Hangzhou Jiangnan Spring Co., Ltd.
Hangzhou Jiangnan Spring Co., Ltd.

Ultra-thin conductive spring contacts—new stamping product now available, exclusively for energy storage battery modules.

A precision sheet-metal stamping company has launched ultra-thin copper‑nickel‑plated conductive shims, measuring 0.08 to 0.25 mm in thickness, for use in energy‑storage lithium batteries and residential energy‑storage PACK systems.

2026

07-08

Eco-friendly, oil-free, self-lubricating stamped spring‑clip assembly, replacing traditional galvanized hardware.

The company has launched an integrated composite stamping‑spring‑retainer assembly, combining a stamped sheet‑metal base with a stainless‑steel elastic retaining clip and featuring a molybdenum disulfide self‑lubricating coating to deliver rust protection without the need for grease or electroplating.

2026

07-08

Composite-material spring technology has been successfully commercialized, enabling automakers to achieve weight reductions of up to 85% through lightweight design.

The China Composites Industry Association has released industry‑wide technological updates, highlighting the large‑scale deployment of fiber‑reinforced polymer (FRP) and carbon‑fiber reinforced polymer (CFRP) composite springs in vehicle applications. These advanced springs have fundamentally addressed the traditional drawbacks of steel springs—high weight and excessive noise—making them a cornerstone of lightweighting strategies for new‑energy vehicle manufacturers.

2026

07-07

The all-new high-temperature‑resistant, custom‑shaped suspension spring has entered mass production, compatible with heavy trucks and construction machinery.

A domestic manufacturer of elastic components has launched a new generation of high-temperature, fatigue-resistant suspension spring products, featuring dual optimization—both in materials and structure—tailored to the demanding heavy‑load, high‑temperature operating conditions of mining construction machinery and heavy‑duty freight trucks.

2026

07-07

Applications of Constant-Force Springs

Compared with conventional compression or tension springs, this spring delivers exceptionally consistent force and generates nearly linear spring characteristics, ensuring that product performance remains stable despite variations in spring force. Moreover, in narrow, elongated spaces, it can minimize the required footprint, thereby expanding design possibilities for aesthetic appeal.

2023

11-28

Industry expertise

Founded in 1972, long-standing employees Technical expertise

2020

08-27

Quality Control

Inspection equipment inspection images High pass rate requirements, with a strong emphasis on integrity.

2020

08-27

Non-standard customization

Specializing in non-standard custom manufacturing Strong in-house product design capabilities

2020

08-27

Non-standard customization

Specializing in non-standard custom manufacturing Strong in-house product design capabilities

2020

08-27

Spring torque testing machine

2020

08-27

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图片ALT信息： Hangzhou Jiangnan Spring Co., Ltd.
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