We might pride ourselves on our friendly and flexible approach here at Hydraulics Online, but that doesn’t mean we skimp on rigour or ensuring best practice
Our Finance & Administration Manager, Joanna explains…
I’m currently the “new girl” at Hydraulics Online – having started with the company at the end of October 2016 to head up the Finance and Administration team. Since then, my feet seem to have hardly touched the ground – there hasn’t been a quiet day, but that is probably one of the reasons why I love it here so much!
One thing that struck me during my interview was the real team focus of the business. The Director who interviewed me was Helen, and she went to great pains to make sure I felt at ease during the interview, which was, nevertheless, a very in-depth process. I really got a sense of the flexible and proactive outlook of the whole team here, and I’m pleased to say that has proved true over the time I have been with Hydraulics Online.
A Balancing Act
Balancing this friendly and personal approach with a really professional working ethic is something the whole team is passionate about. Both Helen and I have come from large, blue chip banking groups before coming to Hydraulics Online – so we have had the need for rigour, professionalism, and attention to detail drilled into us throughout our early careers. It’s really exciting to come to a smaller business like Hydraulics Online in a completely different industry, but with the same commitment to these qualities.
I joined a major British bank straight from University, under its graduate programme; I was with them for 18 years, right up until I joined Hydraulics Online. During this time I worked in the lending centre in Manchester, the credit office in Liverpool, and in relationship banking, before joining the commercial banking relationship team.
This experience has instilled in me a really strong commitment to customer service and relationship building; one that most finance professionals don’t get to put into practice in their day jobs!
Coming to a small team like Hydraulics Online has enabled me to keep this important and rewarding part of my job. I see every part of the customer experience here – from enquiry to post-sale care – and this isn’t just great for customer satisfaction, it is rewarding for us as staff too.
More than Average
It might seem a little odd to describe a finance job as exciting, but my job here really is! It is a lot more varied than your average purchase ledger administration. I get to communicate with customers every day – whether by phone or email – and I have such a variety in the work I do. From collating management information, overseeing the purchase and sales ledgers, sanctioning new credit accounts, identifying and implementing process improvements, and customer liaison, no two days are the same.
The fact that we are talking with people from all over the world, because of the global reach of the company, ensures diverse and interesting conversations! So one of the other rewarding aspects of the job is that I get to use my French and Spanish as part of my day job too. I was a bit rusty after my time in the bank – so it has been great to have an opportunity to brush up!
Like Helen, I am a graduate of Bristol University. I read Modern Languages there – so I am able to help out when we receive customer enquiries in French or Spanish. The French probably comes in most handy – although we get enquiries from all over the world, including Latin America. One of the most unusual emails I helped out with was a sales enquiry which came all the way from French Polynesia.
It’s all about the customers at the end of the day. Although Hydraulics Online is a comparatively small company, it has big ambitions – and the whole team is keen to share information and best practices. We all work together to achieve this and it comes together really well.
We welcome all feedback from customers – positive and negative – although I am happy to say that the negative is very rare. I work very closely with Helen to ensure all feedback is properly responded to, and I’d like to invite all readers to share their thoughts with us too.
Send me your comments at: email@example.com
Joanna, Finance & Administration Manager
Joanna is a valued member of our Finance and Administration team. She is mum to two wonderful boys and, like many working mums, spends every day trying to balance the competing demands of family life and career. When everything is in alignment, she can be found standing on the sidelines at football supporting her boys.
A hydraulic accumulator can allow a system to increase its cost-effectiveness, offer continuous, dependable operation and can store emergency power should there be an electrical failure…
Hydraulic systems often include a hydraulic accumulator. They have two functions: one, to store energy and two, to smooth out pulsations. If your hydraulic system includes an accumulator it will also be able to operate with a smaller pump. This is because the accumulator is able to store energy from the pump when the demand is lower. The built-up energy is ready for use the moment it is needed and can be released at a rate much higher than that that would be released with the pump on its own.
