The U4 blast furnace is a unique place in France which can be visited and discovered during openings times. Through the various visits, the public will be able to perceive and understand the operation of the factory and grasp, through the testimonies of Mécilor guides, the life of the factory in its technical, historical and human dimensions.

You can visit the Blast Furnace U4 freely, with a guide or audioguide. 

An exhibition created by Mécilor guides will allow you throughout the year to discover the history and the manufacturing process of cast iron.

Guided Tours (only in French)

- From April 1st to November 1st : guided tours on Saturdays, Saturday and public holydays (except Monday) at 2.15 pm and 4.30 pm

- From June 15th to August 31st : night guided tour on Saturdays at 9 pm.

- From April 15th to April 28th, from July 11th to September 1st and from October 24th to October 31st: guided tours on Tuesday and Friday at 3 pm.

Night free Tours

From June 15th to August 31st, the Blast Furnace U4 is open on Saturdays from 7 p.m. to midnight to allow you to discover the work "Tous les Soleils" by Claude Lévêque.

Audio Tours

Available in French, English, German and Dutch.


Price (off show)

  Full price (+ 18 years old) Reduced price* Reduced price with a ticket from "Jardin des Traces" Free **
Free Tour 4€ 3€ 2€ 0€

Guided Tour (only in French)

6€ 5€ 4€ 0€
Audio Tour 6€ 5€ 4€ 2€

Means of payment : Credit card, money.

* Child (12-17 years old), Grupp (+ 10 person), Student, Visitor of "Musée des Mines Neufchef"

** with proof : Child (-12 years old), Unemployed people and disable people

Picture : CAVF