ERFURT / MONTERREY / JAKARTA - Battery capacity is no longer being built where the cars are sold; it is being built wherever governments can assemble the incentives, the land and the workforce to host it. Europe, North America, Southeast Asia and India have all pushed cell and pack capacity onto their soil over the past few years, and the plants commissioned now are the ones that will define manufacturing employment for the next two decades. What rarely gets discussed is the last and most labour-intensive stage of that chain: the PACK line, where cells become a finished battery that a vehicle can actually accept.
The global trend is unambiguous. Trade policy has turned battery localisation into an industrial policy objective on three continents at once - the US through domestic-content incentives, the EU through carbon border rules that now bite on imported energy-intensive goods, and Southeast Asia through downstreaming strategies that keep mineral value inside the region. Indonesia's raw-ore export ban, in force since 2020, pushed smelting, precursor and cell investment onshore; Thailand and Vietnam are positioning themselves as assembly hubs for the region. The consequence for equipment suppliers is that PACK and module assembly lines are being duplicated dozens of times over, in places that did not have them five years ago.
Why the PACK line is engineered differently
A PACK line is not a car line. The product is heavy - a completed pack can weigh several hundred kilograms - the work content is dense, and every station needs the pallet held in a precise position while operators or robots work on it. At the same time the line has to keep flowing: buffer, index, stop, work, release, and return the empty pallet to the head of the line without interrupting anything downstream.
That combination is exactly what speed chain conveyors - also called double-plus chain or free-flow conveyors - were designed for. The pallet rides on the chain; a stopper raises and the pallet accumulates without stopping the chain itself, so the drive runs continuously while individual stations hold position. Section by section, the line becomes a buffer-managed assembly system rather than a rigid transfer line.
What a modern PACK line actually needs
A working line is a chain of standard modules, each one a separate purchasing decision:
- Speed chain conveyor sections with aluminium profile frames for the main assembly spine, normally 600 mm pallet width with adjustable VFD drive
- Stoppers and locating units for repeatable pallet positioning at each workstation
- Lift-and-transfer and rotary tables to move pallets between parallel loops or change direction at line ends
- Return loops so empty pallets re-enter the line without manual handling
- Chain, sprocket and wear-part packages sized for continuous three-shift operation
How Mighty Machinery fits the picture
Mighty Machinery builds speed chain conveyor systems and the transmission components inside them - engineered for continuous duty rather than light commercial cycles:
- Speed chain (double-plus chain) conveyors in 3x and 2.5x configurations, 600 mm standard pallet width, 20 m/min line speed, VFD speed control, load capacity up to 1 tonne per metre
- Heavy-load and long-line configurations - lines of 100 m and beyond with multi-row chain arrangement for large pallets
- Lift-and-rotate stations, stoppers and buffer sections for PACK and module assembly layouts
- Matching chains, sprockets and pallet hardware supplied from the same factory, so wear parts and drives are dimensionally consistent
- Custom engineering: line layout review, station spacing, integration with PLC and robot cells
- Export packing, installation supervision and spare-part programmes for plants in Europe, North America, Southeast Asia and the Gulf
PACK lines are being specified right now, at a scale that will not repeat. Contact our assembly-line desk for speed chain conveyor quotations, layout drawings and delivery schedules.