Concentrated competence

The suitable form turning technology for your production

Partnership-based cooperation for greater success

We put our collected knowledge about form turning technology at the service of our customers. You can take advantage of all the benefits that form turning with ZWT tools offers.

We don't just leave you alone with one tool, but accompany and optimize your process - from initial consultation, tool design and tool construction through to resharpening service.

This is ZWT

Form turning technology - in sum the turning process, which usually offers more economic efficiency and safety. ZWT has specialized and focused on form turning technology. The result is that ZWT is excellently positioned with regard to all important parameters - such as experience, advice, service and quality. No matter which toolholding system you use: ZWT stands for the optimum in form turning and other high-precision tool processes.
ZWT was first certified according to DIN EN ISO 9002 in 1999. In 2010, ZWT was converted to the new DIN EN ISO 9001:2015 standard and successfully renewed on a regular basis.


Founded: 1991; management Siegfried Zisterer, Bettina Bernhard.

Customers: Renowned customers from Europe, Asia, South and North America.

Industries: Automotive (hydraulics, pneumatics, transmissions, engine technology ...), ball bearings, textile components, mechanical and plant engineering, electronics, electrical appliances, household appliances, safety technology, fittings, medical technology ...

Speciality: State-of-the-art special machine park for tool manufacture, e.g. high-end grinding machines, in-house coating.

You can find ZWT in Spaichingen, between Stuttgart and Lake Constance, in the middle of a region which represents one of the focal points of European turned parts production. Short distances to all important Central European industrial centres, excellent logistical connections and an attractive landscape with many natural beauties: This is a good place to live and work.

Since the mid-1990s, ZWT has also had an agency in Scandinavian Finland. North of Helsinki, the ZWT agency is located in Vantaa, Finland's fourth largest city.

Headquarters Spaichingen

ZWT Zisterer GmbH & Co. KG
Eschenwasen 14
D-78549 Spaichingen

Tel. +49 (0) 74 24 - 9 40 40
Fax +49 (0) 74 24 - 9 40 43 0



Representative Finnland

Haag Oy 17105
Vapaalantie 91B
FI - 01650 Vantaa

Tel: 00358/010 505 0420