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Welcome to the Hyspecs News Page. We will endeavour to provide you with relevant technical information and what's new as far as products and Hyspecs is concerned. We also run competitions from time to time with generous giveaways! To view a list of all previous Hydrafiles click here.

Sign up to receive Hydrafile by email by filling out the form to the right. Follow us via Twitter which includes all of our latest news and career opportunities.

Sep 2015

Oil Reservoir - Space Saver

When you have a big pump you need a big Oil Reservoir right? Wrong.VVR-Duo -02

Standard Oil Reservoirs add weight, they increase the size of your hydraulic System and they also increase the risk of environmental contamination, but there is another option.

Hyspecs in Melbourne recently assisted a customer who wanted a hydraulic system that would operate underground. They wanted a lighter, smaller and environmentally responsible hydraulic system. Hyspecs were able to supply this customer with a Variable Volume Oil Reservoir (VVR) which met all their needs. We have eliminated the need for a 100-150L reservoir by utilising a 7litre VVR. This resulted in huge savings in oil, space, weight and ongoing operating costs while also reducing the environmental impact of a possible oil leak.

To see a VVR in action watch the video - Cylinder operating with Variable Volume Reservoir (VVR)

For further information please call us on 0508 497 732 and talk with a sales engineer or email

Aluminium Oil Reservoirs

OMT - Aluminium Oil Reservoirs

  • Die cast aluminiumOMT Reservoirs
  • Complete with lid and gasket
  • The lid is left blank to allow the designer to cut appropriate holes for the electric motor, filters, filler/breather and any other bulk head accessories that may be required.
  • Nominal capacity corresponds to ¾  of total capacity
  • Drain plug

See our range on our website

For further information please call us on 0508 497 732 and talk with a sales engineer or email

Steel Oil Reservoirs

Hyspecs - Steel Oil Reservoirs

  • Hyspecs ReservoirsMaterial: mild steel plate
  • All external welds TIG/MIG welded, continuous, no slag and checked by liquid penetration
  • Outward top flange with Nylock nuts and bolts
  • Sloped bottom floor for easy draining via removable steel plug
  • Baffles available on request (extra cost)
  • Sealon adhesive tape that customer installs to provide dust proof and waterproof lid seal
  • Pre-drilled bolt down holes
  • Tank and lid grey primer etched inside and out
  • Nominal volume = 75% of maximum volume

See our range on our website

For further information please call us on 0508 497 732 and talk with a sales engineer or email

Aug 2015

Test Your Skills Competition Result

Thank you to all of those who entered the Hyspecs "Test Your Skills" competition. We had heaps of correct entries but there can only be one winner...

Congratulations to our winner Ross Shultz from Active Engineering Solutions Ltd.

Answer : The new pump was installed with the pressure compensator at the factory setting, which was higher than the system relief valve setting. Whenever the directional control valve is in the centre position full pump flow is relieving across the system relief valve. Depending on the duty cycle of the cylinder this can cause rapid heating of the oil as most of the electric motor power is going into heat.

Stay tuned as we may have another competition in the very near future!

Bluetooth Transducer Android App

TDWLBTransducers Direct have just released the Android App for the TDWLB bluetooth wireless pressure/temperature transducer. Along with the iOS (Apple) app you can wirelessly monitor your pressure transducers from up to 100 feet away. Download the app now from the Google Play store on your phone or computer.

The phone must have hardware support for "Bluetooth Smart", which is also referred to as Bluetooth Version 4.0 (and later). It's very likely that any device made in the last 3 years or so will work. 

Search the Google Play store using the keyword "TDWLB".

More information is available by clicking here.

Hyspecs Christchurch - Move Successful

Hyspecs Christchurch has a new home! The move was completed in two stages, with the second stage enlisiting some of the Auckland Hyspecs team to get the job done. The Auckland team enjoyed the novelty of sun, rain, sleet, snow, wind and frost in one weekend!

Our new premises offers the service team more space to work, along with increased storage facilities for parts, great off street parking.

When you next visit Hyspecs Christchurch, feel free to ask for a tour!

Moving To Birmingham

Aug 2015

Hyspecs Christchurch Are Moving

Hyspecs Christchurch are moving to 34 Birmingham Drive, Middleton.

