Product category:
Hydraulic Components
News Release from: Eriks UK | Subject: Hydraulic power packs
Edited by the Engineeringtalk Editorial
Team on 20 March 2003
Hydraulic power pack makes the earth
move
Wyko has beaten both national and international competition to produce a giant hydraulic power pack for a seismic testing rig.
Wyko has beaten both national and international competition to produce a giant hydraulic power pack for a seismic testing rig The unit provides the hydraulic power to three very large cylinders, each one weighing 47t, giving a 25m2 table the means to move in x, y and z planes
This article was originally published on Engineeringtalk on 9 Jul 2008 at 8.00am (UK)
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The power behind this unit is capable of producing the earthquake conditions needed to test structure foundations for inherent faults.
From receiving the basic design plans to final production of the power unit took an impressive 14 weeks, one of the decisive factors in winning the order.
Senior Project Engineer at Wyko Fluid Power, Mark White, explained that "only a handful of hydraulic system builders have the expertise and capability to produce a unit of this size in the time scale required by the customer".
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Within nine days of being asked to quote for the project, PWI had submitted a detailed offer, including full engineering drawings.
This is understandable when one considers that the complete unit weighs in at over 17t and supplies oil at 2100 litre/min at 280bar pressure to the test rig control cylinders.
The oil is drawn out of the giant 10kl reservoir by two 1400 litre/min boost screw pumps driven by a pair of 37kW motors.
The oil is then fed through large bore pipe work to a series of six axial piston pumps powered by 190kW motors, three either side of the tank.
Reflecting on the feasibility of the project, White recalls that: "The customer, who has a long history of specifying hydraulic systems, hardly believed it was possible to meet the deadlines given.
However, the unit was delivered to the Middle East on time due to the fact that many of the required skills of design, fabrication,hydraulic fitting and test are permanently onsite here, avoiding reliance on outside specialists".
He continues, "For example, our team here at the Coventry Fluid Power Centre took the original plans for the unit and considerably enhanced the design despite the time constraints.
Also, the pressure rating of the unit required the large bore pipe work to be specially welded and fashioned in a quite intricate design, which involved nearly one hundred welded joints".
Wyko Fluid Power's production capabilities in terms of equipment and space allowed them to build the complete unit and test the system up to 300bar on site.
This alone required the purchasing and handling of 12kl of ISO VG 32 mineral oil and installation of an 800kVA diesel engine driven generator.
Another factor in the success of the project was the way that divisions of the Wyko group and supply partners such as Brook Crompton, Rexroth and Pall work together.
Immediate access to their comprehensive selection of stock improves the speed and finished quality of Wyko's engineering services allowing any division to specify the ideal components for a project without having to worry about availability issues.
This, combined with engineering knowledge and experience allows Wyko Fluid Power to deliver a world-class service to its customers, whether it is a small 20 litre pack for the food industry or gigantic units like the one described here. Request a free brochure from Eriks UK ...
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