About Air Cylinders and Air Cylinder Manufacturers Including: Compressed Air Cylinders, Miniature Air Cylinders, Pneumatic Cylinders, Rodless Cylinders & Stainless Steel Cylinders.
Air cylinders are the final component in a pneumatic or compressed air control or power system. Air cylinders, or pneumatic cylinders, are devices that convert compressed air power into mechanical energy. This mechanical energy produces linear or rotary motion. In this way, the air cylinder functions as the actuator in the pneumatic system, so it is also known as a pneumatic linear actuator. The air cylinder consists of a steel or stainless steel piston, a piston rod, a cylinder barrel and end covers. As compressed air moves into a cylinder, it pushes the piston along the length of the cylinder. Compressed air or a spring, located at the rod end of the cylinder, pushes the piston back. Valves control the flow of compressed air to the cylinder. The choices for cylinder housing styles include the following: tie-rod, smooth body, pancake, rectangular, multiple bore, stainless steel, rodless, compact, miniature/microcylinder, clean profile and twin-rod cylinder.
Air cylinder manufacturers produce two basic types of air cylinders: single acting and double acting. The single acting cylinder is able to perform an operating motion in only one direction. A single acting air cylinder has air pressure on one side of a piston flange, supplying force and motion, and a spring supplying the return force after pressure release. Single acting cylinders require approximately half the amount of air used by a double acting cylinder for a single operating cycle. A double acting pneumatic cylinder has powered motion in two directions, with pressure on both sides. When a cylinder is pushed out in one direction, compressed air moves it back in the other direction. Air lines running into both ends of the cylinder supply the compressed air. The flow of compressed air is controlled with valves for both single and double acting cylinders. Other types of cylinders include rotary cylinders, impact cylinders and multiple- position, or opposed-thrust, cylinders.
Pneumatic systems produce large linear movement and consist of an input, a process and an output. The input is compressed air from the compressor or hand pump. The process is a valve that directs the air to the rod end or base of the cylinder, and the output is an extending or retracting piston rod. Use of pneumatic systems is advantageous because they can be connected with hoses, pipe or tubing without difficulty. Air is inexpensive and plentiful and can be easily compressed and stored in tanks. Exhaust air is relatively environmentally friendly and can be returned to the atmosphere. Pneumatic systems are used to push, pull, lift and open/close doors in material handling and processing. They can also hold, remove and position materials or pieces for manufacturing.
Air cylinder manufacturers produce many different cylinder designs for a variety of applications in different industries. Choosing an air cylinder for a pneumatic system can be a daunting task. Air cylinder manufacturers can customize units with a special stroke, a custom mounting style or unusual seal material. Although custom air cylinders have the advantage of exactly suiting the application, it is recommended to look for an off-the-shelf solution first, as standard air cylinders cost less and are available for quick delivery. In sizing cylinders, focus on the load, velocity and air pressure. The cylinder should be sized to move the greatest load at the lowest acceptable velocity with the minimum available pressure. Determine the stroke length, the spring force (for a single-acting cylinder) and the overall dimensions of the cylinder. The mounting style – the options for which include nose, block, universal, pivot and trunnion – is determined by the size, force and function of the cylinder. Optional components that help to improve cylinder performance or prevent problems include cushions, bumpers, stop tubes, dual pistons, flow controls, position-sensing switches and position feedback sensors. Environmental factors have a huge impact on cylinder operation, so choose seals, beatings, lubricants, materials and finishes that will help counteract any negative effects.
Common Terms Related to Air Cylinders
– A device that converts fluid power into mechanical power. An actuator may be a cylinder or a fluid motor.
– The amount of compressed air that is consumed by a pneumatic cylinder. The energy of the air is converted into power output and exhausted into the atmosphere on the reversal of the piston stroke.
– Device used in a pneumatic power system to supply the compressed air.
– A circumferentially corrugated cylinder that is flexible and thin-walled and may have integral ends that axially contract or expand when under changing pressure.
– The inside diameter of the cylinder tube.
– A term referring to a tightly closing valve seat that prevents the leakage of visible gas bubbles.
– On the working side of the piston, the maximum volume of the cylinder from which the piston displacement volume per stroke is subtracted. Typically, clearance is expressed as a percentage of the displacement volume.
– A cylinder mounting device.
– Air that is at any level of pressure greater than the prevailing atmospheric pressure.
– The connecting assembly used to translate circular motion to linear motion from the crankcase and connecting rod to the cylinder head and piston rod.
– A device in a cylinder that enables the control of movement by restricting the flow at the outlet, stopping the movement of the piston rod.
– Also referred to as a “linear motor,” it is a device that converts pneumatic power into linear (in a line) or reciprocating (back-and-forth) motion.
– The driving force (i.e. the piston power) generated in the cylinder that is a function of the piston diameter, the working air pressure and resistance caused by friction.
– A valve that controls the flow of air in a particular direction.
– A situation in which the valve remains partially open after popping until the pressure further decreases.
– A device through which air is passed in order to separate suspended contaminates. The life of cylinders and valves is lengthened by using filters.
– A liquid or gas.
– Power conveyed and maintained by the use of a pressurized fluid.
– A mounting device for cylinders.
– A device that, when attached to a safety or safety relief valve, prohibits its opening at the set pressure.
– A device that creates mechanical force in a linear manner. Air cylinders are considered linear actuators.
– A designation describing the position of a valve when it is resting (non-activated).
– A designation describing the resting position (non-activated) of a valve.
– The sliding piece that is put into motion by pneumatic pressure. Typically, pistons consist of a short cylinder fitted inside a cylindrical tube in which it moves in and out.
– Determined by opposing forces, operating pressure, inside diameter, length of air line between control valve and cylinder and size of control valve. The piston velocity may also be affected by the installation of any quick-exhaust or throttle valve.
– The use of a gas, usually air, to transmit, convert or store power.
wind turbine- wind turbines- plate bending machine - China Manufacturer Directory
Copyright © 2008-2012 China Manufacturer Directory All rights reserved.