English 
| Quantity: | |
|---|---|
Precision helical spring
Product Overview
Spiral springs are the most widely used elastic foundation components in the industrial sector, enabling the storage and release of force through the elastic deformation of their helical structure. Sunzo Precision's spiral spring product line encompasses three main categories—compression springs, tension springs, and torsion springs—utilizing high-precision forming processes and rigorous quality control measures. These springs are characterized by precise elasticity, long service life, and strong adaptability to various operating conditions, making them suitable for meeting all types of elastic requirement scenarios, ranging from microelectronics to heavy-duty equipment.
Core Advantage
• Micron-level precision: Manufactured using imported precision CNC spring production equipment; wire diameter range: 0.03 mm – 25 mm; dimensional accuracy: ±0.01 mm; load tolerance: within ±5%
• Long fatigue life: Utilizes high-quality spring steel, stainless steel, and alloy materials; incorporates standardized heat treatment and surface strengthening processes; delivers stable performance even after millions of fatigue cycles.
• Comprehensive material selection: Foundation-grade spring steel, corrosion-resistant stainless steel, and high-end nickel-based alloys – suitable for applications spanning conventional industrial to extreme aerospace environments.
• Material source control: Implement rigorous incoming material inspection (IQC), select steel with high purity, and control fatigue performance and batch stability at the source.
• Fast customization capability: Supports full-range customization including compression, stretching, torsion, and custom-shaped designs; standard samples are delivered within 3–7 days; offers rapid prototyping and reliable mass production.
Application Area
Typical application site | Core Functions and Roles | |
industrial automation | Cylinder, solenoid valve, robotic arm gripping mechanism | Provides reset elastic force and buffering force to ensure precise and smooth mechanism operation. |
automobile making | Brake system return function, valve springs, seat adjustment mechanism | Enables precise component reset, withstands alternating loads, and ensures crane safety. |
Valves and Pumps | Safety valve, pressure reducing valve, hydraulic pump valve spool | Controls the opening and closing pressure of the valve, provides a stable reset force, and ensures stable medium pressure. |
Energy and Power | Wind power vibration damping systems, nuclear power valve systems, energy storage and buffering mechanisms | Absorbs impact vibrations, provides elastic support, and is suitable for high-and low-temperature operating conditions. |
Compression Spring /Extension Spring
Application Industries | Typical application site | Core Functions and Roles |
construction machinery | Door hinge, grab bucket mechanism, lifting device | Provides tensioning force for automatic component return to original position and withstands alternating tensile loads. |
electric products | Switch puller, connector latch, relay mechanism | Provides stable tension to ensure reliable contact and precise actuation and return positioning. |
agricultural machinery | Sowing mechanism, harvesting device, tension wheel | Designed for challenging outdoor operating conditions, it provides continuous tensile force to ensure the stable operation of the equipment. |
Torsion Spring
Application Industries | Typical application site | Core Functions and Roles |
hardware tool | Pliers, wrench, door lock or hinge | Provides a torsional reduction torque to enable automatic tool deployment and automatic door lock retraction. |
auto parts | Windshield wipers, seat angle adjuster, fuel tank lid hinge | Provides precise torsional elasticity, ensuring smooth flipping and rotating movements of components. |
precision instrument | Test fixtures, optical instruments, switch knobs | Delivers precise, low-torque output to ensure the stable and reliable operation of precision mechanisms. |
Technical Parameter
Compression Spring General Parameters
Parameter Category | Technical Specification Scope | remarks |
Wire diameter | 0.03 mm – 25 mm | Customizable smaller or larger wire diameter |
Spring inner diameter | Customized to meet customer requirements | Outer diameter: the ratio of wire diameter to outer diameter is greater than 4 times but less than 40 times. |
free height | 1.0 mm – 5000 mm | Customizable extra-long specifications |
Load range | 0.1 N – 20000 N | Calculate based on wire diameter, middle diameter, and number of turns. |
Common materials | 65Mn, 60Si2MnA, 50CrVA, 304/316 stainless steel, piano steel wire, Inconel alloy | Supports customisation for special materials |
surface preparation | Blackening, galvanizing, nickel plating, Dacromet plating, powder coating, passivation | Select based on the required corrosion protection level. |
accuracy class | Outer diameter tolerance: ±0.05 mm; Free height tolerance: ±1%; Load tolerance: ±5% | The precision-grade option further enhances accuracy. |
Tension Spring General Parameters
Parameter Category | Technical Specification Scope | remarks |
Wire diameter | 0.08 mm – 20 mm | Customizable special specifications |
free length | 5.0 mm – 800 mm | Hook length |
Initial tension range | 0.05 N – 30000 N | Adjustments based on materials and manufacturing processes |
Hook type (optional) | Round hooks, side hooks, German hooks, British hooks, custom-shaped hooks | Compatible with various installation configurations |
Common materials | Oil quenching line; carbon steel; 304/301/316/631 stainless steel | Supports customisation for special materials |
surface preparation | Galvanizing, blackening, nickel plating, Dakro coating, polishing | Select based on requirements |
Torsion Spring General Parameters
Parameter Category | Technical Specification Scope | remarks |
Wire diameter | 0.08 mm – 16 mm | Customizable special specifications |
Spring inner diameter | Adaptive shaft diameter design | Customized to meet customer requirements |
Twisting angle | Maximum 360° range (single-torsion); customizable multi-turn torsion. | Designed for working stroke |
Torque range | 0.1 N·mm – 2000 N·m | Calculate based on wire diameter and number of turns |
structural style | Single torsion spring, double torsion spring, custom-shaped torsion arm spring | The crank arm angle and length are customizable. |
Common materials | Oil quenching line; carbon steel; 304/301/316/631 stainless steel | Supports customisation for special materials |
surface preparation | Blackening, galvanizing, powder coating, polishing, electrophotography, electro-galvanizing with nickel, zinc-nickel alloy, Dakro | Select based on requirements |
