GUANGZHOU GUOMAT AIR SPRING CO. , LTD
| Payment Terms | T/T, Western Union, L/C |
| Supply Ability | 1000pcs/week |
| Delivery Time | 2-8 work days |
| Packaging Details | Strong Carton Box Or As Customers Need |
| Type | Convoluted Type Air Spring |
| Material | Rubber + Steel |
| Operation | Gas-filled |
| Function | Reduce Impact |
| Warranty | 1 Year |
| Sample | Available |
| Contitech | FD 120-20 |
| Stroke | 77mm-270mm |
| Brand Name | GUOMAT |
| Model Number | 2B5220 |
| Certification | ISO/TS16949:2009 |
| Place of Origin | GuangDong, China |
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Product Specification
| Payment Terms | T/T, Western Union, L/C | Supply Ability | 1000pcs/week |
| Delivery Time | 2-8 work days | Packaging Details | Strong Carton Box Or As Customers Need |
| Type | Convoluted Type Air Spring | Material | Rubber + Steel |
| Operation | Gas-filled | Function | Reduce Impact |
| Warranty | 1 Year | Sample | Available |
| Contitech | FD 120-20 | Stroke | 77mm-270mm |
| Brand Name | GUOMAT | Model Number | 2B5220 |
| Certification | ISO/TS16949:2009 | Place of Origin | GuangDong, China |
| High Light | Contitech Air Spring 77-270mm ，FD120-20 Lift Axle Air Bags ，77-270mm Lift Axle Air Bags | ||
FD120-20 Contitech Double Convoluted Style Air Spring 77-270mm Lift Axle Air Bags
Product Description
| GUOMAT | 2B5220 |
| Contitech | FD120-20 FD 120-20 FD120-20 CI FD 120-20 CI |
FD 120-20 Rubber Air Spring Technical Data
Top cover plate diameter: 141mm
Bottom cover plate diameter: 141mm
Threaded holes: M8X15mm
Center distance between threaded holes:70mm
Air hole specifications:G1/4,G3/4
Maximum outer diameter of bladder: 218mm
Maximum height: 270mm
Minimum height: 77mm
Compressed height: 193mm
FD 120-20 736 Cross Automann SP2B08RA-C736
FD 120-20 736 Cross Automann SP 2B08RA-C736
FD 120-20 736 Cross MAC 2380 Z7
Double Convoluted Air Spring For Lift Axle
A Double Convoluted Air Spring is a specific type of air spring commonly used as the lifting mechanism for lift axles on trucks and trailers. Here's a breakdown of why it's well-suited for this application:
1.What is a Lift Axle?
An axle that can be mechanically raised off the road surface when not needed (e.g., when the vehicle is unladen or partially laden).
Purpose:To reduce tire wear, improve fuel efficiency, decrease wear on roads, and comply with axle weight regulations by only deploying the axle when the load requires the extra capacity.
2. Why is a Double Convoluted Spring Ideal for Lift Axles?
High Lift Capability: The long stroke is the primary reason. Lift axles need to retract completely, raising the tires high off the ground to avoid contact. Double convoluted springs excel at providing the necessary vertical travel to achieve this significant lift height.
Sufficient Load Capacity: While prioritizing lift height, they still provide sufficient air volume and pressure capacity to support the axle's share of the load effectively when lowered and inflated.
Reliable Deployment: When air pressure is applied, the spring extends predictably and forcefully to lower the axle smoothly onto the road surface.
Compactness: The design allows the necessary stroke within the spatial constraints around the axle and suspension components, especially when retracted.
Articulation: Provides the flexibility needed as the suspension moves over uneven terrain when the axle is lowered and loaded.
Durability (in this context): While they have more exposed rubber than sleeve springs, the intermittent use of a lift axle (spending much of its time retracted and unpressurized) generally means the double convoluted design offers sufficient lifespan for this specific application. The benefits of high lift outweigh potential wear concerns.
3. How it Works in a Lift Axle System?
1. Lifting (Axle Retracted): Air is exhausted from the spring(s). The spring collapses to its minimum height under the weight of the axle assembly. The double convolution design allows it to compress down significantly, pulling the axle and tires up high off the road.
2. Lowering (Axle Deployed): Compressed air is supplied to the spring(s). The spring inflates, extending its height. The long stroke of the double convoluted spring pushes the axle assembly downward forcefully until the tires contact the road and the spring reaches the pressure needed to support its share of the vehicle's load.
Company Details
Business Type:
Manufacturer,Agent,Exporter
Year Established:
2006
Total Annual:
5999900-6999900
Employee Number:
159~189
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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