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Micro Gas Spring Solutions

Precision-engineered miniature gas springs for compact spaces—delivering light thrust, short stroke, and silent operation

Micro Gas Spring Product Image

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.

The core value lies in meeting the stringent demands of confined spaces for "light thrust, short stroke, and low noise"—making it an irreplaceable precision micro-actuator where traditional mechanical springs or standard gas springs fall short.

2. Core Dimensions & Force Values

Micro gas springs feature ultra-compact design with refined force options to accommodate diverse miniaturized equipment requirements.

ParameterSpecification RangeRemarks
Tube Diameter (Ø)8 mm / 10 mm10 mm is the market standard, most widely applied.
Rod Diameter (Ø)4 mm / 5 mm / 6 mmRod diameter determines load capacity and structural strength.
Stroke20 – 130 mmIncrements of 5 mm provide flexible selection options.
Force (Thrust)30 – 120 N30 / 50 / 80 / 100 N are standard stock configurations.
Unit Weight≤ 60 gApplies 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 IndicatorStandard RequirementRemarks
Dynamic Noise Level≤ 45 dB (@ 0.3 m distance)Ensures quiet operation, meeting precision instrument requirements.
Cycle Life≥ 50,000 cyclesGuaranteed leak-free operation under rated load and stroke.
Salt Spray Test24 h: white rust ≤ 5%Standard corrosion resistance; 48 h premium option available.
Unlock Force15 – 25 NPrecise 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 TypeSpecificationTypical Application
Metal ThreadedM5×0.8 thread (rod end & tube end)High-strength applications, precise alignment, or nut-fixed installations.
Plastic Quick-LockPush-fit into Ø6 hole (no nut required)Fast assembly, plastic or thin-sheet structures; greatly simplifies installation.
Ball JointØ6 mm stainless steel ball / POM socketRequires 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.

① Can you manufacture 8 mm tube diameter?
Yes, but with limitations: maximum force is 60 N, stroke ≤ 80 mm; minimum order quantity (MOQ) is 500 units.
8 mm specs: force/stroke/MOQ constraints
② Can noise be reduced below 40 dB?
Achievable at 30–50 N force range, reaching 38 dB. Requires secondary oil tuning and sample testing on customer equipment for validation.
38 dB requires: force range / oil tuning / field testing
③ What is the fastest lead time?
Standard forces 30/50/80 N and strokes 60/80/100 mm maintain stock of 1,000 units, enabling 48-hour shipment. Custom configurations require 10 days.
Stock specs: 48 h delivery
④ Can weight be further reduced?
Optional full aluminum tube + POM end connector configuration achieves 18% weight reduction at same specifications, though cycle life decreases approximately 20%.
Lightweight option: 18% lighter, 20% shorter life
⑤ What certifications are available?
Standard certifications include RoHS and REACH compliance. Medical-grade ISO 10993 biocompatibility certification requires an additional 7 days.
Default: RoHS/REACH; Optional: ISO 10993

Ready to Find Your Perfect Micro Gas Spring?

Our technical team is ready to assist with selection, customization, and rapid delivery.

Contact us today for a detailed quotation or technical consultation.