Tongfu Microelectronics Co., Ltd.

An IC packaging and test company; DHMSCare monitors its pumps and motors.

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30–40%Less unplanned downtime
10–20%Higher availability
20–50%Less maintenance planning time

About the customer

Based in Nantong, Jiangsu, Tongfu Microelectronics provides integrated-circuit packaging and test services.

The challenge

Packaging and test cleanrooms depend on reliable utility equipment; a pump failure affects the production environment.

Pump condition is hard to judge by hand

Early wear on a magnetic-drive pump is hard to spot on inspection rounds.

Monitored equipment and installation

Sensors at the three measuring points of the Roots vacuum pump

Sensors at the motor output end and pump output end of the magnetic-drive pump

Findings and response

Deployment
Each magnetic-drive pump (750 W, 3450 rpm) carries two measuring points — the motor output end and the pump output end — and each Roots vacuum pump (7.5 kW, 2920 rpm) carries three — the motor drive end, the pump inlet end and the pump outlet end — with vibration and temperature collected together.
Trend warning
During monitoring, the surface temperature of one magnetic-drive pump rose from an average of 50 °C to 57 °C and its vibration severity increased 40% against the baseline; both indicators kept trending up and triggered a trend warning.
Root cause confirmed
The customer put the pump on the priority tracking list and maintained it during the overhaul; the root cause was confirmed as process by-product deposits breaking the rotor balance and increasing friction.
Steady throughout
The Roots vacuum pumps stayed within their normal vibration and temperature ranges at every measuring point, with no abnormal alarms, keeping the line running continuously.

Value

Sampling on a fixed schedule

Vibration data from the pumps, motors and other driven equipment is sampled on a fixed schedule and compared with each asset's own baseline on the platform; an alert goes out when a change is confirmed.

Diagnostics filed with the asset

Each asset's vibration trend and diagnostic conclusions are filed with the asset on the platform, so maintenance handovers no longer depend on paper records.

Products and deployment

Software ProductDHMSCare - AI Care Version
Terminal ProductDHMSCare wireless vibration and temperature sensors and smart gateways
Monitoring scopeMagnetic-drive pumps and Roots vacuum pumps