Around 1830 Jacob Weisser operated a post station with a smithy for hooves and carriages in Langenschiltach. Already in 1830, his son Johann Georg Weisser and two helpers manufactured small bench lathes and bench vices in the smithy.


With the opening of the new post smithy, which did no longer lead through Langenschiltach, Weisser was urged to move location. He left Langenschiltach in 1842 and built a smithy in St. Georgen, which was 4 km away and situated at the newly built post road.


The new road brought an economic revival to the town. As clock-making was the main source of income for the population in this region at that time, also the demand increased for tools and bench lathes for this handcraft. In order to be able to cope with the continuously increasing demand, Johann Georg Weisser bought a new and bigger factory building in the year 1855. Nowadays, this building still exists on the factory premises of the company J.G. WEISSER SÖHNE.


With the foundation of the machine factory J.G. WEISSER SÖHNE in the year 1856, the factory-made production of machines and tools had started. Shoeing of post and transport horses was no longer practiced at the new location. Nevertheless, up to today the name “Postschmiede” (post smithy) is still associated with the company WEISSER, particularly in the regional language use of collaborators and also inhabitants of St. Georgen.


Development of a single spindle machine for the production of cutting parts and screws. ZH7ZC, with drum curves for material advance and transverse slides, with disc curves for two transverse slides as well as a drilling and transverse turning machine mit three working stations, with shank shaft drive and coupling for each station.


Development of the first front operated chucking machine: “Frontor” with short machine bed, as 80% of all turning parts are shorter than their diameters. Crucial trend in turning machine construction.


Development of first numerically controlled turning automatic “Frontor25” with BBC 2-axes path control and patented piston clamping for the hydraulic slide units.


Development of turning spindle machine DZ. This is a turning machine with swivelling and tapered spindle carrier. While the horizontal turning spindle operates the workpiece, the vertical turning spindle is loaded and unloaded. Due to the swivelling of the turning spindle into the working area, the idle time is clearly reduced. The DZ 300 was mainly used to operate workpieces that were big and difficult to clamp.


Development of “Hard turning instead of grinding”. Workpieces like gears for cars and gearbox shafts had been hardened after the turning process and were then ground. The required surface quality had been reached by hard turning. The complex grinding process was omitted. High stability of WEISSER turning machines as well as the further development of cutting materials have also been decisive for the succes of hard turning. Today, this technology represents a standard in modern production.


Development of the vertical turning machine series VERTOR. The VERTOR was developed as stable, compact and cost-efficient vertical turning machine. The machine being mainly hand-loaded is build as two-axes and four-axes model. In its automised version, the VERTOR counts among the most successful piston turning machines.


Construction of the first PICK-UP turning machine according to WEISSER patent dated 1987. In this year the hitherto existing construction method for turning machines was completely redefined. A movable Pick-up motor spindle takes the workpiece from a transport conveyor in order to operate it and delivers the finished part at the same place. Thanks to the easy loading and unloading - which in former times needed complex and expensive gantries - these machines became more compact and economically priced. Today, this machine concept characterizes the production of rotationally symmetric workpieces.


Multi-function machine series A for turning, drilling, milling, grinding and further operations. The Pick-up turning machine series UNIVERTOR A have been adapted according to the markt requirements. Additional operations as mentioned above had been considered in this machine concept. By this integration of further procedures, the machine series had been developed towards a multi-functional turning centre.


Development of the new techniques “Rotational turning” and “Magnetic spindle technique”. From now on it is possible to produce surfaces without lead to satisfy highest requirements. By the patented rotational turning technology developed by WEISSER, complex finishing operations like grinding, rolling and bandfinishing are replaced. The “Magnetic spindle technique” is used for the production of piston pin boreholes and is protected by our patent. This novelty offers immense advantages compared to the conventional roller bearing spindles:

  • Wear-free rotation movement
  • Increase of reliability and durability
  • No need for lubricant
  • Precision operation in micrometer area by systematic deflection of spindle
  • Grafic analysis of the position of the Tool Center Point (TCP) for optimization of various forms.


Bringing the procedures “Rotational turning” and “Magnetic spindle technique” onto the market.
Thanks to the "Rotational turning" it is from now on possible to produce surfaces being free of lead and satisfying highest requirements. By the “Rotational turning” technique developed by WEISSER, for which we have applied a patent, complex finishing operations like grinding, rolling and bandfinishing can be replaced. The "Magnetic spindle technique" as a new principle for high-dynamic adjustment movements represents the travelling of a rotating spindle in the magnetic field. Thus, for form drilling it is not only possible to modify the diameter depending on the drilling depth, but it is also possible to modify the shape of the circle, e.g. towards the ovality.


150 years J.G. WEISSER SÖHNE
Preparations with regard to the company's anniversary. It is not only necessary to plan the entire anniversary year, but also new, modern products with continuative technologies shall be shown in this year.


The process of camless turning is refined by means of the WEISSER unit HOT V 3  for increased dynamics. The application spectrum is extended to polygonal forms with large travels.


Presentation of the first “green” turning machine – “Weisser” greenplus ® at the EMO exhibition at Milan. This intelligent combination of machine and process provides energy savings up to 25 %.


Together with the company Kapp Coburg WEISSER launches the systems integration WEISSER-KAPP MultiCELL for hard fine turning of gears.


With whirling of pocket windows in brass cages WEISSER is convincing at the METAV in Düsseldorf.


The E-machine is presented at the AMB exhibition at Stuttgart. This energy-efficient machine concept is on a consequent electrical base and works without any hydraulic or pneumatic actuators.


Dedication of the new technology factory. Thanks to the new machine shop WEISSER extends its possibilities for the manufacture of particularly large machine types.


"WEISSER celebrates the 160th  company anniversary with a big family party and gets a new street name for its birthday.   Bundesstraße 1 turns officially into Johann-Georg-Weisser-Straße 1.“