J21 series press is the practical type open back press with fixed bed.The features:the boby is left/right open type (i.e.C type body) and ihe working table is open in three sides.It is convenient to load and unload die set.The operation is easy.The products offer a good condition for mechanization and automaticzation.so they are used widely.They are the main equipments for sheet-metal punching which can be used in the process of punching,blanking,trimming, bending, shallow stretching and forming.The press are widely applicable for such fields as national defence,aviation,automobile,tractor,motor electrical appliance, instruments,medical apparatus and instruments,hardware for daily use,etc.Among them,Model JC21-160 presses adopt pneumatic friction clutch and brake,and the slide block can stop at any position.Model J21-63A,J2I-80A, JD21-63A,JD2I-8OA,JD21-100A,JD21-I25A are equiped with emergency brake mechanism so that their slideblock can stop at any poslion within 0and135.Models with the letter "D" adopt the double key structure,capable of over coming rebound. Main specifications

General Open Back Press with Fixed Bed