002878 Double Convoluted Air Spring 257-1 W013587897 12 Months Warranty

Hendrickson Auxiliary 002878 Firestone Double Convoluted 257-1 Air Spring W013587897


OEM Original Equipment Manufacturer:

Specifications and Technical Data of W01-358-7897

Firestone part number: W01-358-7897 / W013587897 / W01 358 7897
Firestone Corrugated Tube Number: 20-1
Compressed height: 3.12
Number of top plates: 3079
Top cover diameter: 6.31 inches / 160 mm
Number of bottom pistons: 3090
Bottom cover diameter: 6.31 inches / 160 mm
Screw center distance: 89 mm
Top cover screw (nut) teeth:

1 pcs X Combination Stud/Air Inlet Stud Outside Thread is 3/8-16

Bolt or Stud 1/2-13

Bottom cover screw (nut) teeth: 2 pcs XThreaded Hole 3/8-16 Blind Nut
Rubber bellows MAX diameter: 251 mm
Rubber bellows natural diameter 224 mm
Working stroke: up to 260 mm to MIN 75 mm
Air vent / air inlet: 3/8 NPT


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.