A hydraulic accumulator can also double-up as surge or pulsation absorbers, just like an air dome used on pulsating piston or rotary pumps. Accumulators cushion the hydraulic hammer, which helps to reduce shocks caused by the quick movement or sudden starting and stopping of power cylinders in a hydraulic circuit.
There are four main types of hydraulic accumulator: the weight-loaded piston-type accumulator, the diaphragm accumulator (also known as a ‘bladder’), spring-type accumulator and the hydro-pneumatic piston type accumulator. The weight-loaded piston-type accumulator was the first to be used, however it is much larger and heavier than a modern piston or bladder accumulator. This version of the piston accumulator and the spring-type are seldom used nowadays, but the hydro-pneumatic accumulators are the kind that are most commonly found in modern hydraulic systems.
What is a hydraulic accumulator used for?
Storing energy – Hydropneumatic accumulators use a gas as well as hydraulic fluid, which can be compressed into smaller volumes at higher pressures. Potential energy is stored in the compressed gas and will be released once it is required. This kind of energy is similar to that of a raised pile driver transferring its huge energy upon the pile. With a piston accumulator, the energy in the compressed gas exerts pressure against the piston separating the gas and hydraulic fluid. This forces the fluid from the cylinder into the system and consequently to the location where it is required.
Pulsation absorption – In a hydraulic system, pumps create the power that needs to be used or stored. The majority of pumps distribute this power in a pulsating flow. As the piston pump is usually used thanks to its ability to operate under high pressure, the pulsations can be damaging to a system working under high pressure. An accumulator cushions the system against the pressure variations.
Shock cushioning – There are a number of hydraulic applications where the driven member of the system makes a sudden stop, which produces a pressure wave that moves back through the system. During operation, this means that the peak pressures that appear are much greater than the usual working pressures. This creates unpleasant noise or in severe circumstances, system failure. The accumulators gas cushion can help to reduce the shock.
Maintaining pressure – When the liquid in a hydraulic system is exposed to rising and falling temperatures, it causes pressure changes. There could also be drops in pressure due to a hydraulic fluid leak. By giving or taking a little bit of the hydraulic fluid, a hydraulic accumulator compensates for pressure changes.
Fluid dispensing – Accumulators are able to distribute small volumes of hydraulic fluid, including as soon as they are required.
A couple of examples of some of the projects we’ve undertaken included some Parker bladder accumulators that were for a UK-based electro-mechanical equipment exporter, and then on the right, these accumulators that were despatched to a company who specialise in the services and repair of plant and hydraulics. They were 10 litre nitrile bladder accumulators with elastomeric seals. They have a maximum pressure of 345 bar. We have also dispatched a .75 litre accumulator with a maximum pressure of 350 bar, pressure on port line: 10-70 bar, maximum back pressure on tank line: 3 bar, minimum pressure: 10 bar and oil capacity of 12 litres/minute.
You can visit our catalogue to see some of the hydraulic components we have within our range. If you can’t find what you’re looking for then call us on +44 (0)845 644 3640 or complete our Stock Enquiry Form. Alternatively, you can make an enquiry through our online chat in the bottom right-hand corner of the site.
Bonfiglioli wheel-traction drives improve precision and efficiency in Huddig revolutionary Tigon Technology backhoe loaders.
Bonfiglioli has designed and developed a dedicated solution to the new full hybrid technology machine created and manufactured by Huddig, a leading backhoe loader manufacturer in Sweden.
Bologna, Italy, March 2, 2017- Bonfiglioli, a leader in the manufacture of gearboxes, gearmotors and drive systems, has announced the development of the 600 series wheel-traction drives – specifically designed for Tigon Technology backhoe loaders, manufactured by Huddig. Each of the special 4-wheel traction drives is capable of reaching an output torque of 40.000 Nm, and is driven by a liquid cooled 30kW electric motor. The independent control of each wheel improves the backhoe loader’s performance on slippery surfaces. The Bonfiglioli 610 drives also increase the precision of the machine, making maneouverability easier in tight spaces, e.g. in building sites located at city centres. And in line with Huddig’s requirements, the 4 drives are perfectly quiet.
