Selecting AGV components is not simply a matter of choosing a motor, controller, gearbox, and wheel separately.
These components work as one motion system, so changing one component can affect several others.
A motor may have enough power, but the vehicle can still lack torque if the gear ratio is wrong. A controller and servo drive may both support CANopen communication but still be incompatible. A drive wheel may have sufficient rated load but be unsuitable for the required speed, floor condition, or installation height.
When developing a new AGV or AMR, the better approach is to start with the vehicle requirements and then select the AGV components as a complete system.
This guide focuses on the components that directly affect AGV motion, steering, load capacity, speed, and control.
What Are the Main AGV Components?
An AGV normally includes control, drive, navigation, safety, power, and load-handling systems. Typical components include:
| System | Typical AGV Components | Main Function |
| Control | AGV Controller, PLC, I/O Modules | Vehicle Logic And Motion Commands |
| Drive | Servo Drive, Motor, Gearbox, Drive Wheel | Generate And Transfer Motion |
| Steering | Steering Motor, Steering Gearbox, Steering Drive Wheel | Change Vehicle Direction |
| Feedback | Encoder, Position Sensors | Speed And Position Feedback |
| Navigation | LiDAR, QR Reader, Magnetic Sensor, IMU | Vehicle Positioning And Navigation |
| Safety | Safety Scanner, Bumper, Emergency Stop | Collision And Personnel Protection |
| Power | Battery, BMS, Charger | Energy Supply |
| Load Handling | Lifting Module, Fork, Roller, Tow Mechanism | Material Handling |
All of these are important, but the drive and motion components require particularly careful matching. The rest of this guide focuses on the AGV drive components that determine how the vehicle actually moves. To know more about each agv component, you can read this blog post about complete introduction about agv components.
Main AGV Components in the Drive System
A complete AGV includes control, navigation, safety, power, and material-handling systems. For vehicle motion, however, several components are especially important.
| AGV Component | Main Function |
| AGV Controller | Calculates Vehicle Motion And Coordinates Axes |
| Servo Drive | Controls Motor Speed, Torque And Position |
| Servo Motor | Generates Mechanical Motion |
| Gearbox | Adjusts Motor Speed And Output Torque |
| Drive Wheel | Transfers Driving Force To The Floor |
| Steering Drive Wheel | Combines Traction And Steering |
| Differential Drive Unit | Controls Direction Through Wheel-Speed Difference |
| Encoder | Provides Speed Or Position Feedback |
| Caster Wheel | Supports Vehicle Load |
| Lifting Module | Provides Vertical Motion When Required |
These AGV components should not be treated as independent catalogue items. Motor power, gearbox ratio, wheel diameter, controller communication, encoder type, and chassis configuration all need to match the same vehicle.
How AGV Drive Components Work Together
A typical AGV drive chain can be simplified as:
AGV Controller → Servo Drive → Servo Motor → Gearbox → Drive Wheel → Vehicle Movement
The AGV controller works at the vehicle level. It determines how the chassis should move based on navigation commands, sensor input, and vehicle logic.
The servo drive works closer to the motor. It receives commands from the controller and regulates motor speed, position, torque, acceleration, and feedback.
The motor generates mechanical power, while the gearbox converts motor speed and torque into the output required by the wheel. The drive wheel then transfers that force to the floor.
This is why motor wattage alone is not enough to select a drive system.
A 750 W motor may work well in one AGV but perform poorly in another because the wheel diameter, reduction ratio, vehicle speed, slope, or number of driven wheels is different.
The same principle applies to the controller. An AGV controller should be selected according to the chassis architecture and number of controlled axes, not simply according to how many communication ports it has.
AGV Components for Different Chassis Configurations
Different AGV structures require different combinations of motion components.
| Chassis Type | Typical Components | Main Concern |
| Differential Drive | 2 Drive Units, Controller, Casters | Wheel Synchronization |
| Single Steering Drive | Steering Module, Controller, Casters | Turning Radius |
| Dual Steering Drive | 2 Steering Modules, Multi-Axis Control | Steering Synchronization |
| Four Steering Drive | 4 Steering Modules, Controller | Multi-Axis Coordination |
| AGV Forklift | Drive, Steering And Lifting Systems | Load Stability |
A differential-drive AGV normally changes direction by adjusting the speed difference between the left and right drive wheels. The structure is relatively simple, but straight-line accuracy depends on wheel consistency, encoder feedback, load distribution, and control tuning.
A steering-drive AGV adds another controlled motion: steering angle. With one steering wheel, the architecture may remain relatively simple. With two or four steering modules, synchronization becomes much more important because multiple traction and steering axes must work together.
For an AGV forklift, the drive system must also work with the lifting system. In this case, vehicle motion, steering, load stability, and lifting control all need to be considered during component selection.
How to Select the Right AGV Components
The first parameter to confirm is total vehicle weight, not payload alone. The drive system must move the payload together with the chassis, battery, frame, sensors, electronics, lifting mechanism, and other hardware.
Speed, slope, acceleration, and wheel diameter then determine how much torque and motor power the vehicle actually needs. A high reduction ratio can increase wheel torque but reduce maximum speed, while a lower ratio may increase speed but reduce available torque.
