Family-owned industrial group for refractories, conveyor chains, expansion joints, seals, sliding bearings and metal contract manufacturing in Erl, Tyrol.
Senn Beteiligungs GmbH (SENN Gruppe)
Erl, AT · Klosterneuburg, AT · Plettenberg, DE · Nuremberg, DENew on Amplifa
About the SENN Group
The SENN Group is a family-run Austrian company headquartered in Erl (Tyrol) that has been operating as a one-stop shop for industrial supply products since 2001. The group comprises a holding company with nine operating subsidiaries, including Gasser GmbH (foundry supplies, oldest root 1925), Ceratec GmbH (refractories and high-temperature insulation), RBS Kompensator GmbH (fabric expansion joints), Sinteca HandelsgmbH (sintered bronze and sintered iron sliding bearings) and K. Hoffmann GmbH (vermiculite insulation). At its own metal fabrication facility in Erl, parts are manufactured by laser cutting, 5-axis CNC milling, CNC turning, press braking and robotic welding from steel, stainless steel (1.4301, 1.4404) and aluminium, from one-offs to large production runs. The product range covers refractory materials up to 1,600 °C, conveyor chains to DIN standards, seals, lubricants (Chesterton) and logistics services (FTL/LTL, own fleet). Customers come from energy, cement & lime, steel & foundry, wood, glass, chemicals, plant engineering and other industries. Around 110 employees generate group revenue of approx. EUR 40 million; more than 3,000 items are available ex warehouse in Erl.
- Site
- Erl
- Processes
- Laser cutting, CNC milling (5-axis), CNC turning, Waterjet cutting, Punching/stamping, Press braking, Bending - rolling - swaging, (Robotic) welding (MIG/MAG, TIG)
- Materials
- Stainless steel 1.4301, Stainless steel 1.4404, Stainless steel 1.4571, Stainless steel 1.4541, Aluminium, Steel (mild steel), Case-hardening / heat-treatable steel 16MnCr5, Heat-treatable steel 42CrMo4
- Certificates
- ISO 9001:2015
- Founded
- 2001
- Employees
- ~110
- Industries
- Energy & power plants, Cement & lime, Steel & foundry, Wood, chip & paper, Glass industry, Chemicals & petrochemicals
- 01
Consulting & design
- 02
Material selection & procurement
- 03
CNC machining / sheet metal working (laser cutting, milling, turning)
- 04
Welding & assembly
- 05
Surface finishing (via partners)
- 06
Quality inspection
- 07
Warehousing & logistics (own fleet)
Locations
Erl, AT
ATHeadquarters, production, warehouse, sales (holding + 7 subsidiaries)
- Lot size
- One-offs to large production runs
- Materials
- Steel, stainless steel, aluminium, refractories, seals
- Laser cutting system MSE SmartFL 3001.15L (3000 x 1500 mm)
- 5-axis CNC milling machines
- CNC lathes
- Welding robots (MIG/MAG, TIG)
- Press brakes
- Waterjet cutting system
Klosterneuburg, AT
ATSinteca HandelsgmbH — sliding bearings, Chesterton products
- Materials
- Sintered bronze, sintered iron
Plettenberg, DE
DEK. Hoffmann GmbH — vermiculite products, insulation technology
- Materials
- Vermiculite
Nuremberg, DE
DESales office
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser cuttingMachining | – | 3000 mm × 1500 mm | – | One-offs – Large production runs | Steel, Stainless steel, Aluminium |
| CNC milling (5-axis)Machining | – | – | – | Prototypes – Series | Steel, Stainless steel (1.4301, 1.4404), Aluminium, Plastics |
| CNC turningMachining | – | – | – | One-offs – Series production | Steel, Stainless steel, Aluminium |
| Waterjet cuttingMachining | – | – | – | – | – |
| Punching/stampingForming | – | – | – | – | – |
| Press brakingForming | – | – | – | – | Steel, Stainless steel, Aluminium |
| Bending - rolling - swagingForming | – | – | – | – | – |
| (Robotic) welding (MIG/MAG, TIG)Joining | – | – | – | – | Steel, Stainless steel |
