The Site Acceptance Test (SAT) is the final and most critical milestone in any AGV forklift deployment. For companies importing AGV systems from China, this stage determines whether the entire automation project is officially accepted, paid for, and moved into full production use.

Unlike traditional forklift delivery, AGV systems require technical validation of software, navigation accuracy, fleet coordination, safety behavior, and real-world warehouse performance.

What KPIs must be met before sign-off? How long should error-free operation last? Who validates load capacity? And what happens if performance targets are not achieved?

1. What Is the Purpose of SAT in AGV Projects?

The Site Acceptance Test (SAT) is conducted after installation, commissioning, and initial debugging. It verifies that the AGV system performs according to contract specifications under real warehouse conditions.

SAT typically confirms:

• Navigation accuracy and stability

• Fleet coordination and task execution

• Safety system response behavior

• Battery charging and operational endurance

• Load handling performance

• System reliability under continuous operation

This is the final validation before formal project acceptance and payment release.

2. Key Performance Metrics for AGV Acceptance

Most Chinese AGV contracts define measurable KPIs that must be achieved before final approval.

Common SAT performance metrics include:

• Navigation accuracy: ±10–30 mm depending on system type

• Docking success rate: ≥ 99%

• Task completion rate: ≥ 98–99%

• Fleet uptime: ≥ 95–99%

• Obstacle detection response time: within milliseconds

• System stability: no critical failure during test window

All KPI thresholds should be explicitly defined in the contract before deployment begins.

3. Required Continuous Operation Time During SAT

A standard SAT requires uninterrupted operation to demonstrate system reliability under real warehouse load conditions.

Typical requirements include:

• Basic systems: 24–48 hours continuous operation

• Industrial warehouse deployments: 72 hours continuous operation

• High-reliability logistics centers: up to 120 hours stress testing

During this period, the system must demonstrate:

• No critical shutdowns

• No repeated navigation failures

• No systemic communication breakdowns

• Stable fleet coordination under load variation

Short interruptions may be allowed depending on contract terms, but repeated failures usually reset the SAT clock.

4. Load Testing and Certified Test Weights

To validate forklift lifting capacity, standardized certified test weights are used during SAT.

These weights are typically provided by:

• Third-party testing agencies

• Local accredited inspection companies

• Customer-supplied certified industrial loads

Load tests verify:

• Maximum lifting capacity

• Load stability during transport

• Braking performance under full load

• Fork alignment accuracy under stress

Using uncertified or estimated weights is not acceptable in formal acceptance testing.

5. What If the AGV Fleet Fails SAT Requirements?

If the system does not meet agreed performance metrics, several outcomes are typically defined in commercial contracts.

Common resolutions include:

• Additional debugging and optimization period

• Software parameter tuning by supplier engineers

• Hardware replacement or adjustment

• Extended SAT retesting period

In more strict contracts:

• Penalty clauses for missed KPIs

• Partial payment withholding

• Refund or system replacement options

Final acceptance should only be signed when performance is stable under real production conditions—not laboratory conditions.

6. Who Participates in the SAT Process?

A proper SAT is a multi-party verification process involving:

• Customer project management team

• Warehouse operations supervisors

• Supplier engineering team (on-site or remote)

• Third-party inspection agency (if required)

• Electrical and IT infrastructure engineers

Each party verifies different aspects of system performance, ensuring objective validation.

7. Common Reasons SAT Fails

• Unstable Wi-Fi or network latency

• Inaccurate warehouse floor mapping

• Insufficient charging infrastructure

• Sensor miscalibration under real load

• Poor traffic management rules

• Unrealistic KPI expectations not matched to environment

Most issues are not hardware failures, but system integration and environment mismatches.

8. SAT Preparation Checklist for Buyers

1. Confirm all KPIs in contract before deployment

2. Prepare certified test weights in advance

3. Ensure warehouse network is fully stable

4. Validate floor conditions and navigation maps

5. Prepare 24/7 test operation schedule

6. Assign internal acceptance team

7. Document all performance test results

8. Define acceptance and rejection criteria clearly

Conclusion

The Site Acceptance Test is the final gateway between installation and full operational deployment. For AGV forklift projects imported from China, SAT is not just a technical formality—it is a contractual and operational validation of system readiness.

Clear KPIs, proper test conditions, and structured evaluation processes are essential to ensure long-term system success.

Before signing final acceptance for AGV forklifts from China, ensure performance is validated under real warehouse conditions—not ideal simulations. SAT is where automation promises become operational reality.