Cleanroom EV & Energy Storage Pack Assembly

Battery Assembly Automation

Nextech designs and commissions complete turnkey EV Battery Pack Assembly Lines. Covering prismatic cell laser terminal cleaning, OCV/AC-IR sorting, automated module compression & strapping, and EOL test benches.

0 Error

Polarity Vision Verification

100%

Laser Clean Traceability

< 35s

Module Takt Time

Class 8

Cleanroom Ready

Division overview

Turnkey engineering & manufacturing

High-precision automated assembly lines for prismatic EV battery modules: laser cleaning, robotic stacking, and End-of-Line testing.

Class 8 / 100,000 cleanroom compatible design with positive air pressure
100% cell-level traceability logging OCV, AC-IR, and laser clean verification
Servo-electric closed-loop compression control holding ±50 Newton tolerances

Engineered systems

Specialized equipment & sub-systems catalog

Explore detailed technical capabilities, cycle metrics, and specifications for each specialized sub-system within Battery Assembly.

Cell Infeed & Laser Surface Cleaning

High-speed fiber laser oxide ablation and barcode traceability

Removes microscopic surface oxide films from prismatic cell terminals prior to wire bonding or busbar laser welding, guaranteeing low contact resistance.

Cleaning Rate: < 2.5s per terminal
Particle Capture: HEPA Cleanroom Safe

Fiber laser cleaning head driven across multi-axis high-speed CNC linear stages
Automated cell barcode / 2D DataMatrix scanning logging individual cell IDs into MES
Integrated HEPA-filtered vacuum extraction capturing 99.97% of vaporized particles
Pre- and post-cleaning optical surface reflectivity verification sensors

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Robotic Stacking & Aerogel Insulation

Pick-and-place cell grouping with automated insulation sheet insertion

Assembles individual prismatic cells into tightly aligned module stacks while interposing thermal insulation sheets with zero polarity orientation errors.

Inspection: OCV + AC-IR Check
Poka-Yoke: Vision Polarity Check

High-speed Cartesian gantry or 6-axis articulated robot with soft-touch vacuum suction cups
In-line Open Circuit Voltage (OCV) and Internal Resistance (AC-IR) testing before pickup
Automatic mylar and aerogel insulation sheet dispensing with thickness verification
High-resolution machine vision cameras confirming cell positive/negative pole orientation

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Module Compression & Automatic Banding

Calibrated servo-electric compression and steel/PET strap securing

Pre-loads cell module stacks to an exact calibrated Newton force to counteract operational swelling and securely bands the module with side-plates.

Force Accuracy: ±50 Newtons
Banding Type: Laser Welded Steel / PET

Servo-electric compression ram with load-cell closed loop force feedback
Precision dimensional stack thickness measurement recorded under active load
Automatic high-tension strapping and laser welding of stainless steel retention bands
Automatic insulation resistance (Hi-Pot) check between cell cans and module frame

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Pack Integration & End-of-Line (EOL) Testing

Thermal paste dispensing, BMS communication flashing, and safety verification

Integrates finished modules into the outer aluminum pack tray, applies thermal paste, and runs comprehensive electrical validation.

Safety Checks: Hi-Pot & Coolant Leak
Automation: Robotic Dispensing

Automated 2-part Thermal Interface Material (TIM) robotic dispensing with bead inspection
Overhead zero-gravity manipulator assisted module placement into vehicle tray
Multi-spindle automatic busbar torque fastening with electronic angle logging
End-of-Line (EOL) high-voltage insulation, BMS CAN-bus flashing, and coolant leak testing

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Performance & compliance specifications

Battery Assembly technical matrix

Parameter	Engineered capability	Compliance / standard
Battery Chemistry Support	Prismatic LFP (Lithium Iron Phosphate) & NMC Cells	Automotive EV Specs
Module Compression Force	Calibrated 2 kN to 30 kN with real-time force-displacement curves	ISO 12405
Traceability Integration	100% cell level 2D DataMatrix scanning synced to cloud MES	Industry 4.0 / OPC-UA
Cleanroom Compliance	Positive pressure HEPA-filtered cleanroom workcells (Class 8 / 100,000)	ISO 14644-1
Electrical Validation	AC-IR, OCV, 3kV Hi-Pot insulation resistance & BMS flashing	ECE R100 Rev 2

Execution methodology

Battery Assembly project lifecycle

Every custom automated machine and material handling line follows our 4-stage engineering lifecycle to ensure zero downtime and seamless plant handover.

01
Concept & 3D CAD Simulation
Translating client takt times, payload limits, and footprint constraints into full parametric models using SolidWorks and CATIA before cutting steel.
- Cycle time study
- 3D kinematic simulation
- Footprint GA drawing
02
In-House Machining & Fabrication
Precision CNC machining on VMCs, heavy plate cutting, and certified structural MIG/TIG welding at our Bagroda and Pithampur facilities.
- CNC milled tooling
- Stress-relieved weldments
- Ultrasonic NDT inspection
03
Electrical Automation & PLC Logic
In-house panel engineering, servo drive integration, safety interlock programming, and HMI design on Siemens, Allen-Bradley, and Mitsubishi platforms.
- E-Plan schematics
- PLC & Safety ladder logic
- MES SCADA integration
04
Factory FAT & Site Commissioning
Rigorous Factory Acceptance Testing (FAT) with actual prototype parts, followed by turn-key installation, ramp-up support, and team training.
- 100% FAT sign-off
- On-site installation
- O&M documentation

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Turnkey engineering RFQ

Have a custom battery assembly project requirement?

Share your layout drawings, cycle time constraints, or component specifications. Our senior engineering team will evaluate technical feasibility and return a detailed concept proposal.

Request technical RFQ Contact engineering team

Battery Assembly Automation

Turnkey engineering & manufacturing

Specialized equipment & sub-systems catalog

Cell Infeed & Laser Surface Cleaning

Robotic Stacking & Aerogel Insulation

Module Compression & Automatic Banding

Pack Integration & End-of-Line (EOL) Testing

Battery Assembly technical matrix

Battery Assembly project lifecycle

Concept & 3D CAD Simulation

In-House Machining & Fabrication

Electrical Automation & PLC Logic

Factory FAT & Site Commissioning

Explore other engineering disciplines

Industrial Automation & SPMs

Material Handling & Logistics

Lifting Solutions & Industrial Cranes

Welding and Heavy Fabrication

Have a custom battery assembly project requirement?