Manufacturing of complex turned-milled parts and gearing components for the bicycle and mobility industry
Elsner & Jyrch GmbH
PirnaNew on Amplifa
About Elsner & Jyrch
Elsner & Jyrch GmbH is a spin-off founded in 2022 by Alfred Jyrch and Roman Elsner from the Chair of Machine Tool Development and Adaptive Control at TU Dresden, created within the framework of an EXIST founding scholarship from the BMWK. The company in Pirna specializes in the manufacture of complex turned and turned-milled parts, in particular gearing parts as well as drive and freewheel components for bicycles. In addition to external, internal, helical and face gearing, technologies such as power skiving and slot slotting are used. Production is primarily in high-strength aluminum alloys, steel, stainless steel and titanium, in small to medium (five-digit) quantities. Elsner & Jyrch GmbH supports customers from prototype to series production, also operates its own brand QVIST for bicycle hub freewheels, and makes its development and manufacturing expertise available to other companies as well.
- Site
- Pirna
- Processes
- Turn-mill machining of complex parts, Power skiving, Face gearing, Slot slotting with slotting unit, Development of drive components and assemblies, Prototype development through series production, CNC turn-mill manufacturing
- Materials
- Aluminum, Steel, Stainless steel, Titanium, High-strength aluminum alloys, Power Skiving, Face gearing, Slot slotting with slotting unit
- Founded
- 2022
- Industries
- Bicycle industry, Mobility industry
- 01
Development of drive components and assemblies
- 02
Prototype development
- 03
CNC turn-mill machining
- 04
Gearing (power skiving, face gearing, slot slotting)
- 05
Series production
- 06
Assembly/assemblies
Materials and Manufacturing Technologies
High-strength aluminum alloys
Standard material for lightweight drive and freewheel components.
Steel
Used for durable gearing and drive parts.
Stainless steel
For turn-milled parts exposed to corrosion.
Titanium
For highly stressed, lightweight components of the mobility industry.
Power Skiving
Highly productive machining of internal and external gearing in the same setup as the turning operation.
Face gearing
Highly productive machining of face-side and conical gearing, including Hirth serrations and gear discs.
Slot slotting with slotting unit
Economical production of Torx, serration, slots and chamfers in the same setup.
Pirna Site
Pirna
DEManufacturing and administration
- Lot size
- Small to medium (five-digit) quantities
- Materials
- Aluminum, steel, stainless steel, titanium
- INDEX R200 turn-mill center (bar passage 65 mm, 5-axis machining, 2 motorized milling spindles 18,000 1/min)
- TRAUB TNX65 turn-mill center (bar passage 65 mm, turning length 650 mm, 3 tool carriers, milling spindle 12,000 1/min)
- 2 INDEX ABC production turning automats (bar passage 42 mm and 65 mm respectively)
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Turn-mill machining of complex partsMachining | – | – | – | small quantities – five-digit quantities | Aluminum, Steel, Stainless steel, Titanium |
| Power skivingMachining | – | – | – | – | – |
| Face gearingMachining | – | – | – | – | – |
| Slot slotting with slotting unitMachining | – | – | – | – | – |
| Development of drive components and assembliesEngineering | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Turn-mill center | INDEX R200 | – | Max. bar passage 65 mm | – | Pirna |
| Turn-mill center | TRAUB TNX65 | – | Max. bar passage 65 mm, max. turning length 650 mm | – | Pirna |
| Production turning automat | INDEX ABC | 2 | Max. bar passage 42 mm and 65 mm respectively | – | Pirna |
Additional services
Reference customers
History
- 2022
Founded as a spin-off of the Chair of Machine Tool Development and Adaptive Control at TU Dresden within the framework of an EXIST founding scholarship from the BMWK by Alfred Jyrch and Roman Elsner; establishment of an own CNC manufacturing operation