German FESTO cylinder DSEU series DSNU-20-50-P-A

Brand

FESTO/Germany

Action Method

Other

Application Areas

Petroleum, Mining, Energy, Electrical, General

FESTO Cylinders (Germany)

FESTO cylinders are pneumatic actuators that convert the pressure energy of compressed gas into mechanical cylinder energy in pneumatic transmission. Cylinders come in two types: reciprocating linear motion and reciprocating oscillating motion (see figure). Cylinders that reciprocate linear motion can be further divided into four types: single-acting cylinders, double-acting cylinders, diaphragm cylinders, and impact cylinders.

① Single-acting cylinder: Has a piston rod at only one end. Air is supplied from one side of the piston to generate pressure, which pushes the piston to extend. It returns by a spring or its own weight.

② Double-acting cylinder: Air is alternately supplied from both sides of the piston, outputting force in one or two directions.

③ Diaphragm cylinder: Uses a diaphragm instead of a piston, outputting force in only one direction, and returns with a spring. It has good sealing performance but a 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 the piston's high-speed (10-20 m/s) motion, thereby performing work.

⑤ Rodless cylinder: A general term for cylinders without a piston rod. There are two main categories: magnetic cylinders and cable cylinders.

A cylinder that reciprocates is called a swing cylinder. Its internal cavity is divided into two by vanes, and air is alternately supplied to the two cavities, causing the output shaft to swing. The swing angle is less than 280°. Other types include rotary cylinders, gas-hydraulic damping cylinders, and stepping cylinders.

The German FESTO cylinder is a cylindrical metal component that guides the piston in a linear reciprocating motion within the cylinder. Air in the engine cylinder converts thermal energy into mechanical energy through expansion; gas in the compressor cylinder is compressed by the piston, increasing its pressure.

FESTO's quality encompasses many aspects, primarily reflected in its intelligent and easy-to-operate product design, long product lifespan, continuous efficiency optimization, and global reach. As a German company specializing in pneumatic components and automation systems, FESTO has a history of nearly a century, with a sales and service network spanning over 170 countries and serving more than 300,000 customers. Our company is a comprehensive distributor of German FESTO pneumatic products, offering low prices and short delivery times. Welcome to purchase!

【Detailed Description】

German FESTO Cylinder Solutions

1. For mating surfaces with significant cylinder deformation or severe leakage, use the method of grinding and scraping the mating surfaces.

If the deformation of the upper cylinder mating surface is within 0.05mm, use the upper cylinder mating surface as a reference surface. Apply red lead or imprint blue paper on the lower cylinder mating surface and scrape the lower cylinder according to the marks. If the deformation of the upper cylinder mating surface is large, apply red lead to the upper cylinder and use a large straightedge to grind marks, flattening the upper cylinder. Alternatively, use machining methods to level the upper cylinder mating surface, then use the upper cylinder as a reference to scrape the lower cylinder mating surface. There are generally two methods for scraping the mating surfaces of cylinders:

⑴ For loose bolts, use a jack to slightly move the upper cylinder back and forth, scraping according to the coloring of the red lead on the mating surface of the lower cylinder. This method is suitable for high-pressure cylinders with strong structural rigidity.

⑵ For tight bolts, check the tightness of the mating surface with a feeler gauge, measure the value and the indentation, and then scrape the mating surface. This method can eliminate the influence of cylinder sag on the clearance.

2. Use appropriate cylinder sealing materials

Because there are no unified national or industry standards for turbine cylinder sealants, the raw materials and formulas vary, resulting in inconsistent product quality. When selecting turbine cylinder sealants, choose reputable manufacturers with guaranteed product quality to ensure the tightness of the cylinder after repair.

3. Local welding repair method

Since the cylinder mating surfaces are eroded or corroded by steam, use appropriate welding rods to fill the grooves, and use a flat plate or straightedge to create marks, scraping the weld bead so that it is on the same plane as the mating surface. When the cylinder mating surface is significantly deformed or leaks severely, weld one or two 10-20mm wide sealing strips to the mating surface of the lower cylinder to eliminate the gap. Then, measure with a straightedge or by attaching the cylinder to the surface, apply red lead, and scrape until the gap is eliminated. This process is quite simple: preheat the cylinder to 150℃ before welding, then perform segmented back welding or skip welding at room temperature. Use austenitic welding rods, such as A407 or A412. After welding, cover with asbestos cloth for insulation and slow cooling. After cooling to room temperature, grind and scrape.

