Magazine Articles

Controlling Two or More Hydraulic Actuators

By Peter Nachtwey in Hydraulics & Pneumatics

Feburary 16, 2021

There are several methods for coordinating the motion of two or more actuators.

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Modeling Pressure Changes in Hydraulic Systems

By Peter Nachtwey in Hydraulics & Pneumatics

Feburary 15, 2021

Here’s the math behind pressure changes in hydraulics.

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Sizing Accumulators and HPUs for a Cylinder’s Sinusoidal Motion

By Peter Nachtwey in Hydraulics & Pneumatics

December 15, 2020

The math might be complex, but it’s straightforward.

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Advanced Hydraulics and Controls Make Calendering More Precise and Efficient

By Stephen Mraz in Hydraulics & Pneumatics

November 18, 2020

The precision and stability of the hydraulics and controls make them a more accurate and reliable way to handle calendering.

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Controlling Hydraulic Pressure

By Peter Nachtwey in Hydraulics & Pneumatics

November 16, 2020

Pressure control is achieved in hydraulic systems by metering the flow of a fluid into or out of a constrained volume.

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How Bode Plots Describe Servo Valves Specifications

By Peter Nachtwey in Hydraulics & Pneumatics

August 28, 2020

Engineers should know and understand Bode plots to make the best of their valve decisions.

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Sizing Accumulators for Arbitrary Moves

By Peter Nachtwey in Hydraulics & Pneumatics

July 17, 2020

Straightforward methods of determining how large an accumulator is needed for a given motion profile.

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Sizing Accumulators and HPUs for a Cylinder's Sinusoidal Motion

By Peter Nachtwey in Hydraulics & Pneumatics

May 7, 2020

The math might be complex, but it's straightforward. Three formulas define the parameters: one for the HPU, two for the accumulator.

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Controlling Hydraulic Pressure

By Peter Nachtwey in Hydraulics & Pneumatics

May 1, 2020

Pressure control is achieved in hydraulic systems by metering the flow of a fluid into or out of a constrained volume.

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Hydraulics and Sinusoidal Motion

By Peter Nachtwey in Hydraulics & Pneumatics

May 1, 2020

A sine wave seems like simple motion, but it can put high demands on the actuators and pumps.

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How to handle heavy lifting

By Mike Birschbach in Control Design

June 18, 2020

Flexible hydraulic/electric motion control brings demanding die/mold cart design to completion.

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Multi-Axis Motion Controller Accelerates Gear Testing

By Reid Bollinger in Quality Magazine

April 8, 2020

The testing can be used in a pre-production environment as companies evaluate changes in materials designed to improve the characteristics of end products.

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Press Leveling and Cushion Control: Combining Force and Motion Control

By Peter Nachtwey in Hydraulics & Pneumatics

February 3, 2020

New and retrofit presses can be improved by using electronic controls that simplify setups and changeovers and make better parts.

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Controlling Force—and Managing Expectations, Part 1

By Peter Nachtwey in Hydraulics & Pneumatics

January 13, 2020

The goal is to match kinetic energy of the press to the work required. It's seldom quite that simple.

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Multi-Axis Motion Control Streamlines Sawmill Operation

By Brad Smith in Hydraulics & Pneumatics

December 11, 2019

Today's sawmills must crank out thousands of board feet day after day and make extensive use of hydraulic actuators to transmit high forces and torque. Almost everything runs at high speed, and high product tolerances and unforgiving repeatablity demand dead-on control.

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Multi-axis motion controller synchronises press operation

By Bruce Coons in Hydraulics & Pneumatics UK

November/December 2019

The size of a press is determined by the part face area and the compaction force of the material, but a common requirement is a need for multiple motion axes to accomplish the compression operation.

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Knapheide Saves Costs and Time in Nondestructive Vehicle Testing

By Jason Palmer in Quality Magazine

November 8, 2019

The money saved would otherwise have been spent contracting outside test labs. More recently, Knapheide has been developing test systems in house, shortening the process and improving their ability to test customized product configurations.

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Hydraulic Capacitance and Dead Time

By Peter Nachtwey in Hydraulics & Pneumatics

October 30, 2019

Hydraulic capacitance and dead time are related because they are affected by mounting the valve away from the cylinder.

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Using Open-Loop Control for Diagnostics

By Peter Nachtwey in Hydraulics & Pneumatics

October 15, 2019

Open-loop control is useful during commissioning or when trying to diagnose problems.

