Welcome to the GrindingHub web sessions!

Brings solutions to the surface - under this slogan, the digital format of the international trade fair will start in October 2021. Exhibitors at GrindingHub 2022 will offer you a foretaste of what you can experience on site next year at the new leading trade fair for grinding technology and superfinishing during the web sessions. Until then, the Web Sessions will be held monthly on changing topics focusing on the entire process chain.

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Data protection at GRINDINGHUB digital (and associated web sessions)

Hello and thank you for your interest in our website. For reasons of better readability alone - in the context of the following explanations - the simultaneous use of masculine and feminine and various forms of language is dispensed with. All personal designations apply to all genders: m/f/d. In addition to these and other things, we also take your rights to privacy, data protection and informational self-determination very seriously. Therefore, we would like to inform you about the following:

Who are we? Who is responsible for data protection at our company?

1. Person in charge

(1) The responsible party within the meaning of the EU General Data Protection Regulation (GDPR), other data protection laws applicable in the Member States of the European Union (EU) and other provisions of a data protection nature is:

VDW e.V.
Lyoner Straße 18
60528 Frankfurt am Main
Phone: + 49 69 756081-0
Mail: privacy@vdw.de
Internet: vdw.de

2. data protection officer You can reach our data protection officer as follows:
Scheja und Partner Rechtsanwälte mbB
Adenauerallee 13
653113 Bonn
Phone: +49 228 227 226-0
Mail: info@scheja-partner.de


(1) "Personal data" means any information relating to an identified or identifiable natural person. An identifiable natural person is one who can be identified, directly or indirectly, in particular by reference to an identifier such as a name, an identification number, location data, an online identifier or to one or more factors specific to the physical, physiological, genetic, mental, economic, cultural or social identity of that natural person.

(2) "Special categories of personal data" means data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, or trade union membership, as well as genetic data, biometric data uniquely identifying a natural person, health data, or data concerning a natural person's sex life or sexual orientation.

(3) In all other respects, the (further) definitions of Art. 4 GDPR shall apply.

What happens when using the GRINDINGHUB digital as well as Web Sessions website on the operator's portal?

(1) For technical reasons, the operator of this website automatically stores and collects server log data (log files), which are transmitted by your browser. The data stored by the server is not assigned by us to any natural persons. The following data may be collected:

  • Information about the type of browser and the version used, as well as the language of the browser
  • operating system of the user
  • The Internet service provider of the user
  • The IP address of the user
  • Date and time of access
  • Websites from which the user's system accesses our website (referrer)
  • Websites that are accessed by the user's system via our website.

We receive this data via cookies and directly from your browser.

(2) The processing of the data serves to deliver the contents of our website, to ensure the functionality of our information technology systems and to optimize our website. The data of the log files are always stored separately from other personal data of the users.

Please understand that the log files are absolutely necessary for the security and protection of this website.


The operator of the website or the software installed on the server uses cookies. Cookies are data that are stored by the Internet browser on the user's computer system. The cookies can be transmitted to a page when it is called up and thus enable the user to be identified. Cookies help to simplify the use of websites for the users by enabling extended functionalities (e.g. dispensing with the need to enter a password). Cookies only store your login information and usually cannot cause any damage to your computer. You can define the storage period of your cookie yourself in the browser settings and delete cookies on your computer yourself at any time. Cookies are technically necessary to verify you as a registered user. We therefore point out that if cookies are deactivated, it is possible that not all functions of our website can be fully used.

Registration for GRINDINGHUB digital (incl. web sessions) and user data

(1) Participation in GRINDINGHUB digital requires free registration. The following data will be collected:

  • Salutation [mandatory]
  • First name / last name [mandatory]
  • Country of the participant
  • Company [mandatory]
  • Professional function within the company
  • Telephone number
  • E-mail address [mandatory]
  • Password (for access)

So when communicating digitally in the course of GRINDINGHUB, the data you have deposited during registration will be processed.

