Nencki - Rail Welding Plant Equipment

Nencki is a leading Swiss manufacturer of bogie testing and maintenance equipment and for machinery for stationary rail welding plants.

Rail welding factory and machines

Nencki provides a complete welding factory or individual machines for long-welded rails. The available range of machinery and equipment includes:

  • Rail-end brushing machines
  • Flash-butt welding machines
  • Four-way straightening machines
  • Rail profile grinding machines
  • Conveyors for rails and mainline control, for connecting all machinery to a complete line
  • Weld test presses
  • Mobile straightening presses

Rail-end brushing machines

Rail-end brushing units are installed before the welding machines and their primary function is to remove stains, rust and other impurities from rail ends, to achieve an excellent mechanical contact surface for welding.

Rail transport clamping devices as well as a dust extractor are included in the machines.

Rail profile grinding machines

Rail profile grinding machines are used for reproduction of the exact rail profile on the welded joint within the profile head. The finishing grinding machine is integrated in the welding line and used for machining new and old rails. It is usually placed between the straightening press and the final control.

The rail profile grinding machines are compact, independent systems consisting of a self-propelled under-frame, complete grinding unit, hydraulic power pack, electrical / electronic control and a rear-mounted dust extractor.

Mobile straightening press

Nencki provides mobile straightening presses for rail and switch tongue profiles. Easy exchangeable press tools allow a fast set-up for other profiles. Versions for operation by hand pump or electric motor are available, with variable press forces of 90t or 120t.

Switzerland-made bogie testing and maintenance equipment

All Nencki products are manufactured in Switzerland. Nencki has its own departments with skilled staff for mechanical, hydraulic, electronic and software engineering, as well as manufacturing facilities for machining, welding and assembly and an international after-sales service organisation. Nencki operates in accordance with international standards such as ISO 9001.

Nencki has regional offices worldwide, and is always interested in additional distribution partners.

Contact Details


Nencki Ltd.
Gaswerkstrasse 27
4900 Langenthal
Switzerland
Tel: +41 62 91 99 39 3
Fax: +41 62 91 99 39 0
Email: railway@nencki.ch
URL: www.nencki.ch

Four-way straightening with cooling and factory view.
NENCKI 90 to mobile press.
Rail brushing machine.
Rail grinding machine.
Rail test press.
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