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New Life for an Old Saw

By Richard Meyerhoefer in MetalForming Magazine

October 1, 2019

The effect of machine-component obsolescence can be significant, even if the component itself still functions correctly.

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Knapheide saves costs, time by moving vehicle life testing in-house

By Jason Palmer in Truck & Off-Highway Engineering

October 2019

The Knapheide Manufacturing Co. has always sent its products out to be tested, but the cost of farming out the testing process had become excessive. They turned to Delta RMC motion controllers as part of the initiative to bring testing in-house.

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Optimizing Cylinder Size for Precise Control

By Aaron Heinrich in Your World in Motion

Fall 2019

Engineering "rules-of thumb" and idealized approximations can yield safe, functional machines, but they will rarely, if ever, result in the most efficient and effective system.

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Staying on the Grind

By Tim Gessner, Ph.D in Design Engineering

September 25, 2019

An electrohydraulic motion controller gives "feel" to a grinding robot. Clansman saw an opportunity to automate the process with a robotic grinding solution, but they needed a way to supply their robots with force feedback.

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Checking for Cylinder Cavitation Using the VCCM

By Peter Nachtwey in Hydraulics & Pneumatics

September 9, 2019

Cylinder sizing is the most important step when designing a new hydraulic servo system. But how do you determine if the hydraulic cylinder, load, and motion profile will cause cavitation?

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New motion controller increases throughput in Maxi Mill upgrade

By Reid Bollinger in International Forest Industries

August 26, 2019

The Progress team replaced the existing system with a new RMC200 multi-axis electrohydraulic motion controller from Delta Computer Systems.

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Motion controller gives old presses new life

By Bruce Coons in Control Engineering

August 12, 2019

Case study: Retrofit controller on four hydraulic presses used a new programmable logic controller (PLC) to control the moving platen and the levelling cylinders would be controlled by a new electrohydraulic motion controller.

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Cylinder and Valve Sizing

By Peter Nachtwey in Hydraulics & Pneumatics

August 8, 2019

Cylinder sizing is the most important step when designing a new hydraulic servo system. The stroke of the cylinder is usually dictated by the application, and many different combinations of cylinder bore and supply pressure can work. It's just that some combinations work better than others.

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Precise Pressure and Flow Control Improve Wax Injection

By Jason Palmer in Machine Design

July 24, 2019

Molds for investment casting are more accurate and have fewer defects, thanks to flow control over wax injection.

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Avoiding problems in electrohydraulic control systems design

By Jacob Paso in Hydraulics & Pneumatics UK

June 21, 2019

Closed-loop control gives machines great precision to apply force or lift heavy objects or follow very precise motion profiles. Set up incorrectly, however, an electrohydraulic linear motion system can be unstable and cause damage to products or be dangerous to people.

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Choose the correct servo motion control algorithms for your application

By Jacob Paso in Hydraulics & Pneumatics UK

June 7, 2019

There are thousands of different hydraulic motion control applications, and designers must choose the optimum control algorithm to get the best performance out of each application. Sometimes a combination of control methods is required.

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The Valve Flow Constant

By Peter Nachtwey in Hydraulics & Pneumatics

May 10, 2019

A high-quality proportional or servovalve's flow constant is important for matching a valve's size to the cylinder's.

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Hydraulic Servo Control Using a PLC, Part 2

By Peter Nachtwey in Hydraulics & Pneumatics

April 5, 2019

Options for improving the response of motion control using a programmable logic controller.

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PLC vs. Motion Controllers

By Peter Nachtwey in Hydraulics & Pneumatics

March 13, 2019

Some closed-loop motion control applications clearly call for a motion controller, whereas others can get by with using a PLC to close a control loop. Of course, reaching a decision often falls in a gray area.

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Hydraulics Technology is Alive and Well, Thank You

By Peter Nachtwey in Hydraulics & Pneumatics

January 23, 2019

Rumors of fluid power's death have been greatly exaggerated. To the contrary, electronic control and more-sophisticated components have advanced hydraulic power transmission far beyond its state of the art from only a few years ago.

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Going Beyond PID in Hydraulic Motion Control

By Aaron Heinrich in Machine Design

February 6, 2019

Early on, systems relied on basic start/stop and limit switches, but as processing power and speed have increased, electronic industrial system controls have grown to be the more sophisticated option and become ever more capable.

