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60 Years Ago: Two Pump System Provides Synchronized Motion

High pressure, low slip, radial piston pumps with a gear pump powered stroking mechanism supply equal volumes to each of the two car dumping jack cylinders. The circuit has safety and control features...

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Why Risk It with Copycat Hydraulics?

Bob Nemeth, Parts & Service Director, Americas, Danfoss Power Solutions Such components may lack the original manufacturer’s proven quality, performance, and reliability, which makes genuine...

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New HPU Gives WWII Sub New Life

Joseph Kane, Bosch Rexroth A team restoring a vintage submarine docked at San Francisco’s Fisherman’s Wharf wanted a more efficient and easier-to-operate system for operating a periscope, torpedo...

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Electrically Powered Gear Pump Slashes Fuel Consumption

Ray Scroggins, Scroggins Associates Using batteries to drive an electric motor, the hydraulic power unit of Versalift bucket lifts run cleaner and quieter, while resulting in significant fuel savings...

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Hydraulic Traction Circuit Treats Golf-Course Greens Gently

The Toro Co. has designed and patented a hydraulic traction circuit that enables a groundskeeper to easily manicure golf greens with the speed and convenience of a riding mower. The triplex...

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Direct-Drive Radial-Piston Motor

The Hydre-Mac direct-drive radial-piston motor handles variable-speed applications requiring less energy to deliver more power. The low-speed, high-torque motor, featuring a cam-lobe read more

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Variable-Speed Pump Drive

​Sytronix SVP 7010 variable speed pump drive offers a performance range up to 120 kW. It uses pre-programmed features to provide high control accuracyread more

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Hydraulic Die-Cushion Drive Can Save Significant Energy on Presses

Voith’s CSH die-cushion drive, which consists of a servopump and a double-acting die cushion mounted underneath the bolster plate. needs no valves and significantly reduces energy consumption of the...

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The Big 5 for Electric Motors

Five important points about specifying an electric motor to drive a hydraulic pump. Understanding the basic parameters of electric motors is key when specifying one for a particular HPU application,...

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Hydraulics in the Aftermath of Pearl Harbor

Quick action using hydraulics helped right many of the warships damaging in the attack on Pearl Harbor.The Hitch Postread more

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Deep Seas Push Hydraulic-System Boundaries

Royce Gerngross and Alexandre Orth, PhD Industries expand efforts into the subsea terrain to acquire vital resources needed to meet global demand. Taking of advantage of hydraulic systems, industries...

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Pump Controls Optimize HPU Performance

William Fischer, The Oilgear Co. Through the proper selection of variable-volume pump control, the hydraulic system engineer can design a circuit that will offer the best performance with the most...

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Tried & True Ways of Dealing with Air in Hydraulic Fluid

Symptoms typical of an aerated hydraulic system plagued the F-104 aircraft for years. Aeration was caused by system components with built-in chambers and passages where free air (bubbles) collected...

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Troubleshooting Challenge: Unexpected pressure loss while testing a new...

In preparing for a retest of a hydraulic power unit experiencing quick pressure drops/rises, the oil was drained from the reservoir and panels removed, only to discover construction debris and beads of...

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Ohio Town Welcomes First Hydraulic Hybrid Garbage Trucks

Ohio town seizes opportunity from disaster Shortly after midnight on February 15, 2014, firefighters in Oberlin, Ohio responded to a fire at the city’s refuse vehicle garage. The building housed all...

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System Simplifies Hydraulic Tank Cleaning

The versatility of the Super Caddy 3 makes it useful for any shop or large fleet operation. Super Caddy 3 is a service tool that gives dealers and service center the ability to clean a hydraulic...

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Vane-Type Hydraulic Motors Ideal for High-Pressure Applications

Staff Series M motors come in four sizes, with standard or heavy-duty bearings for high-speed (to 4,000 rpm), high-pressure applications. read more

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Hydraulic Drives on the Move

Proven in heavy-vehicle applications, where they have reduced fuel consumption and saved on brakes, hydraulic hybrid drives may find their way into smaller vehicles. Vehicles that require a lot of...

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Radial-Piston Pumps Handle High Pressure

BRK 11/12 radial piston pumps feature long economic lifetimes and unique characteristics for loading, lifting, and advancing. Pumps in the family can withstand continuous operating pressures between...

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Pumps Power Railcar Mover

When an OEM in the rail industry needed a new pump to replace a discontinued design, they were right on track in finding a simpler and more-compact solution. When an OEM in the rail industry needed a...

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