Injection Barrels
PENA® injection barrels are manufactured to order for each application, delivering optimum plasticising performance, excellent thermal stability and outstanding wear resistance.
Thanks to our advanced centrifugal casting technology and proprietary bimetallic alloys, specifically selected for each processing application, our barrels provide exceptional durability and long-term performance, even under the most demanding operating conditions.
Technical Specifications
- Available diameters: Ø18 mm to Ø450 mm.
- Unlimited L/D ratio capabilities.
- Base material: Special PENA alloy steel for injection moulding applications, available in hardened or nitrided versions.
- Machining tolerances ≤ 0.01 mm.
Bimetallic Barrel Alloys
NITRIDED
67/70 HRC- Abrasion MEDIUM
- Corrosion LOW
A cost-effective solution for applications with moderate wear and limited chemical aggressiveness.
PENA 40
Fe/Cr · 64-69 HRC- Abrasion VERY HIGH+
- Corrosion MEDIUM
Engineered for maximum resistance to abrasive wear, ideal for highly filled compounds and mineral-loaded formulations.
PENA 51
Ni/Co · 51-54 HRC- Abrasion MEDIUM
- Corrosion MAXIMUM++
Specifically developed for fluoropolymers and highly corrosive compounds, providing outstanding protection against aggressive chemical attack.
PENA 68
Ni/Cr/WC · 56-60 HRC- Abrasion HIGH
- Corrosion VERY HIGH+
An advanced balance of abrasion resistance and corrosion protection, recommended for demanding technical applications.
PENA 80
Ni/Cr/WC . Carbide 2160 HV / Matrix 900 HV- Abrasion MAXIMUM++
- Corrosion MAXIMUM++
Our highest-performance alloy, designed to withstand extreme abrasion and corrosion in the most demanding processing conditions.
Technical Advantages
- High process efficiency and excellent stability during plasticising operations.
- Outstanding resistance to wear, corrosion and abrasive compounds.
- Exceptional dimensional stability, even after thousands of operating hours.
- Barrel configuration optimised according to polymer type, additives and filler content.
- Complete repair, refurbishment and rebuilding services carried out in-house.
