Special Cylinder Modifications

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Port Size Options

Standard cylinders are equipped with NPTF taper pipe thread ports usually of the largest size that will fit into either the front or rear end cap.
Ports smaller than standard will be supplied upon request in all models at no additional cost.
Oversize ports, either NPTF or SAE straight thread style one size larger than standard may be ordered, but a construction modification may be necessary. If the port cannot be placed directly in the end cap, a welded extension that protrudes from the head surface housing the port will be attached.

Use of an oversize port does not insure that increased flow volume can enter the cylinder without restriction. Component sizes not subject to alteration may limit internal flow capabilities, especially when cushions are included. Cylinders designed to have oversize ports with “full flow” capability may be ordered, but special construction necessary may alter basic envelope dimensions..

Non-Rotating Piston Rod

Internal modifications that prevent the piston rod from rotating during operation may be ordered as a construction feature with restrictions on model availability and length of stroke.
A guide rod anchored in the center of the rear end cap slides through a mating sleeve fixed within a hollow area in the piston rod preventing rotary motion.
A minimum rod diameter of 1.000 inch is necessary and inclusion of a blind end cushion is not possible without modifications affecting basic envelope dimensions.
The non-rotating feature is not designed to support or pre- vent rotation resulting from externally applied offset loads. The function of this feature is to prevent the inherent rotation that will occur when the cylinder is operated with an unguided rod end. Consult Lynair, Inc. for additional information when this feature is desired.