When buying an unmanned forklift from China, overseas buyers should look beyond the number of months stated in the warranty. The more important question is what the warranty actually covers, how claims are handled, and which costs remain the buyer's responsibility.

An autonomous forklift combines mechanical components, hydraulic systems, batteries, controllers, sensors, software, and fleet-management systems. These components may have different warranty conditions.

Does One Warranty Cover the Entire AGV?

Not necessarily.

The supplier may define different warranty coverage for the vehicle body, battery, charger, drive system, hydraulic components, sensors, controllers, and software.

The quotation or contract should therefore identify the warranty period and coverage for each major system.

Mechanical Warranty

Mechanical warranty terms may cover manufacturing defects in components such as the chassis, steering system, mast, forks, hydraulic components, and drive system.

Wear items should be treated separately. Tires, rollers, brake components, seals, and other consumables may have different conditions because their service life depends on operating hours and warehouse conditions.

Battery and Charger Warranty

Battery warranty deserves separate attention because battery performance depends on charging behavior, temperature, operating cycles, storage conditions, and battery-management settings.

Ask what the supplier considers a warranty failure and whether the battery warranty is based on time, cycle count, capacity retention, or another defined condition.

The charger should also have clearly defined warranty coverage.

Software Warranty and Support

Software requires a different type of warranty from mechanical hardware.

Ask whether software defects are corrected during the warranty period and whether the supplier provides remote troubleshooting, software patches, configuration support, and recovery assistance.

Also clarify whether software support ends when the hardware warranty expires or continues under a separate service agreement.

What Happens When a Part Fails?

The contract should describe the warranty claim process.

• Who reports the failure?

• What diagnostic information must be provided?

• How quickly must the supplier respond?

• Who determines whether the failure is covered?

• Who pays for replacement parts?

• Who pays for international shipping?

• Who performs the replacement?

• When does the warranty period restart, if applicable?

Without these details, a warranty may look comprehensive while still leaving important operational costs undefined.

What About On-Site Engineering?

A defective component may be covered by warranty while international travel and local engineering costs are treated separately.

Ask whether the supplier will provide remote diagnosis first and under what conditions an engineer will be dispatched.

For a warehouse that depends heavily on the AGV fleet, the response and escalation procedure can be as important as the warranty duration itself.

Define Warranty Exclusions

The contract should also identify exclusions.

Examples may include unauthorized modifications, incorrect maintenance, physical damage, unsuitable operating conditions, accidents, or components supplied by the customer.

These exclusions should be specific enough that both parties can determine responsibility when a failure occurs.

Warranty Should Be Connected to the Service Plan

For an imported unmanned forklift, warranty and service should be considered together.

The buyer should understand how a hardware failure, software issue, spare-parts requirement, and remote-support request will be handled from the first report through final resolution.

A clearly defined warranty gives the overseas buyer a practical process for dealing with equipment failures instead of relying on a general warranty statement.