Full Stroke 85MM Air Spring Actuator Norgren PM/31042 Pneumatic Air Suspension
The Specifications of AIRSUSTECH 2B4.5×2P
[1] Min. compressed height: 65 mm
[2] Maximum height: 150 mm
[3] Working stroke: 85 mm
[4] Port size: G3/8
[5] Threaded hole type: 3×M6
[6] Cover plate diameter: 110 mm
[7] Maximum diameter of rubber bellows: 125 mm
[8] Installation space: 140 mm
[9] Center distance diameter: 93 mm
The Technical Parameters of 2B4.5×2P Air Spring
Vibration isolation - dynamic characteristics values
| Pressure P [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V[l] |
| Force (Load) [kN] | 1.1 | 1.5 | 2.0 | 2.4 | 2.8 | 3.2 | 0.7 |
| Spring Rate [N/cm] | 440 | 560 | 680 | 805 | 925 | 1040 |
| Natural Frequency [Hz] | 3.2 | 3.0 | 3.0 | 2.9 | 2.9 | 2.8 |
Pneumatic application - static characteristic values
| Pressure p | [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol.[l] |
| Height H [mm] | 140 | 0.8 | 1.1 | 1.5 | 1.8 | 2.2 | 2.5 | 0.74 |
| 120 | 1.4 | 1.9 | 2.4 | 2.9 | 3.4 | 3.9 | 0.66 |
| 100 | 1.8 | 2.5 | 3.1 | 3.7 | 4.4 | 5.0 | 0.54 |
| 80 | 2.3 | 3.1 | 3.8 | 4.6 | 5.4 | 6.2 | 0.40 |
Critical Guidelines for Air Bellow Installation and Operation
1. Thrust Management
• Pre-Installation Check: Inspect bellows for transport or storage damage before assembly
• Safety First: Never inflate until fully secured to prevent uncontrolled expansion
2. Clearance Requirements
• Maintain sufficient operational clearance around the bellow
• Utilize full metal contact surfaces for force distribution
• Mandatory Lateral Guidance: All air bellows require side guides for stability
• Deactivation Protocol: Fully deflate before removal or disassembly
3. Environmental Protection
• Prevent continuous contact with:
Hydraulic oils / Lubricants / Solvents / Metal debris / Welding sparks
• Special Media Consultation: Contact AIRSUSTECH for applications involving unusual chemicals (provide concentration/temperature details)
4. Safety Stops
• Essential Protection: Install mechanical stops at both compression and extension extremes
• Damage Prevention: Stops prevent overtravel-induced structural failure
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