Railway Technology is using cookies

We use them to give you the best experience. If you continue using our website, we'll assume that you are happy to receive all cookies on this website.

ContinueLearn More X

Goldschmidt Thermit Group Rail Joining, Rail Services, Measurement, Tools and Machines, and Equipment

Rail Joining, Rail Services, Measurement, Tools and Machines, and Equipment

Goldschmidt Thermit Group is an international, family-run group, comprising 24 medium-sized companies. With expertise spanning over 120 years, we are a world-renowned supplier of products and services for the construction, renovation, modernisation and intelligent predictive maintenance of railway tracks.

Whether high-speed, heavy haul, cargo, trams or subways, with our unique range of products and services, continuous research and development, we guarantee our customers that we will understand and fulfill their needs and expectations.

Goldschmidt’s research and development is advancing the digital work site. A growing number of processes and tools will be connected to communicate intelligently with each other for optimal precision, quality, efficiency and comfort for construction and maintenance.

The new Cloud-based Data Acquisition for Rail Infrastructure (DARI®) offers automated documentation of welding and measuring processes, as well as customer-specific data evaluation.

Rail joining:

  • Thermit welding
  • Thermit portions and consumables for Thermit welding
  • Arc welding
  • Fishplates and insulated rail joints (steel, polymer composite)

Rail services:

  • Joint welding of rails and switches
  • Grinding work
  • Intelligent predictive maintenance for rails and switches
  • Weld-tempering of new rails
  • Ballast stabilization


  • Long / short-time stress measurements and stress-free temperature
  • Longitudinal and cross-section as well as rail surface roughness measurements
  • Track position and stability measurements
  • Track geometry testing and switch inspections
  • Measurement of turnout systems
  • Ultrasonic testing and inspections
  • Bridge and component testing
  • Calibration and maintenance service

Tools and machines:

  • Tools and machines for track constructions and track maintenance
  • Special equipment for the Thermit welding process
  • Hydraulic power units for various industries
  • Road-rail vehicles


  • Switch heating
  • Rail lubrication systems
  • Magnetic barriers

Welding processes for railways

Thermit safely and quickly connects rails of all profiles with various Thermit welding processes, which are suitable to specific customers. Implementation is characterized by very low demands in time, material and manpower, and offers the highest standards of quality and reliability. The significant applicability and mobility of this method means that welding can proceed under traffic.

Insulated rail joints

We provide insulated rail joints (steel and polymer composite) that are either assembled in workshops or installed in position on the track. Today’s signaling and security technology at railways predominantly works with track electric circuits, where the rail assists as electrical conductor. At the demarcation point (block section) of the track circuits, the rail is interrupted by insulated fishplate joints, which is why the signal block sections of the track are marked off to each other.


We offer products and services for measuring stress-free temperature, track geometry parameters, straightness, surface conditions, position and stability. A constant and cost-effective maintenance management enables the highest driving comfort, as well as maximum track safety and availability to railway companies.

Using the most advanced devices and latest technologies, we carry out most various measuring tasks and special work assignments, complemented by a broad and application-specific range of measuring devices.

Weld-tempered rails

We can offer hardening and tempering of new rails according to customer specific requirements. The gauge corner, gauge face and running surface of rails are weld-tempered by milling the rail and applying new wear-resistant weld material to rebuild the section.

This method secures a significant reduction in lateral and vertical rail wear and ensures safety of traction operations in the long term. Additionally, noise emissions are minimized, while maintenance costs are reduced thanks to the extended lifespan of both the rail and the entire superstructure.

Intelligent predictive maintenance for rails and switches

Professional maintenance is an important preventive measure against wear due to heavy rail traffic and serves to sustainably lengthen the service life of rails and switches in subway systems, tramways, light rail and mainline networks.

This means you work more efficiently and your network runs safely, reliably and according to schedule. Thanks to our highly mobile equipment, our teams are particularly flexible; they are able to manage welding and grinding work on existing rails, where access can be difficult – quickly and efficiently.

Hydraulic power units

Goldschmidt Thermit Group is with its group company PortaCo, Inc., one of the largest manufacturers of portable hydraulic power units. We build quality and safe standard hydraulic power units and custom designs in many styles and sizes. We manufacture for Original Equipment Manufacturers and distributors internationally.

About Goldschmidt Thermit

The history of the Goldschmidt Thermit Group dates back to 1847 when the company Theodor Goldschmidt AG was founded. In 1895, Prof. Hans Goldschmidt invented the Thermit welding method, an aluminothermic process that enables sections of rail track to be welded together continuously. This marked the beginning of modern rail transport.

In the following years, various partner companies were founded around the world, giving rise to a group that today boasts almost 1,000 employees in 20 countries.

Certificates and approvals of our companies include quality management certification according to ISO 9001:2015 and AAR M-1003, environmental management system according to ISO 14011:2015, approval by all major railway companies in more than 80 countries and approval as a Q1 supplier for Deutsche Bahn AG.

Make an enquiry

Press Release

Goldschmidt Thermit Group Continues Successful Expansion

In the financial year of 2018, Goldschmidt Thermit Group increased its global sales revenue by 17% to reach €185m.

