Benefits of Spiral Torsion Springs
A spiral torsion spring offers numerous benefits, but its design is the key factor that makes it so effective across many applications. These springs are relatively small and flat, making them the ultimate space savers. While manufacturing the spring, a concentric spiral forms. This spiral allows the spiral torsion to be compact and creates a […]
John Evans’ Sons Visit MCIU
Celebrating Student Contributions On July 23, 2024, Sam Davey Co-President of John Evans’ Sons, Incorporated visited Montgomery County Intermediate Unit (MCIU) with the John Evans’ team. They took this opportunity to express their gratitude to the students for their dedicated work and discuss the impact of their contributions. John Evans’ Sons, a leading manufacturer recognized […]
Custom Springs for Fire Dampers
Custom Springs for Fire Dampers Fire dampers need durable, dependable spring components to function effectively. Our springs ensure fire dampers operate efficiently where smoke and fire can rapidly escalate dangers, playing a critical role in saving lives. We offer high-quality, precise spring solutions for duct, HVAC, and automatic fire dampers, meeting the demands of these […]
Benefits of Working with a Custom Spring Manufacturer
For engineers designing new products, procuring specialized components for the device remains a consistent hurdle. Numerous industries, from automotive and aerospace to medical and construction, need custom-made springs for specialized applications. Stock springs can be ideal for short-turn-around times, but they aren’t made to suit your device’s specifications. To this end, a custom spring manufacturer […]
Spring Materials: Which is Best for Your Application?
Springs are manufactured with different materials and finishes based on factors such as application, project requirements, and operating environments. Spring quality is crucial, and material or finish can have an impact on performance. With so many materials on the market, here is what you need to know about choosing the best spring materials for your […]
Constant Force Springs Mounting Methods
When you think of a spring, what first comes to mind is probably a helically wound spring consisting of a coiled wire of a given diameter. Constant force springs look a little different in that they typically consist of flat metal strips that have been pre-tensioned. Manufacturers can coil constant force springs with the same […]
John Evans’ Sons’ Design Goes To Mars!
NASA LAUNCHES MARS 2020 PERSEVERANCE ROVER JULY 30 Our Engineering Dept. & Sales Dept. have worked with NASA’s Jet Propulsion Laboratory since September 2018 on this design. The springs were created in our Constant Force Dept. Perseverance will cruise through space for nearly seven months, aiming to land in Mars’s Jezero crater on February 18, 2021. Physical facts: 2,260 […]
Reducing Vibration with Helical Vibration Isolators
Shock and vibration are common challenges for mechanical and electronic equipment. Conditions like loose components, misaligned shafts, device wear and tear, abrupt machine starts and stops, and imbalance created by heavy loads can cause vibration. Let’s not forget about external factors that can cause vibration, like explosive blasts or extreme weather. Even the smallest shock […]
Exploring Constant Force Spring Benefits for Your Application
Crucial Components Selecting the right mechanical components for your application is crucial. Among the various options available, constant force springs stand out for their unique properties, versatility, and benefits. They are a type of extension spring that does not obey Hooke’s law, maintaining a constant force even when deflected. Let’s delve into the advantages of […]
Spring Types and Common Applications
Since 1850, John Evans’ Sons has manufactured springs for many unique devices and applications. We’ve manufactured suspension components for the Mars Rover Curiosity, counterbalancing mechanisms for M1A1 Abrams Tanks, and more. It’s common for us to manufacture a custom spring assembly for our clients’ proprietary devices, but we also have a selection of stock springs that […]