Locking Gas Springs
Controlled Positioning and Safe Motion Control
While a conventional gas spring is designed to support lifting and counterbalancing, a locking gas spring provides an additional level of control by allowing the load to be securely held at the desired position. Depending on the application or regional terminology, these products are also referred to as lockable gas springs, locking gas struts or lockable gas struts. Regardless of the name, they are engineered to combine smooth movement with reliable position locking.
At Newtone Gas Springs, we manufacture locking gas springs for OEM manufacturers and industrial applications where adjustable positioning, controlled movement and operator safety are essential. Unlike standard gas springs, locking gas springs allow the user to stop and hold a moving component at almost any point along its stroke, offering greater flexibility and improved ergonomic performance.
The ability to lock the piston rod in position makes these products particularly suitable for applications requiring variable adjustment rather than simple opening and closing. Whether supporting an adjustable medical device, industrial workstation, operator seat, machine cover or ergonomic furniture system, a locking gas spring provides smooth motion while helping maintain the selected position until the release mechanism is activated.
Every application presents different engineering requirements. Force, stroke, locking characteristics, mounting geometry, operating environment and expected service life all influence the final product specification. For this reason, every Newtone locking gas spring is developed according to the operating conditions of the application rather than relying solely on standard catalogue dimensions.
In addition to our standard product range, we also manufacture custom locking gas springs for projects requiring specific locking forces, dimensions, release systems or mounting configurations. Whether your project involves prototype development, OEM production or replacement of an existing locking gas spring, our engineering team works closely with you to recommend the most appropriate solution.
What Is a Locking Gas Spring?
A locking gas spring is a gas-filled motion control device that combines the lifting assistance of a conventional gas spring with an integrated locking mechanism. This mechanism allows the piston rod to be locked in one or more positions along its stroke, enabling the supported component to remain securely in place until the release system is activated.
Unlike a standard compression gas spring, which continuously applies an extension force, a locking gas spring allows controlled movement together with adjustable positioning. This makes it an ideal solution for applications requiring frequent adjustment, improved ergonomics and safe position holding under varying operating conditions.
Because these products are widely used across different industries, they may also be described as lockable gas springs, locking gas struts, lockable lift supports or position-locking gas springs. Although the terminology differs, the engineering objective remains the same: providing controlled movement together with reliable locking performance.
Applications of Locking Gas Springs
Unlike conventional gas springs that simply assist lifting and counterbalancing, locking gas springs are designed for applications where the load must remain securely positioned after adjustment. Their ability to combine smooth movement with reliable position locking makes them an ideal solution for equipment requiring flexibility, operator comfort and improved safety.
Also known as lockable gas springs, locking gas struts or lockable lift supports, these products are widely used across numerous industries where controlled positioning is an essential part of the equipment’s functionality.
Medical and Healthcare Equipment
Used in hospital beds, examination tables, treatment chairs and rehabilitation equipment requiring smooth adjustment and secure positioning.
Ergonomic Office and Industrial Furniture
Provide effortless adjustment for backrests, monitor supports, work surfaces and seating, locked at the most comfortable working position.
Industrial Machinery
Help maintain adjustable guards, operator panels, access covers and maintenance platforms in place during operation or servicing.
Transportation and Commercial Vehicles
Support adjustable seats, access panels and interior mechanisms where controlled positioning improves comfort and safe operation.
Laboratory and Scientific Equipment
Allow instruments and workstations to maintain the selected angle or height without additional locking devices.
Special OEM Applications
Integrated into custom-designed equipment where locking characteristics, release mechanism and operating force are tailored to specific requirements.
Why Choose a Locking Gas Spring Instead of a Standard Gas Spring?
A standard gas spring is designed to assist lifting and support movement, but it cannot normally hold the load securely at an intermediate position. A locking gas spring adds this capability by allowing the piston rod to lock at the selected position until the release mechanism is activated.
