Six-Wheel Drive Off-Road Robot Chassis Kits

The six-wheel drive off-road robot chassis is an automatic robotic chassis specifically designed for heavy loads. The front two wheels utilize an Ackermann geometry steering mechanism (where the inner wheel turns at a greater angle than the outer wheel, ensuring that all wheel axes intersect at the steering center), while all six wheels provide independent drive power or the rear four wheels serve as drive/follow-up wheels, enabling steering on flat surfaces.

This mobile robot chassis is ideal for high-speed driving, offering greater stability than other chassis and lower tire wear (especially on hard surfaces, where it significantly reduces side slippage), and can carry heavy loads (typically suitable for transporting around 800 kg or heavier loads). This chassis is primarily suited for highly structured, flat environments such as indoor warehouses, large factory workshops, port terminals, or industrial park roads. It is commonly used in heavy-duty automated guided vehicles (AGVs) for bulk cargo transportation tasks and is not suitable for rugged wilderness, ruins, or soft terrain.

Parameter Table

High-Speed Stability

Ackermann steering geometry precisely controls the angle difference between the front wheels (the inner wheel angle is greater) to ensure that all wheel axles intersect at the same point when steering, enabling pure tire rolling rather than side slipping. This mechanism significantly reduces the risk of vehicle roll and trajectory deviation during high-speed steering, avoiding the loss of control commonly seen in high-speed scenarios.

Reducing Tire Wear  

In traditional drive systems, tires often experience additional friction due to forced sideways slippage. The Ackermann design ensures that the inner and outer wheels rotate at kinematically different angles, maintaining pure rolling contact between the tires and the ground. This feature is particularly prominent on hard surfaces such as cement and asphalt, reducing lateral friction during steering and extending tire lifespan. In industrial scenarios with frequent steering (such as warehouse AGVs), it reduces maintenance costs and downtime, making it particularly suitable for heavy-duty transportation systems operating under long-term high loads.

High load-Bearing Capacity

The six-wheel drive off-road robot chassis combines Ackermann steering to provide load-bearing capacity, safely carrying heavy loads of around 800 kg. The six wheels evenly distribute the vehicle's weight, avoiding single-point overload, while Ackermann steering optimizes steering torque distribution under heavy loads—the inner wheels provide greater steering force to overcome inertia, and the outer wheels maintain traction to prevent slippage or jamming during heavy-load steering. This ensures that the chassis maintains structural rigidity and reliable handling when carrying large equipment or cargo, avoiding the steering inaccuracy issues that often occur with four-wheel chassis under excessive loads.

Precise Path Tracking

In highly structured, flat environments (such as indoor warehouses or campus roads with predefined paths), this chassis can achieve centimeter-level high-precision path tracking. The geometric characteristics of Ackermann steering ensure that the steering trajectory strictly follows the theoretical arc, reducing cumulative positioning errors, while the wide support base of the six wheels further suppresses body sway. When integrated with inertial navigation or laser SLAM systems, it maintains stable heading during long-distance transportation, making it suitable for tasks with stringent path accuracy requirements.

Large-scale Manufacturing Plant Workshops

Such environments are typically industrial-grade workshops with epoxy resin coatings or high-density concrete floors, constant temperature, and humidity. During operations, robots must perform continuous tasks—transporting heavy components (such as engines, vehicle frames, or other products weighing approximately 800 kg)—and frequently maneuver (such as making U-turns between assembly stations).

Indoor Large Warehouses and Logistics Centers

This environment is the most common application scenario for a six-wheel Ackermann chassis. Warehouses are mostly completely enclosed indoor spaces with high-precision cement-hardened floors, no slope or a slope ≤ 1°, and no gravel, oil stains, or joint gaps on the road surface. When the robot chassis operates continuously at medium to high speeds, the geometric precision of the Ackermann steering ensures pure tire rolling, avoiding the side slip issues associated with traditional drive systems during high-speed turns, thereby controlling path tracking errors within ±1 cm. The six-wheel layout distributes heavy loads, preventing chassis deformation caused by overloading of a single wheel.

Enterprise Parks or University Campuses

This type of environment is suitable for low-speed, high-precision service scenarios, characterized by city-level paved roads (asphalt pavement), no steep slopes (gradient ≤ 3%) or sharp turns, and highly controllable traffic flow (such as restricted hours or dedicated lanes). Robot chassis can perform point-to-point transportation tasks (e.g., campus package delivery, industrial park waste collection), with a payload capacity of 800 kg, and require frequent docking at fixed stations (e.g., dormitory building cargo containers).

Airport baggage handling area and cargo apron

Airports are environments with strict requirements for path accuracy, characterized by indoor/semi-outdoor hardened floors (epoxy mortar floors), constant temperature and humidity. During operation, robots need to move baggage containers (weighing 800 kg) and dock with conveyor belts with centimeter-level precision.