From the year 2007, this company starts to concentrate on the research and production of engineering machinery chassis, which is known as "four rounds" (sprokets, tractor parts, top roller, idler).

In the related key components, we choose the factory which manufactures best quality parts at home to insure the life span of our products. Through the development for 6 years, we already have nearly 30 kinds of products, from 3 tons excavator to 26 tons large machine. Most products are exported to foreign countries.
Currently, we have six professional designers, and a group of specialized technical staff. We also keep on training our own design troops to satisfy the customers' requirements on the technique and service.

A sprocket can be a profiled wheel with teeth, cogs, or even sprockets that mesh having a chain, track or other perforated or indented material. The name 'sprocket' applies generally to any wheel upon which are radial projections that engage a sprocket chain passing over it. It's distinguished from a gear in that sprockets are by no means meshed together directly, and differs from a pulley in that drive sprocket have teeth and pulleys are smooth.

Sprockets are utilized in bicycles, motorcycles, vehicles, tracked vehicles, along with other machinery either to transmit rotary motion between two shafts where gears are unsuitable or to impart linear motion to a track, tape etc. Perhaps the commonest form of drive sprocket is discovered inside the bicycle, in which the pedal shaft carries a big sprocket-wheel which drives a sprocket chain which in turn drives a tiny sprocket chain on the axle in the rear wheel. Early automobiles had been also largely driven by sprocket chain mechanism, a practice largely copied from bicycles.

Sprockets are of numerous designs, a maximum of efficiency getting claimed for each and every by drive sprocket's originator. Sprockets generally don't have aflange. Some of the drive sprocket used with timing belts have flanges to keep the timing belt centered. Sprocket chain is also used for energy transmission from 1 shaft to another where slippage is not admissible, sprocket chain becoming utilised rather than belts or ropes and sprocket chain as an alternative to pulleys. Sprocket chain is able to be run at high speed and some forms of chain are so constructed as to be noiseless even at high speed.