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The main frame

bearing

The middle jib

Deep hole concentricity 0.03mm, dimension tolerance 0.046mm, hole deep processing is difficult

stents

Rocker arm

The welding seam of this part needs all UT flaw detection, flaw detection grade 2, hole concentric 0.02mm, hole spacing 0.02mm

tailstock

Eccentric sleeve

The framework

Welding parts Danieli

The weight of this part is more than 10 tons, and the welding seam needs all UT flaw detection, and the flaw detection grade is 2. The concentricity of the hole is required to be 0.02, and the verticality of the machined surface and the hole is required to be 0.02mm