Triple Convoluted 3B7994 Replaces Firestone Air Spring W01-358-7994/FT 330-29 546 Shock Absorber

OEM NO.

Specifications and Detailed Technical Parameters: 3B7994

• Nut/blind nut

Top plate screw (nut) teeth: 3/8-16UNC,3/4-16UNC

Bottom cover plate screw (nut) teeth: 2×3/8-16UNC

The screw center distance of the Top cover plate: 140 mm

The screw center distance of the bottom cover plate: 157.5 mm

• Air hole/air inlet/air fittings

Air hole/air inlet: 1/4NPTF

• Rubber Bellows

Top plate diameter (width): 231 mm

Diameter (width) of the bottom cover plate: 231 mm

Rubber bellows stroke: 130mm-460mm

• Bumper block/bumper block

With bumper block

• Belt loop/Belt loop

With belt loop: Two belt loop

Min. pressure: 0 bar

Return force to min.height: ≤400N

Overall weight with clamped plates: 5.9kg

Pneumatic application-static characteristic values

Force F[KN]

The related picture of 3B7994

Air Bag 3B7994 can replace W01-358-7994/W01 358 7994/W013587994/WO1-358-7994/WO1 358 7994/WO13587994. It is the use of compressed air (water) as the medium, is the use of its internal compressed air reaction as an elastic restoring force of an elastic element. From the point of view of structure, compound air spring, is between the capsule type and membrane type of a type, it combines the advantages of the two kinds of air spring, has a lower spring stiffness, but the manufacturing process is complex.

Detection system

Our products through strict system testing, spring fatigue test, high and low test equipment,
Tensile testing machine, spring tensile testing machine, rubber dynamic and static testing equipment, rubber bushing fatigue testing machine, MTS testing equipment, air spring tightness test, fully are in line with international standards.

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.