Common Gantry Shear Faults and Effective Maintenance Tips

• Sep 27, 2026
• Troubleshooting

A heavy-duty gantry shear is a high-investment core device for scrap metal recycling. Most equipment downtime is caused by daily improper operation and neglected maintenance. Reasonable daily maintenance and timely fault handling can effectively extend the service life of the gantry shear and reduce production losses.

1. Slow Hydraulic Cutting Speed

Common reasons: Insufficient hydraulic oil, oil pipe blockage, or hydraulic system pressure attenuation. Solution: Replace qualified hydraulic oil regularly, clean the oil filter, and adjust system pressure parameters.

2. Equipment Jamming During Cutting

It usually occurs when processing uneven car shell materials or overloading feeding. Solution: Avoid overfeeding, clean residual materials in the cutting box regularly, and ensure uniform feeding.

3. Blade Abnormal Noise & Wear

Long-term processing of hard thick steel plates will cause blade wear and gap deviation. Solution: Regularly check blade gaps, polish worn blades, and replace severely damaged blades in time.

4. Overheating of Hydraulic System

Long-time continuous operation without heat dissipation will cause system overheating and automatic protection shutdown. Solution: Keep the cooling system unobstructed and avoid 24-hour overload operation without rest

Daily Maintenance Checklist

Check hydraulic oil level every day; clean dust and residual materials; fasten loose bolts; test PLC control system regularly; lubricate moving parts weekly.

FAQs

Q1: How often should the gantry shear blade be replaced?

A: Under normal working conditions, the alloy blade can work for 6-12 months, depending on processing materials and daily output.

Q2: Why does the machine fail to cut thoroughly?

A: Insufficient hydraulic pressure or excessive blade gap is the main reason. Adjust pressure and blade gap to solve the problem.

Conclusion

Daily maintenance is the key to stable operation of gantry shears. Scientific maintenance can reduce failure rate by more than 80%. If you encounter equipment operation problems, our professional technical team provides 24-hour online after-sales support.