Komatsu Loader WA420 cutting edge 421-815-A120/424-815-A120/424-815-A140

Our aftermarket full sets of Komatsu WA420 Wheel Loader Cutting Edge & End Bits replacement are bolt-on GET wear parts specially designed for WA420 wheel loader buckets including WA420-1、WA420-3. The Komatsu WA420 loaders are widely used in aggregate yards, civil earthmoving, stockpile handling and medium & small quarry sites.

To ensure stable quality,our factory execute strict quality inspection during our entire process :

1. Material Test: use spectrometer inspection to verify chemical composition , ensure alloy elements like carbon, chromium and manganese meet standard.

2. Hardness Test: adopt random Rockwell hardness test,ensure uniform hardness for cutting edge and end bits and working surface reaches required hardness while maintaining proper toughness to avoid brittle fracture.

3. Dimension Inspection: we will check overall length, thickness, bolt hole pitch and bevel angle, and control tolerance within industrial standard.

4. Visual & Magnetic Particle Inspection: no cracks, porosity or laminations. No chipping on cutting edge and no burrs around bolt holes.

5. Sampling Impact Test: our technician will simulate working impact to verify anti-breakage performance.

Welcome to contact us for more details ! Our aftermarket cutting edges and end bits have several material optionsm including 30MnB boron steel, C80 high carbon steel, carbide composite and custom Mn13 manganese steel.The cutting edge styles include reversible double bevel, sharp single bevel, impact-resistant square edge and segmented cutting edge,and the end bit styles include standard, heavy-duty reinforced, weld-on, bolt-on and serrated. Normal production lead time is 25–35 working days upon receipt of deposit.