The SIASUN G-40X is an outdoor autonomous tow tractor rated to haul loads of 40,000 kg, placing it at the top of the SIASUN G-series capacity range we list. To keep that tonnage precisely on track outdoors, it integrates multi-source perception — 3D LiDAR, GNSS/RTK satellite positioning, inertial navigation and vision sensors — for accurate localization and intelligent path planning across complex, ever-changing outdoor environments. SIASUN's patented automatic coupling and decoupling technology enables the tractor to dock with and separate from its load cart without operator involvement, delivering an efficient, safe and flexible heavy-duty transport solution. Hydraulic power-assisted service braking and rear-wheel drive provide controlled handling, with travel speeds of 2.2 m/s unloaded and 1.5 m/s at full load.

SIASUN positions the G-40X for modern smart factories, warehouses, production logistics and process-driven material handling where repeatable transport, accurate positioning and safe autonomous operation are essential. It suits heavy outdoor material flows in sectors such as automotive production, lithium battery manufacturing, 3C electronics, pharmaceuticals, food and photovoltaic production, integrating with dispatch and intelligent scheduling software to cut manual handling and keep logistics consistent. The product is sold on a quotation basis — availability, final configuration and integration requirements are confirmed before ordering.