Innovation in separation technology

ALWAYS A MORE PRECISE CUT

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Innovative separation process
for rings with multicut system

About us

Since 1999 we have been developing innovative cutting machines for machining large rings – from initial prototypes to solutions for diameters up to 5,300 mm. Our technology has received numerous awards, including the German Material Efficiency Award and the CyberOne High-Tech Award. As a highly innovative company, we stand for quality, precision and continuous development.

German presentation
Presentation English

technology

The ring separation method of
PTZ WEIDNER with multicut system

Your partner for national & international industry

Our clientele includes blacksmith shops, foundries, companies in the mechanical engineering sector, as well as chemical and plant engineering. The wind power industry, hydrogen industry, food industry and ball bearing industry also rely on our experience, precision and reliability in machining large-scale rings and components. We can count not only medium-sized businesses, but also global players among our customer base

Contact

30+
Years of experience

Wage race

We process and manufacture high-quality steel rings on your behalf

With our innovative separation process, we can produce rings of various sizes, diameters, and wall thicknesses. Materials such as Dublex, titanium, stainless steels, heat-resistant steels, and copper are precisely separated and further processed using PTZWEIDNER technology according to requirements.

Finishing

PTZ WEIDNER takes over the entire manufacturing process of steel rings

From sourcing the blanks to efficient and resource-saving separation at the GIANT RING CUTTER, to further and final processing, you get everything from one source. The GIANT RING CUTTER, in combination with other processing methods (e.g., turning), allows us to continuously process the generated rings until the final product.

Our machinery, including GRC4500-600CNC cutting machine, GRC2500-500CNC cutting machine and Böhringer CNC lathe with a turning diameter of approximately 1,000 mm, enables fast delivery times and the best surface quality.

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Learn more about PTZWEIDNER technology

There is nothing we cannot separate

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structural steels
e.g.: 1.0116, 1.0570

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Unalloyed, alloyed heat-treated steels
e.g.: 1.0503, 1.0601, 1.7225, 1.6582

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Warm-resistant steels
e.g.: 1.0426, 1.5415, 1.6368, 1.4922

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Fine-grained structural steel
e.g.: 1.0487, 1.8932, 1.8933

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stainless steels
e.g.: 1.4301, 1.4404, 1.4541, 1.4571

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Duplex
e.g.: 1.4462, 1.4410, 1.4501

Together for the region

Visit from the mayor

PTZ Weidner welcomed the mayor of the city of Balingen, Helmut Reitemann, for a company visit. The focus was on exchange about the regional economy and insights into our innovative technologies.

Visit from the Minister of Economic Affairs of Baden-Württemberg, Dr. Hoffmeister Kraut

PTZ Weidner was pleased to welcome Dr. Nicole Hoffmeister-Kraut, Minister of Economic Affairs of Baden-Württemberg, to the company. The visit offered exciting insights into our technologies as well as a valuable exchange about innovation and SMEs.

Insights & Updates

Insights & Updates

Gain up-to-date insights into our projects, developments, and daily business operations. On our LinkedIn profile, we regularly share news, innovations, and impressions directly from the first hand.

To LinkedIn

Do you have any further questions?
We provide answers

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In which industries are our rings used and for what purpose?
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Industries:

  • Mechanical Engineering

  • Mining

  • Armor

  • Aerospace

  • Wind turbine construction

  • Chemical and plant engineering

  • Offshore technology

  • Commercial vehicle construction

  • Shipbuilding

  • Electric motor construction

  • Medical Technology

  • Hydrogen plants (e.g. B. Electrolyzers)

Uses (rings as):

  • flanges

  • Print rings

  • Cell rings

  • Sealing rings

  • Turbine rings

  • Setting rings

  • Bearing rings

  • rotating rings

  • Short-circuit rings

  • Gears

What are the benefits for our customers?
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Cost benefits:

  • Less usable material

  • Lower energy consumption

  • Lower tooling, setup and machining costs

  • Faster manufacturing times

Quality advantages:

  • Deformation-free rings

  • High plan level

  • Very good surface quality

Additional services (on request):

  • Material procurement including factory certificate/TÜV

  • Optimization of components

  • Wage race of individual rings

  • Pre- and final processing according to drawing

  • Heat treatment and finishing

  • Organization of transports

What dimensions can we separate? (Outer diameter, inner diameter, height, wall thickness)
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Example dimensions:

  • Outer diameter: up to 3,500 mm, larger after consultation

  • Smallest inner diameter: 150 mm

  • Wall thickness: up to 430 mm

  • Height (separate ring height): minimum 3 mm, maximum after consultation

How precise are the cutting edges?
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  • Plan flatness: up to 0.1 mm

  • Temperature during separation: approx. 25 °C → cold, deformation-free method

  • Special accuracy in surface quality: e.g. B. 1.293 Ra

  • The separation cuts are so precise that direct further processing or end use is possible.

How wide is the separation gap?
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The separation gap is 3 mm to 4.5 mm, depending on the wall thickness.

What services / special solutions do we offer?
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  • Material procurement, also with factory certificate and TÜV inspection

  • Optimization of components

  • Wage race of single rings

  • Pre- and final processing according to drawing

  • Heat treatment

  • Refinement of the rings

  • Transport organization

  • Traceability by restamping permission until the finished ring

  • Precision separation technology also for Hydrogen applications with the highest requirements

  • Machining of a wide variety of materials, including nickel-based, titanium, aluminum, stainless steels, duplex, etc.