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Großmann – Fertigung

Manufacturing of complete solutions made of glass-fiber-reinforced plastic (GRP) – from nacelle covers for wind turbines to special constructions

Großmann Logo

Großmann Firmengruppe

Lunden (headquarters, Plant I) · Eggebek (Plant II)New on Amplifa

1977Founded
3Companies in the group
2Production sites (Lunden, Eggebek)
45+Years of experience in GRP manufacturing

About the Großmann Firmengruppe

The Großmann Firmengruppe with its headquarters in Lunden (Schleswig-Holstein) has existed since 1977 and is a manufacturer of products made of glass-fiber-reinforced plastic (GRP) based on glass-fiber-reinforced polyester (GF-UP). The group comprises Großmann Kunststofftechnik GmbH, K-tec Kunststoffverarbeitung GmbH and Großmann Wind Energy GmbH. Products manufactured include industrial components, nacelle covers for wind turbines, plastic covers for water, wastewater and environmental systems, agricultural products, mechanical engineering components, small parts in small and large series as well as model, mold and special constructions. Complete solutions can be realized in any size and shape. In addition to manufacturing, the company offers CAD/CAM services, adhesive bonding applications according to DIN 2304, plant engineering and calculations as partner services. Customers include, among others, the wind industry (onshore and offshore), plant engineering, the rail and automotive industries as well as agriculture. In addition to business relationships in other European countries, the company supplies customers in China, India, Venezuela and Brazil. The production facilities in Lunden and Eggebek have been expanded over several stages; since 2011 the company has used a photovoltaic system for self-supply.

Site
Lunden
Processes
Manufacture of GRP components (glass-fiber-reinforced plastic), Nacelle covers for wind turbines, Adhesive bonding according to DIN 2304 (class S2), Model and mold making, Small part manufacturing in small and large series, Plant engineering, CAD/CAM manufacturing, Special constructions/special builds
Materials
Glass-fiber-reinforced polyester (GF-UP), GRP (glass-fiber-reinforced plastic), Glass-fiber-reinforced plastic (GRP)
Certificates
DIN EN ISO 9001:2015, DIN 2304 adhesive bonding (class S2), ISO 9001:2015
Founded
1977
Industries
Wind industry (onshore and offshore, nacelle covers), Plant engineering, Rail industry/rail vehicles, Automotive industry, Agriculture/mechanical engineering, Water, wastewater and environmental technology
  1. 01

    Model and mold making

  2. 02

    CAD/CAM design

  3. 03

    GRP manufacturing (glass-fiber-reinforced polyester, GF-UP)

  4. 04

    Adhesive bonding according to DIN 2304

  5. 05

    Assembly/plant engineering

  6. 06

    Loading and logistics

Materials and Processes

GF-UP

Glass-fiber-reinforced polyester (GF-UP)

Base material for automotive and industrial components, nacelle covers for wind turbines, covers for water and environmental systems as well as special components.

GFK

Glass-fiber-reinforced plastic (GRP)

Universal material for complete solutions in any size and shape, from small parts to large series components.

Sites

Standort Lunden

Lunden

DE

Headquarters and Plant I: production, model and mold making

Lot size
Small to large series
Materials
GRP, GF-UP
  • Adhesive bonding hall 2015 (DIN 2304, class S2)
  • Photovoltaic system for self-supply

Eggebek

DE

Plant II (opened 2007)

Materials
GRP

Components and Products

Rotor blade connection
Rotor blade connectionGRP manufacturing · wind industry
Access hatches
Access hatchesGRP manufacturing · wind industry
Painted plastic element
Painted plastic elementGRP manufacturing · wind industry
Plastic element
Plastic elementGRP manufacturing · plant engineering

Inside the production

View of the company building in Lunden
View of the company building in Lunden
Aerial view of rotor blade connections
Aerial view of rotor blade connections
Stack of individual plastic elements
Stack of individual plastic elements
Employees at work
Employees at work
Plastic templates
Plastic templates
View from above into a plastic element
View from above into a plastic element
Plastic element being formed
Plastic element being formed
Loading of plastic elements
Loading of plastic elements
Blueprint
Blueprint
Access hatch
Access hatch

Industries

Wind industry (onshore and offshore, nacelle covers)Plant engineeringRail industry/rail vehiclesAutomotive industryAgriculture/mechanical engineeringWater, wastewater and environmental technologyWind industry (nacelle covers, onshore/offshore)Water, wastewater and environmental systems

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Manufacture of GRP components (glass-fiber-reinforced plastic)Plastics–––Small series – Large seriesGRP (glass-fiber-reinforced polyester, GF-UP)
Nacelle covers for wind turbinesPlastics––––GF-UP
Adhesive bonding according to DIN 2304 (class S2)Joining––––GRP
Model and mold makingEngineering––––GRP
Small part manufacturing in small and large seriesPlastics––––GRP
Plant engineeringAssembly––––GRP
CAD/CAM manufacturingEngineering–––––

Additional services

Model and mold makingSpecial constructions/special buildsSmall part manufacturingPlant engineeringAdhesive bonding applications (DIN 2304)CAD/CAMPartner services/calculationsRaw material salesPhotovoltaic self-supply

Reference customers

REpower (1st place Suppliers Day 2009/2010)Areva (TOP supplier 01.07.2009)

Quality

The Großmann Firmengruppe is certified according to DIN EN ISO 9001:2015 (DEKRA, certificate 80312171/2) and held a certificate for adhesive bonding applications according to DIN 2304 class S2 (OFI). The manufacturing covers series components and complex special constructions with continuous quality assurance.

EvidenceLunden
ISO 9001:2015
DIN 2304 adhesive bonding (class S2)

History

  1. 1977

    Foundation of Großmann Kunststofftechnik by Wolfgang Großmann

  2. 1988

    Move to the factory building in Lunden, Brunnenstraße

  3. 1991

    Conversion into Großmann Kunststofftechnik GmbH

  4. 1995

    Foundation of K-Tec Kunststoffverarbeitungs GmbH

  5. 1999

    Expansion of production area by 2,000 m²

  6. 2003

    Expansion of production area by 2,500 m²

  7. 2007

    Opening of Plant II in Eggebek

  8. 2008

    Expansion of production area by approximately 2,000 m²

  9. 2009

    Named TOP Areva supplier on 01.07.2009 in Berlin; 1st place at the REpower Suppliers Day 2009/2010

  10. 2011

    Inauguration of the new production facility Lunden/Moorchausse with an expansion of 3,500 m²; commissioning of a photovoltaic system for own use

  11. 2012

    Foundation of Großmann Wind Energy GmbH; construction of a storage and assembly hall; PV expansion by 100 kWp; start of worldwide offshore projects; preparatory planning for the expansion of Plant III

  12. 2021

    Successful certification according to DIN EN ISO 9001:2015 (valid 12.03.2021–11.03.2024)

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