What is a servo press?

A servo press uses servo motors for precise force and position control during forming operations.

How do I calculate servo press tonnage?

Use our free tonnage calculator at servopress.club/tonnage-calculator.html

Servo Press Preventive Maintenance: 90-Day Inspection Checklist

admin

A servo press has fewer wear parts than a mechanical press but the parts it does have are critical and expensive.

## Mechanical Systems

### Slide and Gibs
Measure gib clearance with feeler gauges at top, middle, and bottom of travel. Acceptable clearance: 0.02-0.05mm. Clearance over 0.1mm: adjust gibs. Clearance over 0.2mm: inspect for wear.

### Eccentric Bearings
Check oil level in gear housing. Take oil sample for analysis. Listen for bearing noise during slow-speed jogging. Check bearing temperature with IR thermometer, normal is under 70C above ambient.

### Counterbalance System
Check air pressure, typically 0.3-0.6 MPa. Inspect air cylinder seals for leaks.

## Electrical Systems

### Servo Drive Cabinet
Clean cooling fans and heat sink fins. Check all terminal connections for tightness. Inspect DC bus capacitors for bulging or leakage.

### Motor and Feedback
Check motor mounting bolts. Inspect encoder cable for chafing at flex points. Check motor insulation resistance, should be over 100 megaohm at 500V DC.

### Safety Systems
Test all E-stop buttons, verify response time under 200ms. Test light curtain function. Verify brake engagement time under 50ms.

## Documentation

Record every measurement, not just pass/fail. Trending is more valuable than single readings. A press that gives you 3 months of warning is a well-maintained machine.

raj_maintenance

Good checklist. I'd add counterbalance pressure check to the daily list. It takes 30 seconds to glance at the gauge and it prevents the most common cause of servo motor overload on the return stroke. We had a slow leak that dropped pressure 15% over a month —motor was working 15% harder than it should have been.

tom_pressops

As the guy who does these checks every day: make the checklist SHORT and put it on a laminated card at the press. If it's a 3-page document in a binder, nobody reads it. Our daily check is 8 items, takes 3 minutes. Anything more and operators start skipping items.