Pneumatic Linear Actuator

A: A lubricator for a pneumatic system provides lubrication to internal working parts of pneumatic tools and components, including actuating cylinders, valves and motors. The device injects a stream of oil into the airline, ensuring they perform at the optimum level at all times.

A: What are the common factors in the failure of a Linear Actuator? Improper loading, failure to set limit switches, excessive duty and extreme environments may contribute to premature actuator failure.

A: The largest maintenance problem in pneumatic systems is leakage. Pneumatic systems are prone to leaks due to the use of compressed air, which can escape through worn-out seals, valves, or connections. These leaks can lead to decreased performance, inefficiency, and increased energy consumption.

A: The most common problems are likely to be a slow-moving or drifting actuator, insufficient pressure, issues with valves or the filtration unit. You can learn more about pneumatic systems and some of the most common issues here.

A: Most of today's pneumatic systems are lubricated. Non-lubricated systems demand more careful selection of components, consistently dry air, and fine filtration. The big advantage of a non-lubricated pneumatic system, of course, is not having to maintain lubricators or keep them supplied with oil.

A: Mineral oil-based lubricants are derived from petroleum and are among the most commonly used lubricants for pneumatic cylinders. They offer good lubricity, protection against wear, and are compatible with many seal materials.

A: Simply connect a multimeter in series with one of the leads of a powered linear actuator and watch the amperage reading as you extend/retract the rod. Based on the reading, you can determine a power supply that will be able to handle that current draw.

A: Common cause: The actuator is undersized for the load. An undersized actuator most likely causes a cantilevered load issue. Sizing actuators correctly for the application is a crucial factor often neglected in favor of cost-efficiency. However, an undersized actuator will not be able to operate.

A: Saftey factor– A given multiple of the valve's operating torque to ensure proper operation of the actuator. Many customers ask for a 25% safety factor, so if a valve requires 100 in-lb torque to open, you would size the actuator's break torque at 125 in-lbs.

A: Check for and seal air leaks. Add lubricant to mist lubricators. Externally clean components and actuators. Lubricate cylinders and pivot points.

A: Problems like leaks, burst hoses, worn seals, and broken components should be easily be identified by simply walking around the equipment. You should check the pressure regulator valves to ensure that there's enough pressure.

A: Optimising Your Pneumatic Cylinder's Performance
Regular cleaning, an inspection of seals, lubrication and replacement of worn components are the best routes to maintaining your cylinder's peak operating condition. This reduces the risk of failure and optimises its overall performance.

A: When an actuator fails, it could result in catastrophic explosion, spill, chemical release, property damage, power loss, environmental contamination, injury, or even loss of life. Actuators trigger immediate shutdowns which could result in costly production downtime.

A: The electric motor
As stated above, an electric actuator relies upon an electric motor to provide needed torque. Over time, issues like overheating or stress can and do causeelectric motors to fail. If this is the case, electric motor repair or rebuilding may be necessary.

A: There are several different ways to control pneumatic actuators. The most common method is to use a solenoid valve, which is a type of valve that is controlled by an electrical signal. When the solenoid valve is energized, it opens a port that allows compressed air to flow into the actuator.

A: Pneumatic actuators rely on some form of pressurized gas — most often compressed air — entering a chamber, where the gas builds up pressure.