Secure position locking
Holds moving parts at the required stroke position for safer operation.
Elastic or Rigid Locking
Choose flexible comfort locking or firm locking support based on the application.
Custom lockable gas struts
Stroke, force, length, end fittings, material, and release method can be customized.
What Is a Locking Gas Spring?
A locking gas spring, also called a lockable gas strut, is designed to provide controlled pushing, lifting, positioning, and secure locking for moving parts under load. It allows panels, covers, seats, tables, and equipment parts to stop and hold safely at the required stroke position.
By actuating the release pin, the piston rod can move smoothly and be adjusted throughout the stroke. When the release pin is released, the lockable gas spring holds the application in place. Lockable gas springs are a type of adjustable gas spring and can be designed with elastic locking, rigid locking in extension, or rigid locking in compression based on the application requirements.
Need a custom lockable gas spring for your application?
Send us your stroke length, extended length, force requirement, end fitting type, locking direction, and application details. GASTAC can help recommend or customize a suitable custom locking gas spring solution.
Which Locking Gas Spring Type Should You Choose?
As a professional gas spring manufacturer, Gastac Gas Spring provides locking gas springs for different load directions, comfort requirements, and safety needs. The table below compares elastic locking, rigid locking in extension, and rigid locking in compression to help you choose the right type for your application.
| Comparison | Flexible | Rigid in Extension | Rigid in Compression |
|---|---|---|---|
| Rigidity in Tension | Good | Fully Rigid | High |
| Rigidity in Compression | Good | High | Fully Rigid |
| Release Valve Option | Yes | Yes | No |
| Typical Applications | Chair backs, seat height adjusters, and equipment for physically disabled users where the flexing gives a comfortable “bouncy” feel. Further applications include those where little or no extra force is applied once the gas spring has been locked, such as VDU height adjustment. | Applications for rigid in extension gas springs include hospital beds, aircraft, coach and rail seat back recline control, wheelchair recline systems, and support systems. | Applications include operating tables, massage tables, veterinary tables, wheelchair recline systems, and support systems. This type of locking gas spring is used where no movement can be tolerated when the apparatus is in its locked position. |
What Are the Main Types of Locking Gas Springs?
After comparing the main locking methods, you can review the common lockable gas spring types below. Each type is designed for a different locking direction, load condition, and application requirement.
Need a Custom Locking Gas Spring?
Every application has different load, stroke, mounting, and locking requirements. Gastac Gas Spring can customize locking gas springs based on your required stroke length, extended length, force, end fittings, locking direction, release mechanism, and material.
Whether your application requires elastic locking, rigid locking in extension, rigid locking in compression, a release button, or an integrated gas strut safety lock, GASTAC can help recommend or develop a suitable lockable gas strut solution.
Available Locking Gas Spring Designs
Gastac’s locking gas spring range includes standard lockable gas struts, cable release gas springs, steering column gas struts, automatic reset locking gas springs, and customized locking solutions for equipment, furniture, hatches, and industrial systems.
How Do Lockable Gas Springs Work?
A lockable gas spring combines compressed nitrogen force with an internal valve-controlled locking system. When the release mechanism is activated, the piston rod can move freely and be adjusted along the stroke.
When the release mechanism is released, the valve closes and the rod locks at the selected position. The locking effect can be rigid or elastic, depending on the required stability, comfort, and load support.
Locking Gas Spring Specifications
When selecting or replacing a gas spring, it is important to measure the key dimensions accurately. Start with the Rod Diameter and Body Diameter, which determine the strength and load capacity of the gas spring. Next, measure the Stroke, which is the distance the rod can travel between the fully compressed and fully extended positions. Finally, record the Extended Length, which is the total length of the gas spring from the center of one end fitting to the other when fully extended. By following these steps, you can ensure the correct specifications for your application and achieve reliable performance.
- Size: 4–40 mm
- Size of cylinder: 12–40 mm
- Rods: 4–20 mm
- Stroke: 20–550 mm
- Force: 10 N–5000 N
- Materials: Carbon steel and stainless steel
- Surface treatments: Chrome plating or black nitriding
10-22 Locking Gas Springs
| GASTAC Code | Stroke Length (mm) | Extended Length (mm) | Compressed Length C (mm) | Rod/Body Diameter (mm) | Force Range F1 (N) | Suspa Cross Reference |
| GTK102220110 | 20 | 110 | 90 | 10/22 | 80-400N | 2752293 |
| GTK102230130 | 30 | 130 | 100 | 10/22 | 80-400N | 2752294 |
| GTK102240150 | 40 | 150 | 110 | 10/22 | 80-400N | 2752295 |
| GTK102260190 | 60 | 190 | 130 | 10/22 | 80-400N | 2752296 |
| GTK102280230 | 80 | 230 | 150 | 10/22 | 80-400N | 2752297 |
| GTK1022100270 | 100 | 270 | 170 | 10/22 | 80-400N | 2752298 |
| GTK1022120310 | 120 | 310 | 190 | 10/22 | 80-400N | 2752299 |
| GTK1022160390 | 160 | 390 | 230 | 10/22 | 80-400N | 2752300 |
| GTK1022200470 | 200 | 470 | 270 | 10/22 | 80-400N | 2752301 |
| GTK1022250570 | 250 | 570 | 340 | 10/22 | 80-400N | 2752302 |
10/26 Locking Gas Springs
| GASTAC Code | Stroke Length (mm) | Extended Length (mm) | Compressed Length C (mm) | Rod/Body Diameter (mm) | Force Range F1 (N) | Suspa Cross Reference |
| GTK102620110 | 20 | 110 | 90 | 10/28 | 100-800N | 2752304 |
| GTK102630130 | 30 | 130 | 100 | 10/28 | 100-800N | 2752305 |
| GTK102640150 | 40 | 150 | 110 | 10/28 | 100-800N | 2752306 |
| GTK102660190 | 60 | 190 | 130 | 10/28 | 100-800N | 2752307 |
| GTK102680230 | 80 | 230 | 150 | 10/28 | 100-800N | 2752308 |
| GTK1026100270 | 100 | 270 | 170 | 10/28 | 100-800N | 2752309 |
| GTK1026120310 | 120 | 310 | 190 | 10/28 | 100-800N | 2752310 |
| GTK1026160390 | 160 | 390 | 230 | 10/28 | 100-800N | 2752311 |
| GTK1026200470 | 200 | 470 | 270 | 10/28 | 100-800N | 2752312 |
| GTK1026250570 | 250 | 570 | 340 | 10/28 | 100-800N | 2752313 |
Locking Gas Spring Applications
Need a custom locking gas spring for your application?
Send us your stroke length, extended length, force requirement, end fitting type, locking direction, and application details. GASTAC can help recommend or customize a suitable custom locking gas spring solution.
Locking Gas Springs Release System
XHJ001
XHJ002
XHJ003
XHJ004
XHJ005
XHJ006
Lockable Gas Springs Control Button
BS001
BS002
BS003
BS004
AN001
AN002
Gas Spring End Fittings
CYJ001
CYJ002
CYJ003
Bowden cables
GTBD001
GTBD002
GTBD003
Frequently Asked Questions
