Stainless Steel Constant Force Spring for 3M Cable – OEM Manufacturer
Stainless Steel Constant Force Springs for Earthing & Grounding Applications
Introduction
SEME constant force springs are manufactured from anti‑magnetic 301/302 stainless steel, making them an ideal choice for solderless mechanical earthing and grounding applications. These springs provide consistent, reliable pressure without the need for soldering or complex installation tools.


Unlike traditional grounding methods that can loosen over time due to vibration or thermal cycling, constant force springs maintain steady contact pressure – even under load conditions. This ensures long‑term reliability and safety in critical electrical systems.
Typical Grounding Applications
Our stainless steel constant force springs are widely used in the following earthing and grounding scenarios:
Cable screening connections on Medium Voltage (MV) and High Voltage (HV) cables
Lead (Pb) or corrugated aluminium (CAS) sheath earthing
Earthing of steel (SWA) or aluminium (AWA) armour wires at any voltage level

These springs are easily applied by simply rolling them onto the material to be earthed. Once installed, they exert constant pressure against the cable, maintaining a secure electrical connection even under vibration, thermal expansion, or mechanical load.

Why Choose SEME Hardware?
1. Industry Experience
With over 10 years of experience in the spring manufacturing industry, SEME Hardware has built a strong reputation for delivering high‑quality spring solutions worldwide. We understand the technical requirements of grounding systems and design our springs accordingly.

2. Fast Sample Availability
We offer free samples within 5–7 days (if tooling is available). This allows you to test and approve the product before mass production.
3. Quick Delivery
Most orders are shipped within 10 days, helping you stay on track and avoid costly delays.
4. Quality You Can Count On
We combine competitive pricing with great service and top quality. From custom part manufacturing to reliable delivery, we work closely with you to get it right.

5. Friendly Customer Support
Our team replies within 24 hours – and we’re here for you even after the sale.
6. Affordable Pricing
You don’t have to overpay for quality. Our prices are competitive, so you get real value for your investment.
7. Global Experience
We export to North America, Europe, and Australia. Our team understands international quality standards and is ready to support your business.

Ready to Learn More?
If you are looking for a reliable, high‑performance constant force spring for your earthing or grounding application, contact SEME Hardware today.
📧 Email: [email protected]
📞 WhatsApp / WeChat: +86 186 6511 1545
Let’s discuss your requirements and find the right solution for your project.
