Caterpillar grader blade Curved heat-treated blade 9J3660/9J3659/9J3656

Our aftermarket full sets of Caterpillar Curved Grader Blade replacement are the OEM-standard curved cutting edge specially designed for Cat motor grader fine grading and soil rolling operations. Our aftermarket curved heat treated cutting edges/cutting edges are  preferred wear part for highway fine finishing, road camber shaping, pavement resurfacing, snow removal and landscape precision grading.

Our Caterpillar motor grader bolt on cutting edges/grade blades through hardened guaranteed against breakage, the grader blade cutting edges have 0.5" thick, 0.625" thick,0.75" thick,1" thick. It takes 3/4 " grade 9 plow bolts and 3/4" nuts.

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

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

2. Curvature & Dimension Inspection: we will check curve radius, length, width, plate thickness, hole pitch and hole diameter. Ensure the curve profile matches drawing requirements, and control dimension tolerance strictly.

3. Hardness Test: our technican will do hardness test on cutting edges and end bits for multi-point, and ensure hardness controlled at reasonable range, no local soft zone.

4. Surface Visual Inspection: our inspector will check surface for cracks, slag inclusion, air holes, scratches, bending deformation, ensure cutting edge no chipping.

5.Metallurgical & Microstructure Test: our technican will check grain structure after heat treatment, to avoid improper quenching defects.

6. Bend Test: we will do sampling bending test to verify impact resistance, prevent brittle fracture under heavy load.

Thank you for your interest in Caterpillar curved grader cutting edge. We supply curved grader blades with multiple bevel options: double bevel, single bevel, square no-bevel and tungsten carbide reinforced bevel. The bevel angle, plate thickness and curve radius are critical for correct fitment and service life.

Kindly advise your motor grader model, OEM part number, required bevel type, plate thickness and overall length. We will check dimensions and offer accurate quotation and lead time. Drawings or sample photos are also welcome for verification.