When compressed hydraulic fluid engages a piston face and attached rod, it generates linear force and motion greatly surpassing the initial input force. Pumps and cylinders of this nature create tens of tons of work force from even small hydraulic cylinders. For this reason, these hydraulic devices and the pistons essential to their operation are vital to productivity in a number of industries. Read More…
Thunder Bay Hydraulics Ltd.Thunder Bay, ON | 807-623-3151
Based in Thunder Bay, Ontario, Thunder Bay Hydraulics Ltd. has been providing hydraulic and pneumatic components to the industrial, forestry and mining industries since 1969. We have an outstanding reputation for providing quality products and services, continually meeting the changing needs of our customers with competence and efficiency.$$$
Texas Hydraulics, Inc.Temple, TX | 254-778-4701
Texas Hydraulics gives OEMs cylinder solutions that maximize competitive edge with optimal design at best value – superior client interface & unsurpassed engineering as a custom manufacturer for over 40 years. Many critical industries rely on THI’s diverse line of welded hydraulic cylinders: construction grade, integrated, telescopic, piggy-back, standard, position sensing & valve integrated.$$$
Ligon Industries, LLCBirmingham, AL | 205-322-3302
Ligon Industries, LLC along with our affiliates Ligon Capital, LLC and Ligon Holdings, LLC (“Ligon”) is a privately owned manufacturing company that was formed in January 1999 and is based in Birmingham, Alabama. Our hydraulic fluid cylinder companies manufacture a variety of small bore to large bore, welded hydraulic and pneumatic cylinders that are sold to OEMs for installation in their...$$$
Milwaukee CylinderCudahy, WI | 414-769-9700
For over 60 years, Milwaukee Cylinder has been known as the company where “Specials are Our Standard”. We work directly with customers to solve application needs. Our accessible engineering expertise, high quality standard and specialty cylinders and unmatched customer service are available to you. Our worldwide sales and distribution network provides local support wherever you or your...$$$
Hydraulic Pistons Manufacturers List
Hydraulic pistons are common in agriculture, construction, military, machining, automotive, oil and gas, aerospace and robotics industries among others. In these applications the hydraulic pistons are designed to lift, turn, tilt, press, steer, pull and push heavy machine components and any attached loads. While the pistons and attached rods offer only linear motion, fittings attached to the exposed end of the rod allow for angular motion as well. With this heightened applicability, these mechanisms are found in such varied equipment as elevators, excavators, robotic arms, power steering, brakes, jacks and more.
Hydraulic pistons are composed of three main parts. The body, or face of the piston, is the cylindrical disc that fits precisely in the cross section of the cylinder barrel. Attached to the piston is the piston rod. This is the element that is housed partially within the barrel, but extends beyond the cylinder where the opposite end is attached to the machine components and work loads to be set into motion. The third and final component is the seal. There are actually several seals around both the piston face and rod.
The outer circumference of the piston is often machined with grooves where elastomeric or metal seals are placed. Seals, made of graphite, nitrile rubber, viton and other high temperature polymers, are also found around the cylinder head where the rod moves in and out of the barrel. These seals ensure that pressurized hydraulic fluids will not leak into, out of or from one compartment to another as this would cause a loss of pressure resulting in decreased functionality and productivity.
To further protect against leaks, all components of the hydraulic piston must be compatible with the specific fluid in use. Mineral, oil, ether or water composites are the most common solutions. Durable metals are often used to create the piston face and rod which must also withstand the wear of continued use and the friction inherent in movement.
Bronze, brass, steel, stainless steel, iron and nickel alloys are common materials. The cold-rolled rods are often chrome-plated for further protection before being attached to the piston body via threading or welding. Durable ceramics such as silicon carbide and alumina are sometimes used as well.