Welded Hydraulic Cylinders

So, we think we know why you’re here… You’re looking for welded hydraulic cylinders, right?

Well, whether you are looking for a relatively “standard”, or completely bespoke welded hydraulic cylinders, you can rest assured knowing that, with over 75 years’ technical experience and our ISO 9001 accreditation under our belt, you’ll be in safe hands. And if you know exactly what you need then that’s great. But if, like the majority of our customers, you need some guidance, then that suits us too.

Whilst tie rod cylinders can be used in a range of applications, welded hydraulic cylinders have more advantageous benefits to a hydraulic system; tending to have a short overall length and a narrow body, welded hydraulic cylinders can sit comfortably in tight spaces within machinery. These cylinders can be easily customised and are also less likely to experience failure, thanks to the tie rod stretch at high pressures and long strokes.

Welded Hydraulic CylindersApplications that use welded hydraulic cylinders typically include construction apparatus (excavators, bulldozers and road grader) and material handling equipment (forklift trucks, telehandlers and lift-gates); cranes, oil rigs and large off-road vehicles are also common examples of other applications.

The standard range of welded hydraulic cylinders (provided by hydraulic companies such as Bosch Rexroth, Hydac and Eaton Vickers) usually offer the following features:

  • Piston Rod Construction: The piston rod of a hydraulic cylinder functions both inside and outside the barrel, therefore also functions both in and out of the hydraulic fluid and surrounding atmosphere;
  • Metallic Coatings: It’s necessary to have smooth and hard surfaces on the external diameter of the piston rod and slide rings for proper sealing. Corrosion resistance is also beneficial – a chromium layer may often be useful on the external surfaces of these parts, though chromium layers may be porous, and could attract moisture and ultimately cause oxidation. In harsh marine circumstances, the steel is therefore frequently treated with both a nickel layer and a chromium layer – often 40 to 150 micrometre thick layers are applied. Solid stainless steel rods are occasionally used: high quality stainless steel such as AISI 316 can be used for low pressure applications while other stainless steels such as AISI 431 can be used where applications have higher stresses, but lower corrosion problems.
  • Ceramic Coatings: Because of the inadequacies of metallic materials, ceramic coatings were advanced. Initially ceramic protection schemes seemed ideal, but porosity was higher than projected. Recently, the corrosion resistant semi ceramic Lunac 2+ coatings were introduced. These hard coatings are non-porous and don’t tend to experience high brittleness.
  • Lengths: Typically, piston rods are available in lengths which are cut to suit the application. As the common rods have a soft or mild steel core, the ends can be welded or machined for a screw thread.

Hydraulic ManufacturersHydraulics Online has widespread, competitive access to quality, welded hydraulic cylinder manufacturers worldwide. The key word is quality. Our ISO 9001 accreditation is your guarantee that we will never compromise on quality, nor make promises that we can’t keep. Aside from obvious routine servicing and maintenance, we want you to be able to “fit and forget” any equipment we supply.

Introducing our standard range of welded hydraulic cylinders…

Hydraulics CatalogueOur catalogue showcases some of the hydraulic cylinders that we are regularly asked to supply: single and double-acting cylinders, tie rod, marine / subsea and welded hydraulic cylinders – you can find them all here. It is only a small selection though, we couldn’t possibly squeeze in everything that we do, so if you can’t find what you’re looking for then call us or complete our Stock Enquiry Form

Weleded hydraulic cylindersOur range of welded hydraulic cylinders (pictured) have significant internal bearing lengths reflected in their design, and are constructed with high quality materials together with proven seal types and a choice of sealing systems and materials. Also available is an end of stroke cushioning, for either or both ends of stroke. All of our welded hydraulic cylinders can be supplied with: internal full displacement positional transducers, end of stroke sensors and control valve packages – valves built directly into the cylinder endcap or manifolded onto the cylinder.

