 |
| The latest information on hydraulic and
pneumatic motion control.
|
November 16, 2009
|
Don't miss out on Aachen's annual
conference
It may seem a while away, but the 7th International Fluid Power
Conference (IFK) will be held in Aachen, Germany, March 22-24, 2010.
This is perhaps the world's number one technical conference on all
things fluid power, so be sure to check out the details and learn about
registration today. March will be here before you know it! Click here for more information about the event.
In the meantime, read on about 132 cardinal sins of working with
hydraulic systems, hydraulic hose maintenance, air cylinders and safety,
and hydraulic direct drives.
- Mary C. Gannon
|
Web exclusive: 132 'Cardinal Sins' of
hydraulics ... what NOT to do with hydraulic equipment
In the August issue of his “Inside Hydraulics” ezine, author
Brendan Casey ran a little competition in which he invited readers to
send in their favorite must-not-do or 'Cardinal Sin' related to
hydraulics. Several hundred members submitted entries and he's edited
and compiled them all into one, succinct document, with the top ten sins
described below. Read the top 10 now, and see the other 122 submissions
in a separate PDF.
|
Direct drive keeps it simple
Hydraulics is great for generating high force or high torque from
within a small package. Because of this, hydraulic cylinders and motors
are widely used in just about every type of mobile equipment. Another
big advantage of hydraulics is speed control. By varying the flow to a
motor, motor displacement, or both, a wide range of speeds can be
achieved in forward or reverse directions.
|
Rodless cylinder helps improve lift
safety
In today’s manufacturing environments, employers must adhere to
strict government regulations that limit the weight and reach of
workers. So when an operation requires lifting and manipulating heavy
payloads, workers often turn to articulated arms (jibs) for assistance.
These arms not only help ensure worker safety and prevent injury, but
they increase productivity because a single worker can perform tasks
that otherwise would require two or more workers.
|
Increase hose life and safety with proper
protection
You’re familiar with the saying “An ounce of prevention is worth
a pound of cure.” It certainly applies to protecting hydraulic hoses
on plant machinery and mobile equipment. Higher pressure systems and
more compact machine designs are challenging both original equipment
engineers and operations managers to find ways not only to extend the
life of hydraulic assemblies, but also to protect operators from
catastrophic hose failures resulting from bursts or pinhole leaks.
|
Digital indicator
Attachable loop-powered 1800 series digital indicator from Noshok
Inc. can be easily inserted into Noshok pressure transmitters using a 4
to 20 mA output signal and the Hirschmann (DIN 43650A) connector. It is
programmable to display a range of –1999 to 9999 and may be tilted for
better viewing. It has an accuracy rating of ±0.2 FS, ±1 digit. User
selectable digital filtering improves readability in rapidly varying
pressure applications, including hydraulic and pneumatic systems, pumps
and compressors, and more.
|
Accumulator safety blocks
New SBA series accumulator safety blocks from Parker Hannifin Corp.
help provide compliance for systems where shut-off, pressure limiting,
pressure release and measurement point functions are required on
accumulators. They make it possible to protect, isolate and discharge a
hydraulic accumulator from a single unit. They incorporate a shut-off,
pressure limiting and pressure release feature in a compact and robust
housing rated for working pressures up to 350 bar. They are suitable for
use with all types of accumulators — bladder, piston and diaphragm.
Full range of adapters suits all common port sizes and styles including
SAE and BSPP straight port. Three different sizes — NG10, NG20 and
NG32 — are available in a durable corrosion resistant finish.
|
Mini insert orifices
Miniature, calibrated IMH insert orifices from The Lee Co. for both
liquids and gases are available in 2.5 and 5.5 mm diameters.
Cartridge-style orifices are small, self-retained flow restrictors
designed to provide more accuracy than an ordinary drilled hole.
Accuracy is confirmed by 100% flow testing to ensure that every orifice
is within ± 5% of its nominal flow rate. Constructed entirely of
stainless steel, they are available in a range of flow rates, with
orifice sizes as small as 0.002 in. Certain models are offered with an
integral safety screen.
|
Check Out the New EET Website
Are you looking for more information on energy efficiency? EETweb.com
features the latest efficiency updates, information on the basics of
energy efficiency and products available for energy efficient designs.
Click here to
visit the site and learn more!
UPCOMING WEBCASTS
Seven Critical Issues in Heater Selection for OEM Applications
Sponsored by Minco
DATE: November 19th, 2009
TIME: 2:00pm ET/11am PT
Product development is a complex process. In addition to cost and
time-to-market, engineers have to address a variety of
sometimes-conflicting issues that can include size, weight, speed,
reliability, flexibility, ease of use, safety, manufacturability,
support costs and more. One aspect of product design that may not show
up on your list of top priorities is heating.
In fact, the heating technologies you choose, whether off-the-shelf or
customized, can have a significant impact on many aspects of your
product including performance, cost, and even time-to-market.
This 60-minute webcast will present seven factors that can help you make
the most of your heating choices.
- how heater choice can increase your design flexibility
- how heating uniformity can improve the yield of your systems
- how to speed warm-up and heat transfer for increased throughput
- how to ensure accuracy and improve your product’s
productivity
- and much more
Click here to learn more and to register!
ARCHIVED WEBCASTS AVAILABLE FOR FREE VIEWING
Click
Here for a list of archived Machine Design webcasts.
|
ROBUST HYDRAULIC CONTROL CONSTRUCTION EQUIPMENT
HAWE proportional spool valves are sensitive yet powerful and suitable
for the harshest of environments. Design safer, cleaner and more
efficient hydraulic system. (704) 509-1599, www.hawehydraulics.com, sales@hawehydraulics.com
Free brochure: Tolomatic VRX vane rotary actuators deliver high
torque, withstand high axial and radial loads
New Tolomatic VRX vane rotary actuators provide an economical and
powerful solution for rotary actuation up to 280 degrees. They can be
built to order in five days or less. For a free 12-page brochure, visit
www.tolomatic.com/vrx.
Exlar's patented actuator technology offers many times the
life of ball screw actuators and provides an efficient
electro-mechanical replacement for hydraulic or pneumatic cylinders.
These digitally controlled products
offer several advantages over other technologies.
www.exlar.com
Pneumatic cylinders
Air cylinders are available in heavy-duty brass or stainless steel in
bore sizes to 3 in. They are corrosion resistant and operate for
millions of production cycles. Online configurator offers CAD models in
2D and 3D for easier ordering.
www.clippard.com/cylinders/
|
|
|
Thank you for reading the Fluid Power Monthly Newsletter from
Machine Design.
This email was sent to #email#. You've received this e-newsletter for
one of two reasons:
1) You signed up for it on one of our web sites.
2) You are a reader of Machine Design magazine.
Manage Your Subscription
To quickly unsubscribe from this newsletter, click here Unsubscribe
To subscribe or unsubscribe, to this or any of our newsletters, visit our subscription page.
To CHANGE YOUR EMAIL ADDRESS, visit our subscription page, login with your
old email address, then change your address.
Contact Information
Editorial questions: Mary Gannon
216-931-9498
Advertising/sponsorship opportunities: Virginia Goulding
216-931-9893
Machine Design
1300 E. 9th St.
Cleveland, OH 44114
©2009 Penton Media, Inc. All rights reserved.
|
|
