1922 foundation of Jakob Lach GmbH & Co. KG: cutting workshop for jewellery diamonds with 600 employees in own facilities
1922
1922

Foundation of Jakob Lach GmbH & Co. KG: cutting workshop for jewellery diamonds with 600 employees in own facilities

1936
1936

Relocation from Langendiebach to Steinheimerstrasse in Hanau

2nd World War - cessation of activities

1947
1947

Change in business purpose: trade in industrial diamonds for use in dressing tools for the grinding wheel industry

1950s
1950s

Due to the economic growth the diamond cutting craft came to a standstill and shifted to Israel, India, Russia

1950s
1950s

Jakob Lach starts trading with industrial diamonds for the dressing of ceramic-bonded grinding wheels in ball bearing and automotive industries.

1960
1960

Horst Lach joins his father's company.

1962
1962

Re-employment of diamond cutters for cutting industrial diamonds.

1963
1963

Start of the manufacturing of natural diamond grinding wheels with metal and resin bonds.

1969
1969

LACH DIAMANT was the first manufacturer worldwide to present CBN-Borazon grinding wheels for HSS tools.

1973
1973

At the Hanover Spring Trade Fair Horst Lach demonstrates for the first time the superior turning of aluminium and copper (commutators) with polycrystalline diamonds (PCD).

1974
1974

Hanover Trade Fair: Presentation of the first PCD diamond milling tools for the cutting of aluminium, wood and plastic materials.

1975
1975

Hanover Trade Fair: First presentation of polycrystalline boron nitride (PCBn) tools for the turning of high-alloy hardened steels.

1977
1977

Horst Lach discovers spark erosion as a tool for the processing and shaping of polycrystalline diamonds (PCD) allowing the cost effective production of PCD tools – milling cutters, saw blades, drills. This groundbreaking invention became Horst Lach's first patent.

1978
1978

Productronica, Munich: First presentation of diamond tools for the cutting, scoring, sawing and edge processing of printed circuit board materials (PCB).

1979
1979

LIGNA, Hanover: The first presentation world wide of diamond tools (PCD) for the processing of wood, all wood materials and plastics. Only the introduction of PCD tools in the woodworking industry allowed the cost-effective series production of wooden furniture.

1980
1980

FAMETA, Essen: Presentation of the world's first PCD Monoblock milling cutter for aluminium machining.

1981
1981

EMO, Hanover: First presentation of the patented "drebojet" dressing roll with polycrystalline diamond for profiling conventional ceramic-bonded grinding wheels. Thus, the term mill-dressing came into being.

1982
1982

Foundation of LACH DIAMOND INC, Grand Rapids, Michigan, USA

1984
1984

Relocation to the newly built headquarter in Donaustrasse, Hanau

1987
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1987

LIGNA, Hanover: Presentation of the new universal sharpening machine "EDG" for the spark erosion processing of PCD – which has initially been developed for inhouse use since 1978.

1996
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1996

Robert Lach, engineer, joins the company.

1997
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1997

LACH DIAMANT celebrates its 75th anniversary. The newly built plant in Lichtenau near Chemnitz is inaugurated.

1999
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1999

LACH DIAMANT received the Diamond Award from DeBeers for 25 years of pioneering work in manufacturing and market development in the polycrystalline diamond tool sector.

1999
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1999

Innovation: PCD cutting insert "IC-plus" with chipbreaker for turning aluminium. The patent for short chips revolutionises the world of metal cutting.

2004
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2004

The monoblock diamond milling cutter receives the Hessian Innovation Award.

2006
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2006

Together with his father Horst Lach, CEO Robert Lach manages the family enterprise LACH DIAMANT.

2006
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2006

LACH DIAMANT receives the Airtec Award for special developments for the processing of fibre composite materials.

2007
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2007

The extension building of the plant in Lichtenau near Chemnitz doubles the production capacity for PCD cutting tools.

2010
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2010

The patent for the "Cool Injection - direct cooling system" is granted.

"Cool Injection" can make diamonds even harder – another innovation.

2011
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2011

The LACH DIAMANT plant in Saxony, Germany celebrates its 20th anniversary.

Inauguration of the 3rd construction phase of the Lichtenau plant – production capacity has doubled once again.

2012
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2012

13th September: 118th birthday of the company founder Jakob Lach – academic celebration in the German House of Goldsmiths in Hanau – 90th anniversary of LACH DIAMANT

2016
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2016

At Grindtec exhibition in Augsburg LACH DIAMANT presents "drebojet-plus" (pat.) precision dressing rolls with innovative formula for the CNC dressing of conventional grinding wheels.

2017
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2017

EMO, Hanover: Presentation of the cartridge milling cutter, the complete programme "IC-plus" and of profiled grinding wheels with metal bond.

2018
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2018

The new dimension in creep-feed grinding: one for all – contour-profiled grinding wheels for drastical reduction of production costs.

2020
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2020

The LACH DIAMANT PCD solid drill sets a new record in the production of wind turbine blades: one drill Ø64 – 400 blades – 80 drilling operations each – drilling depth 130 mm

Thus, with only one drill a wind farm with 133 wind turbines has been manufactured. 

2022
Extra Label
2020

100 years of Lach Diamant: The company proudly looks back on 100 years of corporate and industrial history. Numerous products are already waiting in the pipeline, which will continue to inspire the market in the future.

How LACH DIAMANT left its mark on industry

Horst Lach, CEO, reports on the development of diamond and CBN tools in the industry in an ongoing series named “Poly – poly – or what?”