Your Professional Flat Springs Supplier
Zhuji Xuanyu Spring Co., Ltd. (formerly Zhuji Printing Machine Spring Factory) is a high-quality spring manufacturer with 28 years of professional experience, recognized as a pioneer and leader in China’s printing press and die-cutting machine industries. We are consistently dedicated to providing exceptional spring solutions for our clients.
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![Stainless Steel Flat Springs]()
Stainless Steel Flat SpringsXuanyu Springs is a professional provider of stainless steel leaf spring solutions. We specialize in using high-performance stainless steel strips such as 301, 304, and 316 as raw materials, and -
![Spring Steel Flat Springs]()
Spring Steel Flat SpringsSpring steel flat springs are flat elastic elements made from high-quality spring steel strips through precision stamping, heat treatment, and forming processes,used for cushioning, resetting, energy -
![Beryllium Copper Flat Springs]()
Beryllium Copper Flat SpringsXuanyu Springs is a professional provider of precision beryllium copper sheet spring solutions. We focus on designing and manufacturing key components that combine excellent elasticity, conductivity, -
![Spiral Springs]()
Spiral SpringsXuanyu Springs is a professional provider of spiral spring (also known as helical torsion spring or power spring) solutions. A spiral spring is a mechanical component made by precisely winding a long -
![Die Cutter Gripper Springs]()
Die Cutter Gripper SpringsThe die-cutting machine tooth spring is the most core elastic component that enables the gripper bar/tip to achieve precise and stable gripping function.
Why choose us
Quality Control
We maintain a strict internal inspection process. Each batch of products undergoes multiple tests, including accuracy, pressure resistance, and service life. Key inspection data can be provided upon request.
Logistics Solutions
With extensive export experience, we can arrange sea freight or international express delivery (DHL, FedEx, etc.) and offer trade terms such as FOB Ningbo/Shanghai to ensure safe and efficient delivery.
Sales Market
We have established stable supply partnerships in Southeast Asia, Europe, North America, and the Middle East, and we have served customers from countries such as Germany, Japan, the United States, and India for many years.
Our Service
From order placement to shipment, we maintain close communication. You can track order progress at any time, and we can provide photos or videos of key production stages upon request, allowing you to monitor quality remotely.
Flat springs are essential mechanical components that store and release energy through elastic deformation. Unlike coil springs that operate through torsional stress, flat springs work primarily through bending stress, making them ideal for applications requiring precise force delivery in compact spaces. These versatile components are manufactured from flat strips of spring steel and can be formed into various configurations to meet specific engineering requirements.
Made of flat strip steel, flat springs are ideally suited for applications where space is limited or where the spring can be used as part of a mounting assembly. The flat spring design allows forming of specific features and profiles for unique applications and mounting locations, making them incredibly versatile for custom solutions.
Key Characteristics
Shape and Design
Flat springs come in various shapes, including rectangular strips, curved shapes, or custom profiles. They are often cut or stamped from flat sheets of metal, providing a tailored fit for specific applications.
Material
Flat springs are typically made from high-quality materials like stainless steel, high-carbon steel, beryllium copper, and other alloys. These materials ensure durability, resistance to fatigue, and the ability to maintain their shape under repeated stress.
Load and Deflection
The load capacity and deflection of flat springs depend on their material, thickness, width, and overall design. They are engineered to provide precise force and movement control in various applications.
There are various types of flat springs
Cantilever Springs
Beam Springs
Finger Springs
Formed sheet metal springs
Manufacturing Capabilities
Strip Width: Up to 3" (76.20 mm).
Strip Thickness: 0.003 to 0.125" (0.08 mm – 3.18 mm).
Advanced quality control systems.
CAD-assisted product and tooling design.
Wire EDM for precision tooling.
Process validation including first articles and PPAP's.
Spring steel remains the most common material for flat springs due to its excellent elastic properties and fatigue resistance. Commonly used materials include:
Carbon steel - Good strength and durability for general applications
Stainless steel - Corrosion resistance for marine, food processing, and medical applications (300 Series and 301 Series available).
Spring steel alloys - Enhanced performance in demanding environments (51CrV4/AISI 6150).
Brass and copper - Electrical conductivity applications.
Phosphor bronze - Electrical contacts and corrosion resistance.
Beryllium copper - High strength with electrical conductivity.
Various nickel alloys - Extreme temperature and specialized environments.
Customization Options
Material
Selection of various materials based on application requirements, including carbon steel, stainless steel, alloys, and more.
Dimensions
Custom sizing and shaping to fit specific space constraints and geometrical requirements.
Thickness
Variation in thickness to achieve desired spring characteristics and deflection properties.
Width
Adjustment of the width of the flat wire to accommodate different load requirements and structural needs.
Coil Configuration
Customization of coil configuration, including helical, coiled helical, or volute spiral, to meet specific performance criteria.
Surface Finish
Selection of surface finishes such as black oxide or coatings for corrosion resistance and aesthetic purposes.
End Configurations
Customization of end configurations for mounting or attachment to other components within the system.
Tolerance
Precision customization of tolerances to ensure consistent performance and compatibility with mating parts.
Heat Treatment
Tailoring heat treatment processes to optimize spring properties such as hardness, flexibility, and fatigue resistance.
Custom Features
Incorporation of unique features such as bends, twists, or secondary operations to fulfill specific application requirements.
Certificates
FAQ
As one of the most professional flat springs manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale bulk customized flat springs made in China here from our factory. Contact us for more details.
Stainless Steel Flat Springs, Stainless Steel Spiral Springs, Gripping Gripper Springs for Die Cutters