This additional functionality makes locking gas springs particularly valuable for equipment requiring frequent adjustment or ergonomic positioning. Instead of relying on separate locking mechanisms, users can adjust and secure the component using a single integrated solution.
| Standard Gas Spring | Locking Gas Spring |
|---|---|
| Provides lifting assistance. | Provides lifting assistance with integrated position locking. |
| Cannot normally hold intermediate positions. | Can securely hold the load at virtually any desired position. |
| Suitable for fixed opening movements. | Suitable for adjustable positioning applications. |
| Simpler operating principle. | Incorporates an internal locking valve mechanism. |
| Used where movement support is sufficient. | Used where movement support and position control are both required. |
Technical Specifications
Newtone locking gas springs are available across a wide performance range, allowing the correct force, stroke and production configuration to be matched to virtually any application.
| Specification | Value |
|---|---|
| Force Range | 25 N to 2,600 N (≈ 5.6 lbf to 585 lbf) |
| Stroke Lengths | 10 mm to 1,000 mm (≈ 0.39 in to 39.37 in) |
| Production Groups | Available in 8/21, 8/22, 10/27, 10/28, and 14/40 mm combinations |
| Operating Temperature | −35°C to +200°C (≈ −31°F to +392°F), depending on configuration |
How to Select the Right Locking Gas Spring
Selecting the correct locking gas spring involves more than choosing the required extension force. Because the gas spring must both support the load and hold it securely at the selected position, factors such as locking characteristics, mounting geometry, stroke length and the intended user interaction all influence the final product specification.
Whether the product is referred to as a locking gas spring, lockable gas spring, locking gas strut or lockable lift support, successful product selection begins with understanding how the equipment is expected to move and where the locking function will be used throughout the operating cycle.
Key Factors to Consider
| Selection Factor | Engineering Consideration |
|---|---|
| Extension Force | The gas spring should provide sufficient force to support the moving component while allowing comfortable adjustment and reliable position holding. |
| Stroke Length | The stroke must provide the required range of movement without limiting adjustment or exceeding the mechanical travel of the application. |
| Locking Characteristics | The application determines whether rigid locking or elastic locking provides the most suitable operating behaviour. |
| Mounting Geometry | Correct bracket positioning influences leverage, adjustment effort and overall locking performance. |
| Release System | Push buttons, levers, Bowden cables or other release mechanisms should be selected according to the way the equipment will be operated. |
| Operating Environment | Temperature, humidity, dust and corrosive conditions should be considered when selecting materials and sealing systems. |
Information That Helps Our Engineers Recommend the Best Solution
Every locking gas spring application is unique. Even products that appear similar can require different forces, locking characteristics or mounting arrangements depending on how they are used. For this reason, we evaluate the complete application before recommending a solution.
Customers do not necessarily need to prepare detailed engineering documentation. In many cases, a combination of photographs, basic dimensions, sketches or an existing sample provides enough information for our engineering team to begin evaluating the project.
| Application Information | Why It Is Important |
|---|---|
| Weight of the moving component | Helps determine the appropriate extension force. |
| Required adjustment range | Defines the necessary stroke length. |
| Desired locking positions | Determines how the locking system should function during operation. |
| Installation space | Determines the available extended and compressed dimensions. |
| Release method | Allows selection of the most suitable release mechanism for the application. |
| Operating environment | Supports the selection of appropriate materials and corrosion protection. |
| Existing locking gas spring (if available) | Helps simplify replacement projects or product optimisation. |
Common Selection Mistakes
Many locking gas spring performance issues originate during the specification stage rather than during manufacturing. Selecting a product based solely on force or overall dimensions may result in poor adjustment characteristics, uncomfortable operation or insufficient position holding.
Other common mistakes include choosing an incorrect stroke length, overlooking mounting geometry, selecting an unsuitable locking characteristic or using an inappropriate release mechanism for the intended application. Considering the complete operating system from the beginning generally leads to smoother adjustment, improved ergonomics and greater long-term reliability.
Installation Guidelines and Long-Term Performance
The performance of a locking gas spring depends not only on its internal locking mechanism but also on correct installation. Proper mounting geometry, suitable end fittings and an appropriate release system all contribute to smooth adjustment, reliable position holding and long service life.
Unlike conventional gas springs, locking gas springs are designed to support movement while maintaining the selected position. For this reason, the complete mechanism—including the gas spring, mounting brackets and release control—should be considered as an integrated system during the design process.
Selecting the Right End Fittings and Mounting Hardware
The end fittings and mounting brackets directly influence how a locking gas spring performs in service. Correct alignment allows the piston rod to move freely throughout its stroke while minimising unnecessary loads on the cylinder, valve system and internal locking mechanism.
