Jarret Springs vs NitroSprings

NITROSPRINGS VS JARRET CYLINDERS

What is a Jarret Cylinder

A Jarret cylinder, often referred to as a silicone putty cylinder or jelly cylinder, functions similarly to that of a spring or shock absorber. With its energy storing properties, a high-pressure silicone compound provides the Jarret with the necessary force to operate.   
 
Jarret cylinders are used in steel rolling mills and act as work roll separation cylinders. The silicone compound springs support the weight of the top work roll and chock assembly. Metrol offer a NitroSpring alternative that requires no modification to the chocks. Metrol NitroSprings provide unrivalled performance in not only the steel mill industry, but in many other applications. 

Superior Capabilities of NitroSprings

Safer alternative

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. 

Cost-effective solution

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. 

A longer lifespan

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.

Jarret compatibility 

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. 

Robust construction

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).

In-house servicing

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. 

Quicker lead times / reduced inventory

We design and manufacture all NitroSprings in-house with rapid turnaround times, reducing the need for you to carry such large, expensive cylinder inventories.

Upgrading to a NitroSpring

Replacing your Jarret cylinder

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.

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Frequently Asked Questions

Is there an alternative to Jarret cylinders? 

Yes, our NitroSprings have been designed to replace a variety of spring solutions, including Jarret cylinders.   

How do I replace a Jarret cylinder with a NitroSpring? 

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. 

Can you replicate the same force as a Jarret cylinder in a NitroSpring? 

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.

Will I need to modify my equipment to change from Jarret cylinders to NitroSprings? 

No, NitroSprings specifically meet the exact needs of your application, meaning no modification is required and installation is straight forward.

The Jarret cylinders work in a hydraulic fluid or hydraulic cylinder, is a NitroSpring alternative suitable for this? 

Yes, NitroSprings can have added features, such as a special set of advanced seals, allowing them to work reliably in pressurised hydraulic fluid.

Jarret cylinders are used in Steel Mills, as an alternative, can NitroSpring gas springs be used in steel mills? 

Our NitroSprings have been manufactured to withstand working in both hot and cold rolling mills. Our unique designs deliver long-lasting performance like no other.

What is the delivery time for a NitroSpring Jarret cylinder replacement? 

Generally, our NitroSpring manufacturing lead time is between 8 to 12 weeks. However, we also cover blanket orders and call offs to minimise lead times and capital outlay. 

Can I rebuild a NitroSpring steel mill cylinder? 

NitroSpring steel mill cylinders can be overhauled in your facility or at our Northampton facility. We can send out trained professionals to carry out this service; alternatively, we also offer certified training for your staff. Metrol’s unique and advanced design allows the spring to undergo a simple rebuild, with minimum time and effort needed, guaranteeing a full life product after the service.

More than a Replacement

NitroSprings: the superior alternative

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. 

Metrol Springs Case Studies

Agricultural

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