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HomeNews Blog How to Maintain a Flanging Machine?

How to Maintain a Flanging Machine?

2025-10-23

A Flanging Machine is an essential piece of equipment for shaping and curling the edges of metal sheets, pipes, and tanks. Regular maintenance not only ensures consistent performance and precision but also extends the lifespan of the machine. Proper care minimizes downtime, prevents mechanical wear, and safeguards operator safety. Below is a complete guide on how to maintain your flanging machine effectively.

Regular Cleaning

Keeping the machine clean is the foundation of maintenance. Metal dust, oil, and chips can accumulate on the working surfaces and internal mechanisms, leading to uneven pressure or tool damage. After each shift, operators should wipe down the frame, table, and rollers using lint-free cloths. Lubrication points should be cleaned before applying fresh oil to prevent dust from sealing in. Once a week, inspect the base and guide rails to ensure that no debris is obstructing movement.

Lubrication and Oil Management

flanging machines operate under high mechanical stress, making proper lubrication critical. Check oil levels daily and replenish with manufacturer-approved lubricants. For hydraulic models, change hydraulic oil every 1,000–1,500 working hours, depending on usage intensity. Always monitor oil color and viscosity—dark or milky oil signals contamination or moisture infiltration. Clean or replace the oil filter regularly to maintain smooth fluid flow and consistent pressure.

Roller and Die Inspection

The rollers and dies are the core components responsible for shaping metal edges. Inspect them every 200 operating hours for signs of wear, cracks, or deformation. Worn rollers can cause uneven flanging and surface scratches on metal sheets. Precision-ground rollers should be re-polished or replaced once roughness exceeds 0.8 µm. Alignment should also be checked to ensure the flanging width remains within the designed tolerance range, typically ±0.1 mm for most industrial applications.

Checking Electrical and Hydraulic Systems

Electrical circuits and hydraulic systems work together to ensure stability and accuracy. Regularly inspect cables, control panels, and safety switches for loose connections or corrosion. For hydraulic systems, test pressure valves and seals for leaks. Replace any damaged hoses immediately to prevent accidents. It is advisable to record system pressure and temperature readings weekly, which helps identify abnormalities before they cause system failure.

Alignment and Calibration

Flanging precision depends heavily on correct alignment between the upper and lower rollers. Misalignment can cause uneven flanges or damage to the sheet edges. Use calibrated measuring instruments to check alignment at least once a month. Recalibrate the control system according to the machine’s manual. Many advanced models come with digital controllers that allow micro-adjustments; regular calibration ensures consistent accuracy in production.

Cooling and Ventilation Maintenance

Overheating can reduce efficiency and damage the motor. Ensure that all fans, vents, and heat exchangers are functioning properly. Clean air filters weekly and replace them when they show excessive blockage. For machines equipped with water-cooling systems, monitor coolant levels and replace water every two months to prevent scale buildup in the circulation pipes. Keep the working environment well-ventilated to maintain an optimal ambient temperature below 35 °C.

Safety Device Verification

Safety systems protect both the operator and the equipment. Inspect emergency stops, limit switches, and safety shields to confirm proper operation. Test the emergency stop button before each shift. Replace worn insulation on electrical cables, and make sure the main power switch is labeled clearly and easily accessible. It is also recommended to document all safety inspections for compliance with industrial standards such as ISO 12100.

Scheduled Professional Servicing

Even with regular in-house care, periodic professional servicing is vital. Every six months, invite certified technicians to perform a full diagnostic inspection. They can measure bearing play, test motor load, and perform vibration analysis to detect hidden wear. Professional maintenance ensures your flanging machine continues to meet production accuracy and safety requirements.

Storage and Idle Machine Care

If the flanging machine will remain idle for long periods, cover it with anti-dust cloth and store it in a dry, temperature-controlled environment. Apply a thin layer of protective oil on the rollers and exposed metal surfaces to prevent rust. Disconnect power supply lines and release hydraulic pressure to protect seals and valves from damage caused by long-term static stress.

Operator Training and Record Keeping

Maintenance is only effective when operators understand the process. Train staff on cleaning procedures, lubrication points, and inspection schedules. Keeping a maintenance log helps track service intervals, oil changes, and part replacements. Consistent record keeping ensures that potential issues can be addressed early and reduces repair costs.


Recommended Manufacturer: ZHUOSHENG

For users seeking durable and high-precision flanging machines, ZHUOSHENG is a trusted choice. The company specializes in advanced sheet-metal processing equipment, offering reliable machines designed for efficiency, safety, and long service life. Their products are supported by excellent technical service and global after-sales support.


Regular maintenance not only enhances the lifespan of your flanging machine but also safeguards the quality of every workpiece it produces. By following these care steps and choosing trusted partners like ZHUOSHENG, you can keep your production line operating smoothly for years to come.


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