Price	Negotiable
MOQ	1 Piece
Delivery Time	3-8 Working Days
Brand	AIRSUSTECH
Place of Origin	Guangzhou, China
Certification	ISO/TS16949:2009
Model Number	F-240-4
Packaging Details	Strong Carton Box or as Customers Requirement
Payment Terms	T/T,Western Union,Paypal or Others,L/C,D/A,D/P,MoneyGram
Supply Ability	1000 PCS/Week

Product Details

Condition	New	Place of Origin	Guangzhou, China
Packaging Details	Strong Carton Box or as Customers Requirement	Max. Stroke	305 MM
Material	Natural Rubber	Model Number	F-240-4
Supply Ability	1000 PCS/Week	Certification	ISO/TS16949:2009
Brand Name	AIRSUSTECH	Payment Terms	T/T,Western Union,Paypal or Others,L/C,D/A,D/P,MoneyGram
Part Interchange	Yokohama S-240-4R	Price	Negotiable
Delivery Time	3-8 Working Days	Quality	High Performance
Max. Lifting Pressure	0.7 MPa	Minimum Order Quantity	1 Piece
Quality Assurance	1 Year	Compatibility	Easy to Replace

S-240-4R Rubber Air Spring Japan Yokohama Quadruple Convoluted Punch Air Bellows

Product Specifications

Parameter	Value
Design Height	206 mm
Max. Usable Height	316 mm
Minimum Height	111 mm
Total Stroke	205 mm
Compression Max. Outside Diameter	300 mm
Max. Internal Pressure	0.88 MPa
Internal Pressure Failure	2.9-3.9 MPa
Effective Area at Design Height (@0.49 MPa)	450 cm²
Volume at Design Height (@0.49 MPa)	10.1 L
Load at Design Height (@0.49 MPa)	22.2 KN
Dynamic Spring Constant at Design Height (@0.49 MPa)	235 n/mm
Natural Vibration Frequency at Design Height (@0.49 MPa)	1.6 Hz

Cross References

Related Punch Air Spring Models

AIRSUSTECH NO.	Yokohama Reference No.	Design High (mm)	Maximum High (mm)	Minimum Height (mm)	The Largest Diameter When Compressed (mm)
F-240-4	S-240-4	206	316	111	300
F-240-3	S-240-3	152	232	82	300
F-240-2	S-240-2	98	148	53	300
F-240-1	S-240-1	72	110	40	340

Technical Advantages

AIRSUSTECH self-sealing air bellows are engineered to deliver extended service life, thanks to their optimized design that minimizes rubber deformation during compression and extension cycles. This results in superior durability, making them ideal for high-frequency applications where long-term reliability is essential.
With a compact and space-efficient structure, these bellows enable a lower installation height compared to conventional spring systems. This design not only saves valuable space but also provides greater usable stroke within the same envelope, improving layout flexibility and motion efficiency in constrained environments.
The load capacity of AIRSUSTECH self-sealing bellows can be easily adjusted by regulating internal air pressure, allowing for versatile performance across a wide range of operating conditions. This adaptability makes them suitable for applications with variable loads or changing dynamic requirements.
When paired with an auxiliary air chamber and throttle valve, the bellows demonstrate excellent damping and attenuation characteristics. This combination effectively reduces system resonance, enhances motion smoothness, and improves overall control precision in demanding industrial applications.

Product Images