White Papers

Construction, Repair and Maintenance of Railway Tracks

Whether for high-speed, cargo, heavy haul, tram or underground: as a worldwide recognised and proven supplier, we offer products and services to meet every railway need in the areas of rail joining, rail services, measurement, tools and machines, and equipment.

Goldschmidt Thermit GmbH

Finance and Management Holding of Goldschmidt Thermit Group

Hugo-Licht-Str. 3

04109 Leipzig


+49 341 355 918 0 +49 341 355 918 99 www.goldschmidt-thermit.com

Goldschmidt Thermit Group Images

Products and Services


Press Release

11 June 2019

In the financial year of 2018, Goldschmidt Thermit Group increased its global sales revenue by 17% to reach €185m.

Read more
7 November 2018

Goldschmidt Thermit Group has expanded its product range in the area of measurement technology for the railway sector, continuing its global growth strategy.

Read more
15 June 2017

The Goldschmidt Thermit Group based in Leipzig continues to pursue its expansion strategy and has further extended its product range through acquisitions.

Read more
24 August 2016

The Goldschmidt Thermit Group based in Leipzig, Germany is expanding in Scandinavia. The global leader for continuous joint welding and the maintenance and repair of rail systems has acquired SRS Sjölanders based in Osby, Sweden.

Read more
18 August 2016

In the morning, representatives of the Goldschmidt Thermit Group and the Leipziger Verkehrsbetriebe (local transport company) christened a special machine for grinding rails with the name Leipzig.

Read more
23 February 2016

On 9 December 2015 the new high-speed intercity connection between Erfurt and Leipzig / Halle was inaugurated.

Read more
16 February 2016

The Goldschmidt Thermit Group based in Leipzig, Germany continues to expand. The leading global company for joint welding and servicing and maintenance of rail systems has now founded a subsidiary in the Polish city of Toruń, north-west of Warsaw. The target is to expand the group's activities in the growing infrastructure market of Eastern Europe.

Read more
7 May 2015

Goldschmidt Thermit Group held a large inauguration celebration for the Technology Innovation Center (TIC) of the company group in Leipzig. The leading global company for the continuous welding and repair and maintenance of rails will integrate its global R&D activities in the TIC.

Read more
17 March 2015

The Goldschmidt Thermit Group continues to grow. In the business year for 2014 the joint welding, maintenance and repair of rail systems company increased its turnover by 12% to 127 million euros.

Read more
11 March 2015

Many inventions can be traced back to the scientific curiosity of Prof. Hans Goldschmidt. His most important invention was patented 120 years ago. The THERMIT® process turned out to be a major advance in the development of rail traffic because the process enabled the continuous welding of rail joints for the first time. Today the Goldschmidt Thermit Group is the global market leader for rail joining and thanks to its continued innovative drive is a recognized and successful global supplier of products and services for rails.

Read more
20 March 2014

The precise measurement of rails has now become simpler. TheAppGuys has developed an app especially tailored to meet the needs of the Goldschmidt Thermit Group which can be used to control RAILSTRAIGHT precision measuring devices for measuring straightness and corrugations in rails and rail joints on-site via smartphones.

Read more
9 October 2013

The Marmaray tunnel in Istanbul will be officially opened on 28 October 2013, by Recep Tayyip Erdoğan, the Turkish Prime Minister. This historical tunnel project under the Bosporus will directly connect the railway networks of Asia and Europe for the first time. The infrastructure project consists of the 13.6km tunnel and also the development and modernization of 63km of existing railway lines, three new railway stations underground and the modernization of 37 further railway stations.

Read more
23 September 2013

Railway Interchange 2013 will be held in Indianapolis, Indiana, US, on 29 September through 1 October 2013. The event features combined exhibitions by members of the North American Railway Supply Institute (RSI), the Railway Engineering-Maintenance Suppliers Association (REMSA), Railway Systems Suppliers, Inc. (RSSI) along with conference programs by AREMA the American Railway Engineering and Maintenance of Way Association.

Read more
17 September 2013

The development of the public transport network undoubtedly has a positive effect on the environment and society. In light of this and as part of the European Mobility Week (16-22 September 2013) the Goldschmidt Thermit Group supports the campaign of the International Association of Public Transport (UITP) which is designed to strengthen public transport networks worldwide.

Read more
6 August 2013

The Goldschmidt Thermit Group is continuing its international expansion and is developing its existing presence in the North American market. On 1 August 2013, Goldschmidt Thermit Group, the global leader in Thermit welding and services for the repair and maintenance of rail systems for Transits and Main Lines acquired 100% of the shares of PortaCo, Inc., a producer of hydraulic power units and tools, headquartered in Moorhead, Minnesota.

Read more
22 May 2013

During the International Exhibition for Track Technology from 28 to 30 May 2013 in Münster, Germany, the Goldschmidt Thermit Group will present its SMARTWELDCONTROL.

Read more
21 May 2013

The Goldschmidt Thermit Group will present its RAILSHAPEMASTER for the first time at the International Exhibition for Track Technology from 28 to 30 May 2013 in Münster, Germany.

