



We have several self-developed production lines and storage warehouses for trailer accessories. Contact
us directly for your full trailer parts needs.


Silicon manganese spring steel with higher strength, elasticity and hardenability.
2.Easy installation and maintenance
More simple structure, convenient installation and use, more convenient maintenance and replacement, cost-effective.
3.High strength heat treatment
While ensuring high strength, improve product toughness, remarkable strengthening and toughening effect, and better
comprehensive mechanical properties,
4.Outdoor antirust spray paint
Isolation, moisture-proof, anti-oxidation, anti-corrosion, prolong the service life, improve the protection force.


Model | Material | Straighten Length ±3mm | Assembly Arc Height ±6mm | The free arc height of the active point is ±6m | Design Load/ton | Design Stress MPa | Elastic Deformation ±6mm | Standard Weight Kg |
90*11-13 | 60Si2Mn | 1130 | 88 | 66 | 5.4 | 550 | 49 | 73.45 |
90*13-10 | 60Si2Mn | 1130 | 88 | 66 | 5.7 | 550 | 42 | 68.967 |
90*13-10 Double Groove | 60Si2Mn | 1130 | 88 | 66 | 5 | 550 | 46 | 58. 013 |
1. Other parameter requirements can be customized upon request
If you have any questions, you can chat with me.




Liangshan JiuZhou Machinery Manufacturing Co,Ltd. is located in China trailer production base - Shandong Province. China trailer production base.We are the most favored professional manufacturer of semi-trailer parts and components.We offer a wide variety of products to meet your diversified needs.
Since we have always adhered to the business principle of "quality first, customer first, integrity-based",we do our best to meet the potential needs of our customers. We understand that every market and customer is unique, therefore, we provide tailor-made solutions to meet specific needs and requirements.Solutions to meet specific needs and requirements.
Our scope of business includes mechanical equipment, wheels, brake drums, axle Shoes, Axles, Brake Pads, Suspension, Outriggers; Import and Export of Goods and Technology.
We have experience in exporting our products to the USA, Korea, Malaysia, Philippines, Middle East, Latin America, Africa and other countries and regions.
Professional after-sales staff will provide you with round-the-clock support to ensure smooth communication and timely resolution of any queries.

A: Generally, we will package it with fumigation-free wooden holder in brown boxes. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages
before you pay the balance.
Q3. What is your terms of delivery?
A: FOB, CIF, DDU, EXW, DAP.
Q4. How about your delivery time?
A: Generally, it will take 5 to 10 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and
the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them,
no matter where they come from.
Accurately measuring your trailer springs and choosing the correct replacements is important for the function of your trailer and will make the job of replacing them much easier. Using replacement trailer springs with the correct length will keep the axle in the same position, eliminating the need to move fenders or suspension components like spring hangers or equalizer hangers. Matching your weight capacity, arch, and leaf count will keep the ride height of the trailer the same and keep the ride characteristics the same. Taking the correct measurements and matching your existing trailer springs will get your trailer back on the road quickly and with fewer headaches.