Caterpillar 7A spare parts antiwear cutting edge dozer blade 4T2989

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.

We specialized in manufacturing various cutting edge for all brands of Motor grader, Bulldozers,Excavator,Loader and Scraper.
Range: Thickness from 16mm to 60mm.
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 internationsl standard.
Our prodcuts are built to deliver superior performance and long wear life which can make a real difference in your applications.


Caterpillar dozer cutting edge 4T2989:
1) Part number: 4T2989
2) Material: Carbon steel or boron steel with heat treatment
3) Model number: 7A
4) Hardness: HB300~350 or HB380~450
5) Use: Mining
6) Color: Yellow


Cutting edge for bulldozer 4T2989:
1) figure:

2) Dimension:

Part of the cutting edge are as follows:

The pictures of cutting edge: