Replacement Shear Blades for Ironworker

Achieving Perfect Cuts: Guide to Ironworker Shear & Notcher Blades

What Are Ironworker Shear Blades?

• Core wear parts for ironworker machines (combined punching and shearing machines)

• Cuts cold metal (angle steel, flat steel, round steel, etc.)

• Key Ironworker tooling parts, including Flat bar shear blades and Angle shear knives

• Used in steel factories, construction sites and metal shops

• Handles strong impact, friction and pressure when working

• Material, heat treatment and precision affect speed, quality and service life

What Are Ironworker Notcher Blades?

• Notching (corner/notch cutting) is key before welding and assembly

• Blade quality directly affects how clean the cut is

• Worn blades cause burrs and extra stress on the machine’s hydraulic pump

• Important hydraulic ironworker parts and Ironworker tooling parts

• Like shear blades: core wear parts for ironworker machines

• Cuts cold metal (angle steel, flat steel, etc.)

1. Common Notching Styles

• 90° V-Notcher: Most common; used for bending angle steel/plates

• Rectangular Notcher: Cuts rectangular notches for nested assembly

• Flat Bar Coper: For flat steel edges; coper notcher replacement available (matches Flat bar shear blades use)

2. Key Material Selection for Shear & Notcher Blades

2.1 9CrSi Alloy Tool Steel Blades

• Pros: Easy to process and regrind on-site, good value, fairly durable

• Best for: Light, occasional cutting; small profiles; temporary use on construction sites

• Fits: Small to medium ironworker machines (low work frequency)

2.2 Cr12MoV Blades (Most Popular)

• Hardness: HRC 58-62 (after special heat treatment)

• Pros: Good for cold cutting, durable, hard to break; perfect for Angle shear knives and notcher blades

• Best for: Medium/heavy, frequent cutting; regular metal profiles; mass production

• Fits: 90% of medium/heavy ironworker machines

2.3 H13 Blades (For Tough Conditions)

• Hardness: HRC 52-55 (after heat treatment)

• Pros: Very tough, hard to break; works with dirty/imperfect metal

• Best for: Heavy cutting; large metal (≥100mm); high-strength steel

• Fits: Custom heavy-duty ironworker machines

2.4 Other Material & Processing Pros

• High-Chrome Tool Steel (D2/SKD11): Balances hardness and toughness well

• Precision Grinding: Blades fit perfectly (positive/negative clearance)

• Stable Hardness: Hard to break or wear out fast

3. Key Performance Requirements for All Blades

• Stable hardness (not too hard or too soft)

• Strong toughness (no breaking/deformation when cutting)

• Wear-resistant (stays sharp with frequent use)

4. Applicable Cutting Scenarios

• Angle Steel Cutting: 30mm-200mm (equal/unequal); ideal for Angle shear knives

• Flat Steel Cutting: Up to 50mm thick (smooth cut, no burrs); matches Flat bar shear blades

• Round Steel Cutting: Up to 25mm diameter (no deformation)

• Channel/Square Steel Cutting: Custom blades for heavy industrial use

• Notching/Corner Cutting: 90° V-notch, rectangular notch, flat bar coper for assembly

5. How to Extend Blade Service Life

• Do not cut profiles larger than the blade can handle

• Adjust upper/lower blade gap (0.05-0.1×profile thickness)

• Clean profiles (remove rust, weld scars, hard slag) before cutting

• Lubricate the ironworker machine regularly

• Regrind blades professionally when dull

6. Compatibility: Easy Blade Replacement

• Standard blades (including Flat bar shear blades and Angle shear knives) for major brands: Piranha / Geka / Sunrise / Edwards / Mubea (ready to install)

• Custom blades: 1:1 made from your old blade (drawings or sample) for non-standard machines

7. Why Choose Our Ironworker Blades?

• Professional Material Customization: Choose 9CrSi/Cr12MoV/H13 steel; 100% quality guaranteed with material certificate

• Advanced Heat Treatment: Vacuum quenching for stable hardness, uniform structure, balanced hardness/toughness

• High-Precision Processing: CNC processing, strict size control, smooth edges, no burrs

• Long Service Life: Industrial-grade wear resistance; lasts longer than ordinary steel blades, less replacement

• Custom Service: Non-standard blade customization for special machines; supports OEM/ODM

• Complete After-Sales: On-site guidance and regrinding tips; solve all cutting problems