| Welded constructionsJoining | – | – | – | – | – |
| Assembly of sub-assembliesAssembly | – | – | – | – | – |
| Manufacturing of fabric expansion joints (RBS)Joining | – | – | – | Custom one-offs to drawing – Series | technical textiles, silica fabric, ceramic fiber fabric, glass fiber fabric |
| Manufacturing of metal expansion joints and metal bellowsForming | – | – | – | – | Stainless steel 1.4571, Stainless steel 1.4541, Stainless steel 1.4301 |
| Manufacturing of rubber expansion jointsPlastics | – | – | – | – | vulcanized rubber with nylon, aramid or steel cord |
| Textile tailoring & removable insulation coversAssembly | – | – | – | – | silica fabric, ceramic fiber fabric, glass fiber fabric |
| Manufacturing of flanges and steel parts (contract manufacturing since 2019)Machining | – | – | – | – | Stainless steel, Steel |
| In-house conveyor chain production (bush chains and drag chains, to on-site measurement, drawing orJoining | – | – | – | – | 16MnCr5, 42CrMo4, 18MnCrB5 |
| Manufacturing of vermiculite CNC molded partsMachining | – | – | – | – | Vermiculite |
| Manufacturing of vermiculite pressed partsForming | – | – | – | large quantities | Vermiculite |
| Manufacturing of refractory shaped parts via CNC machining and vacuum processesMachining | – | – | – | Prototype – Series | Vermiculite, Calcium silicate, Ceramic fiber |
| CNC and waterjet cutting of seals to drawing, stamped partsMachining | – | – | – | Small quantities | phlogopite mica, elastomer-bound fibers, graphite, PTFE, silicone, silicone foam |
| In-house production of sintered bronze and sintered iron sliding bearingsCasting | – | – | – | – | Sintered bronze, Sintered iron |
| Powder coatingSurface | – | – | – | – | – |
| AnodizingSurface | – | – | – | – | Aluminium |
| ElectroplatingSurface | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laser cutting system | MSE SmartFL 3001.15L | 1 | 3000 x 1500 mm | – | Erl, AT |
| Laser systems | – | – | – | – | Erl, AT |
| Milling machines (CNC) | – | – | – | – | Erl, AT |
| Lathes (CNC) | – | – | – | – | Erl, AT |
| Welding robots | – | – | – | – | Erl, AT |
| Metal fabrication machinery (new since 2022) | – | – | – | 2022 | Erl, AT |
Additional services
Reference customers
Quality
The SENN Group has been certified to ISO 9001:2015 since 2008; conveyor chain steels are delivered with certification in accordance with EN 10204 (3.1). Quality assurance covers consulting from design through production to final inspection.
| Evidence | Erl, AT | Klosterneuburg, AT | Plettenberg, DE |
|---|---|---|---|
| ISO 9001:2015 |
History
- 1925
Foundation of Gasser GmbH (foundry supplies) in Erl — oldest root of the group
- 1984
Foundation of Sinteca HandelsgmbH (Vienna)
- 1986
Foundation of K. Hoffmann GmbH in Plettenberg
- 1988
Beginning of the founder's conveyor chain expertise
- 2001
Foundation of KS Kneissl & Senn Technologie GmbH in Kufstein (in the old Kneissl ski factory) — founding of the SENN Group
- 2008
Initial ISO 9001 certification
- 2009
Stake in RBS Kompensator GmbH (75%), start of in-house fabric expansion joint production
- 2010
Foundation of Ceratec GmbH in Erl
- 2013
Relocation of headquarters to Erl; foundation of SENN Beteiligungs GmbH (holding) and Senn Immobilien GmbH
- 2017
Acquisition of Gasser GmbH; opening of the Nuremberg sales office
- 2018
Acquisition of Ceratec GmbH; construction of Hall A (+1,800 m²)
- 2019
Start of (contract) manufacturing of metal parts and flanges at RBS
- 2021
Foundation of Senn Kraftwerke GmbH
- 2022
Sinteca integrated (90%); new machinery for metal fabrication in Erl
- 2023
Construction of Hall HE (+3,500 m²); foundation of Senn Logistik GmbH; integration of K. Hoffmann GmbH