Parker is the world's largest supplier of hydraulic cylinders and parts for industrial applications. Parker manufactures a diverse range of standard and special tie rod, roundline and 'mill' type cylinders to suit all types of industrial cylinder applications. Our cylinders meet every major industry standard, with other certifications available upon request. All Parker hydraulic cylinders and parts are designed to deliver long, efficient service with low maintenance requirements, guaranteeing high productivity throughout the life of the product.