Crankshaft Grinding

Cumi’s crankshaft grinding wheels are made using special, high performance bond systems in an unique manufacturing process, tailored to suit each market segment. This manufacturing technology coupled with the application engineering expertise offers, makes Cumi’s crankshaft grinding wheels highly cost-effective. Besides optimizing grinding efficiencies, these wheels also provide a surface finish as 4 microns.

Cumi also makes dual grade, sandwich wheels with harder sides and softer centres, ideal for grinding crankshafts of differential hardness in diameter and fillet radius. These provide surface speeds up to 60 mps.

Product Recommendation

Material Size & Grading Bond
Forged Steel – Soft A463 N5 V10; A543L5V10X V223, V2020, V500
Forged Steel – Hard A463 I5 V10; DA543K5V2020 VK5
Cast Iron DA46 I5 V10 VC500, VCAE
Nodular Iron AA46 L5 V8 VC500, VCAE

Product Range

Abrasive Diameter Thickness Grit Speed Harness Structure
A 600-1200 20-50* 46-80 45 mps J-O 3-5
DA/AA/SA 600-1200 20-50* 60-80 60 mps J-O 3-5
SG 600-1200 20-75* 60-80 60 mps J-O 6-8

Wheel Types For OEM's