Tigon Technology by Huddig, is a hybrid technology that combines diesel and electric power allowing energy generation and regeneration in a way that has never been possible before for construction machinery: the concept machine achieves significantly lower fuel consumption than a traditional backhoe loader. Based on this technology and equipped with Bonfiglioli 4-wheel traction drives, the new Huddig hybrid backhoe loader stands apart from other types of construction equipment without producing emissions.
Bonfiglioli has been designing and manufacturing drives for the construction and off-highway industry for more than 40 years. Already a leader in these markets, Bonfiglioli increased its offering in 2015 with the acquisition of O&K Antriebstechnik and now offers the widest range of final drives on the market, including the largest final drive ever made (up to 3000 kNm torque). Over 30 years ago, Bonfiglioli combined its competence in electric motors with expertise in final drives to begin producing electric and hybrid technology products for mobile equipment, and now offers a complete portfolio of electromobility solutions – find out more about the Bonfiglioli product range here.
We support businesses and customers all over the world, and now we can add the hydraulic repairs at the South Pole to our list…
As an ISO 9001 accredited company, we pride ourselves on delivering high quality hydraulic equipment and a service that is second-to-none – it’s the reason our customers place their trust in us, and keep coming back from all over the world!
Unlike some suppliers, we don’t expect you to know what you’re looking for… that’s what we’re here for; our experienced team can identify and select the best equipment for your application. Even if the product you’re after is seemingly discontinued or obsolete, or you’re working with an unrecognisable piece of equipment, we can usually work miracles and can still find a replacement or equivalent!
In some cases, we may even be to perform a hydraulic repair on your existing equipment as a cost-effective alternative. Our hydraulic repair service offers you an evaluation of your faulty unit and a full diagnosis of the potential repair work required. We will let you know which parts can be recovered and reused before we start the repairs.
Back to our new customer down in Antarctica…
When we say we trade the world over, we aren’t joking! A recent enquiry came from a new customer in Antarctica, who sent the team a photo of a hydraulic pump. Not knowing what they wanted and with the identification plate missing from the unit, the team were tasked with finding out what type of hydraulic pump it was. We never back away from a challenge!
Surely enough, the team identified the pump as a Denison P Series tandem pump and were able to quote on a seal kit to needed to undertake some important repairs on the pump; the pump came from a pristine environment into which the unit had been leaking – a repair was essential.
But sometimes a repair may just not be feasible, providing poor or unreliable performance at best. If this is what we find, we will always contact you to explain why and to quote for a brand new replacement pump.
There are a huge range of manufacturers from around the world, designing and making a variety of hydraulic pumps including: gear pumps, rotary vane pumps, fixed displacement / screw pumps, bent axis piston pumps, axial piston pumps, radial piston pumps. As well as offering pumps from all the major brands, we also offer direct equivalents to some of the more well-known hydraulic pump manufacturers… particularly useful if you’re up against tight deadlines, timescales or budgets.
Some of the popular hydraulic pump manufacturers and brands that we can supply, and in many cases offer direct equivalents to include: Adan hydraulic pumps, Atos, Bosch Rexroth, Breuninghaus hydraulic pumps, Bucher, Casappa hydraulic pumps, Commercial, Continental hydraulic pumps, Dowty hydraulic pump, Dynapower, Eaton, Eaton Vickers, Hamworthy, Hydromatik, Kawsaki, Linde, Parker hydraulic pumps, Permco, Poclain, Racine, RHL, Sauer Danfoss / Sauer Sundstrand hydraulic pumps, Salami hydraulic pumps, Tyrone, Uchida hydraulic pumps, Vickers and White hydraulic pumps.
