Build-to-Spec Automatic Battery Pack Assembly Lines: OEM/ODM for EV & ESS

Build-to-Spec Automatic Battery Pack Assembly Lines: OEM/ODM for EV & ESS Projects

Shanghai Zonzsin Intelligent Equipment Co., Ltd. (Zonzsin) provides custom-engineered automatic battery pack assembly lines for lithium battery manufacturers, energy storage integrators, and automotive OEMs. Since 2019, Zonzsin has delivered turnkey solutions including CTP (Cell-to-Pack) and MTP (Module-to-Pack) lines, with the flexibility to adapt cycle time, automation level, and line configuration to project-specific requirements. This article explains how Zonzsin’s OEM/ODM capabilities, ISO 9001-certified quality system, and proven field deployments enable buyers to commission a build-to-spec battery pack production line for EV traction or stationary storage applications.

Problem Definition

Procuring a battery pack assembly line that matches exact production requirements—such as cell type (prismatic 314Ah or 587Ah), pack architecture (CTP or MTP), output rate, and integration with existing factory systems—often requires more than a standard catalog product. Buyers in the EV and energy storage sectors need a partner capable of tailoring equipment without sacrificing reliability, delivery schedule, or compliance with international standards.

Industry Background

The global shift toward electric vehicles and large-scale energy storage has driven demand for flexible, high-yield battery pack assembly lines. Technologies like CTP eliminate module-level components, reducing weight and cost, while MTP retains modularity for serviceability. Zonzsin addresses this spectrum by designing lines that can handle both CTP and MTP architectures, accommodating prismatic cells up to 587Ah. With 60% of output exported to SEA and EU markets, the company aligns its engineering practices with international safety and quality expectations.

Detailed Solution: Zonzsin’s Turnkey Customization Approach

Zonzsin offers OEM and ODM production services for automatic battery pack assembly lines. The company’s professional R&D team, consisting of 43 engineers, enables customized solutions through cutting-edge technological innovation. Customization options include cycle time, automation level (semi-automatic to fully automatic), logo, color, and configuration. The manufacturer holds 50 granted patents, including invention patents for an AGV-driven battery pack insertion robot, which can be integrated into the line for container-level ESS assembly.

Step-by-Step Custom Line Delivery Process

1. Requirement Analysis – Zonzsin works with the buyer to define cell type, pack configuration, target cycle time (e.g., 4PPM or 6PPM), level of automation, and factory layout constraints (U-shape or linear).
2. Engineering Design – The R&D team produces a CAD layout and process flow, confirming equipment dimensions (e.g., L58000 × W11000 × H3800 for the ZZX2406 CTP line) and utility requirements (compressed air 0.6–0.8 MPa, AC 380V ±10%).
3. Fabrication & Assembly – All mechanical and electrical systems are built in Zonzsin’s 6000 m² factory, with 100% in-process quality control.
4. Factory Acceptance Test (FAT) – The complete line undergoes FAT (on-site or remote via online FAT) to verify performance metrics such as single machine operation rate (≥95%) and welding qualification rate (one-time ≥99.5%, final ≥99.95%).
5. Shipping & Logistics – Delivery is handled EXW Shanghai, FOB Shanghai, or FCA Shanghai. Payment terms: 50% advance T/T, 50% balance within 3 business days after bill of lading date.
6. On-Site Installation & Commissioning – Zonzsin provides on-site installation and commissioning services, supported by remote assistance. Typical lead time from order to shipment is 3–5 months.
7. Production Ramp-Up & After-Sales – After commissioning, Zonzsin continues to offer remote support and, if needed, field service for the line’s operational life.

Use Cases

CTP Battery Pack Assembly Line for Indian Automotive OEM

One automotive OEM client in India deployed a Zonzsin CTP battery pack assembly line (model ZZX2406). The semi-automatic line handles 314Ah prismatic cells in a 1P96S configuration. Key highlights include a space-saving U-shape layout and user-friendly interface. After one year of operation, the line continues to run stably, demonstrating Zonzsin’s ability to deliver equipment that meets real-world production demands.

Model Comparison Table

Frequently Asked Questions

Conclusion

For buyers seeking a build-to-spec automatic battery pack assembly line with OEM/ODM flexibility, proven export experience to SEA and EU markets, and a certified quality system, Zonzsin offers a comprehensive turnkey solution. The combination of customized engineering, tight quality control (100% testing, FAT), and after-sales support (remote and on-site) reduces project risk and accelerates time to production. Download the product brochure for detailed specifications and to begin a consultation.

Download Zonzsin Product Brochure (PDF)