Turned seals, CNC lathes and semi-finished materials for seal manufacturing from Traboch, Austria.

DMH Dichtungs- und Maschinenhandel GmbH

Traboch (AT)New on Amplifa

Freudenberg FST GmbH (since 28.10.2025)Parent company

Traboch, AustriaLocation

ISO 14001Certification

About DMH

DMH Dichtungs- und Maschinenhandel GmbH, headquartered in Traboch, Austria, specializes in sealing technology. Under the DMH product brand, the company offers finished turned seals, CNC lathes including software for seal production, as well as semi-finished materials and add-ons for seal manufacturing. In addition, the company manufactures parts and components for sealing technology and offers technical service as well as GMP-compliant production. The proprietary DMH seal turning lathe series, most recently with the DMH 2500 model, is in use worldwide. As of 28 October 2025, the DMH Group was acquired by the Freudenberg Group and has since been part of Freudenberg Sealing Technologies; operations continue unchanged. From Traboch, DMH supplies customers in Europe, North and South America, Asia, Africa and the Middle East.

Site: Traboch
Processes: Seal turning (turned seals from the DMH brand), Manufacture of parts/components for sealing technology, Turnable seals (DMH seals), CNC lathes incl. software for seal production, Semi-finished materials for seal manufacturing, Parts, Add-ons, Technical service
Materials: HGW Guide Materials
Certificates: ISO 14001, GMP-compliant production
Industries: Sealing technology, Plastics processing, Industry, Plastics processing (K Fair Düsseldorf), Industry/Innovation (Hannover Messe)

01
Semi-finished material production
02
CNC turning of seals and parts
03
Machine and software development
04
Technical service
05
Sales and export

Products & Materials

HGW

HGW Guide Materials

Semi-finished materials from the DMH series for seal manufacturing.

Locations

Traboch

Headquarters, production and administration

Materials: Semi-finished materials, turned seals, parts

DMH 2500 Seal Turning Machine
DMH 500 Seal Turning Machine

Parts & Seals

**DMH Seals**CNC turning · Sealing technology

**DMH Parts**Machining · Sealing technology

Inside the production

Industries

Sealing technologyPlastics processingIndustryPlastics processing (K Fair Düsseldorf)Industry/Innovation (Hannover Messe)

Processes & technical limits

Processes	Tolerance	Max. part	Weight	Lot size	Materials
Seal turning (turned seals from the DMH brand)Machining	–	–	–	–	–
Manufacture of parts/components for sealing technologyMachining	–	–	–	–	–

1 Anlagen & Maschinen

Machine	Manufacturer / model	Quantity	Working area	Year built	Site
CNC lathe (Seal Turning Machine)	DMH DMH 2500	–	–	–	Traboch, Austria

Additional services

Turnable seals (DMH seals)CNC lathes incl. software for seal productionSemi-finished materials for seal manufacturingPartsAdd-onsTechnical serviceShop/sale of catalogs and price listsGMP-compliant production

Reference customers

Freudenberg FST GmbH (subsidiary since 28.10.2025)Liderseal (sales partner, Portugal)

Quality

DMH manufactures in a GMP-compliant production facility and is certified to ISO 14001.

Evidence	Traboch
ISO 14001
GMP-compliant production

History

2023
Presence at the Hannover Messe and K 2022 in Düsseldorf; presentation of the DMH 2500 turning machine and the HGW guide materials
2024
ISO 14001 certification achieved, GMP-compliant production facility commissioned, new tool systems and sustainable energy generation
2025
Stars of Styria 2025 award; DMH becomes part of Freudenberg Sealing Technologies
2025-10-28
Acquisition of the DMH Group by the Freudenberg Group; business operations continue