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Cylinder Sizing Considerations for Precision System Control

By Aaron Heinrich in Hydraulics & Pneumatics

December 20, 2018

Avoid the common pitfall of opting for undersized cylinders. Despite careful design and implementation of sophisticated control electronics, fluid power system performance can be degraded by incorrect sizing or physical location of system components.

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Multi-Axis Motion Controller Accelerates Gear Testing

By Reid Bollinger in Tech Briefs

December 1, 2018

Materials testing and characterization is often a lengthy process. It can take more than a year and billions of testing cycles for a manufacturer to characterize the properties of a new metal compound to be used in a critical application such as a component of an automotive or jet engine.

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Motion control for a heavy-duty test stand

By Reid Bollinger in Aerospace Manufacturing and Design

November 30, 2018

Delta Computer Systems' motion solution delivers precise multi-axis control, synchronization in a 17,000 lb swing table test stand.

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Electrohydraulic Controller Excels in Vehicular Testing

By Bruce Coons in Hydraulics & Pneumatics

November 28, 2018

Crush testing of strong heavy structures requires the high force generation of hydraulics and the precise feedback and control of versatile electrohydraulic motion controllers.

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Test Lab Gets It Wrong—On Purpose!

By Alan Hitchcox in Hydraulics & Pneumatics

November 7, 2018

Dealing with the problems of an underdamped hydraulic cylinder test rig. Delta Computer Systems demonstrates tuning of an underdamped system using advanced control algorithms in their RMC motion controllers.

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Closed-Loop Control Enables Precise Press Operation

By Brad Smith in MetalForming Magazine

November 1, 2018

Whether working on a new press or retrofitting a control system to an old press, success often rides on the capabilities of the motion controller.

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Analyzing a Hydraulic System Performance: If You Study It, You Can Improve It

By Tim Gessner, Ph.D in Fluid Power Journal

October 8, 2018

To improve how a hydraulic system works, including reducing the amount of energy it consumes, you need to record and analyze data on how it currently operates and analyze it.

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How Natural Frequency Limits Frequency of Acceleration

By Peter Nachtwey in Hydraulics & Pneumatics

September 24, 2018

The natural frequency of a hydraulic system refers to the system's stiffness. Systems with higher natural frequency are easier to control when accelerating quicker than systems with low natural frequency.

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Avoiding Problems in Electrohydraulic Control Systems Design

By Jacob Paso in Hydraulics & Pneumatics

June 6, 2018

Closed-loop control give machines great precision to apply force, lift heavy objects, or follow very precise motion profiles. Set up incorrectly, however, an electrohydraulic control system can be unstable and cause damage to products or be dangerous to people.

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Engineers at CAPE optimize test-rig performance for roof-crush testing

By Bruce Coons in Truck & Off-Highway Engineering

June 2018

The CAPE roof-crush test rig operates with hydraulic cylinders at each corner of a pressure plate.

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For Highest Performance and Precision, Use Closed-loop Control

By Tim Gessner, Ph.D in Hydraulics & Pneumatics UK

July 12, 2018

The newest electrohydraulic motion controllers can be configured to employ sophisticated predictive algorithms, using inputs from both position and pressure sensors to provide tighter control and smoother operation than was previously possible with hydraulic control systems.

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Delta Computer Systems announces more staff, products, global presence

By Paul Heney in FluidPower World

May 18, 2018

Delta Computer Systems Inc. has announced five new hires as the industrial motion controller supplier expands its product line and its global business footprint.

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A Secret Weapon for Roof-crush Testing

By Bruce Coons in Automotive Engineering

May 2018

Before you crush that bus or racecar chassis, find out how engineers at CAPE are optimizing test-rig performance.

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Tight Rein

By Jason Palmer in FFJournal

March 2018

Aluminum can-forming process streamlined with new press, motion controllers. To get the most out of an upgrade, one has to look at the entire process instead of focusing on individual steps.

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Poetry in Motion

By Bruce Coons in International Forest Industries

February / March 2018

The installation of a coordinated motion-control system has enabled big productivity gains for a Quebec sawmill.

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Electrohydraulic control smooths sawmill performance

By Mary Gannon in FluidPower World

February 21, 2018

When an application calls for high forces and heavy loads, hydraulics is usually the choice, but motion controllers provide the necessary precision and safety.

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Motion Controller Synchronizes Axes in Automotive Panel Press

By Gan Li in Hydraulics & Pneumatics

January 11, 2018

Applying 3,000 tons of force evenly to body panels is challenging enough, but positioning accuracy of 0.05 mm makes the project even more challenging.

