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As summer approaches the extra heat in the atmosphere puts more
pressure on hydraulic systems.
Hyspecs recommends, as operating temperature is 60 degrees
Celsius. Do not test with your hand, as even touching for a split
second is too hot. Instead use the temperature gauge to get an
Eaton recommends a maximum system operating temperature of no
higher than 82 degrees Celsius. Keeping your system cool will
increase the life of your system and save you money in the long
In a perfect hydraulic world all energy put into a system could
be transferred to the job at hand, whether it is a cylinder, motor
or some other hydraulic machinery. However we are lucky if we get
65-75% of the input energy turned into useful work. The rest gets
turned into heat, noise and vibration.
The loss of power can be attributed to many things:
- High pressure drop across
hoses, orifices and valves
- Mismatched motor sizes in a
pressure compensated system
- In-built inefficiencies in
pumps and motors
- Poorly designed hydraulic
Try as we may to get the system 100% efficient we will never do it,
so we are usually stuck with two options to overcome
- Build a large oil tank to
dissipate the heat. This is usually the easiest and cheapest option
if designing a system from new. Hyspecs recommends a tank size of
at least 2.5-3 times the maximum flow of oil in the system (not
applicable to closed loop systems where the designer can get away
with a much smaller tank).
- Install a hydraulic oil cooler
cable of cooling approximately 30% of the system input power. Oil
coolers typically come as either air/oil or water/oil variety. The
air/oil coolers are pretty much the same as a car radiator with
either an electric or hydraulic fan blowing over the fins to cool
the oil flowing inside the radiator. Oil/water coolers are designed
to have oil running through a large outer tube with a seperate
series of smaller tubes running inside this, containing flowing
fresh or slat water which carries the heat away from the
If you need help with an overheating hydraulic system call
Hyspecs today on 1800 497 732 or email us on firstname.lastname@example.org
For specification and pricing information on Hyspecs range of Emmegi Oil Coolers please click
For specification and pricing information on Hyspecs range of Oil
Reservoirs please click here.
Project engineer Craig Kemp says the thrills and excitement of
hydraulic engineering are with the large projects undertaken by
Hyspecs. Recruited into the Hyspecs team in January 2007, Craig's
primary work focus is managing projects in Australia and New
Zealand as well as quality control and company process
Hyspecs are proud of their team here at Hyspecs. This year we
have been profiling various staff in Engineering News.
"With our staff of highly proficient hydraulic engineers like
Craig, Hyspecs is able to offer customers a complete system
solution," Mr Krebs says. "To ensure that our customers'
expectations are met, all projects go through a design review
process before a final proposal is presented to the customer. The
types of projects that we have worked on are varied, ranging from
simple hydraulic power units to large marine systems for
controlling A-frames, deck winches and cranes."
Read full Engineering
news article here
Both Christchurch (NZ) and Auckland (NZ) Training seminars sold
out again this year. People for the Auckland seminar came from wide
and far - Dubai, Gisborne and Wellington.
For the Christchurch seminar we had people from the Hawkes Bay,
Nelson through to Dunedin.
We had fun with lively discussions on hydraulics, how the
different components worked, why hydraulics fail and how to get
longer life out of machinery and general fault finding. Our
hydraulic training seminars are such a mine of information on
hydraulics that even our competitors attend!
Some of the highlights - Hands on learning with parts and cross
sections of parts passed around the class, stories of Luigi. The
tour of Hyspecs products - for some it was like being a kid in a
In Auckland another highlight was the tour of the Hytech
manufacturing facility where our Manifolds are designed and
In Christchurch the test equipment tour had some service
engineers wheels spinning.
Some of the feedback we received "my knowledge has greatly
increased and taken another persons perspective", "was excellent,
can now apply this knowledge at work in practical applications",
"The Topics covered gave a good general base on hydraulic
components, applications and systems". See more photos on our
Face book page
Hyspecs provides a full range of hydraulic motor with a brief
explanation of each hydraulic motor category below. Click the
headings for more detailed information.
Consit essentially of two intermeshing toothed gears enclosed in
a common housing.
The H series motor uses a Gerotor while the rest of the
Char-Lynn motors use a Geroler.
