JBS Type Air Bellow Vibration Isolator
The JBS air bellow vibration isolator offers excellent damping performance, making it ideal for precision equipment. Its built-in damper rapidly suppresses equipment shaking to ensure operational stability. The height can be easily adjusted using a leveling valve, accommodating various installation conditions. An integrated lower limit stopper prevents over-compression damage. This series is compatible with clean room environments and supports an optional valve system for enhanced isolation control.
What Are the Features of the JBS Type Air Bellow Vibration Isolator?
・Excellent damping performance
・Built-in damper quickly converges the shaking of the equipment
・Height can be adjusted by leveling valve
・Built-in lower limit stopper
・Compatible with clean rooms
・Support valve system option can be selected
What Are the Key Parameters of the JBS Series Air Bellow Vibration Isolator?
The JBS series uses air springs as vibration isolation elements. They can be used independently. When equipped with a high-precision leveling valve, the working height is 116 ± 5 mm.
1. Complete System Configuration
Basic Configuration: More than 3 air springs (based on the three-point leveling principle; typically designed in symmetrical pairs when using four or more units).
Extended Configuration: When multiple air springs are connected in parallel, three leveling valves must be used to maintain horizontal balance.
2. Performance Specifications
Vertical Natural Frequency: 3–5 Hz (depends on the load)
Horizontal Natural Frequency: 3–5 Hz (strongly related to load stiffness)
Settling Time: Less than 1 second
Leveling Accuracy: ±0.05 mm (with Casby high-precision leveling valve)
Vibration Isolation Grade: VC-B level
Fatigue Life: Over 1 million cycles (Third-party tested, compliant with GB/T13934-2006 standard)
Operating Temperature Range: -57°C to +60°C
What Are the Application Areas of the JBS Air Spring Vibration Isolator?
Precision measurement equipment, optical inspection systems, MRI (magnetic resonance imaging) devices, high-precision laser cutting platforms, high-precision machining tools, and high-precision equipment used in aerospace and military industries.
JBS Type Air Bellow Vibration Isolator
JBS Type Air Bellow Vibration Isolator Data Chart
| Songxia Order No. | A (mm) | B (mm) | H (mm) | D (mm) | Load (Kg) |
|---|---|---|---|---|---|
| JBS001 | 116 | 140 | 60–130 | 10 | 400 |
| JBS002 | 210 | 230 | 60–145 | 12 | 800 |
| JBS003 | 300 | 330 | 60–150 | 16 | 2500 |
| JBS004 | 390 | 420 | 60–150 | 16 | 3500 |
| JBS005 | 690 | 720 | 70–160 | 22 | 200000 |
Measured curve graph
The gray curve represents the vibration acceleration before isolation; the red curve represents the vibration acceleration after isolation.
Under the rated load, the equipment’s natural frequency is below 5 Hz. The natural frequency is affected by the load weight; when the load is insufficient, the system’s natural frequency will increase.
The system is affected by external disturbances, with a self-balancing time within 1 second. The amplitude attenuation of 90% occurs within 0.5 seconds.
We are a manufacturer specializing in the research and production of rubber air springs, with over 30 years of experience. Our products can serve as replacements for internationally renowned brands such as Firestone, Contitech, Dunlop (FR), Festo, Norgren, and Weforma.
Due to limited information available on our website, please email us at [email protected] for more detailed drawings and specifications of our air springs
| Specification | PSB-D145 | PSB-D170 | PSB-D230 | PSB-D300 | PSB-D360 |
|---|---|---|---|---|---|
| Vibration Isolation Method | Bellows Air Spring | ||||
| Operating Height (H) (mm) | 127 | 127 | 127 | 127 | 127 |
| Minimum Height (mm) | 117 | 117 | 117 | 117 | 117 |
| External Dimensions (W×D) (mm) | 200 × 200 | 230 × 230 | 280 × 280 | 330 × 330 | 420 × 420 |
| Mounting Dimensions (A×B) (mm) | 180 × 180 | 210 × 210 | 250 × 250 | 300 × 300 | 390 × 390 |
| Mounting Hole Diameter (C) (mm) | Φ12 | Φ12 | Φ16 | Φ16 | Φ16 |
| Top Plate Thickness (T1) (mm) | 16 | 16 | 16 | 16 | 16 |
| Bottom Plate Thickness (T2) (mm) | 9 | 9 | 9 | 9 | 9 |
| Product Weight (kg) | 12 | 15 | 24 | 36 | 54 |
| Load Area (cm²) | 196 | 260 | 470 | 750 | 1070 |
| Unit Load Capacity (kg) | 800 | 1050 | 1900 | 3000 | 4250 |
| Supply Pressure (MPa) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Damping System | Silicone Oil | ||||
| Natural Frequency | Vertical: ~3Hz / Horizontal: ~3Hz | ||||
| Leveling System | Auto Leveling |
Our company can provide custom-made replacement products for the following Kurashiki model: Passive Vibration Isolation Unit PSB-D (Built-in Damper).
For more details, please contact us at:
📧 [email protected]
📞 +86 130 3211 2360