Maybe you’re looking for something completely bespoke – welded hydraulic cylinders designed and built so suit your exact requirements…

Whether you simply need a “one-off” or are looking for regular, reliable supplies at volume, we can  provide custom-made welded hydraulic cylinders to suit your specific application, requirements and operating parameters. As long as you know what your end goal is, then we have the hydraulic cylinder design and wider systems expertise to help you achieve it. There’s no minimum order quantity, so if you only need one hydraulic cylinder making that’s fine. Even if your ideas are still on the drawing board our technical team can provide you with an upfront design and outline prices, and then support you through final production and beyond into “business as usual” activities and production.

You can find our bespoke hydraulic cylinder design form here.

To give you a quick example…

Bespoke Welded Hydraulic CylindersA new overseas customer, a prominent product design and manufacturing company within the renewable energy industry, contacted the Hydraulics Online technical team needing assistance with a new product development venture. They had used a tie-rod cylinder within one of their product designs previously and wanted to sample a welded construction hydraulic cylinder instead. The customer ordered 6 of these cylinders which were dispatched next day.

“We placed our first order with you on Thursday of last week. I received a proforma which was paid by us on Friday. The order was delivered direct to our customer by you on Monday… Very good, efficient service!”

I searched for ages to find the right size hydraulic cylinder and you guys came up trumps. Excellent service… really helpful.

In the relatively short time that we have been dealing with Hydraulics Online they have become our first choice hydraulic supplier. Their prices are competitive, deliveries on time and advice given honest and fair. We would not hesitate to recommend Hydraulics Online to anyone needing hydraulic spares or advice in this field.

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.

If you’re still not convinced that we’re the right welded hydraulic cylinder supplier for you then there are plenty more examples scattered throughout our library of cases studies and testimonials. We hope to hear from you soon.

Hydraulic Motor

As a trusted hydraulic motor supplier we offer extensive, competitive access to big name, as well as less well-known, manufacturers from around the world – that’s because many branded motors can often be directly interchanged with those from smaller, niche hydraulic motor manufacturers… meaning that if timescales or budgets are not in your favour, then we can be!

We should perhaps just add that “less well-known” never means inferior quality; we refuse to compromise on that. Our ISO 9001 accreditation, means that we believe that the service and products you receive should be second-to-none, and that includes our hydraulic motor range.

The Hydraulics Online team are passionate about anything and everything hydraulic – but we don’t expect you to be! So if you don’t know what hydraulic motor you are looking for then it doesn’t matter, that’s what we’re here for. Our technical team will work with whatever information you do have, or even a photograph, if you are looking to replace an existing hydraulic motor.

And according to our customers we “know our stuff”:

“Just to let you know how impressed I am with your service. Not only did you recognise the hydraulic motor I needed, where others had failed to, but you were able to despatch a replacement to me incredibly quickly.”

We can supply a vast range of motors including: radial piston motorsaxial piston motorsexternal gear motorsGerotor and Geroler motors from manufacturers including: Bosch RexrothDenisonItalgroupMaxmaParkerRoquetSauer DanfossVickers and White Drive Products.

So, lets bring all this to life and showcase a handful of the thousands of customers we’ve helped to date…

The team were contacted by the owner of an offshore fishing vessel, that was stranded, unable to operate… every lost hour meant more lost revenue. Ouch! The Hydraulics Online team knew that the existing brand of hydraulic motor was on an uncomfortably long lead time, and instead sourced an “off the shelf” equivalent motor which was flown into the UK within 48 hours. No re-engineering was required and the loss to our customer’s revenue was minimised.

Moving on, a power transmission engineering company approached our technical team after one of their blue-chip client’s critical gearbox / hydraulic motor had failed, our customer having been unable to source a replacement hydraulic motor from their existing suppliers within an acceptable lead time. Our team identified the hydraulic motor immediately and a replacement identical hydraulic motor was purchased and air-freighted within 48 hours again to minimise downtime for the end customer.

A third customer, a national household power generation company, needed a replacement hydraulic motor following the failure of the main hydraulic starter (radial piston) motor on a LM6000 GT package. The original unit was a Bosch-Rexroth hydraulic motor and was on a long lead time. One of our hydraulic engineers visited the site within an hour of contact, identified the hydraulic motor and specified a suitable equivalent replacement Italgroup hydraulic motor, available from Hydraulics Online stock. This was delivered to site the same day, minimising downtime and getting the company up and running again.

