ISO 6099:2009 pdf download – Fluid power systems and components — Cylinders — Identification code for mounting dimensions and mounting types.
1 Scope This International Standard establishes a convention for the identification of mounting dimensions and types used in the mounting of fluid power cylinders. It specifies a code for identifying cylinder mounting, envelope, accessory and connector dimensions, and for cylinder mounting and accessory types. This International Standard does not represent a standard list of all fluid power cylinder mounting and accessory types. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5598, Fluid power systems and components — Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. 4 Identification code for rod end types 4.1 Reference points and letter codes 4.1.1 General 4.1.1.1 First point of reference Axial dimensions are determined from a reference point that is the same for all cylinders, whatever their mounting method. This theoretical reference point (TRP) is the point of force transfer from the piston rod to the movable element. This point of reference (TRP) is named the first TRP. 4.1.1.2 Second point of reference For double rod cylinders, the second TRP is defined by the letter code ZM++ directly attached to the first point of TRP (see Figure 8). This second TRP is used for accessories on the second rod side.
5 Letter code for identifying cylinder mounting, envelope and accessory dimensions 5.1 General The code for identifying cylinder mounting, envelope and accessory dimensions is composed of one or two letters and, in some cases, the signs: +, ++ or +/. The meaning of these letters and signs is given in 5.2 to 5.5. 5.2 Letter Z Any group of two letters beginning with Z identifies a longitudinal envelope dimension. 5.3 Letter U Any group of two letters beginning with U identifies an end view envelope dimension. 5.4 Letters W, X, Y, Z Any group of two letters beginning with W, X, Y or Z identifies a dimension end from the reference point. 5.5 Signs The sign + after letters means that the stroke is to be added: ZJ + = ZJ plus stroke. The sign ++ after letters means that twice the stroke is to be added: ZM ++ = ZM plus twice the stroke. The sign +/ after letters means that half the stroke is to be added: XV +/ = XV plus half the stroke. 5.6 Dimensioning The general dimensions are shown in Figure 8.