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Closed-loop control streamlines aircraft interior structural testing

By Brad Smith in Aerospace Manufacturing and Design

November/December 2017

Lavatory safety ensured by mechanizing manual testing procedure.

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Beware the use of counterbalance valves with electrohydraulic motion controllers

By Peter Nachtwey in Hydraulics & Pneumatics UK

June 16, 2017

Counterbalance valves are used for safety, holding loads and keeping loads from dropping when a loss of hydraulic pressure occurs. Sudden pressure loss can happen when a hose fails, for example.

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Vital Force

By Bruce Coons in FFJournal

March 2017

Electrohydraulic controller brings precision to friction welding process.

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Delta RMC Solves Testing Challenges

By Bill Savela, P.E. in Hydraulics & Pneumatics

August 3, 2015

Programmable custom feedback improves the quality of input signals from sensors, as well as protects control-loop algorithms from unwanted feedback and sensor failures.

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Fatigue Testing Brings Better Parts

By Staff in Quality Magazine

August 1, 2015

Assembly-level fatigue testing leads to improved production of leaf springs. With its motion control, the new tester can test twice as many springs and provide useful testing diagnostic tools, while improving test repeatability and reliability compared to the older machines.

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Motion Control Technology Advances Aid Precision Automotive Manufacturing

By Bill Savela, P.E. in Fluid Power Journal

May 1, 2013

The die cushion design by Dayton Die Cushions is an example of how hydraulic control systems are getting smarter in order to meet the increasing productivity and quality demands of modern automotive manufacturing.

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The case for retrofitting with advanced motion controllers

By Bruce Coons in Machine Design

April 26, 2013

Consider retrofitting the motion system when machine productivity declines. When retrofitting, mechanical components may still be in workable condition. Install proportional valves to improve precision, but older hydraulic cylinders may be adequate.

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Crossbreeding Technology

By Lynn Stanley in FFJournal

April 2013

The marriage of custom hydraulic press and electronic control unlocks productivity for difficult forming operations.

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Filter noise to improve machine productivity

By Peter Nachtwey in Hydraulics & Pneumatics

January 13, 2013

Two key considerations in machine design and integration are productivity improvement and cost control — how to increase plant output while reducing the amount of maintenance required.

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Inside machines: Motion control moves bacon faster

By Brad Smith in Control Engineering

October 30, 2012

Case study: When a PLC cannot move bacon quickly enough, consider a dedicated motion controller.

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Testing keeps BOPs safe

By Bill Savela, P.E. in Hydraulics & Pneumatics

October 8, 2012

Electrohydraulic controls help prevent oil well blowouts. A unique testing system was developed by HydrobotWorx LLC, Seabrook, Texas, to apply real-world stresses to units at the BOP facility of Worldwide Oilfield Machine Inc. in Houston.

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Motion Controllers as Data Acquisition and Testing Tools

By Bill Savela, P.E. in Tech Briefs

October 1, 2012

If the same module that applies the stress can also record the response, more cost-effective testing systems can be built.

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Saving time without cutting corners

By Staff in International Forest Industries

August/September 2012

The need for optimisation solutions to ensure the sawmill is running as efficiently as possible has never been more important for the industry, nor have the scanning technologies that provide the best use of raw materials with the minimal waste.

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Hydraulic controls Transform press technology

By Richard Meyerhoefer in Machine Design

June 14, 2012

Hydraulic motion controllers enhance the precision and repeatability of hydroforming presses.

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Piper Picked a Perfect Press

By Brad F. Kuvin in MetalForming Magazine

April 2012

… on which it could offload sheet-hydroforming of smaller aircraft parts, saving its large-bed fluid-cell presses for bigger parts.

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Design for TCO

By Dan Hebert in Control Design

January 5, 2012

How Do You Build a Machine That Reduces the Cost to Operate It? Learn How to Justify the Upfront Costs and Dazzle Your Customers.

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FAA uses electrohydraulic controls for runway testing

By Peter Nachtwey in Control Engineering

October 14, 2011

Programmable closed-loop motion controllers make hydraulic-actuated testing more flexible and precise, saving time and money, according to test engineers at the Federal Aviation Administration (FAA) National Airport Pavement Test Facility in Atlantic City, N.J.

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Motion controller renews old machine

By Bill Savela, P.E. in Hydraulics & Pneumatics

April 25, 2011

Retrofitting a 1960s-era stretch forming machine with new hydraulics and digital controls makes it better than new.

