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Fully Hardened Screws
Through hardened SKD61, D2, and CPM tool steel screws built for high shear compounding and color masterbatch lines.
Hardness
58 to 60 HRC core
Diameter
18 mm to 180 mm
Material
SKD61, D2, CPM9V
Overview
For processors requiring consistent torque transmission, scratch-resistant flanks, and extended mixing section life.
Technical parameters
- Straightness
- 0.015 mm per 1000 mm
- Surface Treatment
- TiN or CrN optional
- Mixing Sections
- Double barrier, Maddock, pineapple
Compatible machines
- Two-component injection machines
- Color masterbatch extruders
- Engineering polymer extrusion
Compatible resins
- High viscosity PA and PEEK
- PC/ABS with flame retardants
- LCP and PPS blends
Material and heat treatment
Material composition
- SKD61 or D2 tool steel
- Optional CPM series powder steel
Heat treatment
- Vacuum hardening
- Sub-zero treatment
- Nitrided flight edges
Planning a multi-site rollout?
Align metallurgy, stocking plans, and after-sales schedules across factories in China and Southeast Asia with our project managers.