Top Roller for Sumitomo LS218 Crawler Crane

1.Brief introduction

Sumitomo LS218 Top roller(also called carrier roller, upper roller) is assembled on the crawler frame and hold up the track shoes. It is used to hold up the track shoes assy, make the LS218 crawler shoes has a certain tension and keep the LS218 track shoes assy straight. If LS218 top roller is broken down, the crawler crane can’t keep straight to walk, which will effect the work efficiency.

2.Detail&nature

3.Production Process

1.Cutting---2.Forging---3.Rough machining---4.Overall hardening & Tempering---5.Hardness Testing---6.Half-Finished Machining---7.Surface Quenching---8.Finished  Machining---9.Cleaning---10.Assembling---11.Painting---12.Packing

4.Photos for LS218 Top Roller