Red Copper Sleeve for Automotive Wire Harness

Why Red Copper Matters in Wire Harness Applications?

Zenko is a leading China supplier and manufacturer, we provide you quality Red Copper Sleeve for Automotive Wire Harness, which is often traced back to termination points. When a copper bushing is substandard—too hard, too brittle, or imprecisely dimensioned—the crimp loses integrity, resistance rises, and heat builds up. Zenko's Copper Bushing for Wire Harness is manufactured from T2 purple copper, a material chosen for its optimal balance of ductility, conductivity, and long-term stability.

Zenko’s Red Copper Sleeve for Automotive Wire Harness Beyond crimp applications, these bushings also serve as precision spacers and alignment sleeves in wire harness assembly. Their consistent outer diameter and smooth surface finish ensure that protective sleeves, heat-shrink tubing, and connector housings slide into position without snagging. For wire harness manufacturers producing at scale, this consistency translates directly into fewer assembly-line jams and lower rejection rates.

Engineering the Perfect Termination

Zenko's manufacturing process begins with raw material verification. Every batch of red copper is tested for conductivity, impurity content, and mechanical properties before entering production. CNC precision machining ensures that inner and outer diameters are held to tight tolerances, eliminating the variation that causes intermittent connections in high-vibration environments.

Surface finish is equally critical. A burr or tool mark on the bushing surface can cut into wire strands or puncture insulation. Zenko's post-machining process includes deburring and surface inspection to ensure every bushing is clean and smooth. For applications requiring additional corrosion protection, we offer tin or silver plating options without compromising the base material's conductivity.

Built Around Your Design

No two wire harness designs are identical, and neither are the bushings they require. Zenko's engineering team works directly from your drawings or 3D models to produce copper bushings that fit perfectly into your assembly process.If you want buy Red Copper Sleeve for Automotive Wire Harness made in China, We support rapid prototyping, low-volume trial runs, and high-volume production with equal attention to quality. Our flexible manufacturing system allows us to switch between custom orders quickly, keeping your supply chain agile.

Get in Touch

Ready to improve your wire harness reliability? Contact Zenko today with your drawings or specifications. Our engineering team typically responds within 24 hours with recommendations, samples, and a competitive quotation.

Non-Insulated Butt connector （Sizes can be customized）
							Material:Red Copper(C1220/TP2)
ITEN NO.	Dimension(mm)						Cable Size
	L	D	d1	W	W1	F	mm2	A.W.G
2.75D	8.5	4	1.8	2.75	3.47	4
3.35D	8.5	4.5	2.3	3.35	3.8	4.5
4.05D	8.5	5.2	2.7	4.05	4.45	5.2
4.55D	11	6.65	3.4	4.55	5.45	6
5.6D	11	7	3.6	5.6	6.02	6
3.4D	8.5	4.4	2.1	3.38	3.8	5.2
1.9D	7.2	3	2.5	1.9	2.4	4.5
4.1D	10.5	4.8	2.5	3.98	4.45	5.6
Plating	Tin plating, nickel plating, surface anti-oxidation
Hardness and State	M / Y / Y2 （HV45-75/ 90-110/ 110-130)
Remark:	Accept custom orders of any size