Zinc-plated Torsion Springs

Xuanyu Springs provides professional customized solutions for galvanized torsion springs. We specialize in providing torsion springs that combine excellent rust resistance with reliable torque performance for various humid, dusty, or mildly corrosive environments.

A galvanized torsion spring is an elastic element made by applying a zinc coating to the surface of a high-quality carbon steel or alloy steel torsion spring. Its core principle lies in the electrochemical protection of the sacrificial anode, which preferentially corrodes the zinc layer, effectively protecting the internal spring core from rust and significantly extending its service life in harsh environments. It stores and releases angular energy through torsion around its axis, providing a stable restoring torque.

 

Product Parameters

We offer a variety of galvanizing types and specifications to choose from, and can customize all parameters to meet your environmental and performance requirements.

project	Core parameters
Material	Carbon spring steel , such as 65Mn and 70#, provides high elasticity and good economy. Alloy spring steels , such as 60Si2MnA and 50CrVA, have higher strength, elasticity, and resistance to relaxation.
Coating type and appearance	Blue-white zinc (rainbow zinc) : a common color with good corrosion resistance. Colored zinc (yellow zinc) : It has better corrosion resistance and a bright yellow appearance. Black zinc : Offers a dark, matte finish to meet specific aesthetic or anti-glare requirements. White zinc : After passivation with chromate, it appears silvery-white and has a bright appearance.
wire diameter range	0.5mm - 25.0mm , non - standard customization is supported.
Torque and accuracy	Torque values ​​can be precisely designed to suit the application. Standard torque tolerance is ±10%, with higher precision levels available.
Salt spray test standards	Depending on the coating thickness and post-treatment, the test can typically last from 48 hours to over 96 hours (neutral salt spray test), meeting the needs of routine outdoor protection.
Structural design	Torque arm (leg) : Supports various forms such as straight arm, curved arm, and irregular arm, and the length and angle can be flexibly designed.

We not only provide galvanized torsion springs, but also highly reliable solutions based on in-depth process understanding and flexible service models.

1. Deep customization capabilities and rapid response

• Flexible customization of all parameters: We support customization of wire diameter, number of turns, arm length, and direction of rotation according to your assembly space, torque requirements, and operating environment. We offer a variety of coating options, including blue-white zinc, color zinc, black zinc, and white zinc, and can adjust the process according to special anti-corrosion requirements.

• Fast track from concept to prototype: We have an efficient prototyping mechanism that can quickly respond to your design concepts or drawings, shortening the development cycle.

2. Rigorous quality control and consistency assurance

• Dual inspection process: Strict inspections are performed before and after electroplating. Before plating, the mechanical properties of the spring body are ensured to be qualified; after plating, the thickness, uniformity, adhesion, and salt spray test performance are carefully controlled to ensure that the protective effect of each batch of products is stable and reliable.

• Data-driven quality management: Key process parameters and test results are all recorded to ensure traceability of quality and provide you with a stable supply guarantee for bulk orders.

3. Friendly cooperation policy: Prototyping support, fees may be waived.

We encourage and support clients to conduct initial sampling and verification. If the sample is confirmed and a bulk order is placed, the sampling costs can be deducted from subsequent orders. This policy aims to reduce your development risk and foster a long-term, mutually trusting partnership.

Outdoor equipment and garden machinery: Used for resetting the operating handles of lawnmowers and garden tools, door lock mechanisms, etc., to resist rain and dew erosion.

Automotive parts: Used in chassis auxiliary components, non-core adjustment mechanisms in the cabin, and other parts that require certain rust prevention.

Household appliances and hardware furniture: Rotary reset mechanisms used in washing machine door locks, outdoor furniture hinges, storage cabinet locks, etc., which may be exposed to moisture.

Industrial equipment and ventilation systems: suitable for adjusting fan louvers and supporting door struts for equipment maintenance in environments such as factory workshops and underground garages.

General mechanical and electrical cabinets: for various clamps, bolts, and torque reset devices exposed to non-severely corrosive industrial environments.

We offer comprehensive support, from material selection and plating recommendations to performance customization, tailored to your specific application environment, load requirements, and expected service life. Please provide drawings or samples so we can provide you with professional galvanized torsion spring solutions .