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Blade clearance: finely calibrated for neat shearing
Material: premium D2, SKD11, DC53 tool steel
Suitable use: PP and PE film recycling, PET pellet processing
Hard & brittle plastics generate strong instantaneous impact
Soft & tough plastics easily wrap around blades and cause adhesion
Fiber‑reinforced plastics cause severe edge wear
Hard plastics: high hardness, wear resistance, impact resistance
Soft plastics: high toughness, strong shear force, smooth cutting surface
Fiber‑reinforced materials: ultra‑high wear resistance, chipping resistance
C: 1.40–1.60%
Cr: 11.00–13.00%
Mo: 0.80–1.20%
V: 0.20–0.50%
Si: 0.40% max
Mn: 0.60% max
Hardness after heat treatment: HRC 60–64
Excellent wear resistance and edge retention, maintaining a sharp cutting edge for a long time
Good impact toughness, resistant to chipping and breakage during impact from hard plastics
High edge strength, suitable for high‑speed cutting of hard brittle materials
Reduces frequent sharpening and blade replacement, lowering maintenance costs
Withstands instantaneous impact force during hard plastic crushing, ensuring stable operation
Maintains consistent shredding effect for long-term use
C: 0.85–0.95%
Cr: 1.20–1.50%
Si: 1.00–1.30%
Mn: 0.30–0.60%
P: 0.030% max
S: 0.030% max
Hardness after heat treatment: HRC 58–62
High toughness, not easy to break or chip during high‑speed shearing motion
Good machinability, supporting precise grinding of the cutting edge to achieve a smooth surface
Moderate wear resistance, matching the low‑abrasion characteristics of soft plastics
Smooth cutting edge reduces material wrapping and adhesion, ensuring efficient shredding
Cost-effective, avoiding unnecessary waste for small-batch or regular soft plastic crushing
Easy to process and sharpen, reducing maintenance difficulty
C: 1.00–1.10%
Cr: 7.50–8.50%
Mo: 1.80–2.20%
V: 0.20–0.50%
Si: 0.10–0.35%
Mn: 0.20–0.50%
Hardness after heat treatment: HRC 62–65
Superior wear resistance compared to SKD‑11, effectively resisting wear from fiber-reinforced materials
Excellent chipping and fracture resistance, adapting to the strong impact of thick material crushing
Good high-temperature stability; the cutting edge is not easily deformed during long-term continuous crushing
Significantly extends blade service life when crushing fiber-reinforced plastics, reducing replacement frequency
Withstands complex stress from mixed materials, ensuring stable operation and consistent shredding effect
Suitable for heavy-duty continuous work, improving equipment productivity
Nanjing Alas International Co., Ltd. is a professional industrial tooling manufacturer focused on shear blades, bending dies, shredder blades, and custom wear parts. We offer full application engineering, material selection, setup guidance, and after-sales support to global customers.
Tell us your requirements, and our engineering team will provide professional solutions for blade specification, tool life optimization, and cost-effective production.
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