Manufacturing of special screws, special nuts, turned parts and fastening elements to drawing
Sternberg GmbH
Hohenstein-Ernstthal, Saxony · Hockenheimer Str. 5, 09337New on Amplifa
About Sternberg
Sternberg GmbH is a screw factory based in Hohenstein-Ernstthal in Saxony and manufactures special screws, special nuts, turned parts and other fastening elements to drawing as well as DIN screws in small batch sizes. The product range includes stud bolts, head screws and flange bolts with external or internal hexagon drive and special head shapes, nuts to drawing, cap nuts, sleeves and washers. The value chain ranges from induction hot forming to turning (CNC and conventional), thread rolling and thread cutting, through to milling, drilling, grinding including centerless grinding and special machining; serrated flanks are used to transmit high torques. Thread manufacturing covers metric, inch, trapezoidal (Tr), tapered and special threads. The company is export-oriented and serves customers in fastening technology as well as in the Mining & Metals sector. According to the company's own account, its tradition of solving fastening problems goes back more than 100 years.
- Site
- Hohenstein-Ernstthal
- Processes
- Hot forming (induction), Turning (CNC and conventional), Thread manufacturing (rolling and cutting), Milling, Drilling, Grinding (also centerless), Special machining, Manufacturing of special screws, special nuts, turned parts and fastening elements (stud bolts,
- Materials
- Hot forming (induction), Turning (CNC and conventional), Thread rolling and thread cutting, Milling, drilling, grinding (also centerless), Serrated flanks
- Certificates
- Destructive and non-destructive testing methods
- Industries
- Fastening technology, Mining & Metals
- 01
Hot forming (induction)
- 02
Turning (CNC and conventional)
- 03
Thread rolling and thread cutting
- 04
Milling, drilling, grinding (also centerless)
- 05
Special machining
- 06
Quality inspection
Processing Capabilities
Hot forming (induction)
Induction hot forming for the production of screws and fastening elements.
Turning (CNC and conventional)
Manufacturing of turned parts and screw blanks to drawing.
Thread rolling and thread cutting
Production of metric, inch, trapezoidal (Tr), tapered and special threads.
Milling, drilling, grinding (also centerless)
Secondary machining including centerless grinding for tight tolerances.
Serrated flanks
Serration for transmitting high torques in bolted connections.
Location
Hohenstein-Ernstthal
DEHeadquarters / Production
- Lot size
- small batch sizes (DIN screws), parts to drawing
- Materials
- Steel (screws/turned parts)
- CNC lathes
- Centerless grinding machine
- Optical shaft measuring machine
- Contourograph
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Hot forming (induction)Forming | – | – | – | – | – |
| Turning (CNC and conventional)Machining | – | – | – | – | – |
| Thread manufacturing (rolling and cutting)Machining | – | – | – | – | – |
| MillingMachining | – | – | – | – | – |
| DrillingMachining | – | – | – | – | – |
| Grinding (also centerless)Machining | – | – | – | – | – |
| Special machiningMachining | – | – | – | – | – |
| Manufacturing of special screws, special nuts, turned parts and fastening elements (stud bolts,Forming | – | – | – | small batch sizes | – |
| Thread manufacturing: metric, inch, trapezoidal threads (Tr), tapered threads and special threadsMachining | – | – | – | – | – |
| Tensile testingTesting | – | – | – | – | – |
| Contourograph measurementTesting | – | – | – | – | – |
| Optical shaft measuring machineTesting | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC lathe | – | – | – | – | Hohenstein-Ernstthal |
| Optical shaft measuring machine | – | – | – | – | Hohenstein-Ernstthal |
| Contourograph | – | – | – | – | Hohenstein-Ernstthal |
| Centerless grinding machine | – | – | – | – | Hohenstein-Ernstthal |
Additional services
Quality
To ensure quality, destructive and non-destructive testing methods are used, including tensile testing, contourograph and an optical shaft measuring machine.
| Evidence | Hohenstein-Ernstthal |
|---|---|
| Destructive and non-destructive testing methods |
Tradition
Tradition in the manufacturing of special screws for more than 100 years (according to company information)