Description

Sandvik 55059183 tandem hydraulic pump: what “tandem” means and what to check This is a big pump. One listing gives its weight as 82 kg, which tells you straight away it isn’t a casual swap. A wrong order means a crane lift, a shutdown and a pump that doesn’t fit. If you’re researching the Sandvik 55059183 tandem hydraulic pump, this guide explains what tandem means, what public listings show and what to verify before you pay. Advance Hydraulic Works imports and trades hydraulic pumps from Delhi NCR, and this is how we’d go through it with you. What is the Sandvik 55059183 hydraulic pump? A European parts seller lists it as a tandem pump with the comparison number 55059183, fitting Sandvik, weighing 82 kg, at €5,563.80. An Indian dealer’s pump list also names the Sandvik 55059183 Tandem Hydraulic Pump. The European price is one overseas listing, before Indian duties and freight, so it isn’t your price. But it gives a sense of scale for a pump this size. What “tandem” means A tandem pump is two pumps in one assembly. One pump is mounted behind the other and both turn on a common drive, so one engine or motor feeds two separate flows. Each pump can feed its own circuit, and the two don’t have to be the same size or series. That’s what one factory listing shows for this number. It describes a dual pump made of an A10VO110DFR1/31R plus an A10VO60DFR1/52R. Notice the two codes end differently, /31R and /52R. That suggests the two sections come from different series. It’s a reading of one listing, so check it against your own nameplate. 55059183 pump: what the codes may mean In Rexroth’s usual naming, the 110 and 60 are sizes, DFR1 is a pressure and flow control, the 31 and 52 are series numbers and R is right-hand rotation. Different sections with different series and sizes need different seals, controls and sometimes different oil flow, so a pump that looks right can still be wrong. The factory that published that listing calls itself a manufacturer of hydraulic pumps and motors and of replacement-brand pumps. That’s a clue that the listing is from an aftermarket maker, not from Sandvik. Treat its code as a lead to verify, not proof. Why size and weight matter here If the 110 and 60 are sizes in cc per revolution, as the usual naming suggests, then at 1,800 rpm the sections move about 198 and 108 litres per minute, roughly 306 litres per minute together. At 250 bar and full flow, that’s about 250 × 306 ÷ 600, around 128 kW, or about 171 horsepower. Variable displacement controls reduce that when demand is low. But the drive must still be able to supply it. That’s why you can’t test a pump this size on a small bench, and why 82 kg means planning the lift. This is illustrative arithmetic, not a spec sheet, so use your machine’s drive speed and the real model data. The method: sections, series, plate, handling Sections. Confirm the size, series and rotation of each section. Series. Check that each section’s code matches, including the part after the slash. Plate. Photograph the nameplate for all codes and part numbers. Handling. Plan the lift, the mounting and the drive coupling before the pump arrives. A worked example Say a seller offers a pump under this number and quotes a price. Ask five questions. What are the two section codes? Do they match your plate including the series after the slash? Is it new, rebuilt, used or aftermarket? What’s the weight and the mounting flange? And who gives the warranty? Now compare two offers. One answers all five in writing with a plate photo. The other answers two and says “same as OEM”. The second might be cheaper, but if it arrives with the wrong series on one section, you’ve lost a shutdown and a crane booking. The price gap has to cover that risk. This is an illustrative comparison, not a quote. Implementation steps 1. Photograph the old pump, its nameplate and any tags before removal. 2. Write down every code on the plate for both sections. 3. Note the machine model, serial number, drive speed and rotation. 4. Send everything to Advance Hydraulic Works and ask about availability. 5. Ask the seller to state condition, source, section codes and warranty in writing. 6. Ask for the weight and a photo of the actual unit’s nameplate. 7. Plan the lift and check the mounting flange and drive coupling before delivery. 8. Flush the system, fit the pump, prime both sections and start at low pressure. The usual mistakes are matching only the first section’s code, underestimating the weight and starting a dry pump. FAQs What is the Sandvik 55059183 tandem hydraulic pump? It’s a tandem pump listed beneath Sandvik reference 55059183, with two sections on a commonplace force. One manufacturing unit list describes it as two Rexroth A10VO-kind sections of different sizes. What is a tandem pump? Two pumps in one meeting, one behind the opposite on a common pressure. Each can feed its own circuit. How heavy is the Sandvik 55059183 hydraulic pump? One European list gives 82 kg. Confirm the weight for your actual unit and plan the raise for this reason. Can Advance Hydraulic Works supply a 55059183 pump? Send the gadget info, element numbers and nameplate pictures to Advance Hydraulic Works and ask about availability, supply and guarantee earlier than you dedicate. Why ought to both section codes match? Different sizes and collection mean distinctive flows, controls and seals. A mismatch on one segment could make the device run incorrect or harm the pump. Your next step Photograph the nameplate, note both section codes and send everything to Advance Hydraulic Works. You’ll know what you’re buying before you spend anything.