Ningbo yuanda machinery Co.,Ltd is a professional China manufacturer of cutting edge and end bit for all brands of construction machinery, It cooperates with a trading company named Ningbo For-Global International Trade Co.,Ltd whom suppliers with cutting edges, end bits, bucket tooth, adapters, bolts& nuts, and other G.E.T products.

With nearly 30 years of experience in mechanical field, we know quality is the fundamental, so we focus on and make the quality improvement continuously. We only choose the quality certificated carbon steel and boron steel as raw material which shows a stable mechanical performance. During each production process, we have strict quality control system and before final packaging, we will inspect the dimensions and hardness to guarantee each product could meet customer's requirement for different working conditions.

Our products are suitable for all brands of dozers, and could make as customer's sample or drawing.
After quenching and tempering heat treatment, the mechanical properties could reach the international standard.

The prodcuts are built to deliver superior performance and long wear life which can make a real difference in your applications.

Curved serrated cutting edge for Caterpillar motor grader 4Z9020
Material: Boron steel with heat treatment
Hardness: HB380~450
Certificate: ISO9001:2008
Color: Cat yellow


Superiority: High quality.
               Good after price.
               Reasonable price.
               Long wearlife.

Parts of cutting edge are as follows:

The picture of curved serrated cutting edge 4Z9020(5D9559S):