  • Same phone number 03 366 1872
  • Same great service 
  • Larger premises 

The move will be done in two stages, please note the following dates

  • Service Department - Monday 27th July 2015 
  • Sales and Administration Staff - Monday 10th August 2015 

We apologise for any inconvenience during this move, if you have difficulty during this period contacting our Christchurch office please call our Auckland office on 09 274 9985

We look forward to seeing you soon! (click on the map below for Larger Google Map)

Map Sml

Jul 2015

Test Your Skills Competition

A pressure compensated piston pump was leaking excessively after many years of service and a replacement was ordered. Before fitting the new pump the oil and filter element was replaced and existing valves were checked for correct settings. The new pump was started up and it was confirmed to be producing sufficient pressure and the cylinder was cycled a few times before shutting down the powerpack. The next day production started and the hydraulic system overheated after 30 minutes of operation - why?

Send us your answer by 30th July 2015, to be in the draw for a Stanley Thermos flask. All entries qualify (Hyspecs Staff excluded). Answer will be published next Hydrafile. Click here to email us your answer.

Hyspecs Comp

Hydraulic Training Seminars 2015

We've set the date for this years hydraulic training seminar in Christchurch for the 29th and 30th of October. Brush up on your hydraulic knowledge or send an employee along to the 2-day seminar. Book now as places are limited.

Please note that the Auckland seminar is on the 15th and 16th of October but this has already been booked out. 



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 NZ Pricelist 2015 V2

Pricelist 2015 ScreenshotWe've update the NZ Pricelist 2015 to version 2 and it's now available for download. With its bookmarks and contents links, browsing to the product you're interested in, is a quick and easy process. Product information includes basic specification, image and price.

Along with a few price changes we've also added a few new product lines: Hydro Leduc bent axis piston motors; Transducers Direct wireless bluetooth pressure and temperature sensors; Deli 12/24 VDC hydraulic power packs; New piston pumps from Eaton and Poclain and CMG electric motors to name a few.

Click here to download the 2015 pricelist.

A hardcopy version of the pricelist is also available. Copies can be requested from your sales engineer or drop us an email and we'll get one out to you.

May 2015

Energy Saving Tip: Oil Viscosity Grade

Clean hydraulic oil of the correct viscosity grade and running at optimum temperature will ensure your hydraulics work efficiently. The working viscosity range for most hydraulic systems is 15 to 100 cSt with 20 to 40 cSt being the optimum. For hydraulic oil we generally use the ISO Viscosity Grade classification which is the kinematic viscosity of the oil at 40'C. For lower working temperatures ISO VG 22 or 32 oil is recommended and for higher working temperatures ISO VG 46 or 68 oil is ideal. Hydraulic oil that's too viscous requires extra power to overcome pressure losses, oil that's too thin causes premature wear and excessive internal leakage.

For further advice speak to a Hyspecs Engineer on 0508 497 732.

Hydraulic Oil Testing Kits

Castrol oil sample analysis kits are available from Hyspecs.

The $72 + GST list price of the kit includes postage to Castrol Christchurch and the test cost. Castrol offer a 24 hour turn around on the sample and results can be e-mailed directly to you.

You can also request a 6 hour turn around if it is an emergency.

Hydraulic system failures relate either directly or indirectly to particulate contamination of hydraulic oil. Critical hydraulic systems benefit greatly from a range of specific tests to check for cleanliness and system component wear.

Order your Sample Analysis Kit online here

CastrolHyspecs also stocks Castrol Hyspin AWS oil in 20 litre packs (with handy built in pour spouts) and 205 litre drums. "The Castrol Hyspin AWS Hydraulic Oil range has been formulated using premium mineral base stocks and incorporates the latest low zinc additive technology to provide outstanding anti-wear properties and thermal stability performance. The Castrol Hyspin AWS Hydraulic Oils have excellent hydrolytic stability providing superior wet and dry filterability and wet and dry pump performance. The Castrol Hyspin AWS range effectively control sludge and deposit formation whilst providing excellent corrosion protection to the ferrous and yellow metal components within the hydraulic system".

Click on the following link for more information: Castrol Hyspin AWS 46 - 20 litre or 205 litre drum.

Order your hydraulic oil/testing kit today by dropping us an email, shopping online or by calling one of our sales engineers on 0508 497 732


Hydraulic Oil Emergency Spill Kits

Large -Spill -Kit WebOil or grease spilled on floors, catwalks, and ladders can present fall and fire hazards as well as oil spilled outside can cause environmental contamination. 

