Steel Plate Shear / Steel Plate Cutting Blade

Hydraulic Guillotine Shear Blades and Steel Plate Shearing Knives

Industrial Steel Plate Shear Blades / Guillotine Shear Knives: The Benchmark in High-Rigidity Long-Length Shearing

Yuan Li Knife specializes in manufacturing long-length steel plate shear blades for mechanical shears and hydraulic guillotine/swing-beam shearing machines used in metal plate processing facilities and sheet metal fabrication plants.

During plate shearing operations, blades must endure concentrated shear stresses and heavy lateral thrust forces along the entire cutting line. Utilizing large-scale CNC precision gantry surface grinders and full-length parallelism calibration, Yuan Li ensures a uniform blade gap from end to end. This prevents sheet jamming and wedging when shearing thin sheets, eliminates edge chipping when cutting heavy plates, and delivers square, burr-free edges.

Core Manufacturing Features of Yuan Li Plate Shear Blades

  • Precision-Ground 4-Sided Cutting Edges: Most configurations feature four fully functional, usable cutting edges that can be flipped and rotated after wear, effectively reducing tooling replacement costs.
  • Micron-Level Parallelism & Straightness: Even on multi-meter long shear knives, strict straightness tolerances are maintained, completely eliminating beveling errors and wavy burrs caused by uneven knife clearances.
  • Premium Low-Distortion Cryogenic Alloy Steels: Crafted from SKD-11, D2, 9CrSi, and 6CrW2Si with uniform through-hardened heat treatment (HRC 58–62), delivering outstanding wear resistance and sustained cutting sharpness.

Machine Compatibility and Sheared Metal Specifications

Compatible Shearing Machinery

CNC hydraulic guillotine shears, hydraulic swing-beam shearing machines, mechanical foot shears, and automated uncoiling, leveling, and cut-to-length (CTL) shearing lines.

Compatible Metal Sheet & Plate Materials

Cold-rolled carbon steel coils/plates, hot-rolled pickled sheets, SUS304/316 stainless steel sheets, galvanized steel, copper/aluminum alloy sheets, and high-tensile weathering steel plates.

[Technical Guide] How to Select the Optimal Shear Blade Material by Plate Thickness

  • High-Finish Thin Sheet Shearing (< 6 mm): Low-distortion cold work die steels (SKD-11 / D2) are the preferred choice, emphasizing high surface hardness and micron-level edge sharpness to prevent edge dragging and burrs.
  • Medium-to-Heavy Plate & Heavy-Duty Shearing (> 6 mm): 6CrW2Si, Cr12MoV, or specialty shock-resistant alloy steels are recommended, prioritizing exceptional impact toughness to resist catastrophic edge chipping under peak shear tonnage.
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