“Hydraulic motor arrived this morning, it’s now fitted and our machinery is working perfectly. Thanks for your help in identifying what we needed… I will certainly recommend your service to all my contacts.”

Our catalogue shows a sample of some of the more popular hydraulic motors that we regularly supply, but it is only a sample – it’s impossible for us to list everything that we do! So if you can’t find the hydraulic motor that you’re looking for, complete our Stock Enquiry Form or for more technical advice contact one of our experienced technical team on: +44 (0)845 644 3640 or via: sales@hydraulicsonline.com.

And if we still haven’t convinced you to give us a try, then maybe reading more of our customer testimonials would do it? Go on, let us take the pressure!

Testimonial: Rexroth Hydraulics

Thanks for your help. Much appreciated, fantastic service and a quick turn around for the machine… We don’t really have a hydraulic supplier to speak of and we would appreciate you coming aboard.

Words from a new customer, a prepared foods supplier for UK & global food retailers and outlets, needing to keep their production lines up and running shortly before Christmas. One call to the team here was all it took… So you may have us to “thank” for some of those extra snacks and treats you enjoyed over the festive season!

Bosch Rexroth Products

Bosch-Rexroth-Hydraulics1In this instance the customer was looking for replacement Bosch Rexroth equipment for one of their food processors and mixers. You can find out more about Bosch Rexroth here or you click through on the following links if you’d like to find out more about us and our customers, the markets and other hydraulic manufacturers that we deal with and the hydraulic products and services that we can provide.

Remember, if it’s hydraulic we can design it, supply it, solve it or repair it!

Hydraulic Pump Repair

Searching for a hydraulic pump repair service? Look no further…

Just a quick email to thank you for the hydraulic pump repair. My neighbour is really grateful; he said that without the repair the machine would have just been “ferraille” (scrap). Guess I owe you a bottle of red!

When new customers ask what services we can offer, we keep it simple and say: “If it’s hydraulic we can design it, supply it, solve it or repair it…” That means that if you’re looking for a hydraulic pump repair service, then your search is over!

As with other hydraulic equipment, many of our well-repaired and refurbished hydraulic pumps are virtually indistinguishable to a brand new unit. Our service includes a free evaluation – having examined your existing pump to diagnose the extent of work needed, and ability to recover and re-use existing components.

When evaluating your hydraulic pump our team could offer recommendations to improve its design and productivity, so that you could reduce running costs and minimise the likelihood of any future downtime and hydraulic pump repair work. Our assessment may determine that a hydraulic pump repair is not feasible, not good value for money or simply not recommended. If this is the case then we will quote for a new, replacement new unit in addition to quoting for your hydraulic pump repair if appropriate.

Let’s give you a quick example to bring all this hydraulic pump repair talk to life: Our technical team received a phone call from a well-known, global oil company asking whether we could fix one of the pumps (a Parker, Commercial Intertech P15H 6 Section pump) in their system. We asked to see a quick photograph of the defective pump first, before confirming that, yes, we could undertake the repair. The pictures below show the pump, “before” and “after”… Not a bad looking makeover is it?

Before AfterIf a repair isn’t possible, or not what we would recommend, we may be able to offer a “direct equivalent” to your existing brand of hydraulic pump. This can be a particularly attractive option if you are up against tight timescales or budgets… but rest assured, it doesn’t mean compromising on quality. Ever. As an ISO 9001 accredited company, quality means everything to us. We want you to be able to “fit and forget” any equipment that we supply aside from undertaking routine servicing and maintenance, obviously.

Commercial Hydraulics Pumps 2

Take the case of another large offshore oil company, who contacted the team looking for a Commercial Hydraulics P365/P330 tandem pump; they needed one urgently as they were in a breakdown situation on one of their accommodation rigs. The bad news was that the original Commercial Hydraulics pump was on an 18 week lead time, so that simply wasn’t an option for the customer. However, the good news was that we could offer a direct equivalent (pictured) to be supplied from stock… a quality product, constructed and tested in the UK. The customer placed their order instantly. Within 24 hours the pump had been assembled, tested and dispatched… before being flown to the accommodation rig by helicopter the very next day.