Newtone offers a wide selection of ball sockets, eyelets, clevis fittings and mounting brackets suitable for both standard and customised OEM applications. Selecting the correct mounting components helps improve reliability, simplifies installation and contributes to consistent long-term operation.
| Mounting Component | Purpose |
|---|---|
| Ball Socket End Fittings | Permit smooth angular movement while compensating for minor alignment variations. |
| Eyelet End Fittings | Provide a simple and durable mounting solution for a wide range of industrial applications. |
| Clevis End Fittings | Offer secure pivot connections where controlled movement is required. |
| Mounting Brackets | Support correct installation geometry and contribute to reliable locking performance. |
Choosing the Appropriate Release System
The release system is a key part of every locking gas spring application. Depending on how the equipment is operated, different actuation methods may provide the most practical and ergonomic solution.
| Release Method | Typical Applications |
|---|---|
| Push Button Release | Suitable for manually adjusted equipment where the release mechanism is located close to the user. |
| Lever Release | Frequently used on adjustable seating, industrial equipment and operator workstations. |
| Bowden Cable Release | Allows remote operation when the release point cannot be positioned directly on the gas spring. |
| Custom Release Systems | Developed for specialised OEM applications with unique operational requirements. |
Factors That Influence Service Life
A locking gas spring is expected to deliver consistent performance over many operating cycles. Achieving this depends not only on manufacturing quality but also on correct application design and operating conditions.
| Factor | Effect on Performance |
|---|---|
| Correct Mounting Geometry | Promotes smooth movement while reducing unnecessary mechanical stress. |
| Proper Alignment | Helps protect the piston rod, guide components and internal locking mechanism. |
| Operating Temperature | Temperature variations may influence extension force and locking characteristics. |
| Operating Frequency | Applications with frequent adjustments require careful engineering consideration during product selection. |
| Environmental Conditions | Humidity, dust and corrosive environments should be considered when selecting materials and sealing systems. |
| Correct Release System | Ensures reliable locking and smooth operation throughout the life of the equipment. |
Maintenance Recommendations
Locking gas springs are sealed components that normally require very little routine maintenance. Nevertheless, regular inspection of mounting hardware, release mechanisms and moving parts helps maintain reliable operation throughout the product’s service life.
The piston rod should always remain clean and free from scratches, corrosion or contamination. Likewise, release cables and control mechanisms should be inspected periodically to ensure smooth operation and consistent locking performance.
Locking gas springs should never be disassembled or modified, as they contain high-pressure nitrogen gas and precision-engineered valve components designed for safe and reliable operation.
Custom Locking Gas Springs for OEM Manufacturers
Many applications requiring adjustable positioning cannot be solved using standard gas springs. In these cases, locking gas springs are developed specifically for the equipment, allowing controlled movement together with reliable position holding. Since every mechanism operates differently, OEM manufacturers often require customised locking gas springs designed around the exact needs of their application.
At Newtone Gas Springs, we design and manufacture both standard and custom locking gas springs for OEM manufacturers across a wide range of industries. Our engineering approach focuses on understanding how the equipment operates before recommending the most suitable locking system, ensuring reliable performance throughout the product’s service life.
Engineering Support Throughout Product Development
Selecting a locking gas spring requires more than defining a force value. The interaction between the gas spring, release mechanism and surrounding structure must all be considered together. During the development process, our engineers evaluate installation geometry, adjustment range, locking characteristics, release methods and expected operating conditions before proposing a solution.
Customers may provide CAD files, engineering drawings, prototype assemblies, photographs or existing components for evaluation. Even when only limited technical information is available, our engineering team can often recommend a suitable starting point and assist throughout prototype development.
By reviewing the complete application at an early stage, potential improvements can often be identified before serial production begins, helping reduce redesign work and improve long-term product performance.
Customisation Options
Every locking gas spring can be tailored to suit the specific functional and mechanical requirements of the application. Depending on the project, the following characteristics can be customised during the design process.
| Customisation Option | Description |
|---|---|
| Extension Force | Specified according to the operating requirements and load characteristics of the application. |
| Stroke Length | Optimised to provide the required adjustment range. |
| Extended and Compressed Length | Designed to suit the available installation space. |
| Locking Characteristics | Rigid or elastic locking options can be selected according to the application. |
| Release System | Compatible with push button, lever, Bowden cable or customer-specific actuation systems. |
| End Fittings and Mounting Hardware | Configured to match the installation geometry and mechanical requirements. |
| Material and Surface Finish | Available for applications requiring enhanced corrosion resistance or specific environmental performance. |
| Customer Identification | Customer-specific labels, markings and part numbers can be incorporated into production. |
Prototype Evaluation and Replacement Projects
Many OEM projects begin with prototype quantities to validate movement, locking behaviour and user ergonomics before entering serial production. Prototype testing provides valuable feedback that can be used to refine the design and optimise the final product.
We also support replacement projects where an existing locking gas spring is no longer available or no longer meets the application’s performance requirements. By evaluating the complete mechanism instead of simply copying an existing part, we can often recommend an improved solution that better matches the current operating conditions.
