Hydraproducts Blog

Get in touch today to discuss your requirements

Call: (+44) 01452 523352

Hydraproducts Blog


All the latest news and information from Hydraproducts.

World's smallest hydraulic apparatus ben lee

Hydraproducts manufactures micro hydraulic packs, the smallest of which is the unidirectional pack at 87mm square.  These tiny hydraulic motors are often used in brakes and clamps, for mobility equipment such as powered wheelchairs and lifts, where space is at a premium but the power output still needs to be high enough to effect the actions required; up to 5 LPM. 


Reversible micro packs are also available, although they are slightly larger, given that they must operate in two directions.  Where the unidirectional packs use gravity to return back to their original position using solenoid and check valves, the reversible models use hydraulic flow to effect movement in both directions.  These are often used in applications where tension is to be achieved across a component, or where fine positioning is very important, as the double direction movement can be tuned to exact position required.  Common uses include mobility products such as lifts and wheelchairs; as well as bath lifts and other lifting equipment that needs to lower and rise within the same unit.


The reversible power packs are also available mounted to a cylinder for complete actuator manufacturing, and come with a selection of mounting plates for easy installation within whatever apparatus requires dual-direction hydraulic motion.  These kits are also fitted with manual override function and have thermal relief valves, to release excess pressure from overloading or thermal expansion, which the solo units do not.


YouTube user maskinsmidjur has created, what seems to be, the world's smallest hydraulic bottle jack, which he claims is capable of lifting up to 1100 kg – a video he posted, shows him using the tiny jack to lift one side of his car.  The jack itself is just over an inch tall and functions exactly as the standard sizes do.  He made the jack himself and has other videos showing his miniature creations, which include a crossbow and bear trap.  Unfortunately, the mini hydraulic jack is not available to buy, which is a real shame as it would make a perfect present for a hydraulic engineer or mechanic.  Recreating this jack would take some real skill and dedication to make something this small, and perhaps this is the preserve of miniature model enthusiasts.  It would certainly make a great addition to a scale model of an automotive workshop and would even come in handy for propping up loose hanging doors, as it would slide in easily underneath.


The smallest genuine hydraulic jack we could find is this bottle jack, from SGS Engineering.  Capable of lifting up to 10 tons it operates at 700 bar with a 9.1 ton load, and lifts from 120mm to 149mm.  The jack can be used vertically and horizontally and is a versatile little piece of equipment that would be very useful in many industries, as it is small enough to slide into very narrow gaps.  There are models of hydraulic jacks available for remote control car enthusiasts, and they might make a good conversation piece in a workshop office, but many of these models actually use a spring mechanism to mimic the movement, rather than real hydraulic technology.


Building one of these tiny jacks would be a great project for getting would-be engineers into the world of hydraulics and understanding how they work, as well as the many applications of hydraulic technology and the equipment it is used in.  With access to metalworking equipment, a very small hydraulic jack could be fabricated using the micro packs from Hydraproducts and some sheet metal, resulting in a very impressive science project for budding engineers or a nice conversational piece for hydraulically minded people. 

Comments are closed.


hpu hydraproducts Hydraulic Equipment hydraulic fluid hydraulic oil hydraulic power Hydraulic power packs hydraulic power units Hydraulic Pumps Hydraulic System Maintenance Hydraulic Systems Hydraulic Troubleshooting ATEX reference numbers cavitation Electrohydraulic Electrohydraulics History of Hydraulics hydraproducts hydraulic Hydraulic Circuit Design hydraulic circuit diagram hydraulic components hydraulic cylinder hydraulic cylinders hydraulic design hydraulic equipment hydraulic filters Hydraulic Fluid hydraulic fluid contamination Hydraulic fluids hydraulic hose failure hydraulic hoses Hydraulic machinery hydraulic machines hydraulic maintenance hydraulic mechanism hydraulic mechanisms Hydraulic motors Hydraulic oil hydraulic oil viscosity hydraulic parts hydraulic piston pumps Hydraulic Power hydraulic power pack hydraulic power pack uses hydraulic power packs hydraulic power systems Hydraulic power unit hydraulic power units hydraulic powered security systems hydraulic powerpacks hydraulic pump hydraulic pumps hydraulic reservoir design Hydraulic Seals hydraulic system hydraulic system design hydraulic system failure hydraulic system maintenance hydraulic system problems hydraulic system repairs hydraulic system safety hydraulic systems hydraulic tilt mechanism hydraulic tools Hydraulic Valves hydraulics Industrial Hydraulic Power Units maintaining hydraulic systems micro hydraulic power packs micro power packs Mini hydraulic power packs oil contamination remotely operated vehicles subsea equipment subsea hydraulic power units subsea hydraulics system maintenance troubleshooting hydraulic systems