idler hitachi

Idler excavator use low alloyed boron steels with certified hardenability based on Berco specification (for fabricated versions).  Low alloyed cast steel (cast version).  Heavy duty ring-rolled tread rims (for fabricated versions).  Induction hardened tread diameter.  High tread surface hardness (HRC > 50) for reduced wear and longer life.  Tempered to resist cracking and chipping of idler excavator.  Precise design and manufacturing for proper fit.  Easy resurfacing.  Idler excavator can be supplied alone or fully assembled with brackets, adjuster and tension device.