Troubleshooting of 200T Open Back Servo Punch Press Clutch Heat Accumulation Fault, Restoring Stable Production

Troubleshooting of 200T Open Back Servo Punch Press Clutch Heat Accumulation Fault, Restoring Stable Production for Automotive Stamping Component Manufacturer

Our after-sales engineering team received a service call from an automotive parts stamping plant in Eastern China. The customer’s 200T open back servo punch press experienced continuous clutch overheating during high-volume production of automotive bracket parts. The surface temperature of the friction clutch kept rising rapidly, triggering thermal protection shutdowns every 45 to 60 minutes, which interrupted continuous stamping and caused huge production losses. Our technicians arrived on site within 24 hours, completed full inspection of clutch air pressure, friction plate wear, lubrication circuit and cooling fan operation. Root causes were identified: worn friction plates, insufficient cooling air flow and improper air pressure setting. After component replacement and parameter recalibration, the equipment resumed normal operation. Continuous 72-hour running test verified that clutch temperature remained within the allowable range, and the customer’s production schedule got back on track.

Data Table 

Q&A

Q1: What immediate impact did the clutch overheating fault bring to the stamping workshop? A1: Periodic thermal shutdowns forced frequent production restarts, generated inconsistent part dimensional tolerance, increased scrap rate and delayed delivery of automotive stamping brackets.

Q2: Why did the fault only occur under continuous high-speed stamping instead of idle operation? A2: Friction heat accumulates rapidly under long-time load stamping. At idle state, friction engagement frequency is low, so temperature rise is not obvious.

Q3: What is the recommended regular inspection cycle for servo punch press clutch assemblies? A3: Visual inspection and temperature check every 1 month; full disassembly and wear measurement of friction plates every 6 months under heavy-duty continuous production.

Q4: Can temporary reduction of stamping speed solve the overheating problem permanently? A4: Reducing speed can lower heat generation temporarily, but it cannot eliminate hidden risks caused by worn friction plates and insufficient cooling. Complete overhaul is required.