1960

On July, 1st, 1960 our company was founded and named Metallbearbeitung Steinbach GmbH. Company founder Ernst Günter Lehnhoff started the company in a small hall next to Baden-Baden with the remanufacturing of drives.

1962

 Lehnhoff first appeared at the BAUMA in Munich.

1965

The Lehnhoff excavator-tooth-system was invented and established at the market. The first monoblock tooth 331B is drop-forged.

1966

Fundamental change of programme:
The remanufacturing  of drives stops. Lehnhoff starts with manufacturing backhoe buckets for hydraulic excavators. The first customized buckets are manufactured.

1968

Development of the first tilting bucket (nowadays world wide standard) a further milestone for the building industry and a perfect supplement for the constantly growing selection of highquality Lehnhoff Hartstahl equipments.

1980

After the death of company founder Ernst Günter Lehnhoff his son Peter Alexander Lehnhoff assumed the company as managing partner.

1984

Enlargement of the attachment program for hydraulic excavators. Original equipment manufacturer for Komatsu Germany.

1987

Enlargement of the product range about cutting edge profile and wide flat steel with aprox. 500HB.

1989

Implementation of the Lehmatic-quickcoupler-system for hydraulic excavators. 

First quickcoupler:
Lehmatic MS03 for Mini-excavator.

1992

Komplettes Schnellwechsler-Programm für 1 t Minibagger bis 70 t Hydraulikbagger.

1997

First quickcoupler Lehmatic HS100 for 100t excavator working at demolition.

1997

Since 1997 Lehnhoff Hartstahl is certified for DIN EN ISO 9001

2007

Introduction of the fully ydraulic quickcoupler system Variolock.

2008

Enlargement of the production area with welding robots.

2010

Opening of the very own Lehnhoff Demopark.

We welcome our guests!

2015

Construction of a new hall for logistics and final assembly with approx. 5000m² roofed space.

2016

Lehnhoff becomes part of the Komatsu group

2024

New CEO Mr. Matsumura