Hyspecs have a range of Spill kits designed to minimise and clean up oil spills in the event of hydraulic hose or equipment failure. Also suitable for other oils, diesel, petrol and other hydrocarbon based liquids

  • Suitable for leaving in the back of ute/truck or cab of hydraulic machinery. 
  • All kits come with absorbency pads, protective gloves, cable ties and larger kits include disposal bags and safety glasses. 

Speak to a Hyspecs Engineer about your requirements on 0508 497 732.

Apr 2015

Electronics Team - Hytronics

David Crowe

Hyspecs have been integrating electronics in their designs for quite some time. As the demand for this technology has increased Hyspecs appointed Hydraulic & Controls Systems Engineer -  David Crowe to head up our newest division "Hytronics", joining existing engineers - Owen Ladbrook, Scott Clements and Craig Kemp.

David brings a wealth of experience to Hytronics. David is a registered Industrial electrician with over 16 years experience. David has also worked as a service Engineer, giving him hands on experience with a variety of industries.

David enjoys fault finding with a keen interest in automation. Some of David's past work includes process control, heavy industry, marine - including super yachts, mobile lifting, container cranes, and high voltage work with Power Generation. David is ready for any challenge and relishes the opportunity to work with our customers to improve their processes, production and automation.

With a number of new electronic controls being added to the Hyspecs repertoire, the possibilities are endless for increased control and automation of machinery and equipment.

Contact Hyspecs to see what Hytronics can do for your business on 0508 497 732.

Hytech - Design Doubled

Hyspecs manufacturing division, Hytech have doubled their design capabilities, and reduced their lead times.

Hytech welcomes to the team - Wendy Roberts - CAD Manifold Design Engineer.

Due to increased demand for Hydraulic manifolds, Hytech recruited Wendy as an additional designer to assist Steven Zhou with manifold designs at Hytech.

Wendy has been designing manifolds for 19 years since graduating from Coventry University in the UK with a bachelor of Mechanical Engineering. Wendy worked for UK based family business Integrated Hydraulics for 15 years (this business was bought out by Eaton), she then moved on to Hydraforce (UK) for 4 years before joining Hytech April 2015.

Hytech have been looking for ways to reduce turnaround for the manufacture of their Hydraulic Manifolds. 

This review has involved

  • Matching jobs with similar settings to reduce setting times
  • Tracking setting times
  • Tracking machine hours
  • Looking at the features of the CNC machines to get the most out of these machine
  • Repeat orders can now be managed much more quickly
  • Improved finishing with Nicol plating on all manifolds. The thickness of the plating customised to suit different working environments for longer life.
  • Working towards ISO 9000 acreditation to ensure consistency and quality of products

The results of this continual review process have been

  • Improved turn around in design
  • Increased machine time
  • Improved turn around in production

If you have a circuit design you can go direct to Hytech to talk about making this into a manifold. Ask for Production Manager - Paul Harmse on 09 921 2221. Visit the Hytech website by clicking here.

If you have an idea of what you want but not the expertise to deliver a circuit diagram, contact one of the Hyspecs Engineers on 0508 497 732.

Hytech Team Photo 2015Web

12/24 VDC Deli Power Pack

Deli DC Powerpack

  • Pre-assembled, economical power pack
  • 12VDC 2.0 kW & 24 VDC 2.2 kW motors; 3, 5 & 8 litre tanks
  • 2.1 cc/rev pump 
  • Single acting or CETOP circuits
  • Complete wired remote control

There are many configuration options available. Ring Hyspecs for more options and pricing on 0508 497 732.

Buy in our online shop now by clicking here.

Mar 2015

New! Wireless Bluetooth Pressure Transducer

Hyspecs is very pleased to be able to introduce to the New Zealand market -Transducers Direct TDWLB.

The first pressure transducer in the world to feature certified wireless Bluetooth technology and it uses a patent pending design to connect transducers to tablets and smartphones through the use of a downloadable free app.


This transducer can be used anywhere you need to monitor pressure and temperature without the need for wires.