If you want to find out more about hydraulic pumps, you can visit our main site here. You can also browse through our catalogue to see some of the hydraulic pumps and other components we have within our range. If you can’t find what you’re looking for then call us or complete our Stock Enquiry Form. Alternatively, you can contact us through our online chat in the bottom right-hand corner of our site.
Looking for a hydraulic gear pump? We offer extensive access to a vast range of hydraulic manufacturers from around the world…
The technical team here at Hydraulics Online have more than 75 years’ combined experience between them, so don’t worry if you don’t know what you’re looking for, or can’t identify an existing pump that you’re trying to replace. Leave that to us. And with our ISO 9001 accreditation, you can relax knowing that you’re in capable hands.
Large or small, a hydraulic gear pump is a simple and economical pump that creates pressure through the meshing of the gear teeth, forcing fluid around the gears to pressurize the outlet side. They may be quite loud during operation, but modern gear pumps are hugely dependable and much quieter than their older counterparts.
A hydraulic gear pump can be found in a variety of hydraulic systems. They have few moving parts, work effortlessly, and operate easily even with pressures of up to 250 bar. The displacement chambers are located between the housing of the pump and the rotating gear wheel.
There are two main types of hydraulic gear pump…
External gear pumps – These pumps are typically found in industrial and mobile applications, e.g. log splitters and lifts. Some of the features of this pump include:
- High working pressures;
- Variety of speeds;
- Large temperature and viscosity range (i.e. flexibility);
- Low cost.
Internal gear pumps – These pumps are used predominantly in non-mobile applications e.g. machine tools and presses or fork-lifts. Key features of the internal gear pump include:
- Low flow pulsation;
- Decreased operating noise;
- High efficiency.
As we said, if you’re not sure what sort of pump would be suitable for your application that’s no problem for our technical team; we are always up for a challenge and can usually work miracles with unrecognisable or seemingly obsolete hydraulic pumps and equipment too. We also undertake hydraulic pump repairs and refurbishment and can often offer “direct equivalents” where it is more cost-effective to do so. Don’t forget to visit our catalogue to see the different types of hydraulic gear pump we supply.
Whether you’re looking for a single or double-acting, tie-rod, marine, subsea or welded hydraulic cylinder, something standard or made-to-order, we have it covered…
Better still, you can relax knowing that you’re dealing with a company with over 75 years’ technical experience, backed by ISO 9001 accreditation… and that means that you’re in safe hands. We never compromise on quality on a hydraulic cylinder. Ever.
… I searched for ages to find the right size hydraulic cylinder and you guys came up trumps. Excellent service… really helpful.
If you’re looking for a “standard” hydraulic cylinder, then hop over to our catalogue where we showcase some of the more popular hydraulic cylinders we have on offer:
If you can’t find what you’re looking for, you can always contact one of our hydraulic engineers – they love to talk – or fill in a stock enquiry form. If you’re looking for something a bit different, then our Bespoke Hydraulic Cylinder Design Form will help you capture the information we need to design a custom-made hydraulic cylinder tailored to your specific requirements and operating parameters. Just fill in as much as you can… we can work through the rest together afterwards.
Let’s take a quick look at the different types of hydraulic cylinder design available…
Tie Rod Cylinder: Tie rod style hydraulic cylinders use high-strength threaded steel rods to hold the two end caps to the cylinder barrel. This technique is most often seen in industrial factory applications. Small bore cylinders usually have 4 tie rods, while large bore cylinders could need as many as 16 or 20 tie rods to be able to keep the end caps under the extreme forces generated.
Welded Cylinder: A welded body hydraulic cylinder doesn’t have tie rods. The barrel is welded directly to the end caps; the ports are welded to the barrel; the front rod gland is then usually threaded into or bolted to the cylinder barrel. This enables the piston rod assembly and the rod seals to be removed for service.
