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Our NitroSprings are designed with a pressure release valve, allowing for safe degassing and recharging to be easily carried out in the field. The Jarret cylinders do not have this feature, a compressed piston rod stuck in position can be a severe safety issue.
NitroSprings are designed to be durable, even in the most challenging applications, they provide maximum life. The ability to fully rebuild in the field further increases the value for money and proves the cost effective solution.
Our specialist sealing and advanced rod wipers technology, along with extensive testing to ensure the product can perform 1 million cycles repeatedly, means NitroSprings are durable in the demanding environments, such as steel mills.
NitroSprings are designed to be fully compatible with the Jarret cylinders as a superior replacement. All critical dimensions and features are replicated, requiring no adjustment or modification to exchange Jarrets for NitroSprings.
Our exhaustive research and development testing has provided us with the knowledge required to design a product that is resistant to critical damage, including the piston rod bending and getting stuck (a common and dangerous pain point).
Your NitroSpring has been designed so they can be fully rebuilt. A simple method of replacing all critical components guarantees the success of the rebuild. This system has also been developed for in-field servicing by the customer.
We design and manufacture all NitroSprings in-house with rapid turnaround times, reducing the need for you to carry such large, expensive cylinder inventories.


We’ve made replacing your Jarret cylinder with a NitroSpring as easy as possible. Simply fill out our NitroSpring enquiry form or provide us with a drawing of your current Jarret cylinder. With this information, we will begin working on a proposal including a drawing, quotation, and lead time.
Yes, our NitroSprings have been designed to replace a variety of spring solutions, including Jarret cylinders.
For our team to begin designing a NitroSpring replacement, simply complete the enquiry form with the required information, or send us a drawing of your current Jarret cylinder.
Yes, not only are our NitroSprings designed to have the same force and force curves as a Jarret cylinder, but they are flexible due to their degassing and recharging abilities.
Metrol’s NitroSprings are a superior replacement, offering customisation and field overhaul capability.
They are more cost-effective, with quicker lead times and a longer operational lifespan.
Advanced sealing technology, precision adjustment, and rod wiper systems ensure reliable performance.
NitroSprings are safer, durable, and compatible with hydraulic systems, with no equipment changes needed.
Installation is simple, with full design, delivery, and maintenance support provided.