
Automatic turned parts ø 4–16 mm in medium and large batches, manufactured exclusively on CNC multi-spindle machines with 100% sorting.

RB Cema AG
4562 Biberist, SwitzerlandNew on Amplifa
The Company
RB Cema AG is a specialised manufacturing company for automatic turned parts in medium and large batches, based in Biberist in the canton of Solothurn. Production is carried out exclusively on CNC multi-spindle automatic lathes from Tornos; turned parts with diameters from 4 mm to 16 mm are manufactured, and in exceptional cases even smaller. The machine park comprises 20 multi-spindle machines with loading magazines for automated production, as well as attachment devices for milling, drilling, polygon turning and thread machining. All parts undergo 100% inspection or optical sorting. The company was founded in 1993, employs ten staff and is certified to ISO 9001:2015. The automatic turned parts are produced for all industrial sectors.
- Site
- Biberist
- Processes
- Automatic turned parts on multi-spindle machines (turning), Turning on CNC multi-spindle automatic lathes, Cam-controlled turning on multi-spindle automatic lathes, Milling (milling attachment, polygon milling attachment, circumferential milling attachment), Drilling (cross drilling attachments, deep-hole drilling with high-pressure pump), Thread milling, Thread rolling, Thread cutting
- Materials
- CNC multi-spindle turning, Milling, Drilling, Thread machining, Polygon turning
- Certificates
- ISO 9001:2015, ISO 9001
- Founded
- 1993
- Employees
- 10
- Industries
- Industrial sectors (general), Industrial sectors (general, automatic turned parts)
- 01
Quotation
- 02
CNC multi-spindle turning with attachment devices
- 03
Optical 100% inspection/sorting
- 04
Shipping
Processes and Attachment Devices
CNC multi-spindle turning
Exclusive production of automatic turned parts ø 4–16 mm on 20 Tornos multi-spindle automatic lathes with loading magazines.
Milling
Milling attachments, polygon milling attachment and circumferential milling attachment for machining cross surfaces and contours on the turned part.
Drilling
Cross drilling attachments and deep-hole drilling with high-pressure pump on the SAS 16.6.
Thread machining
Thread milling, thread rolling and thread cutting as complementary processes within the multi-spindle process.
Polygon turning
Polygon attachment or polygon milling attachment for polygonal and multi-flat geometries.
Location

Biberist
CHProduction and administration
- Part weight / size
- ø 4–16 mm
- Lot size
- Medium and large batches
- Materials
- Automatic turned parts for all industrial sectors
- 4 Tornos Multiswiss 6x16 CNC multi-spindle automatic lathes with loading magazine
- 11 Tornos SAS 16.6 cam-controlled multi-spindle automatic lathes with loading magazine
- 1 Tornos SAS 16 cam-controlled multi-spindle automatic lathe
- 4 Tornos AS 14 cam-controlled multi-spindle automatic lathes
- Vester VIDEOcheck VVC 811 and VVC 110 inspection machines
- Sontec Sonrond camera inspection machine
- METAG camera inspection machine
- Hommel Opticline C203
Automatic Turned Parts

Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Automatic turned parts on multi-spindle machines (turning)Machining | – | ø 4 mm to ø 16 mm diameter | – | medium batches – large batches | – |
| Turning on CNC multi-spindle automatic lathesMachining | – | ø 16 mm | – | – | – |
| Cam-controlled turning on multi-spindle automatic lathesMachining | – | ø 16 mm | – | – | – |
| Milling (milling attachment, polygon milling attachment, circumferential milling attachment)Machining | – | – | – | – | – |
| Drilling (cross drilling attachments, deep-hole drilling with high-pressure pump)Machining | – | – | – | – | – |
| Thread millingMachining | – | – | – | – | – |
| Thread rollingForming | – | – | – | – | – |
| Thread cuttingMachining | – | – | – | – | – |
| Polygon turning (polygon attachment)Machining | – | – | – | – | – |
| Optical 100% inspection / sortingTesting | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC multi-spindle automatic lathe | Tornos Multiswiss 6x16 | 4 | ø 16 mm max. turning diameter | – | Biberist |
| Cam-controlled multi-spindle automatic lathe | Tornos SAS 16,6 | 11 | ø 16.6 mm max. turning diameter | – | Biberist |
| Cam-controlled multi-spindle automatic lathe | Tornos SAS 16 | 1 | ø 16 mm max. turning diameter | – | Biberist |
| Cam-controlled multi-spindle automatic lathe | Tornos AS 14 | 4 | ø 14 mm max. turning diameter | – | Biberist |
| Inspection machine | Vester VIDEOcheck VVC 811 | 1 | – | – | Biberist |
| Inspection machine | Vester VIDEOcheck VVC 110 | 1 | – | – | Biberist |
| Camera inspection machine | Sontec Sonrond | 1 | – | – | Biberist |
| Camera inspection machine | METAG | 1 | – | – | Biberist |
| Opticline inspection machine | Hommel C203 | 1 | – | – | Biberist |
Additional services
Quality
All manufactured parts undergo optical 100% inspection or sorting on inspection and camera inspection machines from Vester, Sontec, METAG and Hommel. The quality management system is certified to ISO 9001:2015 (Swiss Safety Center AG).
| Evidence | Biberist |
|---|---|
| ISO 9001 |
History
- 1993
Founded by Hubert Brülhart and Rudolf Renfer with four multi-spindle machines.
- 1997
First certification to ISO 9001 by the Swiss Safety Center.
- 2014
Taken over by Patrick Schlatter and Michael Wächter; expansion of the CNC multi-spindle machine area and 100% sorting.
- 2024
Recertification to ISO 9001:2015, valid until 04.06.2027.