(2) This information is used for personalization, identification and verification (accurate address and protection against misuse), the occasion-related contact within the web session, as well as statistical surveys. The processing of this registration data is necessary for the exercise of our legitimate interests and for the provision of our offers and services.

(3) Only you know the reasons for registration; the reaction to this immediately describes the purpose of our processing.

(4) Furthermore, we ask optionally whether the mentioned GRINDINGHUB digital registration data may be stored by the operator for further GRINDINGHUB digital and informational contacting of the operator via e-mail.

(5) If you do not consent to the storage of your data as described in (4) above, your registration data will be automatically deleted after a period of 3 years in accordance with Art. 17 of the German Data Protection Regulation (GDPR). After this, a new registration would be necessary for future digital trade fair events.

(6) We also require the data you provide in the course of registration in order to be able to contact you in response to a corresponding inquiry or for any other reason. addition, your data will be stored by the exhibitor in the event of an active, digital exchange of business cards at the trade fair stand and processed, among other things, for the purpose of contacting you. In addition, as a trade fair organizer, we may allow ourselves - on the basis of legitimate interest pursuant to Art. 6 (1) lit. f GDPR - to contact you for future VDW trade fair events.

(7) When registering for GRINDINGHUB digital, we use the so-called double-opt-in procedure. This means that after your registration we will send you an e-mail to the e-mail address you have provided in which we ask you to confirm that you complete this registration and wish to receive mails in the context of GRINDINGHUB digital. If you do not confirm your registration within 24 hours, your information will be blocked and automatically deleted after one month. In addition, we store your respective IP addresses used and times of registration and confirmation. The purpose of this procedure is to be able to prove your registration and, if necessary, to clarify any possible misuse of your personal data. The legal basis for this processing is Art. 6 para. 1 p. 1 lit. f GDPR.

Use of Facebook counting pixels (also "Facebook Connect")

Via Facebook, pixel-sized files, so-called pixels (also called Facebook pixel or tracking pixel) can be set. When the website is called up, this pixel is also retrieved from the Facebook server. First, technical information such as browser, operating system, IP address and access data (date, time, geographical information) are retrieved. This serves, among other things, to improve this offer and to improve the user interface. This also includes click and surf behavior, i.e. when which pages are open for how long and what was particularly interesting on these pages, e.g. how long the scroll wheel did not move. Technically, this behavior can be assigned to individual users, but it is neither our nor Facebook's aim to observe individual users, but rather to create a better user interface based on the general behavior.

Use of Google Analytics

(1) This website uses Google Analytics, a web analytics service provided by Google, Inc. ("Google"). Google Analytics uses "cookies", which are text files placed on your computer, to help the website analyze how users use the site. The information generated by the cookie about your use of this website is usually transmitted to a Google server in the USA and stored there. In the event that IP anonymization is activated on this website, however, your IP address will be truncated beforehand by Google within member states of the European Union or in other contracting states to the Agreement on the European Economic Area. The analysis of this website enables us to make the offer more attractive for you and to optimize our offer (legitimate interest).

(2) Only in exceptional cases will the full IP address be transmitted to a Google server in the USA and shortened there. On behalf of the operator of this website, Google will use this information for the purpose of evaluating your use of the website, compiling reports on website activity and providing other services relating to website activity and internet usage to the website operator. The IP address transmitted by your browser as part of Google Analytics will not be merged with other data from Google. [New arrangements for the transfer of data between EU-US are still being defined, as the above-mentioned arrangement has been marked as obsolete by the European Court of Justice (ECJ).]

(3) You may refuse the use of cookies by selecting the appropriate settings on your browser, however please note that if you do this you may not be able to use the full functionality of this website. You can also prevent the collection of data generated by the cookie and related to your use of the website (including your IP address) to Google and the processing of this data by Google by downloading and installing the browser plugin available at the following link: https://tools.google.com/dlpage/gaoptout?hl=de.

Use of the ticket system - provider HESK

HESK is the helpdesk tool for GRINDINGHUB digital. It is installed on the VDW server within the GRINDINGHUB digital domain.

