Battery spring sheet

Core Stamping Process & Product Advantages

• Advanced Stamping Equipment: Equipped with 50+ CNC precision stamping machines (60–800 tons), specialized in micro-precision stamping for battery spring sheets. The automated production lines ensure consistent forming of complex spring structures, with tight tolerance control (±0.02–0.1mm) to meet precise assembly needs of small-sized battery compartments.

• High-Performance Material Selection: Adopt conductive-grade materials (C11000 copper alloy, 304 stainless steel, phosphor bronze) optimized for battery spring applications. All materials are sourced from certified suppliers (e.g., Jiangxi Copper, Baoshan Iron & Steel) with complete material traceability certificates, ensuring excellent electrical conductivity (≥98% IACS for copper alloy) and elastic fatigue resistance.

• Compliant Surface Treatment: Optional tin plating, silver plating, or nickel plating—all RoHS/REACH compliant. Plating thickness (0.5–3μm) is strictly controlled, enhancing corrosion resistance and reducing contact resistance, ensuring stable current transmission for battery devices.

• Rigorous Performance Testing: All spring sheets undergo fatigue life testing (≥10,000 cycles), elastic force testing (0.5–30N), and salt spray testing (≥72 hours). Equipped with CMM measuring machines and conductivity testers to ensure 100% compliance with product specifications.

Key Technical Parameters

Our Core Competitiveness

• Professional Technical Team: A number of senior engineers with 10+ years of battery component stamping experience, providing 24-hour technical support for design optimization, die development (7–12 workdays), and performance tuning.

• Strong Production Capacity: 50+ high-tonnage CNC precision stamping machines (60–800 tons) + automated feeding & testing lines, ensuring 98%+ on-time delivery rate even for large-batch orders (8 million pcs/month).

• Strict Quality Management System: Full-process inspection covering raw material composition testing, in-process dimension monitoring, and final performance verification (elastic force, fatigue life). 99.8% product qualification rate, supported by professional testing equipment (CMM, salt spray tester).

• Integrated Supply Chain: Long-term cooperation with top material suppliers (Jiangxi Copper, 304 stainless steel manufacturers) for stable, high-quality raw material supply; cost advantage with no middlemen.

• Global Shipping Support: Professional international trade team proficient in FOB/CIF terms, partnering with DHL/FedEx/Maersk for worldwide delivery. Efficiently handle customs clearance documents (commercial invoice, certificate of origin, certification reports).

• Reliable Quality Assurance: 1-year warranty for all battery spring sheets; free replacement/refund for production-related quality issues; 24-hour after-sales response to solve client problems.

Proven Successful Cases

• Consumer Electronics (South Korean Client): Customized copper alloy battery spring sheets for smartphone batteries. Requirements: Tolerance ±0.03mm, conductivity ≥98% IACS, RoHS compliant. Solution: Adopted 120-ton CNC stamping machine + silver plating treatment, matched with automated dimension inspection. Outcome: Monthly supply 500,000pcs, 0 defect feedback for 2 consecutive years; became the client’s exclusive battery spring supplier.

• Automotive Electronics (German Client): Developed 304 stainless steel battery spring sheets for on-board sensor batteries. Requirements: Fatigue life ≥50,000 cycles, high temperature resistance (-40℃~85℃), ISO/TS 16949 compliant. Solution: Optimized stamping process + passivation treatment, strict high-temperature and fatigue testing. Outcome: Annual order volume 1.2 million pieces; product passed automotive industry certification, supporting the client’s new energy vehicle project.

• Medical Equipment (US Client): Produced precision battery spring sheets for portable medical devices. Requirements: Low contact resistance, 72-hour salt spray resistance, UL certified. Solution: Selected high-purity copper alloy + tin plating, adopted micro-precision stamping. Outcome: On-time delivery rate 100% for 3 years; product passed UL inspection, helping the client enter the US medical device market smoothly.

Applicable Industries & Credibility Highlights

Our battery spring sheets are widely applied in consumer electronics (smartphones, tablets, remote controls), automotive electronics (on-board batteries, sensors), medical devices (portable monitors, insulin pumps), industrial instruments, and power banks. We have served clients in 40+ countries (Europe, North America, Asia, Middle East) and hold complete certifications for global market access. All raw materials come with material certificates; we can provide third-party test reports (SGS, TUV) upon request. Our production workshop meets ISO 9001:2015 standards, with transparent production processes available for client factory audits.

Send your drawings or detailed requirements now! We will provide a personalized quote, technical solution, and sample plan within 24 hours. Partner with a trusted battery spring sheet stamping expert for high-quality, cost-effective components!