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Rear Air Suspension Spring for X5 (E70) X6 (E71, E72) OEM 37126790078 (customized various models)
US$35.00-60.00
100 Pieces
Sample price:US$60.00/piece.Request sample

Product profile

Customization

Available

Part

Air Spring

Position

Rear

Model NO.

OEM

Type

Gas-Filled

Spring Type

Air Spring

Spring Material

Rubber+Steel

Structure

Double Cylinder

Suitable for Car Brands

OEM

Damping Force Direction

Single Effect

Transport Package

OEM

Specification

400-100

Trademark

OEM

Origin

Qing Dao

HS Code

7320909000

Production Capacity

1000000

Key features

Non-linear Elastic Control: Ideal non-linear characteristics effectively limit amplitude, avoid resonance, and prevent shock.
Adaptive Load Handling: Maintains constant natural frequency and vibration isolation effect regardless of load changes.
Adjustable Stiffness: System stiffness can be adjusted by changing air chamber volume or inner cavity pressure.
Height Stability: Vehicle body height remains unchanged with load variations when using height adjustment devices.
Superior Damping: Orifice between chambers absorbs energy to suppress resonance and improve damping characteristics.
Lightweight Design: Significantly lighter than steel springs, consisting mainly of rubber bladder and covers.
Excellent Sound Insulation: Rubber and air materials effectively absorb high-frequency vibrations and block sound transmission.
Multi-Load Versatility: Same air spring meets multiple load requirements by adjusting internal pressure for different capacities.

Company profile

Qingdao Century Hengyuan Machine Co., Ltd.
3D Software DesignODM ServicesFlexible CustomizationMinor Customization
Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2020-08-11Nearest Port: Qingdao PortAverage Response Time: ≤2.02hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA, EXW, Others

AI-Powered supplier vetting

SummaryThe supplier is a limited company with three employees, no stated parent-group affiliation, and a valid import/export license. It is identified as a professional technical supplier offering 3D software design, ODM, OEM for popular brands, and multiple forms of customization. However, it launched no new products in the past year and has no available SDK. Service-management controls are weak: no written procedures or records were provided for supplier assessment, corrective and preventive actions, or complaint handling. The supplier has no inventory, overseas warehouse, showroom, agent, or branch service capability. Its business scope covers metal products, building materials, construction-related products, electronic special equipment, and installation or maintenance services. Financial records are referenced for 2021–2023, but the provided information does not establish financial strength. No certifications, customer cases, or production assets/capacity are explicitly documented.
Supplier typeThe supplier is explicitly identified as a professional technical supplier and a limited company. Its stated business scope covers metal products, building materials, electronic special equipment, and installation or maintenance services; it has three employees, no stated group affiliation, and a valid import/export license.
CertificationsThe supplier is reported to hold a valid import/export license. No other certification information is provided, so certification coverage beyond trade licensing cannot be assessed.
After-Sales capabilityThe supplier has no overseas warehouse, showroom, agent, or branch service capability. It also has no written procedures or records for effective complaint handling or corrective and preventive actions, indicating explicitly limited documented after-sales support controls.
R&D capabilityThe supplier reports professional R&D capability, 3D software design services, ODM services, and OEM services for popular brands. Conversely, it launched no new products in the past year and has no available SDK, so its broader innovation strength is mixed.
Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, as well as 3D software design and ODM services. These statements provide direct evidence of broad customization capability.
Client casesThe supplier states that it provides OEM services for popular brands, which is evidence of serving at least that type of customer. However, no customer names, project details, or verifiable case records are supplied.

Product Q&A

Q:What is the main material of the air spring?
A:
The air spring is made of Rubber+Steel, specifically composed of a rubber bag and steel covers.
Q:How does the air spring handle different loads?
A:
It maintains a nearly unchanged natural frequency and vibration isolation effect under different loads.
Q:Is the stiffness of the air spring adjustable?
A:
Yes, stiffness can be adjusted by changing the volume of the air chamber or the pressure of the inner cavity.
Q:Does the air spring maintain vehicle height stability?
A:
Yes, with a height adjustment device, the vehicle body height does not change with load increases or decreases.
Q:What are the advantages over steel springs?
A:
Air springs are lighter, provide better sound insulation, and absorb high-frequency vibrations more effectively.

Send Inquiry

*To:Qingdao Century Hengyuan Machine Co., Ltd.Qingdao Century Hengyuan Machine Co., Ltd.
*Content:
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