Read more
23 April 2013

Rail and wheel wear is a cost-intensive problem of all railway operators. With the new TRACKSAFELUBE the Goldschmidt Thermit Group is able to offer a product that reduces the rail and wheel wear up to 80% and noise up to 20db.

Read more
15 April 2013

Rail grinding is one of our core competences in Europe. Our modern track grinding trains remove corrugations and short waves, re-profile the running surface and running edges and derust rails prior to commencing operation.

Read more

Regional Offices

Goldschmidt Thermit GmbH

Finance and Management Holding of Goldschmidt Thermit Group

Hugo-Licht-Str. 3

04109 Leipzig


+49 341 355 918 0 +49 341 355 918 99 www.goldschmidt-thermit.com
Elektro-Thermit GmbH & Co. KG

Chemiestr. 24

06132 Halle (Saale)


+49 345 7795 600 +49 345 7795 770 www.elektro-thermit.de
Form-Thermit Spol s.r.o.

Gromešova 6a

62100 Brno

Czech Republic

+420 541 226 329 +420 541 321 515 www.goldschmidt-thermit.com
Goldschmidt Thermit Railservice GmbH

Niederlassung Essen

Rotthauser Str. 142

45309 Essen


+49 201 74796 0 +49 201 74796 62 www.gt-railservice.com
Goldschmidt Thermit Railservice (France) Sarl

12 rue du Bois du Pont, Lot N° 27 Z.A. des Béthunes

95310 Saint-Ouen-l’Aumône


+33 1 34 64 12 88 +33 1 64 24 03 91 www.gt-railservice.com
Goldschmidt Thermit Railservice (Österreich) GmbH

Erlaaer Straße 161

1230 Wien


+43 1 6677531 0 +43 1 6677531 55 www.gt-railservice.com
Goldschmidt Thermit Railservice (Schweiz) GmbH

c/o Aeberli Treuhand AG Zimmergasse 17 Postfach CH-8034 Zürich


+41 44 2656651 +41 44 2656699 www.gt-railservice.com
Goldschmidt Thermit GmbH Oficina Ibérica

Carretera de Fuencarral, 44 – Edificio 7 – Loft 20

28108 Alcobendas – Madrid


+34 (0) 663 941 573 www.goldschmidt-thermit.com

Radishcheva 19, Pushkin Saint- Petersburg 196602


+7 812 454 10 36 +7 812 454 10 36 ext. 104 www.gt-ats.ru
MÁV-Thermit Kft.

Tolmács u. 18

2030 Érd


+36 23 521450 +36 23 521460 www.mav-thermit.hu
Thermit Italiana s.r.l.

Via Sirtori, 11 20017 Rho Milano


+39 02 93180932 +39 02 93501212 www.thermit.it
Thermit Welding (GB) Ltd.

87 Ferry Lane


Essex RM13 9YH

United Kingdom

+44 1708 522626 +44 1708 553806 www.thermit-welding.com
Thermit Welding Services

Downing Road West Meadows Industrial Estate


DE21 6HA

United Kingdom

+44 1332 366104 www.thermit-welding.com
Thermitrex (Pty) Ltd.

39 David Road



South Africa

+27 11 9142540 +27 11 9142547 www.thermitrex.co.za
Orgo-Thermit Inc.

3500 Colonial Drive North

Manchester, New Jersey 08759

United States of America

+1 732 6575781 +1 732 6575899 www.orgothermit.com
Thermit do Brasil Ind. e Com. Ltda.

Rua Sargento Silvio Hollenbach 601

21530-200 Rio de Janeiro


+55 21 24724912 +55 21 24724901 www.goldschmidt-thermit.com
PortaCo, Inc.

1805 2nd Avenue North

Moorhead, Minnesota 56560

United States of America

+1 218 236 0223 +1 218 233 0233 www.portaco.com
Goldschmidt-Thermit Japan, Co., Ltd.

3F, 32-Shibakoen-building

3-4-30, Shibakoen, Minato-ku

Tokyo 105-0011


+81 (0) 3 6820 8666 +81 (0) 3 6820 8665 www.goldschmidt-thermit.co.jp
Thermit China Co. Ltd.

97 Shan Xiang Road Economical Development Zone Kunshan, Jiangsu 215300


+86 512 57637678 +86 512 57638949 www.thermit-china.com.cn
Thermit Australia Pty. Ltd.

170 Somersby Falls Road

Somersby New South Wales, 2250


+61 2 43404988 +61 2 43404004 www.thermit.com.au
Thermit New Zealand Ltd.

69 Taupo Quay

Wanganui 4500

New Zealand

+61 2 43404988 +61 2 43404004 www.thermit.com.au
ETS Spoor B.V.

Wielingenstraat 125

1441 ZN Purmerend


+31 299 454050 +31 299 454055 www.etsspoor.nl
SRS Sjölanders AB

Klövervägen 17

283 50 Osby


+46 (0) 47917500 +46 (0) 47917545 www.srsroadrail.se
GRAW Sp. z o.o.

ul. Karola Miarki 12

44-100 Gliwice


+48 (32) 231 70 91 www.graw.com

Go Top