Linear Hydraulic Actuators

Articles About Linear Hydraulic Actuators


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1 Smart Actuators for Off-Highway (February 2013)

Smart actuators bring big benefits to utility and other off-highway vehicles

2 Efficiency of Design (February 2018)

Energy efficiency is for more than just motors. Here are some mechatronics companies making sure you get more bang for your buck when it comes to your power bill.

3 Reduce Your Linear Motion Assemblies to a Single Component with Motorized Lead Screw Actuators (December 2019)

When it comes to specifying linear motion within a machine, system designers have many options from which to choose. Making the right choice can impact the ease of installation, footprint and cost of operation.

4 Realizing the High Precision Load Handling Benefits of Rodless Electromechanical Actuators (February 2019)

Electromechanical rodless linear actuators can offer better load handling in smaller spaces than rod-style actuators, but realizing those benefits requires careful attention at the specification level. Whether you are replacing a failed actuator, looking for better performance or building a new application from the ground up, success depends on how precisely you specify application requirements.

5 Gears for Hydraulic Pumps: Development and Results (March 2014)

After a brief introduction to the importance of gear pumps in internal combustion engines, as well as in the most diverse hydraulic applications, a calculation method was applied that allows for sizing with considerably higher delivery rates. Upon identifying and analyzing a traditional pump, along with two construction solutions of asymmetric gear pumps, we then compared their related performances.

6 (Material) Moving into the Future (June 2011)

a custom hydraulic brake system from Mico Inc. aid in the development of specialized material handling equipment.

7 Bosch Rexroth Offers Hydraulic Solution for Blast Furnace (September 2014)

While the basic design of iron and coke blast furnaces is centuries old, today's steel makers are looking for innovative ways to produce molten iron with increased production and efficiency

8 Industry news (April 2015)

News From Around the Industry

9 Bosch Rexroth Powers Coal-Handling Equipment with Hydraulic Direct Drive (March 2014)

EECV in Rotterdam, the Netherlands, keeps on expanding and improving. In 2013 their transhipment of coal increased and they installed a new bucket wheel reclaimer with a capacity of 3,500 tons per hour. They chose a direct-drive system from Bosch Rexroth for this big bucket wheel. The drive system consists of a Hägglunds MB 1600 motor and a DUe drive unit.

10 Fluid Power Free-for-All (February 2014)

IFPE offers the right balance of technology and education.

11 Improved Performance for Hydraulic Seals from Thermoplastic Polyurethane (June 2012)

Seal design engineers and end users are continually seeking improved sealing systems and materials. This paper describes the potential of a new thermoplastic polyurethane (TPU) material to deliver improvements in pressure, speed and temperature capability, which are presented as comparisons to proven industry standard materials. Performance is demonstrated by virtue of test bench results of seals made from MDI-, PPDI- and NDI-based materials.

12 Industry News (February 2016)

Latest news from around the Industry

13 Hydraulics & Pneumatics Assessment (April 2012)

The National Fluid Power Association (NFPA) is an organization consisting of manufacturers, distributors, suppliers and educators working together to strengthen the fluid power market. Its mission is to serve as a forum where all fluid power channel partners can advance fluid power technology and successfully compete in the global industrial market.

14 Industry News (August 2012)

The complete Industry News section from the August 2012 issue of Power Transmission Engineering.

15 Industry News (April 2016)

News from around the Industry.

16 Flexibility in Fluid Power (February 2018)

Latest Sealing Technologies Offer Optimum Wear and Frictional Characteristics.

17 Industry News (April 2017)

Corporate and personnel announcements from the April 2017 issue of Power Transmission Engineering.

18 Development of an Actuator for Ambient to Cryo Application (December 2010)

During the qualification campaign of the NIRSpec (near-infrared spectrometer) instrument mechanism, the actuator could not achieve the expected lifetime that had been extended during the development phase. The initial design could not be adapted to the requested number of revolutions during that phase. Consequently the actuator needed to be modified so that the function of the mechanism would not be endangered or, by extension, the overall function of the NIRSpec instrument. The modification included a change of the overall actuator design—internal dimensions, tolerances, materials, lubrication and assembly process—while keeping the interface to the mechanism, mass and function.

19 Stepper Motor Actuators (June 2015)

How would you compare the efficiency and capabilities of hybrid stepper motor actuators vs. can stack stepper motor actuators?

20 Space Shuttle Rudder-Speed Brake Actuator (October 2015)

The U.S. Space Shuttle fleet was originally intended to have a life of 100 flights for each vehicle, lasting over a 10-year period, with minimal scheduled maintenance or inspection. The first space shuttle flight was that of the Space Shuttle Columbia (OV-102), launched April 12, 1981. The disaster that destroyed Columbia occurred on its 28th flight, February 1, 2003, nearly 22 years after its first launch.

21 Performance Testing of Composite Bearing Materials for Large Hydraulic Cylinders (April 2017)

Large hydraulic cylinders (LHCs) are integral components in the functioning of large machines in mechanically demanding, corrosive and abrasive environments, such as offshore drilling rigs. The materials utilized in these largescale hydraulic systems must deliver reliable performance throughout their expected lifecycle.

