Centrifugal compressor rotor impeller blade type

“The blades of centrifugal compressors are generally available in four types: Z-type, U-head type and through-rivet type. U-shaped blades are simple to manufacture and widely used. For example, working wheels with a blade width less than 20 mm or double-side intake, in order to improve airflow. And the riveting impeller is convenient and the blade can be used. These blades are formed by hot pressing of the steel plate. When the height of the blade is more than 7mm and the impeller size is not large, the blade type or the blade with the through hole of the rivet may be used. Used in the case where the channel height is less than 15mm. The manufacture of the hoe type and the rivet type blade is complicated, but the air passage is smooth and non-blocking, and is widely used in the refrigeration compressor. As the welding quality is improved, the welding blade can also be used. In this way, the machining time can be shortened, the air passage blockage is also small, and the strength can be increased, especially the high-speed closed radial impeller, and the necessity of using welded blades is one of the current development directions."

Low Bed Trailer For Sale

1.Knowledge of CHVMlowbed Semi Trailer
CHVM Lowbed semi trailers are widely used, mainly for medium and long-distance freight transportation. low deck trailers are commonly used to transport heavy vehicles, rail vehicles, mining machinery, forestry machinery, agricultural machinery, and other heavy-duty cargo.

The Low Bed Trailer structure usually adopts a concave beam frame. The lower the center of gravity, the better the stability and safety, and the stronger the ability to transport ultra-high cargo. The front section of the frame is a gooseneck (the traction pin in the front section of the gooseneck is connected to the traction saddle on the tractor, and the rear end of the gooseneck is connected to the semi-trailer frame) Cargo platform (the lowest part of the frame), the rear end is the wheel frame (including wheels).

Through this videos, you can learn about different types of lowbed semi-trailers,like 2axle,3axle,4axle lowbed semi trailer,hydraulic ladder lowbed semi trailer,etc.As well as the process, testing, packaging and customer feedback, etc.
2.Different types of low bed trailers
As a professional manufacturer, CHVM VEHICLE has provided many low bed trailers for many country. We have much more advantages on the lowbed trailer`s cost and quality control. Material and suspension (single point and air suspension) are optional.CHVM Lowbed trailers have different capacities, such as 20 tons, 30 tons, 50 tons, 70 tons, 80 tons and 100 tons, 120 tons. Each type use different number of axles from 2, 3, 4 axles to 7, 8 axles.

1)CHVM Low bed trailers can have a variety of models, such as drop deck / step deck trailers, 2axle,3axle,4axle lowbed semi trailer,hydraulic ladder lowbed semi trailer, mechanical ladder and so on. This semi-trailer normally is used to transport large Construction Machinery,such as excavators, rollers and cranes.
2)Of course, lowboys are also used to transport heavy cargo. Due to the low center of gravity of the trailer, it can transport huge cargo and avoid damage to the cargo. This trailer is designed to solve the overload problem of a large tonnage. Usually ordinary semi-trailers use a structure of two axles and one line, but dolly trailers can have multi-lines, such as 4 axles and 16 tires, and are usually used to transport heavy cargo. Each axle of a dolly trailer loads 50 percent of the weight. Many countries are only allowed to have each axle of a vehicle loading 10 tons.
3.Loading test of low equipment trailer
All of CHVM lowbed semi trailer are tested to ensure that our semi-trailers are free of problems. All heavy haul trailer is tested for carrying capacity after production is finished.CHVM has dedicated technical staff to guide the operation.
4.CHVM Outlines of vehicle and composition
Before production,CHVM technical department must first design and produce drawings according to the needs of the user and the market, so that the technical parameters of the main trailer are matched, and then transferred to the manufacturing department.There are dimensions and specs drawing of different types lowbed semi traielr. You can learn more details in the pictures.

Low Bed Trailer,Heavy Duty Trailer,Heavy Duty Semi Trailer,Lowbed Semi Trailer

Liangshan Changhong Special Purpose Vehicle Manufacturing Co., Ltd. , https://www.chvehicles.com