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Hydraulic Cylinder Seals Failure - The Main CausesWhen it comes to hydraulic cylinders, one of the main causes of failure is the seal. Although the cost of the seal may be marginal, the true expense comes from downtime and the loss of production.To save you this extra expense, let’s look at what might cause a problem with the cylinder that may result in hydraulic seal failure:The seal has not been installed properly. There are a number of problems that can go wrong with installing a s...
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Hydraulic Cylinder Seals Failure - The Main CausesWhen it comes to hydraulic cylinders, one of the main causes of failure is the seal. Although the cost of the seal may be marginal, the true expense comes from downtime and the loss of production.To save you this extra expense, let’s look at what might cause a problem with the cylinder that may result in hydraulic seal failure:The seal has not been installed properly.There are a number of problems that can go wrong with installing a seal, t...
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How to interpret DC motor performance curves?DC motor selection must be done by understanding the duty required by the application and comparing this to the dc motor performance of each motor-pump characteristic.There are two main performance graphs, Motor-pump performance and Motor Ratings.Motor-pump performanceThis graph shows two curves for each pump size(eg 3.3,4.2,5.0,5.8 and 6.1cc/rev). These are typical pump sizes for mini hydraulic power packs.The curve going down to the right represents...
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What oil reservoir size should I specify? Is it just about “three times flow rate”?
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Do I need a Hydraulic Cooler for my powerpack?A design decision to fit a hydraulic oil cooler like this can only be made with a full assessment of how much heat is going to be put into the oil and how much of that heat can the system dissipate without the oil overheating.The heat comes from inefficiencies or losses. The greater the inefficiencies the greater more power input will be required to overcome them. The inefficiencies will manifest themselves as heat. So the amount of extra input power...
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What battery cable size should I use?When connecting a DC hydraulic power pack to the battery it is important to get the cable sizing correct. The battery cable will carry high currents and they must be sized to minimise voltage drops. When a DC powerpack is running at full load currents up to 300 amps can be required.Maximum current draw of your DC powerpack can be estimated as follows, but for exact current figures the dc motor performance curves must be referred to.   500 Watt 8...
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Which Hydraulic Oil to use in my power pack?There are a wide range of choices over an even wider range of budgets, but the right hydraulic oil will prolong your machine life and reduce your overall running costs.Three initial questions must be answered:-1) In what type of equipment will the hydraulic fluid be used?2) How severe will the duty be?3) What operating temperature and pressures will be experienced?4) Environment food safe etcEnvironment food safe etcAnswers to these questions will lead...
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Hydraulic Power Pack Basics - Q&A What is the function of Hydraulic Power? The function of Hydraulic Power is to simply convert a primary drive source into a hydraulic fluid flow.
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