| characteristic: |
| 1. Hydraulic cylinders are divided into several standard external dimension drawings according to their operating pressure, providing users with reference for selection. |
| According to the S-B8354 standard, hydraulic cylinders can be classified into the following specifications based on their operating pressure. |
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Use pressure
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name
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70kgf／cm2(7MPa)
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Low pressure hydraulic cylinder
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140kgf／cm2(14MPa)
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Medium pressure hydraulic cylinder
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210kgf／cm2(2lMPa)
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High pressure hydraulic cylinder
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| Note: (1) Above 210kgf/cm2 and up to 700kgf/cm2, it is called an ultra-high pressure hydraulic cylinder. |
| (2) The British pressure unit is 100 μ bs/in2 (psi)=70 kgf/cm2 |
| (3) JIS new name 7MPa=7Okg f/cm2 |
| Three specifications of 3.70/140/210 tons f/cm2, |
| Please refer to this catalog for detailed size specifications. |
| 210 tons f/cm/2 or above, not listed in this catalog, but our company has the ability to manufacture such ultra-high pressure hydraulic workers. Please contact us for further information. |
| 4. When selecting hydraulic cylinders, in addition to the following basic conditions: (1) inner diameter (2) stroke |
| (3) In addition to using pressure (4) installation types, the following conditions should be carefully selected: |
| (A) When the operating speed of the hydraulic cylinder reaches a certain standard or above after being loaded, a hydraulic cylinder with a buffering device must be selected. When reaching a higher speed, it is necessary |
A deceleration valve needs to be installed outside the hydraulic cylinder.
(B) Carefully select hydraulic oil and oil seals. Different hydraulic oils are suitable for different materials of oil seals to ensure the service life of hydraulic cylinders |
| 5. Our company strictly controls the processing technology for the selection of hydraulic cylinder materials, in addition to following the Japanese JIS-B8354 standard specifications For example, parts |
| The machining dimensional tolerances and geometric tolerances are strictly required based on years of accumulated research and development technology and experience, without any carelessness. All kinds of hydraulic cylinders |
| It has the advantages of low friction and high lifespan. |
| 6. The standard hydraulic cylinder steel pipe material is carbon steel for mechanical construction, marked STKMl3C. |
| After seamless cold drawing and high-precision oblique cross boring, the inner diameter tolerance is between H7-H9 and the surface roughness is between 0.3-0.8s, |
| The tensile strength is above 52kgf/mm2. |
