What to Look for When Buying a Used Press Brake

Buying a used press brake requires careful inspection to avoid costly problems. A well-chosen used machine offers significant savings. This checklist helps you evaluate condition and value.

Pre-Purchase Planning

Define Your Requirements

Before shopping, specify:

• Tonnage needed: Based on material thickness and length
• Bed length: Maximum part size you’ll bend
• Control type: Manual, NC, or CNC
• Accuracy requirements: Tolerance needs for your work
• Budget range: Including rigging and any repairs

Research Machine Values

Understand fair pricing:

• Check recent auction results
• Review dealer asking prices
• Consider age, condition, and hours
• Factor in rigging costs (often $2000-5000)
• Budget for immediate repairs or updates

Visual Inspection Checklist

Frame and Structure

Inspect for structural issues:

• Cracks: Check welds and high-stress areas
• Bending: Look for frame deflection
• Levelness: Machine should sit flat
• Bolts: All should be tight and present
• Foundation: Check for settling or damage

Ram and Bed Condition

Critical wear areas:

• Wear plates: Check for excessive wear
• Gibbs: Should have minimal play
• Surface condition: Look for scoring or damage
• Parallelism: Ram should be parallel to bed

Hydraulic System Inspection

Hydraulic Components

Check these items:

• Oil level and condition: Should be clear, not milky
• Leaks: Inspect all fittings, hoses, and cylinders
• Pump noise: Should run smoothly without whining
• Pressure: Test with gauge if possible
• Cylinders: Check for scoring and leaks

Hydraulic Test

Operate machine and observe:

1. Ram should move smoothly without jerking
2. No unusual noises from pump or valves
3. Pressure builds to specification
4. No drifting when holding position
5. Temperature stays normal during operation

Control System Evaluation

CNC Controls

For CNC machines:

• Power up: All functions should work
• Display: Screen should be clear and readable
• Back gauge: Test movement and accuracy
• Programs: Verify ability to create and run programs
• Error codes: Check for active faults

Manual and NC Controls

Check simpler systems:

• All switches and buttons function
• Foot pedal operates correctly
• Stroke settings work properly
• Back gauge moves smoothly
• Emergency stops function

Tooling Assessment

Included Tooling

Evaluate tooling condition:

• Punches: Check for wear, chips, and straightness
• Dies: Inspect radii and surfaces
• Clamping: Verify tool holders work
• Completeness: Note what’s included
• Value: Quality tooling adds significant value

Tooling Compatibility

Verify tooling specs:

• American or European style
• Correct length for machine
• Appropriate tonnage rating
• Suitable for your applications

Test Bend Evaluation

Performance Testing

If possible, run test bends:

1. Bend test pieces at different positions
2. Check angle consistency across bed
3. Verify back gauge accuracy
4. Test repeatability with multiple bends
5. Try different materials if available

Accuracy Checks

Measure test pieces:

• Bend angle consistency (±1 degree typical)
• Flange length accuracy
• Repeatability across multiple parts
• Compare to your requirements

Red Flags to Avoid

Warning Signs

Walk away if you find:

• Cracked or welded frame repairs
• Excessive ram play or slop
• Major hydraulic leaks
• Non-functional controls
• Missing critical components
• Evidence of crash damage
• Seller refuses test operation

Price Negotiation

Use Findings as Leverage

Negotiate based on:

• Needed repairs or replacements
• Worn tooling that must be replaced
• Missing features or components
• Rigging and installation costs
• Market comparables

Conclusion

Buying a used press brake offers savings but requires careful inspection. Check frame condition, hydraulic system, controls, and tooling. Run test bends when possible. Document all findings and use them for negotiation. A thorough inspection prevents expensive surprises.

FAQ

What’s a fair price for a used press brake?

Prices vary widely by age, condition, and capacity. Research comparable machines. Generally 30-60% of new price for good condition.

Should I buy CNC or manual?

CNC offers better accuracy and repeatability for production work. Manual is fine for simple, low-volume bending.

What’s the most important thing to check?

Frame condition and ram parallelism are critical. Structural issues are expensive or impossible to fix.

Is it worth buying from a dealer vs auction?

Dealers often provide inspection, warranty, and support. Auctions offer lower prices but sold as-is. Consider your risk tolerance.