"This is one of our most exciting new products" says Nick Cottier - Hyspecs Marketing Manager. "There are potentially thousands of different applications where this transducer can be used. This includes places where access is limited, restrictive, complicated or just time consuming such as hulls of boats, roof tops or hot industrial areas." To get started is easy as 1 2 3. Download the free app, install the transducer and wirelessly connect - no confusing wiring to figure out.

For more information download our information brochure on Indicators, Gauges, Switches and Fittings here, or please call Hyspecs to find out more 0508 497 732.

Buy in our online shop now by clicking here.

Mobile Hydraulic Service Centre

Taupo Trailer Montage Web

Hyspecs is pleased to announce the arrival of the Mobile Hydraulic Service Centre otherwise known as "The Service Trailer". 

Based in Taupo this trailer is available to carry out Hydraulic Servicing and repairs at our customers sites. This means that equipment and plant has less downtime during maintenance and repairs.

Hyspecs purchased a trailer, the Hyspecs Chirstchurch service team set out to convert this trailer into a workshop. Johan from Hyspecs Taupo then took over with Ross to put in a Hydraulic Test bench, a Hose press, Welder, Compressor and parts storage. This trailer obviously can not have everything but will be able to help in a number of situations.

As this trailer is mobile we can use this anywhere in the country that is accessible by road should it be required. The trailer has already been used for a number of jobs and with bookings for planned service work. Customers have found this to be a very convenient service. Please call Hyspecs to find out more 0508 497 732 

When Should You Change A Filter?

OMT Tank Top ReturnSpin OnAFilters should be checked at least once a month and elements changed as per the indicators, or every 2000 hours of operation, or every 6 months whichever comes first. Fluid condition should be checked at regular intervals to maintain optimum component life.

Most hydraulic failures and premature wear of components are due to oil contamination.

Hydraulic systems subject to severe service cycles, very high pressures, extreme temperatures or containing piston pumps, proportional and servo valves are more contaminant sensitive and require finer filter media. Hyspecs recommends all filters have visual or electrical pressure differential indicators fitted so you know when to replace the filter elements. An oil particle analysis to ISO 4406 is the best way to determine your filtration effectiveness and the health of the hydraulic system. Hyspecs has oil sample kits available as well as optical oil particle monitors that can be permanently installed on your machine and interfaced with your control system.

Call us here at Hyspecs now for filters or book a service on 0508 497 732. 

Browse and purchase our range of hydraulic filters in our online shop by clicking here.

Feb 2015

Hyspecs Brisbane Launch

ChrisjoinsHyspecsWe've joined forces with local Brisbane hydraulic engineer Chris Flint to bring Hyspecs (Hydraulic Specialties Pty Ltd) to Brisbane.

Chris and the team at Hyspecs celebrated our Brisbane Launch on Wednesday the 28th of January 2015. We had a good attendance, with lots of questions and answers as to what Hyspecs has to offer. Hyspecs is committed to supporting the Hydraulics Industry in Australasia.Brisbane LaunchBrisbane Launch 


Hyspecs 2015 Price List Printed Edition

Hyspecs 2015 Price List printed version is now available.

Pricelist 2015 Screenshot

There are new products, some price drops and a few extra features listed. There are tabs to make it easy to find what you are looking for.

Product information includes basic specification, product image and price.

If you would like a free copy please call Hyspecs on 0508 497 732 or download an electronic copy - with its bookmark and contents links, browsing to the product you're interested in is a quick and easy process.  Click here (6.8 MB) to download the 2015 Price List.

New *Hydrocontrol hydraulic remotes now in stock*

remote hydraulic controllersHydrocontrol remote hydraulics controllers allow users to remotely control pilot operated valves and pilot operated pump servos. T

Working on pressure reducing principles, Hydrocontrol hydraulic remote controllers can be configured to a pressure control range to suit the majority of applications. Pressure range settings are field convertible.

Remote controllers can be configured with ancillary electrical control options to combine a machine's control interface into a single compact package

Consult Hydraulic Specialties for the range of control springs available and metering curve information by phone on 0508 479 732 or email us on 

Download product specifications here.

New Product *Raking Adaptor for Fillers*

MT-M5PT-M5 Raking adapter for fillers - this Aluminium adaptor is for fitting OMT TR series filler breathers to the side of a tank, it is fully equipped with screws and gasket in flexoid.

Call Hyspecs now if you would like more information 0508 497 732 

Download product specifications here.

