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Firner Trautwein – Fertigung

Manufacture of custom precision turned parts in diameters from 3 to 65 mm made of brass, steel, stainless steel, aluminium and copper

Firner Trautwein Logo

Trautwein Präzisionsdrehteile GmbH

Zeil am Main · DunningenNew on Amplifa

2 locationsZeil am Main and Dunningen
3–65 mmDiameter range of the turned parts
2,000–200,000 piecesLot sizes per production batch
Seven-digit annual volumesvia frame contracts

About Firner Trautwein

Firner Trautwein is a manufacturer of custom precision turned parts with locations in Zeil am Main and Dunningen. The company produces complex turned-milled parts on CNC single-spindle and multi-spindle lathes and rotary transfer machines, as well as on cam-controlled multi-spindle automatic lathes and rotary transfer machines. Round, hexagonal and hollow stock, tube and wire are machined in a diameter range from 3 mm to 65 mm; lot sizes range from 2,000 to 200,000 pieces, with seven-digit annual volumes handled via frame contracts. In addition to machining, the company offers deburring, surface finishing such as nickel plating, silver plating, chrome plating, zinc plating, tin plating, gold plating, polishing and anodising, heat treatment, flanging, screw fastening, welding on of contact materials and automated assembly of assemblies. Customers are mainly from industries such as electrical engineering, electronics, automotive, communications technology, sanitary engineering, pneumatics and mechanical engineering; further customers come from building services, transport engineering and medical technology. The customer base includes globally active companies, which are also supplied from a high-bay warehouse for customer-specific storage.

Site
Zeil am Main
Processes
CNC turning (single-spindle automatic lathes), CNC multi-spindle automatic lathes, Rotary transfer machines, Cam-controlled multi-spindle automatic lathes, Sliding-headstock turning / rotary transfer machines, Transfer and special-purpose machines (manufacturing), Deburring, Assembly work/assembly of assemblies
Materials
Brass, Steel, Stainless steel, Aluminium, Copper
Certificates
ISO 9001
Industries
Electrical engineering, Electronics, Automotive, Communications technology, Sanitary engineering, Pneumatics
  1. 01

    Material selection (machining material)

  2. 02

    CNC turning (single-spindle, multi-spindle, rotary transfer)

  3. 03

    Deburring

  4. 04

    Surface finishing / heat treatment

  5. 05

    Assembly of assemblies

  6. 06

    Quality inspection

  7. 07

    Storage and shipping

Locations

Standort Zeil am Main

Zeil am Main

DE

Production

Lot size
2,000–200,000 pieces
Materials
Brass, steel, stainless steel, aluminium, copper
  • CNC single-spindle automatic lathes
  • CNC multi-spindle automatic lathes
  • Rotary transfer machines
  • Cam-controlled multi-spindle automatic lathes
  • Rotary transfer machines
  • Deburring machines
  • Transfer and special-purpose machines
  • Finishing machines
  • Automatic assembly machines
  • Handling robots
  • High-bay warehouse

Dunningen

DE

Location/Production

Lot size
2,000–200,000 pieces
Materials
Brass, steel, stainless steel, aluminium, copper
  • CNC single-spindle automatic lathes
  • CNC multi-spindle automatic lathes
  • Rotary transfer machines

Components

Precision turned part, electrical engineering
Precision turned part, electrical engineeringCNC turning · Electrical engineering
Precision turned part, automotive
Precision turned part, automotiveCNC turning · Automotive
Precision turned part, communications technology
Precision turned part, communications technologyCNC turning · Communications technology
Precision turned part, sanitary engineering
Precision turned part, sanitary engineeringCNC turning · Sanitary engineering
Assembly
AssemblyAssembly · Electronics
Precision turned part
Precision turned partCNC turning · Mechanical engineering
Precision turned part
Precision turned partCNC turning · Pneumatics

Inside the production

CNC-controlled machine fleet
CNC-controlled machine fleet
Impressions from production
Impressions from production
Manufacturing
Manufacturing
Trade fair stand
Trade fair stand

Industries

Electrical engineeringElectronicsAutomotiveCommunications technologySanitary engineeringPneumaticsMechanical engineeringBuilding servicesTransport engineeringMedical technologySanitary engineering/Sanitary industry

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
CNC turning (single-spindle automatic lathes)Machining––––Brass, Steel, Stainless steel, Aluminium, Copper
CNC multi-spindle automatic lathesMachining––––Brass, Steel, Stainless steel, Aluminium, Copper
Rotary transfer machinesMachining––––Brass, Steel, Stainless steel, Aluminium, Copper
Cam-controlled multi-spindle automatic lathesMachining––––Brass, Steel, Stainless steel, Aluminium, Copper
Sliding-headstock turning / rotary transfer machinesMachining––––Brass, Steel, Stainless steel, Aluminium, Copper
Transfer and special-purpose machines (manufacturing)Machining––––Brass, Steel, Stainless steel, Aluminium, Copper
DeburringSurface––––Brass, Steel, Stainless steel, Aluminium, Copper
Assembly work/assembly of assembliesAssembly–––––
Assembly of assemblies (automatic assembly machines)Assembly–––2,000 pieces – 200,000 pieces–
FlangingForming–––––
Welding on of contact materialsJoining–––––
Screw fasteningAssembly–––––
Nickel platingSurface–––––
Silver platingSurface–––––
Chrome platingSurface–––––
Zinc platingSurface–––––
Tin platingSurface–––––
Gold platingSurface–––––
PolishingSurface–––––
AnodisingSurface–––––
Coating for screw lockingSurface–––––
Heat treatmentHeat treatment–––––
Surface coatingSurface–––––
Turned part production in diameter range 3 mm to 65 mmMachining–65 mm (diameter)––Brass, Steel, Stainless steel, Aluminium, Copper
Machining of round, hexagonal and hollow stock, tube and wire (lot sizes 2,000 to 200,000 pieces)Machining–––2,000 pieces – 200,000 piecesBrass, Steel, Stainless steel, Aluminium, Copper

11 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
CNC single-spindle automatic lathe––––Zeil am Main / Dunningen
CNC multi-spindle automatic lathe––––Zeil am Main / Dunningen
Rotary transfer machine––––Zeil am Main / Dunningen
Cam-controlled multi-spindle automatic lathes––––Zeil am Main / Dunningen
Rotary transfer machine––––Zeil am Main / Dunningen
Deburring machine––––Zeil am Main / Dunningen
Transfer and special-purpose machines––––Zeil am Main / Dunningen
Finishing machines––––Zeil am Main / Dunningen
Automatic assembly machine––––Zeil am Main / Dunningen
Handling robot (removal)––––Zeil am Main / Dunningen
High-bay warehouse––––Zeil am Main / Dunningen

Additional services

Machining of precision turned parts (CNC single-spindle, multi-spindle and rotary transfer machines)Assembly work/assembly of assembliesCoating for screw lockingNickel platingSilver platingChrome platingZinc platingHeat treatmentTin platingGold platingPolishingAnodisingScrew fasteningWelding on of contact materialsFlangingSurface coatingCustomer-specific storage/high-bay warehouseAutomated removal (handling robots)Deburring

Quality

Quality is ensured through regular staff training, continuously updated equipment and mature production processes; a quality management manager is responsible for this.

EvidenceZeil am Main
ISO 9001

History

  1. 2022

    Further investments in the CNC-controlled machine fleet

  2. 2023

    Contribution to CO2 reduction

  3. 2025

    Lead-free solutions in machining technology; appearances in Frankfurt am Main and Leipzig

  4. 2026

    Exhibition appearance at Electronica in Munich

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