These lightweight, easy-to-use crimpers provide lab-scale or small production scale performance at a moderate cost, filling the gap between hand-operated machines and fully automatic equipment. They operate on standard laboratory air supply of 45 to 60 psi. Bottles and aluminum seals are automatically aligned to eliminate partially crimped seals. Exhaust air is passed through the foot-operated valve so the crimper can be used inside a sterile hood. A complete unit consists of a crimper, a foot ...