Extra Heavy Duty Die Springs
Extra Heavy Duty Die Springs are high-strength compression springs designed for heavy-load dies, molds, and industrial machinery, offering excellent durability, stable force, and long service life.
Extra Heavy Duty Die Springs from Raleigh Spring Technology Co., Ltd. are engineered for demanding industrial applications that require extremely high load capacity, long service life, and reliable performance in limited installation spaces. Designed as heavy-duty compression springs, these die springs are widely used in stamping dies, injection molds, press tools, forming equipment, and automated manufacturing systems where consistent force and durability are essential.
Manufactured from premium spring steel and produced under strict quality control, Extra Heavy Duty Die Springs deliver stable spring rates, excellent fatigue resistance, and outstanding dimensional accuracy for continuous production environments.
Product Features
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High load-bearing capacity for heavy-duty industrial applications
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Designed for confined installation spaces without sacrificing performance
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Excellent resistance to fatigue, deformation, and repeated compression
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Stable spring force throughout the working stroke
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Precision manufacturing ensures consistent dimensions and reliable operation
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Long service life helps reduce maintenance and replacement costs
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Suitable for high-speed production equipment and continuous-duty operations
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Available in a wide range of diameters and free lengths to meet different design requirements
Product Advantages
High Strength Performance
Extra Heavy Duty Die Springs are specifically developed for applications requiring maximum compression force. Their optimized spring design allows them to withstand high mechanical loads while maintaining reliable elasticity.
Excellent Fatigue Life
Produced using high-quality spring materials and advanced heat treatment processes, these springs provide outstanding resistance to cyclic loading, making them ideal for long-term industrial use.
Reliable Dimensional Accuracy
Every spring is manufactured with precise tolerances to ensure proper installation and consistent performance across different production batches.
Wide Selection of Sizes
A comprehensive range of specifications allows engineers to select the ideal spring according to load requirements, installation space, and operating stroke.
Typical Applications
Extra Heavy Duty Die Springs are widely used in:
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Metal stamping dies
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Progressive die systems
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Injection molding machines
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Punch presses
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Forming dies
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Tool and die manufacturing
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Automotive production equipment
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Industrial automation machinery
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Heavy mechanical equipment
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Assembly fixtures
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Manufacturing production lines
Material
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Premium alloy spring steel
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Heat-treated for enhanced mechanical strength
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High fatigue-resistant spring wire
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Surface finished for improved durability and corrosion resistance
Technical Specifications
| Item | Description |
|---|---|
| Product Name | Extra Heavy Duty Die Springs |
| Spring Type | Heavy Duty Compression Spring |
| Material | High-strength Alloy Spring Steel |
| Load Capacity | Extra Heavy Duty |
| Working Stroke | 17%, 20%, 25% Compression |
| Spring Rate | Multiple Options |
| Outside Diameter (Dh) | 10 mm – 63 mm |
| Inside Diameter (Dd) | According to model |
| Free Length (Lo) | 25 mm – 305 mm |
| Surface | Industrial Protective Finish |
| Standard Models | RSB Series |
| Custom Service | Available |
Available Models
The RSB Series covers a complete range of industrial sizes, including but not limited to:
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RSB10 Series
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RSB12.5 Series
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RSB16 Series
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RSB20 Series
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RSB25 Series
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RSB32 Series
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RSB40 Series
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RSB50 Series
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RSB63 Series
Available free lengths range from 25 mm to 305 mm, providing flexible options for various mold and machinery designs.
Performance Characteristics
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High elastic recovery
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Consistent spring force output
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Low permanent deformation
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Excellent wear resistance
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Stable operation under repeated compression
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Suitable for high-frequency working conditions
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Optimized for heavy industrial equipment
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Reliable performance under demanding production environments
Quality Assurance
Raleigh Spring Technology Co., Ltd. follows strict manufacturing and inspection procedures to ensure every Extra Heavy Duty Die Springs product meets industrial quality requirements. Each spring undergoes dimensional inspection and performance testing before delivery to provide dependable performance and long operational life.
Packaging
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Individual protective packaging
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Bulk industrial packaging
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Moisture-resistant export cartons
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Customized packaging available upon request
Why Choose Extra Heavy Duty Die Springs
Selecting Extra Heavy Duty Die Springs means choosing reliable compression performance for demanding industrial applications. With high-strength materials, precision manufacturing, multiple size options, and exceptional fatigue resistance, these springs help improve equipment efficiency, extend service life, and reduce maintenance downtime.
Whether used in stamping dies, mold manufacturing, press equipment, or automated production systems, Extra Heavy Duty Die Springs provide dependable performance for heavy-load applications. Raleigh Spring Technology Co., Ltd. also offers professional OEM and customized manufacturing services to satisfy specific engineering and industrial requirements.






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