Square groove insertion type freebear unit AFU-3836-4P Series By supplying compressed air, the freebears built in individual pistons rise simultaneously. By processing a square groove on the machine bed at the time of mounting, it is possible to convey and position jigs, molds and workpieces. （Lowered by means of mold weight or forced exhaust） Sizes other than shown below are also available.Please specify the details in the inquiry sheet. Connection dimension diagram Calculation formula of full length A＝25＋（Sum of L1）＋（Number of connections）