22 IFPE 2017 (February 2017)

Fluid Power, Motion Control and Power Transmission Industries Come Together in Las Vegas to Promote New Solutions.

23 Graco Pump Technology Solves Long-Term Pump Leaking, Dosing Issues (September 2016)

When trying to find a new bonding material dispense system, one manufacturer tested a series of pumps — all of which leaked due to the abrasiveness of the bonding material. The manufacturer also had been attempting to manage shot size manually with their previous system, and was not able to keep dispense consistent. The company searched for a system that could accurately dispense programmed shot sizes while also eliminating the leaking issues they had experienced with previous pumps. Graco provided a Check-Mate pump with SmartWare software, and the manufacturer is now able to automatically dispense shots of bonding material as small as one ounce without leaks.

24 Industry News (April 2011)

The complete Industry News section from the April 2011 issue of Power Transmission Engineering.

25 Better Energy-Efficient Flow Rate Regulation (December 2016)

Implementing a power-on-demand concept based on variable speed drives allows for energy saving in any application that involves pumps or hydraulic systems. And when used in combination with an intelligent wiring and communication system, relevant machine data can also be easily recorded - the basis for comprehensive power management.

26 Industry News (December 2016)

News from around the industry.

27 Hands-On Hydraulics and Pneumatics (February 2017)

Action Challenge Introduces Students to Fluid Power Industry in the latest STEM educational effort from the National Fluid Power Association.

28 Industry News (Spring 2007)

News from around the Industry

29 Precision Manufacturing and the Digitalization of Linear Motion Technology (June 2020)

Digitalization is increasingly transforming mechanical engineering and manufacturing technologies, bringing with it not only unparalleled control and flexibility over production systems but so much more.

30 Ball Screws Revisited - Ask the Expert (February 2013)

A reader asks for clarification on last issue's Ask the Expert column about ball screw sizing.

31 Inexpensive Methods to Measure the Performance Characteristics of a Linear Motion Device (December 2013)

This article describes a series of tests that can be performed by the average user, with little experience, and without sophisticated measuring instruments, to quickly determine the most important performance characteristics of linear motion systems.

32 Product News (December 2014)

News from the industry about new products.

33 Industry News (December 2014)

News from around the industry.

34 Selecting and Sizing Ball Screw Drives (October 2012)

The ball screw drive is an assembly that converts rotary motion to linear motion and vice versa. The ball screw drive consists of a ball screw and a ball nut with recirculating ball bearings...

35 Product News (June 2012)

The complete Product News section from the June 2012 issue of Power Transmission Engineering.

36 Oscillation Welding Protects Pipelines (April 2010)

Ball screw assemblies are key to this patent-pending oilfield corrosion prevention solution.

37 Linear Motion Q&A: Customized Machinery Built with Off-the-Shelf Components (April 2010)

This Q&A session with various experts at Thomson Linear Systems covers linear slides & stages, clutches & brakes, bearings and actuators.

38 Product News (October 2010)

The complete Product News section from the October 2010 issue of Power Transmission Engineering.

39 Best Practices for Selecting and Sizing Guide Wheels (October 2011)

How to select a guide wheel with the properties best-suited for a given application to create a system that reduces design costs and engineering changes, and lowers warranty, assembly, installation and mounting costs.

40 INDUSTRY NEWS (March 2015)

News From the Industry

41 Product News (April 2015)

Latest Products

42 Introducing the Ball Screw (December 2018)

The Swiss Army Knife of PT Components.

43 In the News: Linear Motion (December 2019)

The following article is a round-up of the latest linear motion product and industry news items featured at www.powertransmission.com and on social media.

44 Motion System Management (August 2008)

Companies focus on customization and quality in linear motion

45 Product News (October 2008)

The complete product news section from the October 2008 issue of Power Transmission Engineering (PTE).

46 The ABCs of Linear Motion Rolling Guides (December 2018)

Improving System Performance One Application at a Time. PTE recently caught up with IKO, Rollon and THK to breakdown the basics in linear motion rolling guides.

47 Linear Bearing CAD Models and More On the Fly (April 2018)

Here's what one supplier is doing to take advantage of the mobile phone in your pocket.

48 Linear Motors (October 2016)

When the need arises for linear motion or positioning, there are many choices. One can use an Acme screw, ball screw, rack & pinion, or belts. The cost of a linear motor solution is generally greater than a mechanical linear product, but when one needs highly accurate, repeatable, high-speed motion, then the answer may be a linear motor.

49 Product News (March 2017)

The complete Product News section from the March 2017 issue of Power Transmission Engineering.

50 Why Direct Drive (March 2017)

In today's highly competitive world, the better someone understands the advantages and benefits of direct drive technology, then the more they will have an advantage in machine building, giving them an edge over their competition.

51 CNC System Upgrades (December 2017)

Automated production of large objects such as auto body prototypes, boat hulls and surfboards traditionally requires computerized numerical control (CNC) systems costing nearly a million dollars. Thomson Cuts Costs and Production Time for Autoscale Inc.

52 Electronic Control for Hydraulic Applications - A Case Study (June 2009)

This case study presents how electronics and software can be applied to a mobile hydraulic application, as well as how electro-hydraulics have evolved over time.