Freudenthaler Sensenhammer, Industrial museum and historic scythe factory in Leverkusen, Germany.

The Freudenthaler Sensenhammer is a former scythe factory in the Schlebusch district of Leverkusen, on the Dhünn, run as a museum since spring 2005. Its largely original buildings and workplaces show the steps of scythe making, from the 1778 hammer works to the 1890 boiler house with chimney for a steam engine.

The first hammer works at Freudenthal on the Dhünn was built in 1778, when the merchant Derick van Hees received permission to erect a refining hammer; steel blanks, not scythes, were made at first. Caspar Lange took over in 1815 and enlarged the hammer building. In 1837 the Kuhlmann family began scythe and sickle production, which continued until the H.P. Kuhlmann Söhne works closed in 1987.

Regular blacksmith demonstrations at original workstations show visitors the manufacturing techniques and working conditions of historical industrial production in Germany.

The museum is located on the outskirts of Leverkusen and is best reached by car or public transport. Visitors should plan adequate time to thoroughly explore the workshop areas and displays throughout the site.

The 1890 boiler house and chimney were built for a steam engine, and in 1906 the factory signed a feed-in contract with the Bergische Elektrizitäts-Werk of Solingen. In 1914 the works turned out over 200,000 scythes and straw knives. Production under H.P. Kuhlmann Söhne ceased in 1987.