Micro Gas Springs — Miniature Struts for Tight Spaces
Precision-engineered miniature gas springs for compact spaces—delivering light thrust, short stroke, and silent operation
1. Product Definition
Micro Gas Spring, also known as miniature gas spring, micro gas strut, or small gas spring, is a precision product created by proportionally scaling down standard gas springs.
These compact actuators are engineered for applications where space is at a premium and performance cannot be compromised. Whether supporting inspection hatches in medical devices or enabling smooth operation in handheld tools, micro gas springs deliver reliable, whisper-quiet motion control.
2. Core Dimensions & Force Values
Micro gas springs feature ultra-compact design with refined force options to accommodate diverse miniaturized equipment requirements.
| Parameter | Specification Range | Remarks |
|---|---|---|
| Tube Diameter (Ø) | 8 mm / 10 mm | 10 mm is the market standard, most widely applied. |
| Rod Diameter (Ø) | 4 mm / 5 mm / 6 mm | Rod diameter determines load capacity and structural strength. |
| Stroke | 20 – 130 mm | Increments of 5 mm provide flexible selection options. |
| Force (Thrust) | 30 – 120 N | 30 / 50 / 80 / 100 N are standard stock configurations. |
| Unit Weight | ≤ 60 g | Applies to 10–100 mm stroke range; ideal for weight-sensitive designs. |
3. Performance Indicators
While maintaining ultra-compact dimensions, micro gas springs are optimized for performance, with particular emphasis on low noise and extended service life.
| Performance Indicator | Standard Requirement | Remarks |
|---|---|---|
| Dynamic Noise Level | ≤ 45 dB (@ 0.3 m distance) | Ensures quiet operation, meeting precision instrument requirements. |
| Cycle Life | ≥ 50,000 cycles | Guaranteed leak-free operation under rated load and stroke. |
| Salt Spray Test | 24 h: white rust ≤ 5% | Standard corrosion resistance; 48 h premium option available. |
| Unlock Force | 15 – 25 N | Precise unlock force control for self-locking variants. |
4. End Connector Types
To accommodate diverse installation environments, micro gas springs offer multiple end connector options for rapid, reliable integration.
| Connector Type | Specification | Typical Application |
|---|---|---|
| Metal Threaded | M5×0.8 thread (rod end & tube end) | High-strength applications, precise alignment, or nut-fixed installations. |
| Plastic Quick-Lock | Push-fit into Ø6 hole (no nut required) | Fast assembly, plastic or thin-sheet structures; greatly simplifies installation. |
| Ball Joint | Ø6 mm stainless steel ball / POM socket | Requires 180° rotation or multi-angle articulation in complex linkages. |
5. Typical Applications
Leveraging their compact size, lightweight design, and precise thrust characteristics, micro gas springs are extensively deployed in space and weight-sensitive precision equipment.
- Small Inspection Hatches: Medical POCT (Point-of-Care Testing) devices, analytical instruments—providing lid support and cushioning.
- Handheld Tool Access Doors: Electric torque wrenches, precision measurement instruments—enabling smooth battery cover or service hatch operation.
- Mini Drawer Auto-Eject: Cash registers, test fixtures, precision storage cabinets—delivering gentle, automatic drawer extension.
- Unmanned Aerial Vehicle (UAV) Payload Doors: In weight-critical applications, providing reliable hatch actuation while minimizing payload burden.
6. Customer FAQs & Response Templates
Below are the most frequently asked questions during selection and quotation, with professional responses to quickly identify customer needs.