical compatibility.
• Hein, Lehmann Trenn- und Fördertechnik GmbH: German manufacturer of screening media, vibrating screens, and separation/ conveying equipment. Directly comparable to Curt Ebert in metal wire screen floors and harp screens for aggregates and bulk solids processing.
• GKD – Gebr. Kufferath AG: German manufacturer of woven metal mesh, screen fabrics, and process belt solutions serving filtration, screening, and architectural applications. Closely comparable as a German Mittelstand specialty weaver of industrial screens with similar end-markets.
• A. Jöst GmbH & Co. KG: German specialist in vibrating machines, screening equipment, and screen media for bulk solids. Closely comparable German Mittelstand peer competing in similar aggregates, recycling, and chemical applications.
• Haver & Boecker (W.S. Tyler): German-founded global manufacturer of wire cloth and industrial screening media. W.S. Tyler is its North American brand. Directly comparable to Curt Ebert in woven wire mesh, screen panels, and vibrating-screen consumables serving mining, aggregates, and chemical customers.

Broad incumbents

• Metso: Global leader in mining, aggregates, and metals processing equipment, including vibrating screens and screening media. A larger incumbent where Curt Ebert competes as a specialty screen-media supplier into the same end customers.
• Sandvik Mining and Rock Solutions: Global mining and rock processing equipment OEM offering screens, screen media, and aftermarket wear parts. Curt Ebert sells into the same mining/quarry customers as consumable supplier.

Others

• Dorstener Drahtwerke (DDD Group, parent): Curt Ebert's parent group, a global network of wire-application companies. Listed as peer because the broader DDD portfolio includes wire weaving, filtration, and architectural mesh capabilities that overlap Curt Ebert's core competency and could serve as both internal supply and competing options for shared customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Curt Ebert Siebtechnik