FESTO Germany Festo DSNU-32-60-PPV-A-MH

FESTO Germany Festo DSNU-32-60-PPV-A-MH

Cylinder - Cylinder type:

Pneumatic actuators that convert the pressure energy of compressed gas into mechanical energy in pneumatic transmission. There are two types of cylinders: those that perform reciprocating linear motion and those that perform reciprocating oscillation (see figure). Cylinders that perform reciprocating linear motion can be divided into four types: single acting, double acting, diaphragm type, and impact cylinder.

① Single acting cylinder: Only one end has a piston rod, and gas is supplied from one side of the piston to generate air pressure. The air pressure pushes the piston to generate thrust and extend, returning by spring or self weight.

② Double acting cylinder: alternate air supply from both sides of the piston, outputting force in one or two directions.

③ Diaphragm cylinder: Replace the piston with a diaphragm, output force in only one direction, and reset with a spring. It has good sealing performance, but short stroke.

④ Impact cylinder: This is a new type of component. It converts the pressure energy of compressed gas into the kinetic energy of high-speed (10-20 meters/second) movement of the piston to perform work. The impact cylinder has added a middle cover with nozzles and discharge ports. The middle cover and piston divide the cylinder into three chambers: the storage chamber, the head chamber, and the tail chamber. It is widely used in various operations such as cutting, punching, crushing, and forming. The cylinder that oscillates back and forth is called a swing cylinder. The inner cavity is divided into two by blades, and the two chambers are alternately supplied with gas. The output shaft oscillates with a swing angle of less than 280 °. In addition, there are rotary cylinders, gas-liquid damping cylinders, and stepper cylinders.

The function of the cylinder:

Convert the pressure energy of compressed air into mechanical energy, and drive the mechanism to perform linear reciprocating, swinging, and rotating movements.

Classification of cylinders:

Linear reciprocating cylinders, swinging cylinders, pneumatic claws, etc.

Structure of cylinder:

A cylinder is composed of a cylinder barrel, end caps, pistons, piston rods, and seals

Technical Specifications:

Pressure control range: 0.3-7 bar

Input pressure 1 0,8-20 bar

Maximum pressure hysteresis of 0.25 bar

Standard rated flow rate of 3.000 l/min

Analog output 0-10V

The type of input port complies with IEC 61131-2

Non electric insulation

Rated working voltage DC 24 V

The maximum current consumption at rated working pressure is 1 A

Maximum current consumption of 3.5 A at 24 VDC

Control duration/interval ratio 1:3

Allowable pressure fluctuation+/-10%

Working medium air quality level 5:4: - Complies with DIN ISO 8573-1

CE symbol (see applicable standards) according to EU-EMV guidelines

Corrosion resistance level CRC 2

Storage temperature 0-50 ° C

Medium temperature 0-50 ° C

FESTO Germany Festo DSNU-32-60-PPV-A-MH

Advantage:

(1) The requirements for users are relatively low. The principle and structure of the cylinder are simple, easy to install and maintain, and have low requirements for users. Electric cylinders are different. Engineering personnel must have a certain level of electrical knowledge, otherwise it is highly likely to be damaged due to misoperation.

(2) High output power. The output force of the cylinder is proportional to the square of the cylinder diameter; The output force of an electric cylinder is related to three factors: cylinder diameter, motor power, and screw pitch. The larger the cylinder diameter and power, and the smaller the screw pitch, the greater the output force. A cylinder with a diameter of 50mm theoretically has an output force of 2000N. For electric cylinders with the same diameter, although different companies have different products, they generally do not exceed 1000N. It is obvious that cylinders have an advantage in output force.

(3) Strong adaptability. Cylinders can work normally in high and low temperature environments and have dust and water resistance, and can adapt to various harsh environments. However, due to the large number of electrical components, electric cylinders have high environmental requirements and poor adaptability.

The advantages of cylinders are mainly reflected in the following three aspects:

(1) The system composition is very simple. Due to the fact that the motor is usually integrated with the cylinder body, coupled with the controller and cables, the entire system of the electric cylinder is composed of these three parts, which are simple and compact.

(2) There are many stopping positions and high control accuracy. Generally, there are two types of electric cylinders: low-end and low-end. The stopping positions for low-end products include 3, 5, 16, 64, etc., which may vary depending on the company; End products can reach hundreds or even thousands of positions. In terms of accuracy, electric cylinders also have the advantage of juedui, with a positioning accuracy of up to 0.05mm, so they are often used in precision industries such as electronics and semiconductors.

(3) Strong flexibility. Undoubtedly, the flexibility of electric cylinders is much stronger than that of pneumatic cylinders. Due to the direct connection between the controller and PLC, precise control of the motor's speed, positioning, and forward and reverse rotation can be achieved. To a certain extent, the electric cylinder can move freely according to needs; Due to the compressibility of gases and the inertia generated during movement, even if the directional valve and magnetic switch are well coordinated, accurate positioning of the cylinder cannot be achieved, and flexibility is also impossible to talk about.