Volvo Truck Suspension Cabin Shock Absorber Oem 21243048 21862164 7421243060 0021909816 Vibration Damper

Working Principle
To understand the shock absorber, it is very important to understand its working.
First of all, we should know that there are generally two types of shock absorbers one is hydraulic and another one is pneumatic. However, working of both the types of shock absorbers is same.
A shock absorber is generally coupled with a spring, which convert sudden shock waves into oscillatory motion. This oscillatory motion gives us instant relief from the shock but, nobody can have his or her whole ride with these oscillations.
Here is the need of shock absorber arises, it is used to damp those oscillations which are made by the springs.
A general shock absorber contains a perforated piston in a hydraulic chamber. The chamber is totally sealed and hence if piston has to make some movement the only way is to let the hydraulic liquid pass through it.
When a shock comes, piston has to move due to shock. When the piston moves than the hydraulic liquid in the shock absorber has to pass through it.
When the liquid is passed through the very tiny perforated holes in the piston the piston has to do some work against it. That work is done on that expense of the energy generated due to the shock and hence soon the shock absorber loses all the shock energy, which results into no oscillation and smooth ride.

Function
The shock absorber can make the vehicle run smoothly. The shock absorber has the function of buffering vibration. If there is no shock absorber in the suspension, the vehicle will run unsteadily and shake. At present, many automobile shock absorbers are hydraulic shock absorbers. The principle is to fill a cylinder with a small hole and a piston with pressure oil. When the spring vibrates, the oil will be forced to flow through the small hole, thus limiting the effect. The size of the hole diameter determines the size of the restriction. If the diameter of the small hole is small, there is a strong restriction, and the vehicle stability will be high; On the contrary, the car is more comfortable. When designing, the size of the small hole diameter should give consideration to stability and comfort.

Service
Nuopei Auto Parts’ business philosophy is simple : We aim to provide on unparalleled level service to our customers.

How do we achieve this ?
1.Quality Parts :We Only Suplly parts of highest quality
2.Dedicated Staff :Every Member of our staff is fully dedicated to delivering on customers’ expectations.
3.Technical Expertise : Years of Industry Experience, Combined with the state of the art technology,allows us to identity customers’parts requirements, even from just a vehicle chassis number.
4.Delivery Service .Nuopei offers 7 days carrier service across the world
5.After Sales Service : Our Commitment to the customer does not end with a sale,Customer Satisfaction is of paramount importance before, during and after every transaction

Advantage
Stable Quality, Favorable Price,Professional sales consultant ,24 hour Online Customer Service

1,Are you a manufacture or Traning company?
We are manufacturer and trading company of auto parts,We have been in this line for more than 12 years.
2,What kinds of parts can you supply?
We are committed to providing one-stop shopping services for European heavy trucks’user.(Especially on cooling system parts,suspension system parts,brake system parts,clutch parts,SCR post-processing system parts,electrical system parts and body parts.
3,What is your production Lead Time?
1 working day for stock;30 days for mass production.
Express Delivery
A full range of sea and air logistics system to provide you with the most convenient logistics experience,rapid response to save you time.
4.How about Quality and after Sell Service ? The Warranty is One Year , If there is any real quality problem , we will give refund or send new products as compensation
5.What is your package ?
Neutral Box or Customize According to Customer Requirement
6.Can I get One Sample ?
We can Provide Sample if customer willing to pay sample fee .
7.Do you test our goods before delivery ?
Yes We Have Tested 100% Before Delivery
8. What About Delivery Time ?
Ususally 7-14 days, if very big quantity need 35 days
9.Can you Produce According to samples ?
If quantity is ok we will develop according to your samples

Foshan Nuopai Import and Export Co., Ltd is a well-known professilal supplier in the field of commercial vehicle. Customer first is our company’s core value since 2004. Offering one-stop consulting and purchasing station of the most professional & best service is our target.There are three main business of our company: importing parts for local market, exporting parts for international market . We have a matured professional technician team that good at European brand trucks of SCANIA, VOLVO, BENZ, DAF, MAN ,IVECO , RENAULT and so on.We have established good cooperative relationships with customers from Europe, Middle East,South Asia, Southeast Asia, Africa and other countries/regions. Furthermore, our export business is still increasing rapidlly. Based on sincere faith, our company pays much attention on credibility and is willing to make friends with clients from all over the world.We aim to supply BETTER services for new and existing customers!