Komatsu Dozer D31 cutting edge 114-72-21140/11G-71-21170/12F-70-31261

Our aftermarket full sets of Komatsu D31 crawler dozer Cutting Edge & End Bits replacement are bolt-on GET wear parts specially designed forD31 crawler dozer buckets. The Komatsu D31 crawler dozers are widely used in municipal construction, road foundation work, earth backfilling, site grading, slope trimming, farmland renovation and auxiliary mining operations.

We can supply various bevel design cutting edges for Komatsu D31 crawler dozers , including double bevel cutting edge,single bevel cutting edge and square plain edge. Different bevel design fit different working site condition.We can also supply various end bit styles, including standard bolt-on end bit,heavy duty reinforced end bit and serrated end bit.

As to raw material , there are mainly 3 options :

1. 30MnB Boron steel: use most, hardness is about HRC 440–500,can balance toughness and wear resistance well,it is ideal for sand, gravel and earth works.

2. NM400 alloy steel: hardness is about HB360-420, own better abrasion resistance than boron steel for continuous gravel wear. Not recommended for heavy rock impact.

3. Mn13 high manganese steel : own work-hardening property, the surface will get harder under continuous impact. It fits occasional rock and hard impact. Not economical for pure earthmoving.

Welcome to contact us for more details ! We supply high quality replacement cutting edge and end bits for Komatsu D31 crawler dozer. Our GET parts pass strict hardness and dimension inspection. Could you kindly tell us your OEM number, working site condition and material option? Also advise if you need matching high strength bolts. We will prepare formal quotation with lead time and packing details for you soon.