4. Coating or Spraying the Cylinder Mating Surface

When there is a large area of ​​steam leakage at the cylinder mating surface, with a gap of approximately 0.50mm, a coating process can be used to reduce the amount of scraping work. Use the cylinder as the anode and the coating tool as the cathode. Repeatedly apply an electrolyte solution to the cylinder mating surface. The thickness of the coating depends on the size of the gap at the cylinder mating surface, and the type of coating depends on the cylinder material and the scraping process. Spray coating is a method of applying a coating to a cylinder surface using a specialized high-temperature flame torch. The powder is heated to a molten or plastic state and then sprayed onto the treated surface to form a coating with the desired properties. Its advantages include simple equipment, convenient operation, a strong coating, and a cylinder temperature of only 70℃-80℃ after spraying, preventing cylinder deformation. It also provides a heat-resistant, wear-resistant, and corrosion-resistant coating. It is important to note that the cylinder surface must be sanded, degreased, and roughened before both coating and spraying. After coating and spraying, the coating must be scraped to ensure a tight bond.

Product Code Model Product Name

543111 DNCE-32-100-LS-1 DNCE-32-100-LS-1 Electric-Pneumatic Cylinder

543112 DNCE-32-200-LS-15-Q Electric-Pneumatic Cylinder

543113 DNCE-32-300-LS-15-Q Electric-Pneumatic Cylinder

543114 DNCE-32-400-LS-15-Q Electric-Pneumatic Cylinder

543115 DNCE-32-100-BS-3-Q Electric-Pneumatic Cylinder

543116 DNCE-32-200-BS-3-Q Electric-Pneumatic Cylinder

543117 DNCE-32-300-BS-3-Q Electric-Pneumatic Cylinder

543118 DNCE-32-400-BS-3-Q Electric-Pneumatic Cylinder

188580 Double-Acting Cylinder DSEU-25-200-P-A

188581 Double-Acting Cylinder DSEU-25-250-P-A

188582 Double-Acting Cylinder DSEU-25-320-P-A

188583 Double-Acting Cylinder DSEU-32-25-P-A

188584 Double-Acting Cylinder DSEU-32-40-P-A

188585 Double-Acting Cylinder DSEU-32-50-P-A

188586 Double-Acting Cylinder DSEU-32-80-P-A

188587 Double-Acting Cylinder DSEU-32-100-P-A

188588 Double-Acting Cylinder DSEU-32-125-P-A

188589 Double-acting cylinder DSEU-32-160-P-A

188590 Double-acting cylinder DSEU-32-200-P-A

188591 Double-acting cylinder DSEU-32-250-P-A

188592 Double-acting cylinder DSEU-32-320-P-A

188593 Double-acting cylinder DSEU-40-25-P-A

188594 Double-acting cylinder DSEU-40-40-P-A

188595 Double-acting cylinder DSEU-40-50-P-A

188596 Double-acting cylinder DSEU-40-80-P-A

188606 Double-acting cylinder DSEU-50-80-P-A

188607 Double-acting cylinder DSEU-50-100-P-A

188608 Double-acting cylinder DSEU-50-125-P-A

188609 Double-acting cylinder DSEU-50-160-P-A

188610 Double-acting cylinder DSEU-50-200-P-A

188611 Double-acting cylinder DSEU-50-250-P-A

188612 Double-acting cylinder DSEU-50-320-P-A

188613 Double-acting cylinder DSEU-63-25-P-A

188614 Double-acting cylinder DSEU-63-40-P-A

188615 Double-acting cylinder DSEU-63-50-P-A

188616 Double-acting cylinder DSEU-63-80-P-A

188617 Double-acting cylinder DSEU-63-100-P-A

Our company mainly deals in European and American brands and can source brands from any European country. For example, our advantageous German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, Vickers, Helón (Norgren)

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi