Profile: Peninsular Cylinder Co., Inc is an ISO 9001: 2000 registered company. All Peninsular cylinders, cylinder accessories, pneumatic radial motion clamps and pneumatic thrusters are manufactured to either NFPA or metric dimensional standards. Our peninsular mill series cylinders incorporate state-of-the-art design features that are fabricated to very strict tolerance specifications from the highest quality of materials available. We offer decell cylinders, which are the rapid advance and retract pneumatic soft touch system.