Four common semi trailer suspensions connecting chassis and frame

The semi trailer suspension is an important component connecting the semi trailer chassis running device and the frame. The supporting force, braking force and driving force of the vehicle are transmitted through the suspension system, and can also reduce the impact of bad roads on the vehicle - shock absorption and ensure the stability of the vehicle. Its importance is self-evident.

Here is a brief introduction

• Steel plate suspension

• Air suspension

• Single point suspension

• Rigid suspension.

● steel plate suspension

Leaf spring balanced suspension

Light leaf spring balanced suspension

Leaf spring balanced suspension (round axle)

Steel plate suspension is our common steel plate spring. Its full name is series connected steel plate spring balanced suspension. It is mainly composed of leaf spring, suspension support (commonly known as lifting lug), connecting rod, U-bolt and other parts. The biggest advantages of this suspension are low price, good reliability and convenient maintenance. At present, more than 80% of ordinary semi trailers in China adopt leaf spring balanced suspension.

● air suspension

BPW air suspension axle

Integrated lifting leaf spring air suspension

Integrated lifting beam air suspension

I'm sure you are familiar with the air suspension. The most obvious feature is its airbag air spring. Because of its different types and structures, it will not be introduced in detail here. Air suspension has obvious advantages, light weight and good stability. The disadvantage is that the price is too high. At present, most domestic trailers use air suspension in high-end fields such as precision instrument transportation, tobacco transportation and hazardous chemical transportation.

● rigid suspension

80t rigid suspension

90t rigid suspension of three lines and six bridges

The most commonly used rigid suspension is axle suspension, including two-line four axle, three line six axle, etc. it is mainly suitable for axle low flat semi trailer and concave beam trailer carrying goods at low speed. Its damping effect is poor when driving at high speed.

● single point suspension

Variable section single point suspension

Low platform single point suspension

Bracket type single point suspension

Single point suspension is to reduce the common leaf spring front and rear supports to a single support connected to the vehicle body. It is less used on ordinary semi trailer. Compared with ordinary leaf spring suspension, single point suspension has greater bearing capacity and is mainly used on heavy vehicles.

Of course, the suspension types of semi trailer can be determined. This paper only briefly introduces several common semi trailer suspensions

Wondee autoparts was founded in 1999. As a professional auto parts supplier, it specializes in providing semi trailer and semi trailer parts, trailer parts, truck parts, agricultural trailers and their parts. The main products include semi trailer, leaf spring, spring steel flat steel, mechanical suspension, air suspension, bogie suspension, airbag, semi trailer axle, landing gear, brake drum, brake shoe, brake lining, fender, slack adjuster, air reservoir, coupling, emergency relay valve, brake hose, rotary table, rim, bolt, fifth wheel, kingpin, air chamber, twist lock Jack, drawbar, etc. If you want to know more, this is our website https://www.wondee.com/