
Manufacturer of pumps and agitators for agriculture and biogas plants since 1887.

Franz Eisele u. Söhne GmbH & Co. KG
Sigmaringen (Laiz) · GermanyNew on Amplifa
About EISELE
Franz Eisele u. Söhne GmbH & Co. KG develops and manufactures pumps and agitators for agriculture and the biogas sector in Sigmaringen-Laiz. The portfolio includes submersible motor pumps (AT/ATF/GTF), vertical pumps (VM/VG/VK), block pumps (BP), rotary lobe pumps (DK) as well as submersible motor, bar, hydraulic and PTO-driven agitators, complemented by a barrel filling station and around 25,000 accessories and spare parts. Motors – including IE5 synchronous motors with efficiency of up to 96 % – are manufactured in-house; ATEX-approved variants are available for biogas EX. Production works with grey cast iron and stainless steel components, including V2A (1.4301), galvanized steel and an in-house paint booth. Facilities include a production hall opened in 2016 as well as a test centre for performance testing of all pumps and agitators. The family company, founded in 1887, employs 108 staff at the Sigmaringen site and delivers worldwide.
- Site
- Sigmaringen
- Processes
- Manufacture of submersible motor pumps (AT/ATF/GTF), Manufacture of vertical pumps (VM/VG/VK), Manufacture of block pumps (BP), Manufacture of rotary lobe pumps (DK), Manufacture of submersible motor agitators (GTWS/GTWSB/GTWSL/GTWSU/GTWSH), Manufacture of GigaMotion bar agitators, Manufacture of hydraulic agitators (HP), Manufacture of PTO-driven agitators (ZP/ZQU)
- Materials
- Grey cast iron, V2A (1.4301), Stainless steel, Galvanized steel, Paint coating
- Certificates
- ISO 9001, ATEX (GTWSI-EX, GigaMotion, AT pumps)
- Founded
- 1887
- Employees
- 108
- Industries
- Agriculture, Biogas, Biogas EX (explosion protection)
- 01
Design & engineering
- 02
Motor manufacturing
- 03
Cast iron & steel machining
- 04
Painting
- 05
Assembly
- 06
Testing in the test centre
- 07
Sales & service portal
Materials & Processes
Grey cast iron
Robust housings for pumps and agitators with efficient heat dissipation.
V2A (1.4301)
Propellers, carriages, pipework components and frames for corrosive media.
Galvanized steel
Augers, slide rails and components for PTO-driven agitators.
Stainless steel
Agitator shafts, protective tubes and wear parts in contact with slurry and digestate.
Paint coating
Energy-efficient paint booth (since 2018) for corrosion protection of the equipment.
Locations

Sigmaringen (Laiz)
DEHeadquarters, production, administration, test centre
- Materials
- Grey cast iron, stainless steel (1.4301), galvanized steel
- Horizontal boring machine
- Paint booth (2018)
- Test centre for pump and agitator testing (2016)
- Production hall (2015/2016)
Components & Products






Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of submersible motor pumps (AT/ATF/GTF)Assembly | – | – | – | – | Grey cast iron, Stainless steel |
| Manufacture of vertical pumps (VM/VG/VK)Assembly | – | – | – | – | Grey cast iron, Stainless steel |
| Manufacture of block pumps (BP)Assembly | – | – | – | – | Grey cast iron |
| Manufacture of rotary lobe pumps (DK)Assembly | – | – | – | – | Grey cast iron |
| Manufacture of submersible motor agitators (GTWS/GTWSB/GTWSL/GTWSU/GTWSH)Assembly | – | – | – | – | Grey cast iron, Stainless steel, V2A (1.4301) |
| Manufacture of GigaMotion bar agitatorsAssembly | – | 6.0 m (structural length) | – | – | V2A (1.4301), Stainless steel |
| Manufacture of hydraulic agitators (HP)Assembly | – | – | – | – | Stainless steel |
| Manufacture of PTO-driven agitators (ZP/ZQU)Assembly | – | 8.0 m (structural length ZP 120) | – | – | Stainless steel, Galvanized steel |
| In-house motor manufacturing (IE5 synchronous motors)Assembly | – | – | – | – | – |
| Grey cast iron foundry (historical, affiliated in 1921)Casting | – | – | – | – | Grey cast iron |
| Painting (energy-efficient paint booth since 2018)Surface treatment | – | – | – | – | – |
| Test centre: performance testing of all pumps and agitatorsTesting | – | – | – | – | – |
| Barrel filling station / accessories, 25,000 accessories & spare parts, high in-house productionAssembly | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Horizontal boring machine | – | – | – | – | Sigmaringen-Laiz |
| Paint booth | – | – | – | 2018 | Sigmaringen-Laiz |
| Test centre for pump and agitator testing | – | – | – | 2016 | Sigmaringen-Laiz |
| Production hall | – | – | – | 2015/2016 | Sigmaringen-Laiz |
Additional services
Reference customers
Quality & Certification
Eisele is certified to ISO 9001 and tests all pumps and agitators for their performance in its own test centre.
| Evidence | Sigmaringen (Laiz) |
|---|---|
| ISO 9001 | |
| ATEX (GTWSI-EX, GigaMotion, AT pumps) |
History
- 1887
Foundation of Franz Eisele und Söhne Pumpenfabrik und Eisengießerei (pump factory and iron foundry) by Franz Eisele at the Laiz site in Sigmaringen.
- 1903
Introduction of electric motors; German imperial patent.
- 1921
Expansion of operations with a grey cast iron foundry; around 60 employees by 1927.
- 1927
Death of the founder; Josef and Carl Eisele together with Adolf Zeller take over management.
- 1947
First mobile centrifugal pump.
- 1970
Start of barrel wagon manufacturing.
- 1972
Expansion with vertical pumps and the first mobile submersible motor pump.
- 1980
Bernd Eisele takes over management, supported from 1985 by Michael Eisele.
- 1982
Development of submersible motor agitators, submersible motor pumps and the first rotary lobe pump (1982–1985).
- 2000
Continuous development and expansion of production; worldwide recognition.
- 2015
End of barrel wagon manufacturing; construction of a new production hall.
- 2016
Opening of the production hall and completion of the R&D test centre.
- 2017
Dominik Eisele joins the management board in the fifth generation.
- 2018
Commissioning of the energy-efficient paint booth.
- 2021
Brand relaunch with the new slogan "Knowledge in motion".
- 2022
Construction of a new administration building with EFRE funding.