Injection Screws
PENA® injection screws are manufactured to order for each application, delivering optimised plasticising performance, excellent thermal stability and outstanding wear resistance.
Thanks to our advanced grinding, coating and precision metrology processes, every screw ensures consistent melt quality, stable processing conditions and extended service life.
Technical Specifications
- Available diameters: Ø18 mm to Ø400 mm.
- Unlimited L/D ratio capabilities.
- Base material: Nitrided, hardened or stainless steel.
- Machining tolerances ≤ 0.01 mm.
- Available geometries: Standard, Barrier, Maddock, Pineapple, Vented and Static Mixer designs.
Bimetallic Screws Alloys
NITRIDED
67/70 HRC- Abrasion MEDIUM
- Corrosion LOW
An economical solution for standard applications with low wear requirements.
PENA 160
Ni–Cr · >1100 HV- Abrasion VERY HIGH+
- Corrosion MEDIUM
High hardness combined with excellent thermal stability and chemical resistance.
PENA 172
Refined Alloy · 58–60 HRC- Abrasion HIGH
- Corrosion VERY HIGH+
Excellent adhesion and oxidation resistance, ideal for humid and corrosive operating environments.
PENA 175
PTA with WC · >62 HRC- Abrasion MAXIMUM++
- Corrosion MAXIMUM++
Maximum protection against severe abrasion, mineral fillers and extreme wear conditions.
Technical Advantages
- High plasticising efficiency.
- Excellent dimensional stability, even after thousands of operating hours.
- PTA, Ni-Cr and laser cladding solutions with full metallurgical bonding.
- Customised screw geometry for each polymer, additive package and filler content.
- Complete maintenance, refurbishment and rebuilding services carried out in-house.
