Air Springs Assembly Cross OEM No. Twthill 1998301 Cushion
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
Goodyear 2B14383
Goodyear 578923356
Fire-stone W01-358-7557
Fire-stone W01 358 7557
Fire-stone W013587557
Fire-stone WO1-358-7557
Fire-stone WO1 358 7557
Fire-stone WO13587557
Fire-stone w01-358-7557
Fire-stone w01 358 7557
Fire-stone w01 358 7557
Fire-stone 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 Profile
Guangzhou Guomat air spring Co., Ltd. was established in 2008 and is located in Guangzhou, the capital city of Guangdong Province. The company's production plant covers an area of 20,000 square meters and is located in Taihe Town, Baiyun District, Guangzhou City. With the continuous development of the company, it is gradually equipped with modern workshops and advanced rubber air spring equipment. It is one of the important air spring production bases in China. At the same time, Gomart used domestic advanced air spring processing equipment and introduced foreign air spring production technology, combined with the company's unique production process, and strictly implemented production in accordance with international standards to produce advanced products. All products comply with ISO9001, ISO/IS16949 standards.
The main products of Guangzhou Guomat air spring Co., Ltd. are: rubber air springs, air suspension springs, rubber air springs for automobiles, airbags for passenger cars and trucks, industrial air springs, etc. The products cover buses, luxury cars, trucks, Commercial vehicles, rail vehicles, industrial machinery, industrial equipment and other industries. The company has hundreds of models and styles of products. At the same time, it can also carry out directional transformation and design of products according to the special needs of users, providing users with one-stop service.
Factory workshop
FAQ
Q1:Can you produce the product according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q2: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q3: What certification does your product pass?
A: Our products are certified to ISO/TS16949:2009 international quality standards. Please rest assure that we have very strict Quality Control Systems.
Q4 : Can I use my own logo?
A:Sure. We can do as per the customer's requirements.
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