First, piston metering pumps <br> <br> features:

1, the price is low.

2. The flow rate can reach 76m3/h, the flow rate is in the range of 10%~100%, the measurement accuracy can reach ±1%, and the pressure can reach 350 MPa. When the pressure on the outlet changes, the flow is almost constant.

3, can transport high viscosity media, is not suitable for conveying corrosive slurry and hazardous chemicals.

4. The shaft seal is a packing seal and there is leakage. Periodically adjust the packing. Fillers and plungers are subject to wear and require pressure washers and drains on the packing rings.

5, no safety relief device.

Second, the mechanical diaphragm metering pumps <br> <br> features:

1, the price is low.

2, no dynamic seal, no leakage.

3, can transport high viscosity media, abrasive slurry and hazardous chemicals.

4. The diaphragm is subjected to high stress and the diaphragm life is low.

5, the outlet pressure is less than 2MPa, the flow applicable range is small; the measurement accuracy is ± 5%, when the pressure from the minimum to the maximum, the flow rate can reach 10%.

6, no safety relief device.

Third, the hydraulic diaphragm metering pumps <br> <br> features:

1, no dynamic seal, no leakage, safety discharge device, easy to maintain.

2, the pressure up to 35MPa; flow in the 10:1 range, the measurement accuracy of up to ± 1%; pressure increased by 6.9MPa, the flow rate decreased 5% to 10%.

3, the price is higher.

4, suitable for medium viscosity media.

Fourth, the bellows metering pumps <br> <br> features:

1, the price is low.

2, no dynamic seal, no leakage.

3, the most suitable to transport vacuum, high temperature, low temperature medium, the export pressure of 0.4MPaG or less, measurement accuracy is low.

The development and development of Bulldozer Spare Parts and Loader Spare Parts types must meet the work adaptability of different working conditions, and must maintain the maximum component versatility (or interchangeability) with the basic model, which will bring extremes to the users. Great convenience. In order to facilitate the purchase of accessories, the manufacturer has retained the parts number of Komatsu Corporation of Japan, and only the parts designed by the company in the modification have been numbered by their own manufacturers.

SD32 1

The Crawler Bulldozer and Crawler Excavator is mainly composed of an engine, a transmission system, a working device, an electric part, a cab and a hood. Among them, mechanical and hydraulic transmission systems include hydraulic torque converters, coupling assemblies, planetary gear-type power shift transmissions, central transmissions, steering clutches and steering brakes, final drives and travel systems.


The power output mechanism drives the working pump, the variable speed torque hydraulic system variable speed pump and the steering brake hydraulic system steering pump in the hydraulic system of the working device by means of gear transmission and spline connection; the sprocket represents the final transmission mechanism of the secondary spur gear transmission (including left and right final drive assemblies); track shoes including track assemblies, trolley frames and suspension assembly systems.

SD22 dozer


Heavy Construction Machinery Bulldozer, Crawler Bulldozer, Shantui Bulldozer, Bulldozer with Three-Shank Ripper

Jining Changsong Construction Machinery Co., Ltd. ,