Guide to Spring Wiring Harness-Kaweei

Definition

Spring Cable is a flexible cable with a spiral winding structure. Through a special process, the conductors or cable cores are arranged in a spiral manner, making them controllable in elasticity and bending resistance. It is mainly used in equipment that needs to be frequently moved, bent or vibrated to provide a stable connection for power transmission and signal control.

Feature

Flexibility: The spiral structure allows the wire to stretch freely

Fatigue resistance: Can withstand up to one million bending cycles

Anti-interference: Optional shielding layer (aluminum foil/braided mesh) design effectively reduces the impact of electromagnetic interference (EMI) on signal transmission ‌ ‌

High reliability: The conductor uses tinned copper or multi-stranded copper wire to reduce resistance and improve conductive stability ‌ ‌

Environmental adaptability: The sheath material is oil-resistant, high temperature-resistant (-40°C to +125°C), and UV-resistant, suitable for industrial and outdoor environments ‌ ‌

Ease of installation: The spiral structure shrinks naturally to avoid cable entanglement and simplify equipment layout and maintenance ‌

Common materials for spring wire harness

Material category

Typical model/type

Core Features

Applicable scenarios

Carbon spring steel

65#、70#、65Mn、82B

Low cost, moderate elasticity, tensile strength of 600-800MPa, but poor corrosion resistance, working temperature ≤ 130 ℃

Ordinary industrial equipment, low load spring wire harness

Alloy spring steel

60Si2Mn、50CrVA、55CrSi

High strength (tensile strength ≥ 1200MPa), high temperature resistance (≤ 250 ℃), excellent fatigue resistance

Automotive suspension, heavy-duty machinery, high temperature environment spring wiring harness

stainless steel

304、316、301

Strong corrosion resistance, non-magnetic, 304 has a temperature resistance of -200~600 ℃, and 316 has better acid and alkali resistance

Medical equipment, food machinery, and wiring harnesses for humid/corrosive environments

Copper based alloy

Phosphor bronze, beryllium bronze

Good conductivity, high elastic modulus of beryllium bronze (up to 140GPa), corrosion resistance but high cost

Precision electronic contacts, conductive spring wiring harness

Application Fields

Industrial scene

Mainly used for industrial control, CNC machine tools, robots, automated production lines, and logistics systems to ensure stable connections during equipment movement.

Diversified needs

It is also applied in automobile manufacturing, medical equipment, electronic instruments, and household products, such as shock absorption, signal transmission, and other scenarios