W013586901 Firestone Convoluted Air Spring With 3/4 NPT Air Inlet 3/4 NPT With Bumper Block

W013586901 Firestone Convoluted Air Spring With 3/4 NPT Air Inlet 3/4 NPT With Bumper Block

Specifications and Technical Data of W01-358-6901


❶Nut / Blind Nut

Top Cover Plate Screw (Nut) Tooth : 2 pcs X 3/8-16UNC
Screw Center Distance of Top Cover Plate : 89 mm
Bottom Cover Plate Screw (Nut) Tooth : 2 pcs X 3/8-16UNC
Screw Center Distance of Bottom Cover Plate : 89 mm

❷ Gas Hole / Air inlet / Air Fitting
Gas Hole / Air inlet : 3/4NPTF
Screw Center Distance Between Gas Hole and Nut : 44.5 mm

❸ Cover Plate
Top Cover Plate Diameter: 6.31 inches / 160 mm
Bottom Cover Plate Diameter: 6.31 inches / 160 mm

❹Rubber Bellows
Rubber Bellows MAX Diameter: 251 mm
Rubber Bellows Natural Diameter : 224 mm
The Working Stroke : up to 260 mm to MIN 75 mm
Maximum Height : 260 mm
Minimum Height :75mm
Stroke Height : 185mm

❺ Bumper block / Buffer block
With Bumper Block

❻ Girdle Hoop / Girdle Ring
With Girdle Hoop :no One Pieces of Girdle Hoop

Description Assembly Order No.
Blind nuts, 1/4 NPT W01-358-6910
Blind nuts, 1/4 NPT, bumper W01-358-6911
Blind nuts, 3/4 NPT W01-358-6900
Blind nuts, 3/4 NPT, bumper W01-358-6901
Countersunk steel bead rings,
13/4 bolts, nuts, washers W01-358-6923
Rubber bellows only W01-358-0138


OEM Original Equipment Manufacturer:

Composition of complex air springs:

Upper steel plate: the upper cover is under pressure and seals the internal air
Waist ring: a stable part of the skin to prevent deformation
Connotation of screw holes: fixed for the installation of air springs in cars or equipment
Inflator/Air Inlet: Air porosity by filling the air-filled air spring
Flexible bellows: main components for locking air up and down and flexible activities
Rubber bumper (optional): Prevents the air spring from colliding with the bottom plate and the bottom plate. You can choose neither
Connotation of screw holes: fixed for the installation of air springs in cars or equipment
Lower steel plate: the lower steel plate is under pressure and seals the internal air

How to Calculation For Pneumatics, Such as

• Mass To Be Lifted 2000 M (Kg)
• Desired Stroke 190 S Min (Mm)
• Number Of Air Springs 4 N
• Minimum Installation Height 190 H Min (Mm)
• Minimum Installation Diameter 500 D (Mm)
• Air Pressure 6 P (Bar)

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.

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.