The volume of oil required for a cylinder (cylinder oil capacity) is equal to the effective area of the cylinder times the stroke***
* **these are theoretical examples and do not take into account the compressibility of oil under high pressure

### Cylinder Oil Capacity** = Cylinder Effective Area x Cylinder Stroke**

**Example 1:**

An * RC158* cylinder has an effective area of 20.3 cm² and a stroke of 200 mm.
How much oil will be required?

**Oil Capacity**= 20.3 cm² x 20 cm = 406 cm³

**Example 2:**

An * RC5013* cylinder has an effective area of 71,2 cm² and a stroke of 320 mm.
How much oil will be required?

**Oil Capacity**= 71.2 cm² x 32 cm = 2,278.4 cm³

**Example 3:**

An * RC10010* cylinder has an effective area of 133.3 cm² and a stroke of 260 mm.
How much oil will be required?

**Oil Capacity**= 133.3 cm² x 26 cm = 3,466 cm³

**Example 4:**

Four * RC308* cylinders are being used together, each with an effective area of 42.1 cm² and a stroke of 209 mm.
How much oil will be required?

**Oil Capacity**= (4 x 42.1 cm²) x 20.9 cm = 3,520 cm³ (Remember, since four cylinders are used together, the area for one cylinder must be multiplied by the number of cylinders used).