At Hydraulics Online we can offer direct equivalents to a vast range of hydraulic manufacturers. We’re always up for a challenge, and even if components are discontinued or seemingly obsolete, we can more often than not source an equivalent suitable to your application.

Some of the popular hydraulic pump manufacturers and brands that we can supply include: Adan, Atos, Bosch Rexroth, Breuninghaus, Bucher, Casappa hydraulic pumps, Commercial, Continental, Dowty hydraulic pump, Dynapower, Eaton, Eaton Vickers, Hamworthy, Hydromatik, Kawasaki, Linde, Parker, Permco, Poclain hydraulic pumps, Racine, RHL, Sauer Danfoss hydraulic pumps, Sauer Sundstrand, Salami hydraulic pumps, Tyrone, Uchida, Vickers and White hydraulic pumps.

We supply a variety of hydraulic pump types including: Gear pumps, rotary vane pumps, fixed displacement pumps / screw pumps, bent axis piston pumps, axial piston pumps, and radial piston pumps. We can help identify the pump that will be appropriate for your application, even if you’re not certain on what type of hydraulic pump you need.

So back to that hydraulic pump repair you were looking for. If you’ve read this far then you’re hopefully tempted to give us a try. So what are you waiting for? We promise you, your brand is in safe hands.

Rexroth

Providing you with quality Rexroth hydraulic equipment…

Bosch Rexroth, are well-known for producing quality hydraulic equipment. For over 200 years, Rexroth Hydraulics have gained over 33,700 partners in 80 countries and they are renowned for their productive, energy-efficient and customized solutions.

Our Rexroth range is hugely popular. There’s not a day that goes by that we’re not asked to quote for a vast range of Rexroth hydraulic equipment for customers large and small all over the world.

Bocsh Rexroth ATEX-Rated Solenoid Valve

As an example, a returning customer, a leading global independent service provider to the oil and gas industry, required a Bosch Rexroth ATEX-rated cetop solenoid valve. This non-standard, specialist, “Intrinsically Safe” or “ATEX” certified was supplied.

 

Bosch Rexroth Float Level Switch R901269280Another regular customer, an amusement ride manufacturer and maintenance company who operate all over the world, needed a Bosch Rexroth float level switch series 1X for one of their latest projects. Sorted.

 

BR PumpWe’re on a roll! A well-known, global tyre manufacturer contacted the technical team looking for a Bosch Rexroth PV7 adjustable vane pump; they needed to take delivery within 2 working days at the latest. Lead times are never usually a problem for us and this the customer was back up-and-running with a fully-functional production line in no time (pictured right)!

Bosch Rexroth CD70 Series CylindersAnd finally, a long-standing customer, a leading global provider in the oil, gas, power and water markets, took delivery of two Bosch Rexroth CD70 Series tie rod cylinders with trunnion mount (pictured left).

 In full, the Rexroth hydraulic product range consists of:

  • Bosch Rexroth cylinders: tie rod cylinders, mill type cylinders, large hydraulic cylinders, cylinder accessories and spare parts;
  • Bosch Rexroth proportional servo valves: proportional directional valves, proportional pressure control valves, proportional flow control valves, high-response valves, directional servo valves, proportional servo valve accessories;
  • Bosch Rexroth hydraulic pumps: axial piston pumps, external gear pumps, internal gear pumps, gerotor pumps, vane pumps, radial piston pumps and electro-hydro pumps;
  • Bosch Rexroth motors: axial piston motors, external gear motors and radial piston motors;
  • Bosch Rexroth on / off Valves: isolator valves, check valves, directional valves, pressure control valves, flow control valves, 2-way cartridge valves;
  • Bosch Rexroth hydraulic manifolds and plates: sub plates, cover plates, adapter plates, sandwich plates, multi-station manifold plates, control modules, modular plate systems, control blocks;
  • Bosch Rexroth accumulators: hydro-pneumatic accumulators, accumulators assemblies, accumulators shut-off safety blocks;
  • Bosch Rexroth hydraulic power units and accessories: oil tanks, standard power units, silent power units, pimary power units, pump-motor groups, clamping and drive modules, power unit accessories;
  • Bosch Rexroth hydraulic filters: breather filters, tank mounted filters / return line filters, in-line filters, duplex filters / in-line filters switchable, block mounting filters, suction and spin-on filters, strainer basket filters, filter systems, filter elements and accessories.

