Introduction to the Performance Characteristics and Selection of Japanese SMC Cylinders

The types of SMC cylinders in Japan include integral and single cast. Single casting is divided into two types: dry and wet. When the cylinder and cylinder body are cast as a whole, it is called an integral cylinder; When the cylinder and cylinder body are cast separately, the single cast cylinder barrel is called the cylinder liner. The cylinder liner that comes into direct contact with the cooling water is called a wet cylinder liner; Dry cylinder liners are those that do not come into direct contact with cooling water. In order to maintain the tightness of the contact between the cylinder and the piston and reduce the friction loss of the piston during its movement, the inner wall of the cylinder should have high machining accuracy and shape dimensions.

The SMC cylinder in Japan is the casing of a steam turbine. The main function of the cylinder is to separate the flow passage of the steam turbine (nozzle, baffle, rotor, etc.) from the atmosphere, ensuring that the steam completes the work process inside the steam turbine. In addition, it also supports certain stationary components of the steam turbine (such as baffles, nozzle chambers, gland sleeves, etc.), bears their weight, and also withstands thermal stress caused by uneven temperature distribution along the axial and radial directions of the cylinder.

1. The Japanese SMC cylinder is a cylindrical metal component that guides the piston to perform linear reciprocating motion inside the cylinder. The working fluid converts thermal energy into mechanical energy through expansion in the engine cylinder; The gas is compressed by the piston in the compressor cylinder to increase the pressure.

2. The casing of turbines, rotary piston engines, etc. is often referred to as a "cylinder". The application fields of cylinders include printing (tension control), semiconductors (spot welding machines, chip grinding), automation control, robots, and so on.

The cylindrical chamber of the Japanese SMC cylinder contains a piston driven by the pressure or expansion force of the working fluid, which is a similar but non cylindrical part in some special types of engines. So what are the performance characteristics of cylinders? How to make a selection? The editor from Wuxi Pneumatic Technology Research Institute Co., Ltd. will introduce to you:

1、 Performance and characteristics of Japanese SMC cylinders:

1. Non lubrication: This product uses oil containing self-lubricating bearings, which allow the piston rod to be lubricated without the need for oil;

2. Durability: The cylinder body is made of high-quality stainless steel and hard alumina alloy material, and the front and rear end caps are treated with anodized hard oxidation, which not only has wear and corrosion resistance, but also has a compact and exquisite appearance;

3. Adjustable buffering: In addition to fixed buffering, this product also has adjustable buffering at the cylinder terminal, which ensures smooth and impact free cylinder reversing;

4. Diversity of installation forms: Various installation accessories are available for customers to choose according to their usage requirements;

5. High temperature resistance: High temperature sealing materials can be used to ensure that the cylinder works normally under high temperature conditions of 180 ° C;

6. Magnetic attachment: The cylinder piston is equipped with a magnet, which can trigger the induction switch installed on the cylinder to sense the movement position of the cylinder;

7. Adjustable stroke: The piston rod end is equipped with an adjustable nut, which allows the cylinder to be adjusted within its stroke range;

8. Derivative diversity: A variety of non-standard products can be derived from the original to meet various usage requirements of customers.

2、 Selection of SMC cylinders in Japan

The selection of SMC cylinders in Japan should be based on work requirements and conditions, and the correct type of cylinder should be chosen. Taking a single piston rod double acting cylinder as an example, the selection steps of the cylinder are introduced below.

1. Cylinder diameter. Determine the output force of the cylinder based on the magnitude of the cylinder load force, and calculate the cylinder diameter accordingly.

2. The stroke of the cylinder. The stroke of the cylinder is related to the occasion of use and the stroke of the mechanism, but full stroke is generally not selected.

3. Strength and stability calculation of cylinder

4. The installation form of the cylinder. The installation form of the cylinder is determined by factors such as installation location and usage purpose. Generally, fixed cylinders are used. When continuous rotation with the working mechanism is required, a rotary cylinder should be selected. When the piston rod needs to swing in a circular arc in addition to linear motion, a pin type cylinder is selected. When there are special requirements, corresponding special cylinders should be selected.

5. Buffer device for cylinder. Determine whether a buffer device should be used based on the speed of the piston.

6. Magnetic switch. When the pneumatic system adopts electrical control mode, cylinders with magnetic switches can be selected.

7. Other requirements. If the cylinder operates in harsh environments such as dust, a dust cover should be installed at the protruding end of the piston rod. When no pollution is required, oil-free or oil-free lubricated cylinders should be selected.