Telescopic Cylinder: The length of a hydraulic cylinder is the total of the stroke, the thickness of the piston, the thickness of bottom and head and the length of the connections. If this total length does not fit in the space available, then a telescopic hydraulic cylinder enables the piston rod to also be used as a piston barrel housing a smaller second piston rod.
Plunger Cylinder: A plunger cylinder can only be used as a pushing cylinder; the maximum force is piston rod area multiplied by pressure. This generally means that a piston cylinder has a relatively thick piston rod.
Differential Cylinders: A differential hydraulic cylinder moves like a normal cylinder when pulling. However, If the hydraulic cylinder has to push, the hydraulic oil from the piston rod side of the cylinder is not returned to the reservoir, but instead is forced to the bottom side of the cylinder. This means the cylinder moves much faster, but the maximum force the cylinder can give is like a plunger cylinder. A differential cylinder can be manufactured like a normal cylinder, only a special control is added.
Rephasing Cylinders: Rephasing hydraulic cylinders are a combination of two or more cylinders plumbed in series or parallel, with the bores and rods sized such that all rods extend and/or retract equally when flow is directed to the first, or last, cylinder within the hydraulic system. In “parallel” applications, the bore and rod sizes remain the same, and the hydraulic cylinders are always used in pairs.
Single and Double-Acting Cylinders: A double-acting hydraulic cylinder is a cylinder in which the working fluid acts alternately on both sides of the piston. It has a port at both ends, provided with hydraulic fluid for both the retraction and extension of the piston. A double-acting hydraulic cylinder is used where an external force is not available to retract the piston or where high force is required in both directions of travel. With a single-acting cylinder, when fluid flow is applied to a port in the closed end, the shaft extends until the collar or piston reaches the shaft end. When an external weight or load is placed on the shaft, the shaft will retract into the chamber until the piston or collar reaches the closed end. The cylinder generates an output force at the shaft end in proportion to its internal closed end area multiplied times the pressure potential of the fluid power system.
Can you let the boys know that they are providing us with great service, parts and information in all our locations. Your service is prompt and reliable; you’re our “go to” guys when it comes to hydraulics.
We’ve supplied hydraulic cylinders to customers all over the world, literally, in a vast range of markets…
… including an international refuse and waste management services company who needed a number of 3-stage telescopic, double-acting hydraulic cylinders, and a power transmission equipment manufacturer who needed a complete hydraulic system and hydraulic cylinders for a tipping hopper application.
Then there was the new overseas customer, a leading product design and manufacturing company within the renewable energy industry, who contacted our technical team needing support on a new product development project. Having used a tie-rod cylinder within one of their product designs before, they wanted to prototype a welded construction hydraulic cylinder instead. The cylinders (pictured right) were made to order for the customer… Remember that bespoke cylinder design service we spoke about?
These bespoke double-acting hydraulic cylinders pictured were designed as part of a bigger system design project for a new prototype machine for a British Original Equipment Manufacturer. We love bringing ideas to life!
And finally… If you’re just looking for technical information, then the good news is that we have a number of articles that may be of interest: how hydraulic cylinders work, hydraulic cylinder maintenance, hydraulic cylinder seals, hydraulic cylinder testing, hydraulic cylinder repair and hydraulic cylinder storage.
Parker Hannifin offer a huge range of hydraulic products for both mobile and industrial applications…
Usually considered to be the world’s leading manufacturer of motion and control technologies, the Parker Hannifin hydraulic product range includes: accumulators, cartridge valves, controls, filters, pumps and motors, systems, valves, cylinders, hose and accessories:
As an ISO 9001 accredited company, we are resolutely committed to quality and continuous improvement – that extends to only ever supplying top quality hydraulic equipment and components. We simply won’t put our name to anything less. Ever.
We are proud to export Parker Hannifin hydraulics globally…
It’s genuinely hard to think of an industry, market or corner of the world where we haven’t been involved to date – You name it, we’ll have done it! Our competitive pricing and deliveries are backed by over 75 years’ combined technical experience, or in the words of a customer:
… you don’t just shift boxes, you know your business inside out.
