HUMPHREY BLOCK CYLINDERS NON-ROTATING HJDAL, HJDALS
Humphrey Block Cylinders non-rotating HJDAL, HJDALS are double acting compact cylinders with a square rod to prevent rotation. These cylinders are ideal where the orientation of rod attachments must remain the same with every stroke. Available bore sizes are 20mm, 25mm, 32mm, 40mm, 50mm, & 63mm. Maximum stroke is 4″ in the 63mm bore size.