What cookies does HESK (the software) use?

Cookies are text files that are stored in a computer system via an Internet browser.
HESK (the Software) uses cookies to perform some important tasks (for example, to verify that a user is logged in) and to provide more user-friendly services to users of the Software that would not be possible without them. Here is a list of cookies used by the HESK helpdesk software:

1- PHP session cookie

Stores a unique identifier for the PHP session (a random sequence of numbers and letters that tell PHP where back-end information is stored on the server). This is an essential cookie required for the normal operation of HESK and maintaining the user's state when navigating through different pages of the user interface. Cookie name: random, starts with "HESK", for example "HESKa46e52fo89654aa654d".
Runs after: Close browser

2- Cookies

set for username and password only for employees who explicitly mark that HESK credentials should be stored on a computer. Contains a hashed (one-way encrypted) username and password combination.
Cookie name: hesk_username
Expires after: 1 year
Cookie name: hesk_p
Expires after: 1 year, if logged out, then after closing the browser

3- Cookie for email address

Set only for HESK users who explicitly check the "Save my email address" checkbox in the HESK user interface. Contains the user's email address. This cookie is only available and used when HESK is configured to require emails to view tickets.
Cookie name: hesk_myemail
Expires after: 1 year

4- Autorefresh Cookie

for automatic update is used only for the operation of the "Page for automatic update" function in the admin area. It is necessary to remember the last state of the auto refresh checkbox selection.
Cookie name: autorefresh
Runs after: Close browser

5- Voice cookie

With this cookie stores which language has been selected by a user if multiple languages are installed in the helpdesk.
Cookie name: hesk_language
Expires after: 1 year

Use of the support live chat system - provider Userlike

This tool is integrated via script on the GRINDINGHUB digital website. However, it runs locally on the provider's server (userlike.com). The following data is stored by the chat system, which is necessary for support:
1- Chatlog
2- Account data/personal data of operators /support staff (name, pictures, email).
3- Optional name and email address of the questioner (if no live chat possible due to service hours or to ensure a reply).

Deletion and blocking of personal data

(1) We process and store personal data of the data subject only as long as this is necessary to achieve the purpose of storage. Storage may take place beyond this, insofar as this has been provided for by the European or national legislator in Union regulations, laws or other provisions to which the controller is subject.

(2) As soon as the purpose of storage ceases to apply or a storage period prescribed by the aforementioned regulations expires, the personal data shall be routinely blocked or deleted.

(3) For details please refer to the paragraph "Registration for GRINDINGHUB digital (incl. web sessions) and user data" No. (4) + (5).

Rights of the user (data subject)

If personal data is processed by you, you are a data subject within the meaning of the GDPR. You have the following rights vis-à-vis us as the data controller:

(1) Right to information

You may request confirmation from us as to whether personal data concerning you is being processed by us. If there is such processing, you can request information from the controller about the following:

  1. the purposes for which the personal data are processed;
  2. the categories of personal data which are processed;
  3. the recipients or categories of recipients to whom the personal data concerning you has been or will be disclosed;
  4. the planned duration of the storage of the personal data concerning you or, if concrete information on this is not possible, criteria for determining the storage duration;
  5. the existence of a right to rectification or erasure of personal data concerning you, a right to restriction of processing by the controller or a right to object to such processing;
  6. the existence of a right of appeal to a supervisory authority;
  7. any available information on the origin of the data, if the personal data are not collected from the data subject;
  8. the existence of automated decision-making, including profiling, pursuant to Art. 22(1) and (4) of the GDPR and, at least in these cases, meaningful information about the logic involved and the scope and intended effects of such processing for the data subject. You have the right to request information about whether the personal data concerning you is transferred to a third country or to an international organization. In this context, you may request to be informed about the appropriate safeguards pursuant to Art. 46 GDPR in connection with the transfer.

(2) Right to rectification

You have a right of rectification and/or completion towards us, if the processed personal data concerning you are incorrect or incomplete. We shall carry out the rectification without undue delay.

