● These swing clamps are used when it is required to keep the fixture workpiece area free of straps and clamping components for unrestricted workpiece loading and un-loading. ● This pneumatic clamping element is a pull type cylinder, There are five standard sizes, and for each size two versions of standard clamping arms,mounting of these clamping arms at any angle within 360° ● Please don't exceed 1.5 times of the original length, if it is necessary to increase the length of the clamping arm. ● Suggested to install a flow control valve protect cylinder barrel and internal components against fretting wear.