How everything got


The company „Waldemar Knittel Glasbearbeitungs GmbH“ was founded in 1987 by Mister Waldemar Knittel in Braunschweig. Our declared goal is to produce and sell microscope slides and coverglass of the highest quality as consistent, high-class mounting materials for

  • Microscopy
  • Laboratory analyses
  • Histology
  • Cytology
  • Biology
  • Geology et al.

Displaying entrepreneurial spirit, courage, and many years of practical experience, Mr. Waldemar Knittel established a prosperous, globally renowned company. Today, the company has around 100 employees and manufactures at three locations selling more than 400 million slides and coverglass a year. The world-wide distribution of KNITTEL products is carried out exclusively by selected and highly qualified dealers for laboratory-health-products and disposables with strong connections to our company and especially to our products.

         The challenge

The market is looking for state of the art products and service that meet the needs of the customers. It is our aim to offer the best product at the best price. We continually adjust our targets in view of quality as well as in cost-savings in production.

           Our range of


Today, the production of Waldemar Knittel Glasbearbeitungs GmbH comprises the full range of slides and coverglass, from our cheapest, the cut edge slides to our twin frost slides, to our ground edge slides with different edges (e.g. 45°, 90°, bevelled), and various surface treatments (e.g. twin frosted and single frosted). Additionally, we offer concavity slides and counting chambers for various applications, as well as printed slides with and without selective coatings.

Our unique, licenced StarFrost® product range with our registered trademark, the StarFrost® adhesive slides and our application orientated or customised diagnostic slides are available in various colours.

Our high-quality coverglass is available as squares, rectangles or as circles in different dimensions and thicknesses and can be used manually or within automatic coverslippers. Further, we offer our Starbox®, especially designed for medical practice as a very lightweight archive box made of a non-polluting foam, as well as alcohol resistant Markers.

Our sensitivity to quality

For many years we are an ISO 9001 and 13485 certified company.

As a CE/IVD manufacturer the compliance of our processes and systems are our top priority. This guarantees that we are a reliable partner for our customers.

The combination of high quality raw materials, production efficiency and process quality is our strength. We always try to exceed our customers requirements and expectations. To us quality  not only means compliance regarding the agreed specifications and documentation but also the quality of our partnership.

Most of our products are manufactured on automated production lines with integrated quality controls. The slides and cover glasses are conform to the relevant international ISO standards but can meet the customer’s special requirements , e.g. customized slide layouts and packaging, at the same time.

Our company offers CE-marked IVD slides and cover glasses complying with all applicable requirements of EU Regulation 2017/746 on IVD medical devices (IVDR).

Innovations and synergies

The success of our company can only be guaranteed by product innovation and new ideas. Therefore, besides the technical and organisational issues we need the know-how and the experience of our employees.

Synergies from the technical skills of our engineering department in Bielefeld (Engineering), which supplies, among other things, robots and handling systems for the sheet glass industry, glass machining centres and production lines and our own extensive experience in glass manufacturing, contribute to the new products and cost saving production systems that are developed within our company and therefore secure our future, reduce our costs and keep us updated.