During a production-line upgrade for integrated stoves, the multi-station testing solution directly determines the stability of factory-out quality. An integrated stove combines a gas hob, a range hood and sometimes a disinfection or steaming module in one unit, so every appliance must pass several tests at once rather than on scattered stand-alone rigs. Consolidating ignition, heat-load, flue-gas, wind-pressure and flame-out checks onto one assembly line tests the synergy of sensor layout, gas distribution and data acquisition. A field deployment is documented in our integrated cooker test bench case study, and the production-line configuration is the gas stove production test bench.
The five core tests on every station
Each integrated stove is verified simultaneously on five core links:
- Ignition response and ignition success rate
- Heat-load distribution across the burners
- Flue-gas composition, including CO and CO2
- Wind-pressure balance under simulated exhaust resistance
- Safety flame-out (flame failure) protection
The gas and safety items follow GB 16410 and the equivalent EN 30-1-1 clauses, while the flame-out check uses the method in our gas tightness and flame failure guide. The combined test logic is also covered in our integrated cooker combined testing article.
Equal-pressure gas distribution and sensor layout
High-precision pressure transmitters and thermocouple arrays are fixed at designated positions on the bench. The system records the initial pressure within 0.3 seconds of the gas valve opening, before entering the steady-state combustion phase. The core of the multi-station design is equal-pressure control by the gas-source distributor: through coordinated adjustment of pressure-reducing valves and buffer tanks, gas-supply fluctuation at each station is kept within 2%. For wind-pressure testing, variable-frequency fans work with differential-pressure gauges to simulate smoke-exhaust resistance on different floors, with data uploaded to the central processing unit in real time.
Cycle time, throughput and traceability
Ignition success rates are compared synchronously against thermocouple response times, and units exceeding preset thresholds are automatically routed for re-inspection. In the reference deployment, more than 12,000 test records were accumulated over three months of trial production; the average full test cycle was reduced to 45 seconds, data traceability remained above 99.7%, and the repeatability deviation of the bench was controlled within 0.3%, meeting metrological-calibration requirements. After the takt time improved, the inspection workload per unit dropped significantly.
Calibration and maintenance
Routine maintenance focuses on gas-circuit tightness and sensor zero-point calibration. Calibration is performed weekly using standard gas, solenoid-valve actuation counts are tallied monthly, and wearing parts are replaced on schedule; the valve checks use the solenoid valve test equipment method. The platform supports batch export of inspection reports for after-sales traceability and process optimization. A general service rhythm is given in our calibration and maintenance guide.
Integration with the factory quality system
This solution has been deployed at multiple manufacturing bases, with test data interfaced directly to the enterprise quality-management system. Engineering teams continuously collect operating parameters to optimize control logic, and combustion-curve trend analysis has been added to shorten fault-diagnosis time. Multi-station testing shifts quality control from passive interception to active prevention, while reserving interface capacity for future intelligent upgrades.
Send Wanhe Testing your station count, takt time and appliance models for a multi-station layout proposal and throughput calculation.