Trailer Parts 70×7-1 70×6-3 70×12-4 Eye To Eye Leaf Springs

Double Eye Leaf Spring 70×7-1/ 70×6-3/ 70×12-4 | For Heavy Duty Semi Trailer | Material 60Si2Mn | Fatigue Testing ≥180K

LEAF SPRING 70×7-1/ 70×6-3/ 70×12-4

What's advantages of our leaf spring ?

1. OEM qualtity control to make sure that our leaf spring could long times service. All of our products is official process without any process deleting.

2. Fatigue testing pass through al the international standard, according to our customer requirement.

3. Especiall the torlerance controll of key dimension is 50% higher than other factories.

4. Our engineers got more than 20 years experience in doing this industry. We can slove all problem you met before.

5. Strictly quality control. Any complain from you will be quickly treated, and the solution would be given to you inside of 3 days.

6. Provide customers with any type of customized production.

How long would be needed to your order?

Our capacity of production one simple type leaf spring is 600 Tons/8 hours.

Technical Standard

1. Single piece leaf spring hardness need to be HB378-445 after heat treatment;

2. Overheating, overburning, cracking, folding, bruising and other defects are not allowed on surface;

3. Each sinlgle leaf spring need to do stress shot peening treatmnet;

4. After the spring assembling, the center bolt must be punched and riveted;

5. Bolt mechanical performance level: 8.8-GB3098.1-2000;

6. The surface defects of bolts shall be implemented according to GB5779.1-2000;

7. Tolerance of bolts is according to GB3103.1-1982 Grade B product ;

8. The spring assembly is painted with black paint or as requested, according to QC / T484-TQ9;

9. Other technical requirements shall be implemented according to GB / 19844-2005.

Product Details

Drawing Details

Production & Packing

Excellent Pre-sale Service

1. According to your specification request, provide the best price for you.

2. After you confirmed the specification and price, our engineers will draw a Official Drawing for you confirm.

3. After our Finance Department confirmed your deposit or Irrevocable L/C, we will start manufacture the products for you.

4. Update the progress of production to you in time, to help you know your order details progress.

5. After the product manufacture finished, if you need, we will arrange shipping for you.

With our professional skill, you just need to pick your products up at the destination place, and don’t need to worry about the shipping at all.

Our Production Line