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"We don't repair cylinders, we REBUILD them!"

-Jim Palmer, Founder

We rebuild any and all types of hydraulic and pneumatic cylinders as well as provide brand new OEM and custom designed cylinders for your application.  Please see below for all the great cylinder products we offer.  Contact us to learn more.


We are proud to offer the following lines of OEM, NFPA, and Custom Designed Cylinders.  Please contact us for all your new hydraulic & pneumatic cylinder needs.  We would love to partner with you on your next project!


  • Glassport Cylinder Works cylinders are designed and built for heavy duty "Mill Type" application in either air or hydraulic service.  

  • Standard Glassport Mill-Type Cylinders are available in various mounting styles.                 

  • Pressure ratings of:  200 PSI Air, 1000, 2000, 3000 & 5000 PSI Hydraulic.       

  • Available in standard Bore sizes 2 through 20 inches. Metric and Custom designs can also be specified.  

  • Only the highest quality materials and strictest machining tolerances are acceptable in every Glassport Cylinder.

  • A division of Tri-State Hydraulics, Inc.     


From Lynair, Inc., the Cylinder Specialists

Welcome to Lynair, Inc. the best place on the web for all of your industrial cylinder needs. Since our inception in September 30, 1948, Lynair has been committed to supplying cylinders of unsurpassed quality. The rugged design of Lynair cylinders has been proven in the toughest environments, including the steel, foundry, and sawmill industries. Add to this Lynair’s excellent delivery and competitive price and you have the best value the industry has to offer.



What we stand for:

Each customer is individual!

We devote ourselves to the particular requirements and wishes of each individual customer. You will speak to experienced and dedicated employees who will listen to what you want and competently advise you.

Quality is of the utmost importance!

Quality is the result of the committed and reliable actions of all participants in the value-added chain, from the project manager via the technicians to production, quality checking/control and logistics.

We will create a solution for your application!

We develop the best solution for our customers in conjunction with them and utilise our application experience which spans 50 years in the process. We create a novel, individual solution in cooperation with our customers and rely on tried-and-tested, cost-effective solutions, optimised for your application.

Constancy is advantageous!

We can offer you contact persons who have been in post for many years in order to facilitate the competent understanding of your application. Our know-how is continually developed and improved thanks to ongoing training. 


From Lehigh Fluid Power

In the late forties, Lehigh, Inc. of Easton, Pennsylvania, a large malleable iron foundry and munitions maker, formed the Air Control Division for the prime purpose of manufacturing the old casting style of hand valves, panel-mounted combinations of valve and F.R.L. units similar to the Logansport type which were quite popular during the post World War II period.

As a foundry type of company, the in-plant use of air and air cylinders was extensive. It was in that atmosphere of dirty, contaminated air, corrosive foundry fumes and abrasive particles that the need for a better air cylinder became evident. Additionally, the current design of lubricators offered relatively inefficient downstream lubrication, and a more efficient method of providing cylinder lubrication was desperately needed. (Note: Lubricators haven’t improved much over time and are still a source of neglect and maintenance headaches.)

It was at this time (over 55 years ago) that the Lehigh self-lubricated air cylinder with an internal reservoir was conceived by a brilliant engineer named Charlie Keller. Around the same time, the Lehigh slide valve was developed for air use as a modification of an earlier Lehigh design for air conditioning defrost valves.

Awareness of the unique air cylinder spread by word-of-mouth, and Lehigh began to receive orders.

The need for a permanently lubricated, non-polluting air cylinder spread slowly, since air pollution was not considered a major problem until the 1980’s. Additionally, most air equipment used in conjunction with cylinders required lubricators.

During these years Lehigh also developed the first dynamic lip cushion seal principle. Independently, another cylinder manufacturer developed the identical cushion design and applied for and received the patent. However, both companies agreed that both companies would use the patent, since Lehigh proved prior disclosure date. Since the patent has long expired, most cylinder companies are now using this superior concept instead of the old type requiring ball checks and springs.

In 1964, Lehigh, Inc. spun off the Air Control Division as Lehigh Fluid Power, Inc. and sold the rest of their divisions of foundry, air conditioning compressors, vending machines, and material handling, with the major purchase being the foundry bought by the Victaulic Company of America.

Lehigh Fluid Power, Inc. continued to use the manufacturing and office space of the Easton facility until 1970. At that time, the operation was moved to our current facility in Lambertville, New Jersey.

Ownership of the company changed in 1977 when two longtime friends from Boston and their sons purchased the company. The primary interest in Lehigh evolved from John Taplin, the founder of Bellofram Corporation, as a result of his long association with the Fluid Power Industry.

In 1983, Lehigh purchased state of the art CNC machinery which added new dimensions to the manufacturing of our cylinder component parts. By 1985 we computerized our inventory control, scheduling, and cost accounting to further decrease delivery time and increase production.

Since 1990 Lehigh has focused on special engineered applications. We have supported this thrust with additional engineering personnel. Special applications include: stainless steel, nickel plated or bronze cylinders, boosters, and air/oil tanks.

A major expansion of our manufacturing and warehousing facilities was completed in January 1997. Additional investment in capital equipment and plant facilities is ongoing.

In 2012, Lehigh was purchased by two long time employees of the company, providing our customers the confidence in the company’s long history of product support and continued innovation.

In March 2015 Lehigh Fluid Power, Inc. purchased the assets of Ortman Fluid Power from Quincy Compressor LLC. Ortman was incorporated and became a wholly owned subsidiary of Lehigh Fluid Power and manufactures a full line of NFPA cylinders in Quincy Illinois. The companies have complementary product lines and are able to support customers with a tremendous array of actuators via distribution and direct sales.


From Ortman Fluid Power

For 65 years, Ortman Fluid Power has manufactured a variety of hydraulic cylinders, pneumatic cylinders, valve actuators, air-oil intensifying boosters, and oil tanks to meet your linear actuation and pressure boosting needs. 

We use state of the art CNC machinery to manufacture each cylinder, valve actuator, booster, and tank component in Quincy, Illinois.  This manufacturing process allows for 100% top quality, with a workforce of over 200 years combined experience. 

Wherever you are, our coast-to-coast distribution centers is nearby to quickly fill your specific hydraulic and/or pneumatic application needs. 

Custom design requirements needed for your actuator applications.  Our design team will work with you, using solid model software, to meet your cylinder design requirements.

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