Oct 2014

Hydraulic Training Seminars 2014 - Photos

Both Christchurch and Auckland 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. SI Class of 2014

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 candy factory!

In Auckland another highlight was the tour of the Hytech manufacturing facility where our Manifolds are designed and manufactured.

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 pageNI Class of 2014Hytech Tour

Hydraulics Overheating?

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 accurate reading.

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 run.

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 systems 

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 heat:

 Emmegi Water Cooler

  • 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 separate series of smaller tubes running inside this, containing flowing fresh or slat water which carries the heat away from the oil.  Emmegi Air cooler











If you need help with an overheating hydraulic system call Hyspecs today on 0800 497 732 or email us on

For specification and pricing information on Hyspecs range of Emmegi Oil Coolers please click here.

For specification and pricing information on Hyspecs range of Oil Reservoirs please click here.

Engineer Profile - Craig Kemp

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 New Zealand and Australia as well as quality control and company process improvements.

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 hereCraig Kemp Project Engineer

May 2014

Hydraulic Motors - how stuff works

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.

Gear Motor

Consit essentially of two intermeshing toothed gears enclosed in a common housing.

Gerotor/Geroler Motor

The H series motor uses a Gerotor while the rest of the Char-Lynn motors use a Geroler.

Piston Motor

Axial piston Motors are displacement machines in which the pistons are arranged in parallel to the axis of rotation of a cylinder barrel.

Swash-Plate Motor

In this version, the cylinder barrel is driven and, as a result, the pistons which are located and guided in the barrel rotate with it.

Bent Axis Motor

With this type of hydraulic motor, the cylinder barrel is driven by the pistons which in turn are themselves driven by the drive flange.

Wobble-Plate Motor

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 0508 497 732.

Mar 2014

Poclain Hydraulics

Poclain Hydraulics LogoPoclain Hydraulics has become the world leader in hydrostatic transmissions based on high performance cam-lobe radial-piston motors. Further to Poclain Hydraulics' off-road market expertise, Poclain Hydraulics now offer innovative solutions utilizing hybrid hydraulic products.

Hyspecs New Zealand is the sole distributor for Poclain Hydraulics products. This includes their range of Motors, Pumps, Valves, Electronics, Hydraulic Power Packs and Systems.

Poclain Radial Piston MotorFor more information on Hyspecs range of Poclain Hydraulics product, fill out our Info Request form or talk with one of our engineers on 0508 497 732.

To download a printable Poclain Hydraulics brochure click here.

For  servicing of your Poclain Hydraulics product call us now on 0508 497 732 to book a repair.


Service Challenge - another day in the office

The stats
* 5" bore
* 3" shaft
* 2½ m stroke 4 tonne bin
* 1 Service Tech

The problem

* Piston comes off end of rod.
* Bin won't come off in this position!
* The question How the @#*# are we going to do this?!

The solution

* Get big crane in to get heavy bin off so we can  remove the bent bit!!

For all your Hydraulic Servicing call Hyspecs 0508 497 732 and speak with one our service Engineers. They are ready for your challenges. (click on images below for larger image)

Piston Off RodBENT-MAIN-LIFT-CYLINDER-Cranesml 2S=


Feb 2014

Hydraulic Winches

Boat Hydraulics Including Remote Control of the Hydraulic Winches. Hyspecs was contracted by a major North Island boat builder to supply the hydraulics for a 24m catamaran work boat.

See the winches in action on youtube 

In order to make this a multi purpose work boat, Hyspecs had to design the hydraulic system to seamlessly run various deck equipment simultaneously.

Hydraulic Anchor Winches

The Power house


Log Splitter Parts

Build Your Own Log Splitter With Hyspecs Log Splitter Parts. Hyspecs has a range of log splitter parts to suit a variety of size requirements and performances.

Hyspecs source only quality parts that you can rely on.

The log splitter parts can be sized to suit portable petrol engine units, tractor PTO set-ups and electric motors. When designing your log splitter, take into consideration the throughput you would like to achieve. The more horsepower you have, the faster you will be able to split the wood.

See in action a Hyspecs custom built commercial 30 tonne log splitter with integral conveyor. Hyspecs sales engineers designed the system with a Galtech double gear pump, unloader valve and auto kick out valve. So much easier than weilding an axe! 

CustomLogSplitterFor more information please download our Log Splitter Brochure