Convoluted Air Spring Firestone W01-358-8025 W01-358-8038 Contitech FT 330-29 469 Rubber Triple Air Bag


Specifications and Tecnical Parameters: 3B8025

1. Min. Height:117mm

2. Max. Height: 460mm

3. Max. OD: 330mm

4. Top plate mounting thread: Single Combo Stud and 1pcs threaded hole
5. The screw center distance: 140mm

6. Bottom plate mounting threads: 2pcs

7. The screw center distance: 157mm

8. Top plate diameter: 231mm

9. Bottom plate diameter: 231mm

10. Bumper: Yes

11. Girdle hoop: two pieces

Cross Reference

How to indentify the air spring number

The air spring has two numbers, one is part number and the other is bellow number.

The easiest and fastest way to identify air springs is by the part number which normally located on the sticker on the top of the air bag.

If you don't know the part number, then you can measure it according to the following steps.

The first is to identify the bellows number, which is the first step in identifying any bag or air spring. The bellows are the rubber portion of the airbag, and this number will determine the ride height and weight capacity of that airbag. The bellows number is located on the rubber oval stamped into the rubber. All convoluted bags use will bead plates. It's the flat plates on the top and bottom of the bag. You need take note of any connection points or air fittings and measure the distance between them. It is also necessary to note the size of your air fitting as well as the diameter of the top plate. On the bottom plate, you'd take the same measurements, the diameter across the bottom plate, and the measurement between the screw or blind nut. Then a compressed height need to be measured. Remove any air from the bag and press it down by hand, measure the distance between the top and bottom plates, and compress. Also pay attention to whether the bag has an a bumper block/buffer. It's easy to determine if a bag has bumpers. The bag rocks when you compress it. On bags without bumpers, the plate will lie flat and you won't be able to shake it.

The picture of air spring/air bellow assy/air shocks/air balloon

Guangzhou Guomat Air Spring Co., Ltd. is located in Guangzhou, about 15min’s drive from Baiyun Airport. Our mainly products are air spring, rubber bellows, air suspension spring, air suspension compressor and refitted suspension system. They are widely used in bus, truck, cabin, vehicles’ seat, luxurious car and industrial machine field.

AIRSUSTECH is another brand of Guangzhou Guomat Air Spring Co., Ltd. 

AIRSUSTECH is focus on industrial air spring.

GUOMAT Factory gate：

Established in 2008, Our company covers 20,000㎡ and is located in Taihe Town Baiyun District. With the rapid development of our company, we are equipped with modernized workshop and advanced rubber air springs equipments now. We are the first company who started air spring business and has become one of the largest air spring manufacturing bases in China.

In 2017, we launched a collaboration with High Tech of US customers to customize the products of our customers and the logo of our customers. Every year, there are about 10,000 orders. In continuous cooperation, the products meet the international inspection standard ISO/TS16949:2009, and the customers are very satisfied with the products produced. This is our high recognition from American customers and also gives us Great motivation.

In 2018, we started cooperation with German GmbH, mainly industrial air springs, which are suitable for industrial equipment. We have successfully developed and produced the natural air-seal of the skin to reach the 700mm flanged air spring, the customer's annual demand is a few hundred.

With the development of business and demand for customers, our company introduced business with TomLog Corporation in 2010, our strategic cooperative partner in Taiwan. Then we developed air compressor program and air spring related business, in 2015, America Goodyear Corporation met with the transfer of shares in the North American plant, our company was granted with sale agent for air springs in China, providing more choice for our customers. Our company adopts the most advanced domestic air spring processing equipment and international production technology. Combined with unique production process, our company strictly execute international standards for production and spare no efforts to create the world-class products. We will endeavor to make air spring widely used at home and abroad, and let more and more customers to enjoy the best damping effect.