What are the common faults of high speed punching machines? Troubleshooting of High Speed Punch Press

1. Oil spill
One of the most common high speed press failures is oil leakage. Not only can these oil spills create a mess and potentially cause your high speed press to start malfunctioning, but they can also be a great fire hazard. When oil leaks from a high-speed press, it is usually released as a mist because of the high pressure and temperature of the oil. This mist usually goes unnoticed until it encounters an open flame and catches fire quickly.
Oil in a high-speed press can leak from the system's piston seals, pump plunger, or release valve stem.
An overfilled oil tank, contaminated check balls, or damaged piston packings are often the cause of piston seal leaks. To prevent these problems, never top up the oil reservoir, periodically clean or replace the balls, and replace the piston packings before they start to show signs of wear.
When oil begins to leak from the pump plunger or relief valve stem, the cause is usually a loose packing nut or worn packing. Prevent this problem by checking the machine and tightening the packing nuts when needed and changing the packing regularly.
2. Press rather than build pressure
Another common high-speed press failure is that the press will not generate pressure. Unlike an oil leak, the reasons why a high-speed press system stops producing pressure can vary widely.

Before you start checking the machine for other problems, first check the system directional control setting to make sure it is not reversed. If the setup is optimal, then next, determine if there is a blockage in the system that is preventing fluid from reaching the hydraulic pump. A pump that is not receiving enough fluid may stop building pressure.

If your pump is receiving fluid, the cause of the lack of pressure could be a problem with the machine drive motor. Damaged or misaligned drive motors often cause pump pressure problems.

While pump pressure problems can happen unexpectedly, you can help prevent them by properly maintaining your equipment and taking steps to avoid hydraulic fluid contamination that can cause pump clogs.

3. Hydraulic drift
Another common high-speed press failure is hydraulic drift. While hydraulic drift causes many high speed presses to fail, a sign that your press is experiencing this problem is that the press stops running smoothly and instead jerks during the run.
While the main cause of cylinder drift is uneven cylinder pressure across the piston, the cause of this pressure imbalance can stem from multiple high-speed press failures.

Sometimes, contaminated hydraulic fluid can cause hydraulic drift. Hydraulic drift can also occur when a high-speed press system overheats. When a system runs too hot, the excess heat can damage the system seals by causing them to become too hard and brittle to function properly. Another possible cause of hydraulic drift is leaking piston rod seals. If this leak becomes severe, the piston rod will usually stop working entirely.

To help prevent hydraulic drift, periodically check your system's hydraulic cylinders. During this inspection, the cylinder piston is checked for corrosion, indicating that it needs to be replaced before cylinder drift begins. In addition, regularly check system seals and connections for wear and replace these components when necessary.