Caterpillar Flat heat-treated blade 4Z8120/4T2971/4T2970

Our aftermarket full sets of Caterpillar Flat Grader Blade replacements are the heavy-duty straight cutting edge designed for Cat motor graders, they are widely used for heavy earthmoving, rock grading, road base leveling and bulk material pushing.

Different from curved blades, our flat grader blades feature straight linear geometry, can provide maximum rigidity, stable cutting pressure and strong impact resistance. They are preferred blade for rough grading, road base compaction, quarry site leveling, rock and gravel handling, and heavy-load bulk pushing projects.

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

1. Raw Material Spectral Test:  we will detect chemical composition for every batch, reject recycled inferior steel.

2. Hardness Test: we will do hardness test for Multi-point , ensure full through-hardening without soft zone.

3. Dimension Tolerance Inspection: we will strictly controll length, width, thickness, hole pitch, hole diameter, flatness within OEM tolerance range.

4. Straightness Detection: we must confirm flat blade keep linear straightness, no bending, no camber.

5. Bevel Angle Inspection: the standard bevel angle is 33°, we need to verify the bevel angles are consistent and uniform.

6. Surface Visual Inspection: No crack, no scratch, no deformation, no quenching spot.

Our factory can supply 4 types of Caterpillar flat grader blade bevel: double bevel reversible, single bevel sharp edge, square blunt edge and carbide reinforced edge for mining.

To provide you accurate quotation, could you tell me your grader model /OEM part number, blade thickness ,length and required bevel type? We will recommend the most suitable solution according to your working condition.