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Motion controller can rejuvenate your machine

By Perry Yoder in Control Engineering

December 30, 2010

Add productivity to your hydraulic machine with a new motion controller. Adding an electro-hydraulic motion controller can increase machine productivity.

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Auto Tuning Hydraulic Control Systems

By DN Staff in Design News

November 30, 2010

One of the most common questions asked when setting up a new closed-loop motion control system is, "What gains should be used for the control loop parameters?"

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Electrohydraulics keep oilfield operations flowing

By Peter Nachtwey in Hydraulics & Pneumatics

October 12, 2010

Electrohydraulic motion controllers offer great versatility when it comes to fluid handling, monitoring, and control.

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A Second Look at Electro-Hydraulic Motion Control Systems

By Peter Nachtwey in Design World

July 9, 2010

Hydraulics can be overlooked by system designers looking for precise motion. However, by selecting the right components, the result can be a high-precision, high-performance motion control system at a reasonable cost.

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Deep-Draw Metal Forming Press Uses Hydraulic Motion Controller

By DN Staff in Design News

May 24, 2010

Multipress Inc., a Columbus, OH manufacturer with a 50-year history of producing custom presses for the metalworking industry, was recently contacted by a customer with a requirement for a 50-ton deep-draw press.

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Intelligent Control Increases Motion System ROI

By Bill Savela, P.E. in Tech Briefs

February 1, 2010

The economic realities of the industrial marketplace are driving machine builders and integrators to get creative and build more intelligence into their machines in order to increase productivity and lower lifecycle cost.

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Hydraulics Safely and Smoothly Moves Broadway Stage

By Kenneth J. Korane in Machine Design

October 5, 2009

Hydraulic servoactuators control special effects for the Broadway show Billy Elliot. The set requires two hydraulic linear actuators.

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Saw smarts come from control

By Bill Savela, P.E. in Hydraulics & Pneumatics

September 13, 2009

Controlling horizontal position of saw blades increases yield while also boosting productivity.

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Case Studies: A Dynamic Duo

By Staff in Quality Magazine

April 29, 2009

Specialized software enables a PC and motion controller to interface for a pipe-testing application, precluding the need for a programmable logic controller (PLC).

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Delta Motion Controller Helps ADI Improve Automotive Chassis Testing

By Peter Nachtwey in Tech Briefs

April 1, 2009

There's a science to testing metal structures for rigidity and performance under stress. The development of new testing methodologies is continuing at a fast pace, aided by innovations in supporting technologies.

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Pressure transducers boost precision and reliability

By Peter Nachtwey in Hydraulics & Pneumatics

March 8, 2009

Closed-loop control of machinery is key to improving productivity and decreasing life cycle costs. In hydraulic applications where exerting a precise pressure is required, automated monitoring of hydraulic pressure is a necessity.

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Earthquake Simulator Relies on Hydraulics and Electronics

By Bruce Besch in Machine Design

February 17, 2009

Electrohydraulics recreates nature's wrath. Waiting until disaster strikes to assess performance is inefficient and potentially deadly. A better path is to evaluate key components in the lab.

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Waterslide Simulator

By Kenneth J. Korane in Machine Design

January 20, 2009

For aquatic daredevils, heaven would be an "endless" waterslide that fits in your back yard.

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Hay Baler Press Application

By Jacob Paso in Hydraulics & Pneumatics

January 15, 2009

Hydraulics is often perceived as a formidable power source, but one that is difficult to control precisely. It is excellent for applying strong forces or moving heavy objects, but has sometimes had the reputation of being prone to shock and expensive to maintain.

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Electrohydraulic Controls Boost Thermal Drilling

By Kenneth J. Korane in Machine Design

October 23, 2008

Melting holes is sometimes a better option than drilling them. Thermal drilling beats conventional drilling in thin metals and when weld nuts or rivnuts are needed.

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Electronic Motion Controller Simplifies Hydraulic Press Controls

By Bruce Coons in Tech Briefs

October 1, 2008

What do you do if you're in the business of producing a wide variety of metal presses to meet special customer requirements? You choose your system components wisely, and flexibility of function plays a large part.

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Tight Pressure Control

By Staff in Quality Magazine

September 29, 2008

Pressure testing is often required to verify that production containers will withstand their rated pressures in the field.

