Product Specification

Extension Springs – Durable Steel, High Tensile Strength, Custom Sizes, Corrosion-Resistant

Product Description

Our Extension Springs are meticulously designed and precision-engineered metal components that deliver reliable tension, superior elasticity, and consistent performance across a broad spectrum of industrial and commercial applications. Constructed from high-quality durable steel, these springs provide exceptional tensile strength and resilience, ensuring long-lasting durability even under continuous stretching, repeated use, and heavy load conditions.

Each spring undergoes rigorous manufacturing processes, including precision coiling, tension calibration, and quality inspection, to guarantee uniform performance and strict adherence to specifications. The result is a product that maintains dimensional accuracy, consistent load-bearing capacity, and optimal mechanical performance throughout its service life.

Our extension springs are available in customizable lengths, wire diameters, coil diameters, and end types, allowing you to select the exact configuration for your unique requirements. Additionally, the corrosion-resistant coatings—including zinc plating, black oxide, and electroplating—ensure exceptional durability in harsh environments, protecting the springs from rust, oxidation, and wear.

These versatile springs are ideal for a wide variety of industries and applications, including:

• Automotive – throttle return springs, brake systems, suspension assemblies, and door mechanisms

• Electronics – connectors, switches, and precision mechanical components

• Industrial Machinery – tensioning mechanisms, load-bearing assemblies, and mechanical equipment

• Home Appliances – washing machines, refrigerators, and other household devices

• Medical Devices – instruments and equipment requiring precise tension control

Whether you require small-scale prototypes for testing and development or large-volume OEM production for mass deployment, our extension springs provide consistent quality, precise specifications, and reliable performance tailored to your project needs.

With a commitment to engineering excellence, quality assurance, and customer satisfaction, our extension springs deliver safe, dependable, and high-performing solutions for your mechanical and industrial applications.

Features

• Durable Steel Material – High-quality stainless steel, carbon steel, or alloy steel for long-lasting strength

• High Tensile Strength – Supports heavy loads and repeated stretching without deformation

• Custom Sizes Available – Tailored to your specific length, wire diameter, and load requirements

• Corrosion-Resistant Coating – Zinc-plated, black oxide, or electroplated options for extended service life

• Precise Manufacturing – Tight tolerances ensure consistent performance in all applications

• Versatile Applications – Suitable for automotive, electronics, industrial machinery, and more

Technical Parameters

Applications

Our extension springs are widely used in various industries due to their versatility and reliability:

• Automotive: Suspension systems, brakes, throttle return, door mechanisms

• Electronics: Switches, connectors, and precision mechanical components

• Industrial Machinery: Load-bearing, tensioning, and mechanical assembly applications

• Home Appliances: Washing machines, refrigerators, and other household devices

• Medical Devices: Instruments and devices requiring precise tension control

These springs are ideal wherever reliable tension, durability, and stability are required.

Customization

We offer full customization services to meet your exact requirements:

• Custom length, wire diameter, and coil diameter

• Special hook or loop end designs

• Various surface treatments for corrosion resistance

• OEM and bulk production options for large-scale projects

No matter your application, we can engineer extension springs that perfectly match your mechanical and industrial needs.

Support and Services

At METS Industry, we provide full support and services for our extension springs:

• Technical Consultation – Guidance on selecting the right spring for your application

• Engineering Support – Assistance in custom design and prototype development

• Quality Assurance – Rigorous inspection and testing for consistent performance

• After-Sales Service – Ongoing support for orders, replacements, and troubleshooting

Packing and Shipping

• Packing: Each spring is carefully packaged in protective materials to avoid damage during transport. Bulk orders are packed in cartons, crates, or pallets.

• Shipping Options: We offer air, sea, and express shipping worldwide, ensuring fast and reliable delivery.

• Labeling: Custom labeling available for OEM or branding purposes.

FAQ

Q1: Can I order custom sizes for extension springs?
A: Yes, we offer fully customizable springs according to your length, wire diameter, coil diameter, and end design requirements.

Q2: What materials are available for extension springs?
A: Stainless steel, carbon steel, and alloy steel are available. We also provide various coatings for corrosion resistance.

Q3: What industries use your extension springs?
A: Automotive, electronics, industrial machinery, home appliances, and medical devices.

Q4: Do you provide OEM or bulk orders?
A: Yes, we can handle both small-scale prototyping and large-volume OEM orders.

Q5: What is the typical lead time for production?
A: Lead time depends on quantity and customization, generally 2–6 weeks for standard orders.