Negri-Bossi Screw Barrel
ROOTIER supplies replacement and custom screw barrels for Negri-Bossi injection molding machines. Our solutions cover different Negri-Bossi machine models and injection units, with screw diameters from Ø25 to Ø110 mm. Screw and barrel configurations can be manufactured according to the machine specification, screw diameter, L/D ratio and processed resin. Refer to the product data below to find the available Negri-Bossi screw barrel sizes.
Product data
| Product Name | Negri-Bossi Series |
|---|---|
| Tonnage | 10-2000T |
| Brand | ROOTIER |
| Screw Diameter | 16-200mm |
| Material | Bimetallic, Hardened |
| Application | PP, PE, PS, PVC, PA, PBT, PEEK, PVC, LCP, POM, PC.. |
Specification
Negri-Bossi Injection Unit Screw Barrel Size
| Model | Injection Unit | Screw Size |
|---|---|---|
| 180T | 210 | Ø25, Ø28, Ø32 |
| 210T | 400 | Ø28, Ø32, Ø35 |
| 250T | 670 | Ø32, Ø35, Ø40 |
| 330T | 1600 | Ø35, Ø40, Ø45 |
| 400T | 2920 | Ø40, Ø45, Ø52 |
| 500T | 4250 | Ø45, Ø52, Ø60 |
| 650T | 6700 | Ø52, Ø60, Ø70 |
| 800T | 210 | Ø60, Ø70, Ø80 |
| 1100T | 400 | Ø70, Ø80, Ø90 |
| 1300T | 670 | Ø80, Ø90, Ø100 |
| 1600T | 1600 | Ø90, Ø100, Ø110 |
Frequently Asked Questions
Yes. ROOTIER manufactures replacement screws, barrels, screw tips, non-return valves and nozzles engineered to fit Negri-Bossi injection molding machines. Standard sizes are held in stock for common models, and custom components are produced to drawing or sample.
Send your Negri-Bossi machine model, injection unit, screw diameter and L/D ratio together with the resin you process. ROOTIER will recommend the matching screw geometry, material and surface treatment for your application.
ROOTIER offers nitrided 38CrMoAlA, bimetallic-lined and fully hardened screws and barrels, with chrome plating, PVD or HVOF coatings selected for the resin, filler content and wear conditions of your Negri-Bossi machine.
ROOTIER supplies screws and barrels for Negri-Bossi 180T through 1600T machines, with screw diameters from Ø25 to Ø110 mm.
Yes. ROOTIER produces screws and barrels for Negri-Bossi’s large-tonnage injection units, with material and surface treatment selected for the resin and wear conditions.