As a quick example of a Parker Hannifin enquiry that we’ve handled in the past, a UK-based ship maintenance and services company, contacted our technical team about a Parker Hannifin Commercial Hydraulics P365 Series pump. After quoting on the unit we also provided a quote on a “direct equivalent” with a lower cost and quicker lead time.
The equivalent P365 pump is a quality, British product which offers identical features and performance to the original Commercial Hydraulics pump. The customer ordered the direct equivalent and took delivery sooner than later – with leftover cash to spare!
We like a challenge…
You guys really helped me out last time I was stuck (was how an email from a returning customer began recently, and it continued)… I apologise for the lack of available details.
The email came from a worldwide marine engineering and underwater services provider, the email itself having been written by the Ship Superintendent of a vessel that was “struggling as one of her Linear Cable Engines has developed a serious problem and is now out of action.” Challenge accepted!
Our technical team have a reputation for consistently providing practical, trusted advice and solutions backed up by an ability to deliver – supplying both well-known and niche products – even against the most challenging of timescales and budgets. In this particular case, within 24 hours our team had worked with the small amount of information available to identify and quote the equipment required – a Denison Hydraulics electrohydraulic stroker (S23-12413-0, EHS 5A* with deadband) to suit a Denison Gold Cup pump, type P14P. Another happy customer!
Our catalogue showcases a range of the hydraulic products that we regularly supply all over the world. It is only a small sample, however – we couldn’t possibly include everything that we do.
If you’d like to get in touch, you can enquire online, send our team an email via: firstname.lastname@example.org, or call us to talk things through – whether that’s on Parker Hannifin hydraulics or something seemingly obscure, obsolete – or even “impossible”!
Parker are one of the most prominent players in the hydraulics industry, offering motion and control technologies and systems for a range of applications in the commercial, mobile, industrial and aerospace markets. Parker’s range includes: hydraulic accumulators, hydraulic cartridge valves, hydraulic controls, hydraulic filters, hydraulic pumps and motors, hydraulic systems, hydraulic valves, hydraulic cylinders, hose and accessories.
With operating pressures up to 420 Bar (5000 psi) and speeds up to 3000 rpm, the heavy-duty Parker PV series axial piston pump (PVplus, pictured) has a robust design that provides circuit reliability for the most demanding of industrial applications. It is available in displacements from 16-360cc for operating pressure up to 420 Bar.
Other features and benefits of Parker PV series axial piston pumps (PVplus pumps) include:
- Compact, service-friendly design with flexible mounting interface;
- Quiet operation;
- High operating efficiency for lower power consumption and reduced heat generation;
- Simple hydraulic controls with “no-leak” adjustments;
- High self-priming speed capabilities;
- Modular compensators with fast response;
- FEM optimized housing and pre-compression chamber resulting in low output, pulsation and less noise to insulate.
With quality in-demand products, lead times can sometimes become protracted creating a challenge for end users and original equipment manufacturers alike. But here at Hydraulics Online we like a challenge…
As an example, a company specialising in the design and manufacture of heat exchangers contacted our technical team requiring 5 Parker PV Series axial piston pumps on a quick delivery time. They had already contacted a number of other hydraulic suppliers, only to be consistently told that delivery times would be 8-10 weeks. We tried harder…
Our technical sales team have a wealth of knowledge between them, over 75 years to be precise, and don’t like to be beaten. And they weren’t. We were able to quote the 5 Parker axial piston pumps that the customer needed on a much reduced 5 week lead time. And, as an ISO 9001 accredited company we consistently deliver against our promises and do what we say we’re going to do. The result? Another very happy customer who took delivery of his Parker PVplus pumps in just over half the time that he had originally been led to believe would be possible.