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Working Under Pressure: Using a Motion Controller for Pressure Control

By Peter Nachtwey in Hydraulics & Pneumatics

September 15, 2008

Closed-loop control methods control pressure more accurately than pressure relief valves or pressure regulators.

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Closed-Loop Control Simplifies Cyclical Testing

By Peter Nachtwey in Hydraulics & Pneumatics

April 15, 2008

Fluid power often is the first choice whenever a predictable amount of force must be exerted.

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Motion Control Makes Testing Easier

By Staff in Quality Magazine

March 25, 2008

For an ISO 10328 test system, Orion Test Systems & Engineering Inc. chose RMC75 two-axis motion controllers manufactured by Delta Computer Systems Inc. to exercise the device under test.

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Pressing need for hydraulic servos

By Staff in Machine Design

January 24, 2008

Makers of stamping presses and die casters increasingly use servocontrols to boost throughput while minimizing equipment wear and tear.

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Rotary encoders are good for your system

By Peter Nachtwey in Hydraulics & Pneumatics

October 17, 2007

When working with high precision rotating machinery, like that in the lumber industry, encoders can make your life much easier.

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Color Sensor Selection

By Loren Shaum in Control Design

October 04, 2007

Sensors Vary in Range of Capability From Looking for a Specific Color at a Specific Location to Looking for Multiple Colors Anywhere in a Field of View.

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Hydraulics Fill Molds Faster

By Jim Montague in Control Design

September 11, 2007

Pipe Machine Uses Electro-Hydraulic Controls to Lay Down Thinner, Better-Quality Concrete Layers More Quickly.

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The Truth About Problem Valves

By Peter Nachtwey in Hydraulics & Pneumatics

June 13, 2007

Choose and use your valves wisely to achieve precise control. Good performance requires more than just a great motion controller.

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Accumulators: The unsung heroes of hydraulic motion control

By Peter Nachtwey in Hydraulics & Pneumatics

December 28, 2006

Accumulators can conserve energy, make systems easier to control, and extend a machine's useful life, making them especially important for electrohydraulic motion control systems.

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Closed-loop tuning secrets revealed!

By Peter Nachtwey in Hydraulics & Pneumatics

September 19, 2006

Using feed forwards makes tuning closed-loop systems easier. Advances in closedloop control systems are enabling motion controllers to deliver the advantages associated with hydraulic power while meeting the more precise motion requirements of today's machine control applications.

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Guidelines for sizing servohydraulics

By Peter Nachtwey in Machine Design

July 13, 2006

The best controllers and software can't overcome a poorly designed hydraulic system. Experts recommend motion controllers specifically designed for hydraulic applications.

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Fine Resolution Provides Precise Positioning

By Peter Nachtwey in Hydraulics & Pneumatics

June 10, 2006

If you don't specify feedback sensors with high enough resolution, you won't be satisfied with the performance of your motion control system.

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Choosing the right valve for closed-loop electrohydraulic control

By Peter Nachtwey in Hydraulics & Pneumatics

April 12, 2006

Good design practices are essential for achieving high speed and high precision in hydraulic servo motion control applications.

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On/off or closed-loop control?

By Peter Nachtwey in Hydraulics & Pneumatics

December 7, 2005

Match capabilities of the control with needs of the application. Deciding whether to use discrete (on/off) control or closed-loop control requires consideration of several factors.

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Get More from Closed-Loop Control

By Peter Nachtwey in Hydraulics & Pneumatics

September 5, 2005

Upgrading machines with closed-loop electrohydraulic control can boost performance to as good as or better than new machines.

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Size the cylinder right for proper servo operation

By Peter Nachtwey in Hydraulics & Pneumatics

June 4, 2005

A common design oversight is the use of undersized cylinders. No matter how much attention is given to motion controller selection and programming, hydraulic system performance may be limited by incorrect sizing or physical location of components.

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How hydraulic motion-control measures up

By Peter Nachtwey in Machine Design

April 15, 2004

For positioning large loads, electrohydraulics can be a better choice than electromechanical motion systems.

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Powering the world's largest motion platform

By Herb Johanson in Hydraulics & Pneumatics

June 30, 2003

The challenges of moving a 60-ton, full-size replica of a sailing ship for one of Hollywood's latest movies are explored.

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Machine Builders Speak, Vendors Listen

By Staff in Control Design

March 19, 2003

You can influence the way suppliers design their control system products. Smart industrial OEMs can definitely influence how vendors design control systems.

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