Mary C. Gannon

Associate Editor
Penton Media

Mary joined Hydraulics & Pneumatics in 2005. She graduated from Boston University’s
College of Communication in 1998 with a BA in Journalism. She began her career as a business reporter at a daily newspaper in Greater Cleveland. Prior to joining the H&P staff, she worked in public relations.

Articles by Mary C. Gannon
Hydraulic hose crimper
S8i/S10i ecoline 2-in. hydraulic workshop hose crimper doubles as a 4-in. industrial crimping machine. Large opening allows crimping of elbow fittings easily, without removal of dies.
ISO released two new technical standards

Two new technical documents have recently been published from ISO and are now available from the National Fluid Power Association (NFPA).

Coal Prep 2013 increases size, breadth of event

Coal Prep, the only annual trade show and conference in the U.S. dedicated to coal preparation and processing, and the Kentucky Coal Association (KCA), announced on Feb. 14 that they will partner to launch the "KCA Symposium," a new one-day forum focused on delivering more business intelligence and insights for coal preparation and mining professionals during the Coal Prep International Exhibition and Conference 2013, April 29 - May 2 in Lexington, Ky.

New certification tests released by IFPS
The International Fluid Power Society (IFPS) has released newly revised Mobile Hydraulic Mechanic (MHM), Mobile Hydraulic Technician (MHT), and Connector and Conductor (CC) Certification Tests including new study manuals for each certification. Certification requires successful completion of a three-hour written and a three-hour job performance (hands-on) test. IFPS Members may download complimentary study manuals; non-members may purchase the manuals.
Miniature encoders
TRD-MX Series of Koyo miniature encoders provides a cost-effective solution for size-limited applications. Light-duty encoders feature a small body with 25-mm diameter and 29-mm depth. Constructed with a 4-mm diameter solid shaft, they offer resolutions from 100 to 1024 pulses/rev.
Milwaukee Fluid Power Conference & Expo, May 2008

Here's just a few pictures I took when we last visited Milwaukee for our Fluid Power Conference & Expo, back in the spring on 2008. We will be returning to that great city June 11-12, hosting the event the Milwaukee School of Engineering.

Custom hydraulic reservoirs
Aluminized steel hydraulic oil reservoirs and fuel tanks for off-road and specialty vehicles used in agricultural, construction, and other utility equipment combine corrosion resistance of aluminum with structural strength (and lower cost) of steel.
Spiral hydraulic hose
Alfagomma Flexor spiral hydraulic hoses are available in sizes from 1⁄4 to 2 in. Four-wire -12 is rated for maximum working pressures from 17.5 to 28 MPa (2500 to 4000 psi). Four-wire 4SP is rated for pressures of 28 to 45 MPa (4000 to 6550) psi. Four-wire 4SH is rated for maximum working pressure of 25 to 42 MPa (3650 to 6000 psi). Four- or six-wire -13 is rated for maximum working pressures of 35 MPa (5000 psi).
Stainless-steel air cylinders

NITRA pneumatic product line now includes F-Series air cylinders for wash-down applications. Non-repairable round body air cylinders are interchangeable with other brands. Double-acting cylinders have a 250 psi operating pressure and are constructed with corrosion resistant 300 Series stainless steel and Teflon-based rod and pivot bushings. Urethane rod wiper keeps wash-down solutions out of the cylinder. Series includes bore sizes from ¾- to 2 in. and stroke lengths from ½- to 18 in.

Hydrostatic failure traced to contamination

When operators at a John Deere equipment facility in Iowa were experiencing difficulties with the hydrostatic transmission on an excavator, they determined the problem came from the excavator’s hydraulics system. Dirt and debris within the hydraulic system were getting into fluids traveling to the hydrostatic transmission, causing failure and costly down time. The solution seemed simple: clean the hydraulic system’s hose and tube assemblies using a traditional fluid flushing method. After the procedure was completed, the excavator was up and running again.

Learn about safe hydraulics

Gates Corp., Denver, provides an array of online and print items that explore safety and preventive maintenance at its Hydraulic System Safety section at

Spring-wind hose reel
N500 series high-pressure, spring-rewind reel is designed for efficient hydraulic or air hose handling. Heavy-duty spring motor with self-contained rewind power, four-way roller assembly and a declutching arbor prevent against damage from reverse winding.
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