How to use gas spring correctly
May 09, 2025
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1. Proper Installation Methods
A. Mounting Types
| Type | Application | Example |
|---|---|---|
| Ball Joint | Cabinet doors, TV lifts | 10mm ball socket for 360° rotation |
| U-Bracket | Heavy lids (toolboxes) | Bolt-on mounting for stability |
| Threaded End | Adjustable desks, beds | M6/M8 threads for direct screw-in |
B. Step-by-Step Installation
Calculate Required Force
Formula: Force (N) = (Door Weight (kg) × 9.8) × 1.2 (safety factor) ÷ Number of Struts
Example: A 15kg cabinet door with 2 struts → (15×9.8)×1.2÷2 = 88.2N per strut
Positioning
Optimal angle: 30°–60° from vertical when closed.
Avoid over-extension (max stroke length should match door opening).
Secure Mounting
Use M5 or M6 screws (check load rating).
Pre-drill holes to prevent material splitting (especially in particleboard).
2. Force Adjustment & Customization
A. Adjusting Gas Strut Force
Too Weak? → Door won't stay open → Replace with higher-force struts (e.g., 100N → 120N).
Too Strong? → Hard to close → Reduce force or add a soft-close damper.
B. Custom Solutions
Variable Force Struts: Adjustable via valve (e.g., Suspa CGS series).
Lockable Gas Springs: Hold position at any angle (e.g., for hospital beds).
3. Maintenance & Troubleshooting
A. Maintenance Tips
Lubrication: Apply silicone spray (not oil) to the rod every 6 months.
Inspection: Check for:
Oil leaks (seal failure).
Rust (use stainless steel struts in humid areas).
B. Common Issues & Fixes
| Problem | Cause | Solution |
|---|---|---|
| Door drops suddenly | Gas leakage | Replace entire strut (no refill) |
| Jerky movement | Dirty rod | Clean with isopropyl alcohol |
| Squeaking noise | Dry ball joint | Apply lithium grease |
4. Safety & Compliance
Load Limits: Never exceed the max force rating (check manufacturer specs).
Temperature Range: Standard struts work at -30°C to +80°C; for extreme temps, use specialized models.
Certifications: Look for EN 1570 (EU) or ANSI/BIFMA (US) compliance.
