Precision Coil Leveling for EV Battery-Shell Stamping

Table of Contents

2026 Engineering Scope and Acceptance

This page covers EV battery-shell stamping; treat flatness and surface quality as project acceptance criteria, not guaranteed outcomes.

Confirm the material grade/alloy, strength or temper, thickness-width window, incoming defect, surface, line duty and measurement method. No flatness, speed, capacity, roll setting or residual-stress result is universal unless it is tied to a specific model and verified sample.

At Henli Machinery, our coil levelers undergo rigorous assembly inspections and operational testing to support exceptional performance. Designed for high-precision applications like new energy vehicle (NEV) battery shell stamping, these machines ensure defect-free metal flatness, critical for manufacturing durable, lightweight battery enclosures.

Why Our Coil Levelers Excel in NEV Battery Shell Production
Battery shells require ultra-flat, reduced-marking-risk aluminum or steel sheets to meet strict safety and structural standards. Our coil levelers eliminate material warping, edge waves, and surface imperfections through unmatched technical precision:

1. Assembly Quality Control

Roller Alignment: ≤0.05mm gap between leveling rollers and support rollers.
Parallelism: ≤0.035mm/m tolerance across upper/lower roller surfaces.
Frame Consistency: ≤0.05mm horizontal deviation in left/right frames.
Aesthetic Integrity: Smooth powder-coated finishes (JB/T5000.12 compliant) with zero scratches.

2. Zero-Compromise Testing Protocols

12-Hour Dry Run: 3,000+ reversals verify gear stability (noise ≤85dB) and bearing reliability (temperature rise ≤45°C).
Synchronized Adjustments: Four press-down screws achieve ±0.01mm parallelism for uniform thickness.
Tilt Compensation: Swing mechanisms correct material deviations in real-time during high-speed stamping.

3. Load Testing (Upon Request)
Simulates NEV battery shell production using 0.5–2.0mm aluminum alloys. Post-leveling flatness meets GB/T 30794-2014 standards (wave height ≤1.5mm/m), ensuring seamless stamping without surface damage.

Tailored for Battery Shell Manufacturing
NEV battery enclosures demand millimeter-defined flatness to prevent electrolyte leaks and structural failures. Our levelers’ micro-adjustable rollers and tilt-correction systems resolve even subtle material defects, directly enhancing production yield and stamping press efficiency.

Certified Reliability
Every machine includes:

48-hour factory acceptance testing (FAT) documentation.
Customizable packaging for overseas shipping.
CE/GOST certifications (available upon request).

Technical Support
Need a coil leveler optimized for NEV battery shell stamping? Contact Henli Machinery for a free feasibility analysis of your material specs (thickness: 0.3–6.0mm, width: ≤2,000mm).

→ Explore our coil leveler series: https://www.henli-machine.com/portfolio_category/coil-leveler/