Custom Spring Manufacturer
Built to Your Drawings

Name: JIALUN SPRINGS
Address: No. 88 Industrial Road, Dongguan, GD, 523330, CN
Telephone: +86 18680646573

Fast Quote | Reliable Quality | Mass Production Support

Since 1999, JIALUN has manufactured custom springs and wire forms for electronics, luggage, mobility, and industrial hardware — from prototyping to mass production.

Since 1999

Spring Manufacturing Experience

7,000㎡

Production Facility

60+

Manufacturing Equipment

Custom

Engineering Solutions

Reliable

Quality Control

jialun springs Over 25 Years of Engineering Excellence

About JIALUN Springs

Custom Springs & Precision Hardware for Real-World Applications

JIALUN is a custom spring and precision hardware manufacturer based in Dongguan, China. With over 27 years of experience, we support projects from prototype development to stable mass production.

DISCOVER JIALUN

PRODUCTS

OUR SOLUTIONS

Precision Engineered Components

From prototype to mass production, we deliver tailored spring and wire form solutions for every industry.

Compression springs

Spring types: Cylindrical, barrel, conical, hourglass, variable pitch, rectangular

Wire diameter: 0.2 mm to 7mm

End Types: Closed ends, ground ends, closed and ground ends

Materials: Stainless steel, music wire, carbon steel, alloy spring steel, copper wire

Explore compression springs

Extension springs

Spring types: Standard, long-hook, double-loop, side-hook, and custom extension springs

Wire diameter: 0.2 mm to 6 mm

End Types: Machine hooks, extended hooks, side hooks, double loops, and custom hook forms

Materials: Stainless steel, music wire, carbon steel, alloy spring steel, and copper wire

Explore extension springs

Torsion springs

Spring types: Single torsion springs, double torsion springs, hook-end, and custom-leg torsion springs

Wire diameter: 0.2 mm to 6 mm

Configurations: Left-hand and right-hand winding, custom leg angles, leg lengths, and end forms

Materials: Stainless steel, music wire, carbon steel, alloy spring steel, and copper wire

Explore torsion springs

Wire forms

Form types: 2D and 3D wire bending, custom angles, loops, hooks, and special end forms

Wire diameter: 0.2 mm to 6 mm

Features: Flexible forming, stable dimensions, and custom surface finishing

Materials: Stainless steel, music wire, carbon steel, and alloy spring steel

Explore wire forms

Stamped metal parts

Product types: Custom brackets, clips, plates, washers, terminals, and metal fittings

Thickness range: available according to drawing, sample, structural strength, and application requirements

Features: Stable dimensions, clean edges, surface finishing, and batch consistency

Materials: Stainless steel, carbon steel, spring steel, copper, brass, and aluminum

Explore stamped metal parts

Industries We Serve

JIALUN Springs provides custom springs, wire forms, and precision hardware components for smart electronics, luggage hardware, mobility products, robotics, and drone applications. We support rapid sampling, small-batch customization, surface finishing, and stable mass production.

Smart Hardware & Electronics

Luggage Hardware

Robotics & Automation

E-Bikes & Mobility Devices

Drones & UAV Components

Why Choose JIALUN for Custom Springs and Hardware Components?

With 27 years of manufacturing experience, a 7,000㎡ production facility, and experienced technicians, JIALUN supports custom spring, wire form, and precision hardware projects from sample development to stable mass production.

Small-Batch Customization

We support low-volume custom projects, sample trials, and early-stage product development, helping customers test structures and adjust designs before mass production.

jialun extension springs Quality Inspection

Fatigue Life & Durability

We pay close attention to repeated-use performance, spring force stability, and long-term durability, especially for parts used in motion, return, locking, and support mechanisms.

Surface Finishing & Environmental Adaptability

We provide surface finishing options such as zinc plating, nickel plating, electrophoresis, powder coating, and passivation to improve corrosion resistance, appearance, and environmental suitability.

Dedicated Project Support

Each project is supported by dedicated sales, technical, production, and quality-control coordination. We help customers confirm drawings, samples, materials, tolerances, and production requirements more efficiently.

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Fast Sampling & Design Revisions

For standard custom spring projects, samples can usually be prepared within 3–5 working days after drawing confirmation, with international express delivery arranged as needed. Multiple adjustment rounds are supported before mass production.

Stable Mass Production

From experienced machine setup to in-process inspection, we focus on dimensional consistency, stable performance, and reliable batch-to-batch quality.

Technical Insights for Custom Springs and Hardware Components

Explore practical articles on spring design, material selection, surface treatment, fatigue life, and custom manufacturing. Our insights help engineers and buyers make better decisions before sampling and mass production.

View All Insights

What Is a Compression Spring and How Is It Made?

At first glance, a compression spring may appear to be a simple helical component made from a single piece of wire. However, producing a reliable spring involves much more than simply coiling wire. Material selection, spring design, coiling, stress relieving, end grinding, surface treatment, dimensional inspection, and load testing can all affect the final performance of a compression spring. So, what exactly is a compression spring, how does it work, and how is it manufact

Aug 18

Why Do Compression Springs Take a Permanent Set? 6 Common Causes and How to Prevent It

A set of deformed and damaged compression springs Why does a compression spring fail to return to its original free length? Learn how excessive stress, compression stroke, material selection, spring geometry, heat treatment, and operating conditions can cause permanent set. Why Doesn't a Compression Spring Return to Its Original Length? A properly designed compression spring should return close to its original free length after the applied load is removed. In real applicati

Aug 10

Spring Surface Treatment Guide: Zinc Plating, Nickel Plating, Painting and Passivation

Surface treatment is an important part of custom spring and metal hardware manufacturing. It affects not only the appearance of the part, but also corrosion resistance, wear resistance, assembly performance, and long-term service life. For many buyers, the first concern is simple: Will the spring rust?But in real projects, the right surface finish depends on more than rust protection. The material, working environment, product appearance, cost target, salt spray requirement,

Jul 20

How to Specify a Custom Torsion Spring for Hinges, Covers and Small Mechanisms

Torsion springs are widely used in hinges, covers, clips, handles, switches, brackets, furniture hardware, electronic products, and small mechanical assemblies. Unlike compression springs, which mainly work by being compressed, torsion springs work by twisting around their coil axis and generating torque. For custom torsion spring projects, accurate specification is very important. A small misunderstanding in spring direction, leg angle, installation space, or torque requirem