CNC machining, stainless steel and sheet metal processing as well as welding work for mechanical engineering and the supplier industry
Schlosserei & Maschinenbau Thomas Sonntag
Chemnitz (OT Klaffenbach) · GermanyNew on Amplifa
About us
Schlosserei & Maschinenbau Thomas Sonntag is a family-run craft business founded in 1976 and based in Chemnitz-OT Klaffenbach. The company produces CNC milled and drilled parts on five-axis machining centers as well as CNC turned parts with main and counter spindles, especially from stainless steel. In addition, the range of services includes sheet metal processing up to 6 mm, welding work such as stairs, railings, window gratings, garden gates and machine frames up to approx. 500 kg as well as single-part and spare-part production. The company operates as a supplier for well-known firms from various sectors and also produces for private customers. Production takes place in a workshop that has been extended several times in Chemnitz; the QM system is certified to DIN EN ISO 9001:2015 by TÜV SÜD.
- Site
- Chemnitz (OT Klaffenbach)
- Processes
- CNC drilling and milling work (5-axis), CNC turning, Conventional turning, Stainless steel processing, Sheet metal processing (guillotine shear, swing bending), Welding work (stairs, railings, window gratings, garden gates, machine frames), Sawing (metal circular saw, fully automatic band saw), Drilling (various drilling machines)
- Materials
- Stainless steel, Steel/sheet metal, Plastic (sealing cones, wipers), Plastic
- Certificates
- DIN EN ISO 9001:2015
- Founded
- 1976
- Industries
- Mechanical engineering, Metal processing, Supplier industry, Private customers
- 01
Sheet metal processing (cutting, bending)
- 02
Sawing and drilling
- 03
CNC milling (5-axis)
- 04
CNC turning
- 05
Welding
- 06
Finishing / Sales
Materials & Processes
Stainless steel
Focus of machining, sheet metal and welding work, among other things for sampling lances and stainless steel components.
Steel/sheet metal
Sheet metal processing up to 6 mm and welded constructions such as frames, gratings and gates.
Plastic
Used for sealing cones and wipers on the sampling lance.
Sites
Chemnitz (OT Klaffenbach)
DEWorkshop / Production
- Part weight / size
- Machine frames up to approx. 500 kg
- Materials
- Stainless steel, steel, plastic
- Hermle C 800 U (5-axis machining center)
- Hermle C 30 U (5-axis machining center)
- Hermle C 12 U (5-axis machining center)
- DMG DMC 1450 V (3-axis machining center)
- Gildemeister CTX 320 linear (CNC lathe)
- Index G200 (CNC turn-mill center)
- Conventional lathe dm 250 x 800 mm
- Guillotine shear 2 m up to 6 mm
- Swing bending machine 2 m
- Metal circular saw VKS 350
- Band saw fully automatic 350
- Mandrel, spindle and hydraulic presses, profile shear, drilling machines
Parts & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC drilling and milling work (5-axis)Machining | – | 540 mm clamping area (dm 630) | – | – | Stainless steel |
| CNC turningMachining | – | 660 mm turning length (Index G200) | – | – | Stainless steel |
| Conventional turningMachining | – | 800 mm | – | – | – |
| Stainless steel processingMachining | – | – | – | – | Stainless steel |
| Sheet metal processing (guillotine shear, swing bending)Forming | – | 2 m × 2 m | – | – | Steel, Stainless steel |
| Welding work (stairs, railings, window gratings, garden gates, machine frames)Joining | – | – | approx. 500 kg | – | Steel, Stainless steel |
| Sawing (metal circular saw, fully automatic band saw)Machining | – | – | – | – | – |
| Drilling (various drilling machines)Machining | – | – | – | – | – |
| Presses (mandrel, spindle, hydraulic press), profile cuttingForming | – | – | – | – | – |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis machining center with swivel rotary table | Hermle C 800 U | 1 | X=800 / Y=600 / Z=500 mm, clamping area 540x540 mm (dm 630) | – | Chemnitz |
| 5-axis machining center with swivel rotary table | Hermle C 30 U | 1 | X=650 / Y=600 / Z=500 mm, clamping area 540x540 mm (dm 630) | – | Chemnitz |
| 5-axis machining center with swivel rotary table | Hermle C 12 U | 1 | X-Y-Z: 350-440-330 mm, rotary table dm 320 mm | – | Chemnitz |
| 3-axis machining center | DMG (Deckel Maho) DMC 1450 V | 1 | X=1450 / Y=700 / Z=550 mm, clamping area 1760x750 mm | – | Chemnitz |
| CNC lathe | Gildemeister-Graziano CTX 320 linear | 1 | Turning diameter approx. 200 mm, counter spindle, driven tools, Y-axis | – | Chemnitz |
| CNC turn-mill center | Index G200 | 1 | Main and counter spindle, 3 tool holders with Y-axis, B-axis, 65 mm bar passage, 660 mm | – | Chemnitz |
| Conventional lathe | dm 250 x 800 mm | 1 | dm 250 x 800 mm | – | Chemnitz |
| Guillotine shear | – | 1 | 2 m, sheet up to 6 mm | – | Chemnitz |
| Swing bending machine | – | 1 | 2 m | – | Chemnitz |
| Metal circular saw | VKS 350 | 1 | Cross-section 100 x 100 mm | – | Chemnitz |
| Band saw fully automatic | 350 | 1 | Cross-section 300 x 250 mm | – | Chemnitz |
| Mandrel, spindle and hydraulic presses, profile shear, drilling machines | – | – | – | – | Chemnitz |
Additional services
Quality
The quality management system is certified by TÜV SÜD to DIN EN ISO 9001:2015 (certificate no. 12 100 13014 TMS, valid until 06.09.2027). The scope covers CNC drilling and milling work, CNC turning work, stainless steel, welding and sheet metal work.
| Evidence | Chemnitz (OT Klaffenbach) |
|---|---|
| DIN EN ISO 9001:2015 |
History
- 1976
Business founded on 1 January as Schlosserei Peter Sonntag in the garage of the residential house; workshop construction started on 15.06.1976.
- 1977
Occupancy of the new workshop building
- 1990
Doubling of production space through workshop extension; separation of metal shop and mechanical production
- 1992
Introduction of CNC technology
- 2000
Certification to DIN EN ISO 9002:1994 in September
- 2001
25th company anniversary on 06.01.2001
- 2003
Migration of the QM system to DIN EN ISO 9001:2000 (September); workshop extension 07.2003–03.2004
- 2011
Company handed over to the 2nd generation, Thomas Sonntag, on 04.04.2011
- 2015
Death of the company founder Peter Sonntag on 11.06.2015; start of another workshop extension
- 2017
Use of the extension building from early 2017
- 2018
Migration of the QM system to DIN EN ISO 9001:2015 in September