(3) Right to restriction of processing

Under the following conditions, you may request the restriction of the processing of personal data concerning you:

  1. if you dispute the accuracy of the personal data concerning you, for a period of time that allows us to verify the accuracy of the personal data;
  2. if the processing is unlawful and you object to the erasure of the personal data and request instead the restriction of the use of the personal data;
  3. if we no longer need the personal data for the purposes of processing, but you need it for the assertion, exercise or defense of legal claims, or
  4. if you have objected to the processing pursuant to Art. 21 (1) GDPR and it has not yet been determined whether our legitimate interests outweigh your interests meriting protection. If the processing of personal data concerning you has been restricted, this data may - apart from being stored - only be processed with your consent or for the assertion, exercise or defense of legal claims or for the protection of the rights of another natural or legal person or for reasons of an important public interest of the Union or a Member State. If the restriction of processing has been restricted in accordance with the above conditions, you will be informed by us before the restriction is lifted.

(4) Right to deletion

You may request that we delete the personal data concerning you without undue delay, provided that one of the following reasons applies:

  1. The personal data concerning you are no longer necessary for the purposes for which they were collected or otherwise processed;
  2. You revoke your consent on which the processing was based pursuant to Art. 6 (1) a or Art. 9 (2) a GDPR and there is no other legal basis for the processing.
  3. You object to the processing pursuant to Art. 21(1) GDPR and there are no overriding legitimate interests for the processing, or you object to the processing pursuant to Art. 21 (2) GDPR.
  4. The personal data concerning you has been processed unlawfully.
  5. The deletion of personal data concerning you is necessary for compliance with a legal obligation under Union law or the law of a member state to which we are subject.
  6. The personal data concerning you was collected in relation to information society services offered pursuant to Art. 8 (1) GDPR. If we have made the personal data concerning you public and we are obliged to erase the published data pursuant to Art. 17 (1) GDPR or the aforementioned paragraph, we shall take reasonable steps, including technical measures, to inform data controllers processing the personal data, taking into account the available technology and the cost of implementation, that you, as the data subject, have requested that they erase all links to or copies or replications of such personal data.

The right to erasure does not exist insofar as the processing is necessary to

  1. to exercise the right to freedom of expression and information;
  2. for compliance with a legal obligation which requires processing under Union or Member State law to which we are subject, or for the performance of a task carried out in the public interest or in the exercise of official authority vested in us;
  3. for the assertion, exercise or defense of legal claims.

(5) Right to information

If you have asserted the right to rectification, erasure or restriction of processing against us, we are obliged to notify all recipients to whom the personal data relating to you has been disclosed of this rectification or erasure of the data or restriction of processing, unless this proves impossible or involves a disproportionate effort. You have the right against us to be informed about these recipients.

(6) Right to data portability

You have the right to receive the personal data concerning you that you have provided to us in a structured, common and machine-readable format. In addition, you have the right to transfer this data to another controller without hindrance by us, provided that

  1. the processing is based on consent pursuant to Art. 6 (1) a GDPR or Art. 9 (2) a GDPR or on a contract pursuant to Art. 6 (1) b GDPR and
  2. the processing is carried out with the aid of automated procedures. In exercising this right, you also have the right to have the personal data concerning you transferred directly from one controller to another controller, insofar as this is technically feasible. Freedoms and rights of other persons must not be affected by this. The right to data portability does not apply to processing of personal data necessary for the performance of a task carried out in the public interest or in the exercise of official authority vested in the controller.

(7) Right of objection

You have the right to object at any time, on grounds relating to your particular situation, to the processing of personal data concerning you which is carried out on the basis of Art. 6 (1) (e) or (f) GDPR; this also applies to profiling based on these provisions. We will no longer process the personal data concerning you unless we can demonstrate compelling legitimate grounds for the processing which override your interests, rights and freedoms, or the processing serves the purpose of asserting, exercising or defending legal claims. If the personal data concerning you is processed for the purposes of direct marketing, you have the right to object at any time to the processing of personal data concerning you for the purposes of such marketing; this also applies to profiling, insofar as it is related to such direct marketing. If you object to the processing for direct marketing purposes, the personal data concerning you will no longer be processed for these purposes. You have the possibility, in connection with the use of information society services, notwithstanding Directive 2002/58/EC, to exercise your right to object by means of automated procedures using technical specifications.

