There are multiple uses for screws in the following applications:

• Food packaging
• Pharmaceutical packaging
• Dosing of plastic granulate in extruders
• Food processing
• General dosing and feeding of bulk material

HELIX has been the competent partner of machine manfacturers for the production of dosing and feeding screws for many years. In this regard HELIX specialises in the manufacturing of screws made from a solid rod (i.e. not welded) with a length of up to 3000 mm.

Amongst others, the following materials are used:

• Corrosion resistant stainless steels like 1.4305 AISI 303, 1,4404 AISI 316L, 1.4453, 1.4571 AISI 316Ti, etc.
• Nitrided steel for hardened screws
• C45, St50, ETG100
• Teflon, polyamides and other plastics

The surface quality of a screw is decisive for process safety during the feeding process. HELIX delivers:

• High gloss polished - for optimal dosing results
• Electrochemically polished - specifically for pharmaceutical and food technologies
• Micro-compacted - for deadhesive surfaces
• Hard chrome plated - resistant to corrosion and protected against wear.