We export to over 150 countries worldwide – technology and extensive carrier networks actually make the world a very small place – and in addition to Parker PV series axial piston pumps, we supply a huge range of other hydraulic pumps including: gear pumps, rotary vane pumps, fixed displacement pumps / screw pumps, bent axis piston pumps, axial piston pumps and radial piston pumps. If you’re up against particularly tight deadlines or budgets, we can often offer quality, direct equivalents to well-known hydraulic brands, then there’s our hydraulic repair service offering an alternative cost-effective solution for you.
If you’re not sure on what sort of hydraulic pump you need, our experienced technical team can help determine the one that will be best suited to your application. As we’ve shown, we’re always up for a challenge and can usually work miracles with seemingly obsolete hydraulic pumps too! Our catalogue showcases some of the hydraulic pumps, and other products, that we regularly supply – but it really is just a sample, so if you can’t find what you’re looking for then we’re confident that we’ll still be able to help.
Looking for a Parker hydraulic pump? We export worldwide.
Parker Hydraulics are undoubtedly one of the world’s leading hydraulic manufacturers of motion and control technologies with an extensive product range – click here for more information. But if a Parker hydraulic pump is what you’re looking for, then we have it covered here – so stay a while and read on!
Known for their durability and functionality, a Parker hydraulic pump will perform in even the toughest of environments and applications. The range comprises: tandem, gerotor, gear, screw, hydrostatic transmission, axial piston, gear and vane pumps. We’ll look at each Parker hydraulic pump briefly now:
Parker tandem piston pump:
Parker’s HP2 Series consists of two independently controlled over-centre piston pumps on a single drive shaft. Housed in a compact reservoir with a filter and associated valving, the typical input speed is 3600 rpm with an intermittent pressure of 2600 psi.
Parker Gerotor pump:
The Parker QPM3 Gerotor Pump is a low pressure pump for high efficiency (up to 10 bar, flow rate from 20 to 80 L/min), while the GPP2 High Speed/Low Torque (HSLT) design (pictured) provides speeds to 5000 RPM and continuous pressure to 2000 PSI. Aluminium construction offers optimum power to weight ratio.
Parker bent axis piston pumps:
F1/F2 fixed displacement bent-axis truck pumps, F11 small frame and F12 large frame fixed displacement bent-axis pumps and motors, T1 fixed displacement axial piston pumps truck applications, T12 dual displacement bent-axis motors, VP1 load sensing truck pump, V12 small frame and V14 large frame variable displacement bent-axis motors. F11 and F12 VOAC pumps are bent axis, fixed displacement heavy duty motor/pump series.
Parker GR screw pump:
Offering a long service life and quiet operation, Parker GR screw pumps are dependable, economical low pressure pumps free from pulsations. These rotary pumps with axial flow have only three moving parts and can be installed in any position, as well as above oil level. The secondary screws act as seals and are turned hydraulically by the fluid being pumped. There is only a rolling action between the main screw and the secondary screws, which eliminates noise and vibration.
A number of other brands come under the Parker banner too; the Parker hydraulic pumps range actually also includes “Commercial Hydraulics” and “Denison Hydraulics” pumps.
The Commercial Parker hydraulic pump range…
Commercial Hydraulics are now part of the Parker Group, with the Commercial Parker hydraulic pump series often referred to as the industry standard against which all others are measured. Previously branded Commercial pumps, motors and flow dividers are still made to the same exacting standards by Parker; the only difference is that the previous Commercial product codes are now preceded by “PG” (Parker Group).
Click on the images for more information:
We can dispatch a Parker hydraulic pump to anywhere in the world, but as with many other major brands, we can also often offer quality direct equivalents. And as a far as an equivalent to a Commercial Parker hydraulic pump is concerned, our units are built here in the UK… a quality product that we more often than not can dispatch within 24 hours.
The Denison Parker hydraulic pump range…
So, that’s a quick overview of the Parker hydraulic pump range; if you’d like more information and guidance then just get in touch with one of our lovely technical engineers. They’d love to hear from you! And we have plenty of happy customers who are glad that they did – take a look in our testimonials library to see for yourself.