Hydraulics CatalogueVisit our catalogue to view some of the Bosch Rexroth GoTo products we have within our range. This is, however, just a sample of some of the products that we regularly supply, so if you can’t find what you’re looking for, or aren’t even sure what you need then call us or complete our Stock Enquiry Form

 

Bosch-Rexroth-Hydraulics1

Bosch Rexroth PV7 Adjustable Vane Pump

As the saying goes, “the impossible we do at once, miracles can take a little longer”…

Challenging lead times are never usually an issue for the team here at Hydraulics Online – if you need something urgently our team will genuinely pull out all the stops to get you sorted as soon as possible, even if you really needed it “yesterday”!

A well-known, global tyre manufacturer contacted the technical team last week looking for a Bosch Rexroth PV7 adjustable vane pump; they needed to take delivery within 2 working days at the latest.

Not a problem. All sorted. One happy customer and fully operational production line.

The Bosch Rexroth PV7 vane pump has an adjustable displacement, medium operating pressure and with its low operating noise, long life cycle and excellent control quality is well suited to a variety of industrial applications. Other features of the PV7 pump include:

  • BR PumpSizes between 14 … 150.
  • Frame sizes 10, 16, 25, 40, 63 and 100.
  • Nominal pressure up to 160 bar.
  • Maximum flow of 270 l/min.
  • Extended bearing life cycle thanks to hydro dynamically lubricated plain bearings.
  • Low hysteresis.

So, if you’re looking for a hydraulic pump you’ve come to the right place. Leading hydraulic pump manufacturers, direct equivalents and repairs. You name it, we do it.

Hydraulics CatalogueVisit our catalogue to view some of the Bosch Rexroth GoTo products we have within our range. This is, however, just a sample of some of the products that we regularly supply, so if you can’t find what you’re looking for, or aren’t even sure what you need then call us or complete our Stock Enquiry Form.

If you can’t find what you’re looking for then complete our Stock Enquiry Form or for more technical advice contact one of our experienced hydraulic engineers on: 0845 644 3640 or via: sales@hydraulicsonline.com

Bosch Rexroth A10VSO Variable Displacement Pumps

One of the most popular products from the Bosch range is the A10VSO series pumps; an A10 VSO 10 unit is pictured here. These axial piston variable displacement pumps are of a swashplate design and create little noise and have a versatile controller program with a short time control. Suitable for mobile and industrial open circuit applications, flow is proportional to the drive speed and the displacement.

Bosch Rexroth A10 VSOSome of the features of the A10VSO pumps include a: nominal pressure of 280 bar, maximum pressure of 350 bar, maximum speed of 3300 rpm, displacement of 18cm³ and a long life cycle.

We can offer the axial piston pumps as a brand new pump from the Bosch GoTo programme, as factory built specials or we can alos provide a service exchange unit or repair. All of the pumps are built and tested at the Bosch Rexroth Service Division to ensure you receive a quality product.

Hydraulics CatalogueYou can find lots more information here on Bosch Rexroth or you can hop over to our catalogue to view some of the Bosch Rexroth GoTo products we have within our range. This is, however, just a sample of some of the products that we regularly supply, so if you can’t find what you’re looking for, or aren’t even sure what you need then call us or complete our Stock Enquiry Form

 

Bosch-Rexroth-Hydraulics

Bosch Rexroth Tie Rod Cylinders

A long-standing customer, a leading global provider in the oil, gas, power and water markets, recently took delivery of the two Bosch Rexroth CD70 Series tie rod cylinders with trunnion mount, pictured here.

