Internal grinding
Internal grinding for high-precision metalworking
Discover the advantages of internal grinding at SUSA S. Sauer GmbH & Co. KG & Co. We offer precise and customized solutions for your components that guarantee the highest quality.
- More than 30 years of experience in the field: Internal grinding
- 200 qualified and experienced specialists
- Machine park of more than 100 systems
- 14,000 square meters of production space
Internal cylindrical grinding of workpieces with high precision
Internal grinding is a process that requires maximum precision. Internal grinding involves machining the insides of cylindrical components to achieve an exact shape and surface finish. This process is particularly important when the requirements for dimensional accuracy and surface quality are very high. Regardless of whether individual parts or series production is involved, internal grinding ensures precise results.
At SUSA S. Sauer GmbH & Co. KG, we offer internal grinding as part of our comprehensive machining options. We manufacture turned parts according to your individual specifications. If you need components with particularly tight tolerances, internal grinding is often the method of choice. With our modern equipment, we ensure that your parts are machined to perfection.
At SUSA S. Sauer GmbH & Co. KG, we offer internal grinding as part of our comprehensive machining options. We manufacture turned parts according to your individual specifications. If you need components with particularly tight tolerances, internal grinding is often the method of choice. With our modern equipment, we ensure that your parts are machined to perfection.
Internal grinding for demanding projects
Internal grinding is frequently used in industries such as mechanical engineering, the automotive industry and medical technology. Wherever maximum precision is required, this process is indispensable. At SUSA S. Sauer GmbH & Co. KG, we specialize in implementing even the most demanding projects.
Quality and reliability are our top priorities. Our experience and technical expertise enable us to precisely machine even complex components with internal grinding. We work closely with you to ensure that your requirements are met exactly. We attach great importance to fast turnaround times and smooth communication.
Internal grinding can be used for various materials, such as steel, stainless steel or aluminum. Our machines are able to guarantee consistently high quality, regardless of the material being processed.
If you would like to find out more about internal grinding or our other services, please do not hesitate to contact us. Let's work together to successfully implement your next project!
Quality and reliability are our top priorities. Our experience and technical expertise enable us to precisely machine even complex components with internal grinding. We work closely with you to ensure that your requirements are met exactly. We attach great importance to fast turnaround times and smooth communication.
Internal grinding can be used for various materials, such as steel, stainless steel or aluminum. Our machines are able to guarantee consistently high quality, regardless of the material being processed.
If you would like to find out more about internal grinding or our other services, please do not hesitate to contact us. Let's work together to successfully implement your next project!
Do you have any questions about Internal grinding?
Our service: Internal grinding
Internal grinding is a high-precision manufacturing process that plays a central role at SUSA S. Sauer GmbH & Co. KG. We use this process to machine the inner surfaces of turned parts in order to achieve an exact fit and surface quality.
Our customers come from various industries that demand the highest precision and quality - and that is exactly what we offer. Whether for mechanical engineering, the automotive industry or medical technology, internal grinding is crucial for the functionality and durability of the components that we manufacture for our customers.
Our customers come from various industries that demand the highest precision and quality - and that is exactly what we offer. Whether for mechanical engineering, the automotive industry or medical technology, internal grinding is crucial for the functionality and durability of the components that we manufacture for our customers.
Focus on precision and quality: your partner for sophisticated internal grinding
Precision and quality are our focus. Our high degree of automation and modern machinery enable us to produce both simple and complex workpieces using the internal grinding process. We attach great importance to on-time order processing and smooth production processes. Internal grinding is particularly important for components that require tight tolerances. Thanks to our specialized knowledge and our highly developed machines, we guarantee that every part meets the exact specifications of our customers.
Our specialists carry out in-process inspections to ensure that the highest standards are met. We use the latest measuring technology, such as 3D measuring machines and contour measuring devices, to check the accuracy of the manufactured parts. Checking the internal diameter is particularly crucial for internal grinding, as even the slightest deviations can impair the function.
As a medium-sized family business based in Heidenau near Dresden, we offer our customers flexibility and fast response times on a production area of around 14,000 square meters and with over 100 modern systems. Our ISO certifications ensure the consistently high quality of our products and guarantee our customers the reliability they expect. With our expertise in internal and external grinding, we are the ideal partner for precise and sophisticated turned parts.
Our specialists carry out in-process inspections to ensure that the highest standards are met. We use the latest measuring technology, such as 3D measuring machines and contour measuring devices, to check the accuracy of the manufactured parts. Checking the internal diameter is particularly crucial for internal grinding, as even the slightest deviations can impair the function.
As a medium-sized family business based in Heidenau near Dresden, we offer our customers flexibility and fast response times on a production area of around 14,000 square meters and with over 100 modern systems. Our ISO certifications ensure the consistently high quality of our products and guarantee our customers the reliability they expect. With our expertise in internal and external grinding, we are the ideal partner for precise and sophisticated turned parts.
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Request:
Internal grinding
- Just send us a short message and we will be happy to answer your questions by phone or e-mail.
Frequently asked questions on the subject: Internal grinding
What are the most important process parameters for internal grinding?
The decisive process parameters for internal grinding are:
- Cutting speed (vc): Influences the material removal rate and surface quality.
- Infeed (ae): Determines how much material is removed per grinding pass.
- Feed speed (vf): Regulates the processing time and influences the thermal load.
- Abrasive and grit: Decisive for cutting ability and surface quality.