Axial piston Motors are displacement machines in which the
pistons are arranged in parallel to the axis of rotation of a
In this version, the cylinder barrel is driven and, as a result,
the pistons which are located and guided in the barrel rotate with
With this type of hydraulic motor, the cylinder barrel is driven
by the pistons which in turn are themselves driven by the drive
With this type of hydraulic motor, a so-called wobble plate is
driven by the input or drive shaft.
For a more detailed description of each of these motors please
visit our "How
stuff works" motor series page or contact one of our Hyspecs
Engineers 1800 497 732.
* 5" bore
* 3" shaft
* 2½ m stroke 4 tonne bin
* 1 Service Tech
* Piston comes off end of rod.
* Bin won't come off in this position!
* The question How the @#*# are we going to do this?!
* Get big crane in to get heavy bin off so we can remove the
For all your Hydraulic Servicing call Hyspecs 1800 497 732
and speak with one our service Engineers. They are ready for your
challenges. (click on images below for larger
Boat Hydraulics Including Remote Control of the Hydraulic
Winches. Hyspecs was contracted by a major North Island boat
builder in NZ to supply the hydraulics for a 24m catamaran work
See the winches in action on youtube http://www.youtube.com/watch?v=-B-BYu0p9_0
In order to make this a multi purpose work boat, Hyspecs had to
design the hydraulic system to seamlessly run various deck
The Power house
Hyspecs is a distributor for Comer SOM planetary
reduction boxes. With the modular assembly design, multiple input,
output and reduction ratio options can be selected to fit in with
planetary gear units are divided into 21 basic groups depending on
the different torques that are to be transmitted to the output
shaft, which can vary from 50 to 65000 Nm.
In fact, the product modular construction permits the coupling
of bevel gears, worm gears, hydraulic brakes and a variety of input
shafts to the planetary units, as well as providing for a wide
choice of coupling flanges for hydraulic or electric motors.
Hyspecs currently stock a range of PG and PGA 100 to 700 series
reduction boxes with a lead time of approximately 1 week.
For detailed specification information, click here to access the
Comer SOM website data pages. Browse our range in the Hyspecs online shop here.
For more informaiton
talk with our Sales Engineers today on 1800 497 732 or send us an
shopping is available at www.hydraulicspecialties.com.au.
It's easy to use and you can either search by category, brand or by
using the built in search engine, you can find a product directly
by part number or description.
The site is available 24/7 so if you've run out of
time during the day to order that part, you can always logon after
hours, place the order and we'll get it dispatched first thing the
following morning. Click here to
shop online now.
We've set the date for this years hydraulic training
seminar in Melbourne. Brush up on your hydraulic knowledge or send
an employee along to the 2-day seminar. Sign up now:
Join Hyspecs for the two day seminar covering everything from
the basic principles of hydraulics to fault finding and failure
analysis. Learn how to design a hydraulic winch circuit, size
components and draw a circuit. Just turn up with an open mind and
lots of questions! Click here for
more information on the Hyspecs website.
Click here to download the registration form.
Hyspecs stocks the Galtech range of cast iron
mono-block valves which can be controlled manually and
electrically. Galtech have just released a new version of solenoid
for the largest valves in the range, the Q95 and Q75. With a
reduction in size, the coils can now be installed on all adjoining
sections. The Q95 (1") and Q75 (3/4") come in a 1 to 6 bank
configuration. These valves have been very popular where electric
control is required with a very durable manual backup in
* One to eight bank valves 3/8"-1/2"
* One to six bank valves 3/4"-1"
* Pressures up to 350 bar, with built in
* Flows to 120 l/min with good
* Power beyond and detent options
* Electric solenoid option
override for all
* Hydraulic, pneumatic and remote cable actuator options
* Dual axis lever option for double bank valves
* Cylinder, motor, single and double acting spools, open or closed
For more information and pricing click
Hydraulic power packs are used to
provide hydraulic power via oil flow and pressure. In their
most basic form they consist of the following:
1. Prime mover - AC or DC electric motor or a petrol or diesel
2. Hydraulic pump
3. Bellhousing and coupling to join the prime mover and pump
4. Relief valve to protect the pump and circuit
5. Tank and oil
Hyspecs have available off the shelf modular DC hydraulic power
pack. Hyspecs can also manufacture hydraulic power pack to
your requirements. From small hydraulic power pack driving a simple
ram to large complex hydraulic power pack driving components in
industrial sized power stations.
Read more about Hyspecs hydraulic power pack