Bosch Rexroth offer a comprehensive range of hydraulic cylinders including: tie rod cylinders, mill type cylinders and large hydraulic cylinders together with other cylinder accessories and spare parts – click here for more information. Features of the Bosch Rexroth CD70 series tie rod cylinder include: a piston bore ranging between 25mm-200mm, piston rod ranging between 12mm-140mm, a stroke length of up to 3000mm and a nominal pressure of 70 bar.

If you are looking to source a Bosch Rexroth tie rod cylinder, or in fact any other branded hydraulic cylinder, we have widespread, competitive access to hydraulic cylinder (ram) manufacturers from around the world.

Hydraulic Cylinders

Hydraulics CatalogueYou can find lots more information here on Bosch Rexroth or you can hop over to our catalogue to view some of the Bosch Rexroth GoTo products we have within our range. This is, however, just a sample of some of the products that we regularly supply, so if you can’t find what you’re looking for, or aren’t even sure what you need then call us or complete our Stock Enquiry Form

We can also supply custom-made hydraulic cylinders to suit your specific application, requirements and operating parameters; just complete our Bespoke Cylinder Design Form and one of our hydraulic engineers will get back to you. Don’t worry if you don’t know all the details, just provide as much information as you can.

Bosch Rexroth R901269280 Float Level Switch

Float switches are switching devices operated by a float that is in turn moved by a fluid. They are used for the regulation of fluid levels in reservoirs. Two firmly set reed contacts, which are switched by permanent magnets integrated in the float, are provided in the sliding tubes.

One of our regular customers, an amusement ride manufacturer and maintenance company who operate all over the world, needed a Bosch Rexroth float level switch series 1X for one of their latest projects.

 Bosch Rexroth Float Level Switch

 The Bosch Rexroth R901269280 float level switch is suitable for a:

  • maximum operating pressure of 1 bar
  • maximum switching point of 1140mm
  • hydraulic fluid temperature range between -20-80 °C
  • temperature range (ambient) between -20-85 °C

Hydraulics CatalogueYou can find lots more information here on Bosch Rexroth or you can hop over to our catalogue to view some of the Bosch Rexroth GoTo products we have within our range. This is, however, just a sample of some of the products that we regularly supply, so if you can’t find what you’re looking for, or aren’t even sure what you need then call us or complete our Stock Enquiry Form

 

Bosch-Rexroth-Hydraulics

Bosch Rexroth ATEX Cetop Solenoid Valve

The term “ATEX” comes from the French “atmosphere explosibles”; it is the name given to the framework for controlling explosive atmospheres and the standards of equipment and protective systems used in them…

If you use or supply hydraulic equipment that may be used in potentially explosive atmospheres or your workplace involves the use of flammable materials that could create a potentially explosive atmosphere, then ATEX applies to you.

Preventing releases of dangerous substances which can create explosive atmospheres, and preventing sources of ignition are two widely used ways of reducing the risk. Using the correct equipment obviously plays a really big part too.

The good news is that identifying and sourcing non-standard, specialist hydraulic products such as  “Intrinsically Safe” or “ATEX“ certified hydraulic equipment is all in a day’s work to the team here.

The Bosch Rexroth ATEX-rated cetop solenoid valve pictured here was supplied to a returning customer, a leading global independent service provider to the oil and gas industry. Some of the features of the ATEX-rated solenoid valve include a:

  • Maximum operating pressure of 350 bar;
  • Maximum flow of 1100L/min;
  • Range of application in accordance with the explosion protection directive RL 94/9/EC II3G; II3D
  • Solenoid EEx nA II T140 °C as per DIN EN50021 and IP 65 T140 °C as per DIN EN 50281

Hydraulics CatalogueYou can find lots more information here on Bosch Rexroth or you can hop over to our catalogue to view some of the Bosch Rexroth GoTo products we have within our range. This is, however, just a sample of some of the products that we regularly supply, so if you can’t find what you’re looking for, or aren’t even sure what you need then call us or complete our Stock Enquiry Form

 

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