(8) Right to revoke the declaration of consent under data protection law

You have the right to revoke your declaration of consent under data protection law at any time. The revocation of consent does not affect the lawfulness of the processing carried out on the basis of the consent until the revocation.

(9) Automated decision in individual cases including profiling

You have the right not to be subject to a decision based solely on automated processing - including profiling - which produces legal effects concerning you or similarly significantly affects you. This does not apply if the decision

  1. is necessary for the conclusion or fulfillment of a contract between you and us,
  2. is permitted by legislation of the Union or a Member State to which we are subject and that legislation contains appropriate measures to safeguard your rights and freedoms and your legitimate interests, or
  3. is done with your express consent.

However, these decisions may not be based on special categories of personal data pursuant to Art. 9(1) of the GDPR, unless Art. 9(2)(a) or (g) of the GDPR applies and appropriate measures have been taken to protect the rights and freedoms and your legitimate interests. With regard to the cases mentioned in Section 18.9.1 No. 1 and 3 (cf. Art. 22 Para. 2 lit. a. and c. GDPR), we take appropriate measures to safeguard your rights and freedoms as well as your legitimate interests, which include at least the right to obtain the intervention of a person on the part of the controller, to express your point of view and to contest the decision.

(10) Right to complain to a supervisory authority

Without prejudice to any other administrative or judicial remedy, you have the right to lodge a complaint with a supervisory authority, in particular in the Member State of your residence, workplace or the place of the alleged infringement, if you consider that the processing of personal data concerning you infringes the GDPR. The supervisory authority to which the complaint has been lodged shall inform the complainant of the status and outcome of the complaint, including the possibility of a judicial remedy under Art. 78 GDPR.

Legal bases of the processing of personal data

(1) Insofar as we obtain the consent of the data subject for processing operations involving personal data, Art. 6(1)(a) GDPR shall serve as the legal basis.

(2) When processing personal data that is necessary for the performance of a contract to which you are a party, Art. 6(1)(b) GDPR serves as the legal basis. This also applies to processing operations that are necessary for the performance of pre-contractual measures.

(3) Insofar as the processing of personal data is necessary for the fulfillment of a legal obligation to which we are subject, Art. 6 (1) lit. c GDPR serves as the legal basis.

(4) In the event that vital interests of the data subject or another natural person make it necessary to process personal data, Art. 6(1)(d) GDPR shall serve as the legal basis.

(5) If the processing is necessary to protect a legitimate interest of us or a third party and the interests, fundamental rights and freedoms of the data subject do not override the former interests, Art. 6(1)(f) GDPR serves as the legal basis for the processing. Our legitimate interest is to offer our services.

General information for the handling of personal data in the VDW

Data Protection Manager at VDW:

RA Klaus-Peter Kuhnmünch
VDW e. V.
Head of Department Legal and Special Tasks
Lyoner Straße 18
60528 Frankfurt am Main
Phone: + 49 69 756081-38
Mail: privacy@vdw.de
M.Sc. Franck-Donald Njoya
VDW e. V.
Head of Department IT
Lyoner Straße 18
60528 Frankfurt am Main
Phone: + 49 69 756081-38
Mail: privacy@vdw.de

You can reach our data protection officer as follows: Scheja und Partner Rechtsanwälte mbB
Adenauerallee 136
53113 Bonn
Phone: +49 228 227 226-0
Mail: info@scheja-partner.de

Subject to change of this privacy policy

This privacy policy for GRINDINGHUB digital (and associated web sessions) is valid as of August 2021.

Due to the further development of our website or individual areas of the website, changes to our services and offers, or due to changes in the legal situation, it may become necessary to amend the data protection declaration. We will point out any changes.


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