Powering Flight: Uncompromising Safety for Aerospace Systems
Mastering Superalloys and Titanium. Delivering 100% traceability to meet every challenge at 30,000 feet.
Industry Overview
Defining Aerospace-Grade Precision In the sky, there is no "pull-over lane." Component failure is not an option. At Hershey Spring, we don't just manufacture springs; we manage risk. Facing thermal creep in engines, high-frequency flutter in airframes, and strict strength-to-weight ratios, we have established a rigorous "Aerospace Manufacturing Standard." Starting from raw material sourcing, we utilize precise micro-structural adjustments and surface enhancement processes to transform high-performance metals into the most trusted muscles and joints of the aircraft.
Application Coverage
Propulsion: Fuel metering valve springs, turbine seal ring springs, thrust reverser actuation springs.
Landing Gear: Shock strut springs, brake return springs, locking mechanism springs.
Airframe & Interior: Door latch components, seat adjustment mechanisms, overhead bin gas spring components.
Avionics & Controls: Cockpit instrument switch springs, flight control stick return springs, circuit breaker springs.
Aerospace Solutions & Customization Capabilities
HERSHEY specializes in high-performance aerospace spring solutions, delivering precise customization for lightweight, high-strength, and highly reliable applications. Our capabilities cover material selection, precision manufacturing, mechanical design, and durability optimization for aircraft structures, propulsion systems, navigation devices, and other critical aerospace components.
Industry-Grade Materials
Titanium Alloy）: Exhibits an exceptionally high strength-to-weight ratio, achieving a 40%–50% weight reduction compared to steel springs, while offering complete corrosion resistance.
（17-7 PH Stainless Steel）: A precipitation-hardening stainless steel that combines high strength with excellent corrosion resistance.
Industry-Focused Processes
Utilizing fully automated CNC machinery to ensure extreme consistency in spring index and pitch, meeting aerospace-grade tolerances.
Strict control of surface scratches and tool marks to prevent them from becoming initiation points for fatigue cracks.
Durability & Reliability Enhancements
- Shot Peening
Induces surface compressive residual stress, significantly extending fatigue life and preventing micro-crack propagation.
- Hot Pre-Setting
Performed at elevated temperatures to eliminate initial creep, ensuring springs maintain zero height loss under operating conditions.
Mechanical/Functional Customization Options
- Weight Reduction Design
By utilizing high-stress materials and variable pitch design, material usage is minimized while still meeting load requirements.
- Space Optimization
Providing double load in limited space via multi-layer nesting
(Saving 50% axial space compared to coil springs
Qualification Certification Obtained
FAQ
We implement a 100% material traceability system. Every batch of raw material is registered with a unique Heat Number upon arrival and tracked throughout production. Upon delivery, we provide complete Mill Test Certificates and Certificates of Conformance (COC), ensuring every spring is traceable back to the steel mill.
Absolutely. We manufacture Titanium (Gr.5 / Beta-C) springs. Compared to steel equivalents, our titanium solutions offer a 40%-50% weight reduction. We master the specific coiling and heat treatment parameters for titanium to balance the dual needs of lightweighting and high strength.
For aerospace applications, Shot Peening is a standard process we use to induce compressive residual stress, significantly inhibiting fatigue crack initiation. Additionally, we offer Hot Pre-setting to eliminate initial set, ensuring zero height loss over the component’s entire lifecycle.
Beyond standard dimensional and load reports, our lab is equipped with fatigue testers and salt spray chambers. Upon request, we can provide Fatigue Life Reports and Salt Spray Test Reports (96h+) to validate reliability with real-world data.