Detaillierte Nahaufnahme einer schwarzen Asphaltoberfläche mit feiner Körnung und rauer Textur bei Tageslicht

Media for the cosmetics industry

Initial problem: wear on former stainless steel dosing units in filling systems


In automated filling systems for a wide range of foods and cosmetic media, dosing units are key components. They have to dose highly viscous media such as creams, pastes or richly pigmented lipstick compounds precisely – often every second.
Conventional stainless steel dosing units quickly reach their limits here:


  • Abrasive pigments and fillers attack the tools concerned.
  • Surfaces become rough, lose their original dimensions due to abrasion, and the resulting dosing becomes inaccurate.
  • Frequent tool changes lead to long downtimes and high follow-up costs.

Our customers' requirement was clear: to create a carbide dosing unit that lasts longer under these conditions, can be cleaned hygienically and guarantees constant dosing quantities.

Mehrere rote Lippenstifte in silbernen Hüllen stehen in einer Reihe auf einer Produktionslinie. Dosiereinheiten sichtbar.

Why tungsten carbide is the right material


Tools made of carbide based on tungsten carbide (WC) offer decisive advantages here:


  • Hardness & wear resistance: WC combined with cobalt or nickel as a binder withstands abrasive media much longer than stainless steel.
  • Polished internal channels: prevent deposits and ensure hygienic processes.
  • Exact dimensional accuracy: constant dosing quantities even at high cycle rates.
  • High corrosion resistance: particularly important for cleaning cycles in food and cosmetics systems.

This considerably extends the service life of the dosing units – a clear advantage for processes that depend on efficiency and quality.

Nahaufnahme von feinem schwarzem Wolfram-Pulver auf einer Metallfläche in dunkler Umgebung

Development and production of carbide dosing units at Nadler


These special tools are produced entirely in-house – from the powder preparation of the special batch approved for food contact to final finishing. We ensure dimensional accuracy and surface quality with our in-house grinding technology, which covers all relevant processes: cylindrical grinding, surface grinding, centerless grinding and 5-axis CNC grinding, EDM, lapping and more.


For the sensitive product channels, we also rely on hand polishing. This elaborate fine work guarantees absolutely smooth surfaces, prevents deposits and enables hygienic cleaning – including CIP/SIP processes.

The focus is on:


  • Geometry: precisely matched to the dosing quantity and the system
  • Dimensional accuracy: constant even after thousands of dosing cycles
  • Internal polishing: done by hand for maximum hygiene and process reliability
  • Reproducible quality: documented and tested in every production phase

The combination of in-house grinding technology and careful polishing produces dosing units that remain dimensionally stable even with abrasive media, can be cleaned hygienically and dose a wide variety of media with consistent precision in production systems – over long service lives.

Reihe von Lippenstiften in silbernen Hüllen auf Förderband in Produktionsanlage für Kosmetikartikel

Result: carbide dosing units with more than 10 times the service life in filling systems


The carbide dosing unit used in a cosmetics filling system replaced a former stainless steel component. The results are measurable:


  • more than 10 times the service life compared with stainless steel dosing units
  • significantly reduced downtime thanks to fewer machine stoppages
  • enormous process reliability even with abrasive media
  • constant repeatability, even at high throughput

These advantages can be transferred 1:1 to comparable systems in the food industry – from pastes and dressings to viscous specialty products.

Carbide dosing units for the food and cosmetics industries


In both industries: precision and hygiene are non-negotiable.
Dosing units made of tungsten carbide-based carbide deliver decisive added value here:


  • Longer service life = fewer failures
  • Better cost-efficiency = lower maintenance costs
  • Higher process reliability = consistent quality of the end products

With tailor-made carbide dosing units, Nadler Hartmetalle ensures stable production processes in the food and cosmetics industries – reliable, durable and tested down to the last detail.

Nahaufnahme eines roten Lippenstifts mit rotem Farbschmauch und Puder auf hellem Hintergrund in der Kosmetikindustrie
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