- Cooling/lubricants: Prevents overheating and reduces grinding burn.
What are the advantages of internal grinding compared to other methods?
Internal grinding is characterized by the following advantages:
- Maximum dimensional accuracy: Enables tight tolerances in the µm range.
- Very good surface quality: Achieves values of Ra < 0.2 µm.
- Machining of hard materials: Suitable for hardened steels, ceramics and hard metals.
- High dimensional accuracy: Ideal for precise cylinder, cone and profile geometries.
- Efficient post-processing: Often used as the final processing step after turning or milling.
What challenges arise during internal grinding and how can they be solved?
Typical challenges and solutions:
- Vibrations (chatter marks): Use of vibration-damping grinding tools or reduction of the cutting speed.
- Grinding burn: Optimize cooling and reduce the thermal load by reducing the infeed.
- Uneven abrasion: Correct selection of abrasive grit and regular dressing of the grinding wheel.
- Workpiece deformation: Use of suitable clamping methods to minimize internal stresses.
- Short tool life: Selection of high-quality abrasive tools with an adapted bond and grain structure.
How does CNC internal grinding differ from conventional internal grinding?
CNC internal grinding offers significant advantages:
- Greater precision: Automatic correction of deviations and adaptive control of grinding parameters.
- Reproducibility: Ideal for series production, as every sanding process is identical.
- Integrated measuring technology: Inline measuring systems enable immediate corrections.
- Shorter set-up times: Programs for different workpieces can be saved and called up quickly.
- Processing of complex geometries: CNC technology enables contour and profile grinding to the highest standards.
Which tools and abrasives are used for internal grinding?
Various sanding tools and materials are used for internal sanding:
- CBN grinding wheels: High hardness, ideal for hardened steels and high-alloy materials.
- Diamond grinding wheels: Suitable for ceramics, carbide and glass.
- Corundum (aluminum oxide): Standard abrasive for general applications.
- Silicon carbide: Used for soft materials such as aluminum or brass.
- Hybrid and synthetic resin bonds: Improve service life and grinding behavior depending on the application.
Certifications & quality standards
Quality at every stage of production
We guarantee our customers first-class products and absolute precision. Customer requirements guide our actions and our decisions. We do a lot to achieve this:
Our ISO certification ensures the consistently high standard of our quality management. We work in accordance with DIN EN ISO 9001:2015 and IATF 16949:2016. We have been certified in accordance with the environmental standard DIN EN ISO 14001 and the energy standard DIN EN ISO 50001 since 2018.
- in-process inspections by qualified employees
- Use of highly developed measuring technology, e.g. 3D measuring machines, contour measuring devices, profile scanners, form measuring machines
- 100% inspection of high-volume parts for freedom from chips and important dimensions such as length, inner and outer diameter
Our ISO certification ensures the consistently high standard of our quality management. We work in accordance with DIN EN ISO 9001:2015 and IATF 16949:2016. We have been certified in accordance with the environmental standard DIN EN ISO 14001 and the energy standard DIN EN ISO 50001 since 2018.
Internal grinding for many sectors
Mining
Mechanical and plant engineering
Hydraulics industry
Plastics industry
High-voltage construction
Fittings industry
Bicycle industry
Communications engineering
Microelectronics
Electrical industry
Automotive
Our machinery
CNC-controlled single-spindle automatic lathes
- Automatic turret lathes (from 1,000 pieces - Ø20-65 from bar, up to Ø140 from saw blade, blank)
Index: ABC, G 200, C 100, C 200 (partly with Y-/B-axis / eccentric turning / handling)
Muratec: MT-12 GMC (with handling), MT200G/T2 and T3, MW 40, MW 50, MW 120, ML 400 (with handling, Y-axes)
Takamaz: X-100, X-12 MC (with handling)
- Sliding headstock automatic lathes (from 1,000 pieces - Ø4-32)
Citizen: C16, L20, M16, M32
Tornos: Deco 2000 (up to Ø 13/20/26), Deco Sigma (up to Ø 20/32), EvoDeco (up to Ø 32)
Hanwha: XD16H, XD26H-S
CNC-controlled multi-spindle automatic lathes (from 25,000 pieces - Ø4-52)
- Tornos: 6- and 8-spindle machines: MultiDeco 20.8b, MultiSigma 8x24, MultiSwiss 6x14, MultiSwiss 8x26
- Index: 6- and 8-spindle machines: MS 32 C with robot, MS 22-8 C, MS 40 /6 and /8, MS 40 C with robot
CNC-controlled rotary transfer machines
- Pfiffner: Hydromats HB 45/12 CNC, HB 32/16 CNC, HC 32-16 EPICplus
Cam-controlled six-spindle automatic lathes (from 50,000 pieces - Ø4-17)
- Tornos: SAS 16.6
Other machines
- CNC grinding machines (Studer: Favorit, S31, S33; Mikrosa: Kronos S 125, Kronos S 250, Kronos M 250, SR5, Profiltec)
- Mass finishing systems
- Sandblasting machines
- Broaching machines
- Thread rolling machine
- Honing machines from Sunnen
- Worm milling machine and roller burnishing machine (Monnier & Zahner)
- CNC tool grinding machines for the production of forming tools/cutting plates
- Optical measuring and sorting systems
- Parts cleaning systems
- Fully automatic system for chip removal and disposal
- CNC-controlled milling center (from 100 pieces - Ø 500 max. clamping surface)
Mori Seiki: NMV 5000 DCG
