Guangzhou Guomat Air Spring Co., Ltd.
| Payment Terms | T/T, Western Union, Paypal or Others |
| Supply Ability | 1000PCS/Week |
| Delivery Time | 5-8 Working Days |
| Packaging Details | Strong Carton Box or as Customers Requirement |
| Material | Rubber and Steel |
| Quality Assurance | 12 Months |
| Packing | Neutral Box Or As Customers' Request |
| The Diameter Of Plate | 289mm |
| Applications | Industrial Or Others |
| Air Inlet | 1/4NPT |
| Crosses With | Twthill 1998301 |
| Sample | Available |
| Trade | Guomat Or Netrual |
| Type | Convoluted Air Springs |
| Brand Name | AIRSUSTECH |
| Model Number | 2B7557 |
| Certification | ISO/TS16949:2009 |
| Place of Origin | Guangzhou China |
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Product Specification
| Payment Terms | T/T, Western Union, Paypal or Others | Supply Ability | 1000PCS/Week |
| Delivery Time | 5-8 Working Days | Packaging Details | Strong Carton Box or as Customers Requirement |
| Material | Rubber and Steel | Quality Assurance | 12 Months |
| Packing | Neutral Box Or As Customers' Request | The Diameter Of Plate | 289mm |
| Applications | Industrial Or Others | Air Inlet | 1/4NPT |
| Crosses With | Twthill 1998301 | Sample | Available |
| Trade | Guomat Or Netrual | Type | Convoluted Air Springs |
| Brand Name | AIRSUSTECH | Model Number | 2B7557 |
| Certification | ISO/TS16949:2009 | Place of Origin | Guangzhou China |
| High Light | 1998301 Air Spring Assembly ，Industrial Air Spring Assembly | ||
AIRSUSTECH Air Springs Assembly Cross OEM No. Twthill 1998301 Double Convoluted Industrial Air Shocks
ALTERNATIVE NO
Twthill 1998301
Histeer 10316
Watson&Chalin AS-0089
Watson&Chalin AS 0089
Watson&Chalin AS0089
Reyco 19983-01 (21AR,74AR)
Goodyear 2B14-383
Goodyear 2B14 383
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Goodyear 578923356
Firestone W01-358-7557
Firestone W01 358 7557
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Firestone WO1-358-7557
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Firestone WO13587557
Firestone w01-358-7557
Firestone w01 358 7557
Firestone w01 358 7557
Firestone w013587557
Contitech FD 530-35 530
Contitech FD 530 35 530
Contitech FD530-35 530
Contitech FD530 35 530
Triangle 6412
Triangle 4530
Specifications and Detailed Technical Parameters: 2B7557
Nut/blind nut
Top plate screw (nut) teeth: M18×1.5, M12×1.75
Screw (nut) teeth of the bottom cover plate: 2×M12×1.75
Air hole/air inlet/air fittings
Air hole/air inlet: 1/4NPT
The air hole/air inlet is combined with the screw nut
Cover plate
Top plate diameter: 289 mm
Bottom cover diameter: 289mm
The screw center distance of the bottom: 158mm
Bell rubber bellows
Rubber Bellow Diameter: 353mm
Stroke: 104mm to 391mm
Bumper block/bumper block
With bumper block
Belt loop/Belt loop
With one piece of belt loop
Min. pressure: 0 bar
Return force to min.height: ≤400N
Overall weight with clamped plates: 7.7kg
Vibration isolation - dynamic characteristic values
Design Height H: recommended 285mm, minimum 265mm
| Pressure p[bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V[l] |
| Force(Load) [KN] | 18.7 | 25.1 | 31.6 | 38.2 | 44.6 | 51.2 | 23.5 |
| Spring rate [N/cm] | 1770 | 2250 | 2700 | 3180 | 3640 | 4100 | |
| Natural frequency [Hz] | 1.5 | 1.5 | 1.5 | 1.4 | 1.4 | 1.4 |
Pneumatic application-static characteristic values
Force F[KN]
| Pressure p [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V [l] | |
| Height H[mm] | 320 | 14.9 | 20.4 | 25.9 | 32.0 | 37.6 | 43.7 | 26.0 |
| 280 | 18.5 | 24.5 | 31.0 | 38.1 | 45.0 | 51.7 | 23.2 | |
| 240 | 21.1 | 28.0 | 35.5 | 43.3 | 50.3 | 57.9 | 20.5 | |
| 200 | 23.1 | 30.7 | 38.5 | 47.1 | 54.8 | 62.8 | 17.5 | |
| 160 | 24.8 | 33.1 | 41.3 | 50.4 | 58.4 | 67.2 | 14.1 | |
| 120 | 26.2 | 34.8 | 43.4 | 52.9 | 61.5 | 70.6 | 10.8 | |
Locking and unlocking systems for airbags
1. Airbag locking system If the airbag is not connected to the air source to control the height or has no air valve device, it is called a locking system. The system uses a fixed amount of gas as the elastic medium. A certain amount of gas is enclosed in the system, and the amount of gas remains unchanged under pressure and rebound.
2. Unlocking system of airbags
Unlocked systems for airbags are the most commonly used today. The air bag is connected to the air source through a height control or other air valve device, which is called an unlocked system. Whether at rest or under pressure, the bladder maintains relatively the same volume at the design operating height. Under the fixed condition of the height valve, the load force and elastic coefficient change with the change of the pressure of the fixed gas. With this system, the additional pressurized gas maintains the height of the air bag even as the air bag load changes. In this way, in the case of changes in load, since the system can keep the volume of the airbag unchanged, the natural vibration is more stable than the locking system. In short, the natural vibration frequency of the system will not change when the load changes.
Advantages of airbags
1. The elastic coefficient of spring expansion can be controlled;
2. Adjustable load carrying capacity;
3. Easy to achieve height control;
4. Reduce friction;
5. The load changes, but the natural frequency is basically unchanged.
Company Details
Business Type:
Manufacturer,Agent,Exporter
Year Established:
2005
Total Annual:
6999900-7999900
Employee Number:
159~179
Ecer Certification：
Verified Supplier
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&rsquo... 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&rsquo...
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