What should be noted for SMC cylinders in all normal applications?

The application of SMC cylinders should comply with all normal working conditions of the cylinder to achieve good practical results. This condition includes pressure category, pressure resistance, natural environment temperature category, application rate category, lubrication condition, etc. Due to the wide variety of cylinder types, the performance and application conditions of various models and specifications of cylinders are different, and the requirements of each manufacturer are also not the same. Therefore, it is necessary to select and apply cylinders based on the product samples of each manufacturer. The general working conditions of a cylinder are that the surrounding environment and material temperature are within the range of 5-60 ° C, and the pressure is within the range of 0.4-0.5MPa (gauge pressure). When exceeding this range, consideration should be given to using rubber seals and very dry gases.

SMC cylinders only bear radial loads, and sealing rings are installed at the matching points of the cylinder's relative speed. Therefore, during installation, hydraulic cylinders only bear the tensile working pressure load, and are not allowed to bear biased loads or axial loads. The axial load should not exceed 120 degrees of torque, otherwise it will accelerate the damage of the sealing ring and render the guiding cylinder ineffective. It is necessary to ensure that the negative bearing direction is consistent with the cylinder centerline.

When selecting a cylinder driver, consideration should be given to the convenience of installation and adjustment, as well as to prevent the piston rod from colliding with the bearing end cover and damaging the cylinder. In the design scheme, an additional 10-20 millimeters of stroke capacity should be arranged according to the required stroke of the organization to prevent damage to the organization or harm to precision. In addition to caching cylinders, additional caching devices can generally be selected. Before running the buffer cylinder, tighten the throttle valve buffer valve to the part with a smaller total flow rate, and then slowly open it.

Except for the cylinder without oil lubrication, all solve the problem of oil lubrication for the cylinder. Generally, pneumatic three-way fittings are installed at locations with a high population of pneumatic valves; In areas with high environmental humidity, water removal equipment should be installed, and a water separation and air filtration device should be installed in front of the pneumatic triple component. In frozen areas with low natural temperatures, the dehumidification requirements for substances (gases) are higher. To increase the service life of the cylinder, it is necessary to ensure excellent lubrication of the cylinder piston rod and cylinder liner, and to use soft plastic sealing between the hydraulic cylinder and the bearing end cover to reduce damage to the sealing ring; Lubricating grease should be applied to the surface of the motion pair, and pneumatic valve channels should be equipped with pneumatic triple fittings, with an appropriate amount of oil leakage adjusted.

When using SMC cylinders as actuators, due to the fluid density of the steam body, the minimum fitness exercise speed in the design scheme should be ≥ 50 millimeters/s, otherwise it will cause imbalance (crawling) conditions. Because the pressure of compressed air in the operation of the cylinder is generally 0.5~0.8MPa, and the specifications of the cylinder structure are not suitable for being too large, when the total output force is ≥ 40kN, a hydraulic cylinder driver should generally be used.

When applying SMC cylinders, it is important to pay attention to the issue of hydraulic cylinder compressive strength. Due to the impact of the external thread on the top of the hydraulic cylinder head, it was damaged. In most places, the hydraulic cylinder bears the torque load. Therefore, it is necessary to consider the stability of the long and thin rod and the problem of the top of the hydraulic cylinder head loosening due to its own weight when installing the cylinder horizontally. During installation, attention should also be paid to the bearing direction, and hydraulic cylinders are not allowed to bear axial loads.

At the top junction of the SMC cylinder head, when the fitness exercise is terminated under high inertia load, it usually experiences impact. Due to its impact effect, it is very easy to cause damage to the top of the hydraulic cylinder head. Therefore, when applying, it is necessary to check the inertia moment of the load, set up blocking and buffering devices for load termination, and remove the unscientific interaction forces on the hydraulic cylinder. If the protective pneumatic machinery equipment is idle for a long time and not in use, it should be operated and maintained on time, or the cylinder should be removed and oiled for maintenance to prevent rust and damage.

Incorrect assembly or long-term use of rodless cylinders can lead to internal and external leaks, insufficient power, and other defects in rodless cylinders, seriously affecting industrial production. Therefore, today's focus is on briefly discussing the maintenance of rodless cylinders and hoping to be helpful to engineers in related mechanical workshops. Firstly, if the piston rod of a rodless cylinder or cylinder head is damaged, it is usually caused by incorrect installation of the piston rod in the rodless cylinder or malfunction of the buffer machine. So our solution is to adjust the center position of the piston rod correctly.

Replacing the sealing ring of the lower buffer or adjusting the lower screw can basically solve this problem. Secondly, the cushioning effect of the rodless cylinder we use is poor, usually due to worn cushion gaskets or damaged adjustment screws. The solution is to replace the seal and adjust the screw, which can solve this problem. Thirdly, if a mechanical rodless cylinder has internal and external leakage issues, it is usually caused by the eccentric installation of the piston rod, insufficient supply of lubricant to the cylinder, and wear or damage to the sealing ring and sealing ring. This is likely caused by impurities in the rodless cylinder.

Therefore, in the case of internal and external leaks in rodless cylinders, it is necessary to update the piston rod as soon as possible and first ensure the coaxiality between the piston rod and the cylinder. The lubricator is working properly to ensure that the rod cylinder is lubricated correctly. If the sealing ring and sealing ring are worn or damaged, the engineer must replace them in a timely manner. If there are impurities in the rodless cylinder, they must be removed in a timely manner to ensure the normal operation of the rodless cylinder.

Firstly, even if the output power of the rodless cylinder is insufficient or the motion is unstable during operation, it is basically due to the piston or piston rod getting stuck, and the main reason is insufficient lubrication. Shortage or other reasons, such as condensation water and impurities in the cylinder. Therefore, our solution is to adjust the center of the piston rod. Ensure that the oil injector is working properly.

Check if the gas supply pipeline is blocked. If there is condensation and impurities in the rodless cylinder, they must be removed in a timely manner.