From Prototype to Serial Production
Whether your project requires a small batch of prototypes or high-volume OEM manufacturing, Newtone supports every stage of the product lifecycle. Our engineering team works closely with customers throughout development, helping ensure consistent product quality from initial concept through to serial production.
By combining application-focused engineering with reliable manufacturing, we help OEM manufacturers integrate locking gas springs that provide smooth adjustment, dependable position locking and long-term operational reliability.
Frequently Asked Questions About Locking Gas Springs
What is a locking gas spring?
A locking gas spring is a gas-filled motion control device that combines lifting assistance with an integrated locking mechanism. Unlike a standard gas spring, it allows the piston rod to be locked at the desired position, enabling the supported component to remain securely in place until the release system is activated.
What is the difference between a locking gas spring and a standard gas spring?
A standard gas spring provides lifting assistance but normally cannot hold a load at an intermediate position. A locking gas spring performs the same lifting function while also allowing the load to be securely positioned and held anywhere along the stroke, depending on the design of the locking mechanism.
Are locking gas springs and lockable gas springs the same product?
Yes. The terms locking gas spring and lockable gas spring are commonly used interchangeably. Depending on regional terminology, they may also be described as locking gas struts, lockable gas struts or locking lift supports. Although the terminology varies, they all refer to gas springs designed to provide controlled positioning together with reliable locking.
How does the locking mechanism work?
The locking mechanism operates through an internal valve system. When the release control is activated, the valve opens and allows the piston rod to move. Releasing the control closes the valve, locking the piston rod at the selected position until it is released again.
What is the difference between rigid locking and elastic locking?
Rigid locking provides minimal movement after the gas spring has been locked, making it suitable for applications requiring maximum positional stability. Elastic locking allows a small amount of movement under load due to the compressibility of the internal gas and is often selected where a degree of flexibility improves comfort or usability.
Can locking gas springs be customised?
Yes. Locking gas springs can be customised in terms of extension force, stroke, overall dimensions, locking characteristics, release system, end fittings and mounting configuration. This allows the product to be engineered specifically for the application’s functional and mechanical requirements.
Which release systems are available?
Depending on the application, locking gas springs can be operated using push buttons, levers, Bowden cable systems or customer-specific release mechanisms. The most appropriate solution depends on how the equipment will be adjusted during normal operation.
Which industries commonly use locking gas springs?
Locking gas springs are widely used in medical equipment, rehabilitation devices, ergonomic office furniture, industrial machinery, laboratory equipment, transportation systems and many OEM products requiring adjustable positioning and secure load holding.
Can an existing locking gas spring be replaced?
Yes. In many cases, an existing locking gas spring can be replaced using a sample, engineering drawing, photographs or dimensional information. Our engineering team evaluates the complete application before recommending a replacement solution to ensure compatibility and reliable performance.
Do locking gas springs require maintenance?
Locking gas springs are sealed components that generally require minimal maintenance. Periodic inspection of the mounting hardware, release mechanism and piston rod is recommended. Keeping the piston rod clean and free from damage helps maintain reliable operation and prolong service life.
Can locking gas springs be manufactured in stainless steel?
Yes. For applications exposed to moisture, chemicals or corrosive environments, locking gas springs can be manufactured using corrosion-resistant stainless steel materials. Material selection should always be based on the operating conditions and environmental requirements of the application.
Does Newtone support prototype and OEM projects?
Yes. We support customers from the earliest stages of product development through to serial production. Whether the requirement involves prototype testing, custom engineering or high-volume OEM manufacturing, our team works closely with customers to develop locking gas spring solutions tailored to each application.
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Let’s Find the Right Locking Gas Spring for Your Application
Every locking gas spring application presents unique engineering requirements. The correct solution depends on far more than extension force alone. Locking characteristics, release mechanism, stroke length, mounting geometry, operating environment and user interaction all influence the overall performance of the system.
Whether you are developing new equipment, improving an existing design or replacing a current locking gas spring, our engineering team is ready to assist. By understanding how your application operates, we can recommend a solution designed specifically for your technical and operational requirements.
You are welcome to share your drawings, CAD models, dimensions, photographs or an existing sample. Based on this information, we can evaluate your application and recommend the most appropriate locking gas spring, lockable gas spring or customised motion control solution for your project.
Need Engineering Assistance?
Contact Newtone Gas Springs to discuss your application, request engineering support or receive a quotation tailored to your project. From prototype development to high-volume OEM production, we are here to help you identify the right motion control solution.
Contact Newtone Gas Springs