Wheel diameter also creates a trade-off. A larger wheel can provide better ground clearance and obstacle-crossing ability, but it normally requires more torque to generate the same tractive force.
Installation space is another practical constraint. Low-profile AGVs may need a horizontal steering or drive structure because a conventional vertical unit cannot fit within the available chassis height.
The control system should be considered at the same time. The controller, servo drive, motor feedback, and encoder need compatible communication and control modes. Having the same connector or CANopen interface is not enough by itself.
In practice, the most important selection inputs are:
Total Vehicle Weight + Payload + Speed + Slope + Wheel Diameter + Drive Configuration + Installation Space + Communication Requirements
These parameters should be defined before individual AGV components are ordered.
Common AGV Component Matching Problems
One of the most common mistakes is choosing motor power only according to vehicle load. Load is important, but without considering wheel diameter, gear ratio, speed, slope, and acceleration, motor selection can still be wrong.
Another problem is selecting the motor and gearbox separately. A motor may have sufficient rated power, but an incorrect reduction ratio can result in excessive speed or insufficient wheel torque.
Wheel loading is also often underestimated. The wheel must carry part of the entire vehicle weight, not only the payload, and load distribution may not be perfectly equal across all wheels.
Communication compatibility can create similar problems on the control side. Two devices may both support CANopen, for example, but still use different protocols, command formats, or feedback definitions.
These problems are much easier to solve during the design stage than after the AGV prototype has already been assembled.
Standard or Custom AGV Components?
Standard products are suitable for many AGV projects, especially when the vehicle uses common motor voltages, wheel diameters, mounting dimensions, and load ranges.
Custom AGV components become more useful when the chassis has a specific engineering constraint, such as low installation height, unusually high payload, special wheel diameter, different reduction ratio, non-standard mounting interface, encoder requirements, or cable and connector limitations.
Customization should solve a real system problem.
For example, a low-profile chassis may require a horizontal drive structure, while a heavy-duty vehicle may need a different gearbox ratio or wheel size to achieve the required torque.
How to Choose an AGV Components Supplier
A good AGV components supplier should provide more than a product catalogue.
For a new vehicle project, the supplier should be able to understand how motor power, gearbox ratio, wheel diameter, steering configuration, controller communication, and installation space affect one another.
It is also useful if the supplier can provide 2D or 3D drawings early in the project so that the drive units can be included in the chassis design before prototype production begins.
When several motion components are being purchased together, system matching becomes even more important. A motor recommended without considering the gearbox and wheel may create integration problems later. The same applies to a controller that has not been checked against the servo drive and encoder.
An AGV components manufacturer may be particularly useful when the project requires different wheel sizes, reduction ratios, mounting interfaces, or integrated drive modules.
For a simple replacement part, a distributor may be enough. For a new AGV design, engineering and matching support are usually more valuable.
What Should You Send When Requesting AGV Components?
A supplier can recommend components much more accurately when basic vehicle information is available.
Instead of only asking for a catalogue, provide your chassis drawing together with the total vehicle weight, payload, required speed, maximum slope, wheel or ground-clearance requirements, installation space, number of drive wheels, steering configuration, motor voltage, encoder type, communication protocol, and expected quantity.
With this information, the complete motion chain can be reviewed together:
Controller → Servo drive → Motor → Gearbox → Drive wheel
This reduces the risk of choosing individual parts that look suitable on paper but do not perform well as a complete system.
HKT ROBOT AGV Components and Drive System Support
HKT ROBOT focuses on AGV and AMR drive and motion systems. Our product range includes AGV controllers, servo drives, servo motors, planetary gearboxes, steering drive wheels, differential drive units, drive wheels, caster wheels, and lifting components.
Rather than selecting each component separately, we can review the motion system based on the actual vehicle requirements.
Payload and total weight help determine wheel load and required drive force. Speed and slope affect motor power and gearbox ratio. Chassis layout determines whether differential drive, single steering, dual steering, or another configuration is more suitable. Installation space affects the drive-module structure, while controller, servo drive, encoder, and communication requirements need to be matched together.
Need agv components for building a new agv or amr? Send us your chassis drawing, vehicle weight, payload, required speed, slope, and drive configuration. HKT ROBOT is always ready to help you.
AGV Components FAQs
What Are the Main AGV Components?
The main AGV components include the controller, servo drive, motor, gearbox, drive wheel, steering system, encoder, caster, battery, navigation sensors, safety devices, and load-handling mechanisms.
How Do I Select AGV Components?
Start with the complete vehicle requirements, including total weight, payload, speed, slope, wheel diameter, chassis layout, installation space, encoder, and communication protocol. Then match the controller, drive, motor, gearbox, and wheel as one system.
Can AGV Components Be Purchased Separately?
Yes. Motors, controllers, servo drives, gearboxes, steering drive wheels, differential drive units, casters, and other components can be purchased separately, but their mechanical and electrical compatibility should be confirmed first.
Compartir:
How to Choose an AGV Controller for Different AGV and AMR Drive Systems