An Essential Guide for Engineers in Steel, Foundry, and High-Heat Industries
Operating in the world’s harshest environments, engineers rely on components that deliver precise control and absolute safety—even under relentless heat. Standard mechanical springs often fail in these conditions, risking downtime and costly repairs. That’s why high-temperature gas springs have become essential across high-heat industries.
As a trusted innovator since 1978, Nutberry Ltd leads the way in developing and supplying high-temperature gas springs engineered for performance, reliability, and safety in the toughest settings.
What Makes Gas Springs “High-Temperature”?
Unlike standard gas springs, high-temperature variants are purpose-built to operate continuously at 500°C and beyond—up to 600°C in Nutberry’s most advanced designs.
Key design features include:
- Precision-Formed Metal Bellows for long-term durability, even with severe thermal cycling.
- Advanced Leak Testing on every unit using mass spectrometry ensures zero gas loss.
- No Cooling Mediums Required—eliminating system complexity and reducing maintenance.
Where Are Nutberry High-Temperature Gas Springs Used?
These advanced gas springs are invaluable wherever equipment must withstand extreme temperatures for long periods of time.
They are currently used in the steel process during continuous casting within slide gate mechanism that control the flow of molten steel during this process. They are also used for smaller tundish mechanisms, such as nozzle changers. Gas Springs offer a unique advantage of not losing force at elevated temperatures, providing an even force on refractory plates, and maximum safety due to the springs not failing at the same time.
However, Gas Springs do not need to be limited to this single sector and could also have benefits to consumers in the sectors listed below:
- Glass and Ceramics (kiln doors, automated handling systems).
- Aerospace (engine housings, high-temperature actuators).
- Automotive Testing & Manufacturing (thermal test rigs, exhaust line assemblies).
- Military and Defence Equipment (armoured vehicle systems, weapons platforms).
- Power Generation and Energy (turbine control, boiler mechanisms).
Their robust performance makes them ideal for mission-critical applications—when failure is not an option and safety is paramount.
Why Choose Gas Springs Over Mechanical Springs?
Traditional coil or disc springs degrade quickly under high heat. Nutberry’s high-temperature gas springs offer a stable, robust alternative engineered for demanding industries.
Benefits at a Glance:
- Reliability at Elevated Temperatures: Maintain force above 500°C, without relaxation or creep found in Inconel and other alloy springs.
- Long-Term Value: Guaranteed for a minimum of 500 cycles and engineered to outlast conventional springs.
- Maintenance-Free: No cooling or external media required—simplified systems and improved plant safety.
- Extended Refractory Plate Life: More consistent force means reduced wear and longer component life.
- Fail-Safe Designs: Hybrid and dual-chamber options provide backup force for maximum safety.
Trusted by Industry Leaders
Nutberry springs are relied upon by multinational companies such as Vesuvius, Knoellinger, Ferroser, Deguisa, Puma and IFGL to ensure precision, uptime, and safety. We partner with OEMs and plant engineers for bespoke system designs and offer trial units for on-site validation and testing.
Next-Generation Technology: Hybrid & Balanced Gas Springs
For mission-critical control and redundancy, Nutberry offers:
- Hybrid Gas Springs—internal coil plus gas chamber to limit force changes across temperatures.
- Balanced (Dual-Chamber) Springs—stable force output up to 600°C, with built-in fail-safe operation.
These advanced systems are designed for continuous, reliable performance—for tough environments.
Why Nutberry Ltd?
- Over 40 years of British engineering excellence.
- Products manufactured, assembled, and tested in the UK.
- Personalised design support and on-site validation trials.
- Trusted globally for reliability and longevity.
Explore Nutberry’s full range of high-temperature gas springs and discover how proven engineering keeps your critical operations running safer, longer, and with maximum efficiency.
