Product category:
Hydraulic Components
News Release from: Parker Hannifin | Subject: VP1 pump
Edited by the Engineeringtalk Editorial
Team on 08 October 2004
Hydraulic muscle powers prototype
haymaker
Parker Hannifin's variable displacement VP1 pump has enabled an enterprising farmer to realise a novel idea, of combining a flat bed lorry with a standard hay bale loader.
Parker Hannifin's variable displacement VP1 pump has enabled an enterprising farmer to realise a novel idea, of combining a flat bed lorry with a standard hay bale loader The result is a one-man-operated multipurpose farm vehicle that replaces the normal two-man, two-vehicle hay baling operation
This article was originally published on Engineeringtalk on 20 Feb 2001 at 8.00am (UK)
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The farmer's first attempt foundered when the original hydraulic pump supplied with the bale loader proved to be far too large for the truck bed, and this was where Parker Hannifin stepped in with its VP1 pump.
Equipped with load sense control, as well as delivering the necessary hydraulic performance, it was only one third the size of the original pump that came with the bale loading system.
A Cambridgeshire-based Parker distributor, Volvo Truck and Bus - South, worked with the farmer to successfully mount the bale loader onto the chassis, with the VP1 pump and valve system delivering all of the motion and strength needed to lift and transport the huge bales.
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The bale loader attachment, a US made Haying Mantis, is mounted on two parallel rails that stretch from the front bumper over top of the cab and down to the flat bed surface.
The truck is driven up to a bale, which is then gripped by the Haying Mantis.
The gripping attachment (and bale), mounted on rollers and fixed to the rails to reduce friction, rides over the top of the cab and deposits the bales on to a "walking floor" which moves them back, in stacked pairs, to the rear of the trailer.
Previously the farmer was only able to move one bale at a time - with this system, he can move 10.
Parker Hannifin's VP1 pump can be close-coupled to a gearbox power takeoff (PTO) or to a coupling independent PTO which meets ISO7653:1985.
It offers variable displacement, low noise levels and a high power-to-weight ratio - all within a compact, lightweight, highly efficient and sturdy design.
It provides hydraulic systems with the correct amount of fluid at precisely the right moment, effectively reducing energy consumption and heat generation.
Another energy saving feature is offered by the pump's on-demand method of operation - it only pumps when required, saving on fuel costs.
Parker also supplied a VP1 unloading valve, which provides pump case cooling flow at low pressure while the vehicle is in transit.
An arm follower completes the system and is used to keep the hydraulic hoses together and prevent damage.
The bale loader, with a Parker system at its heart, has been successful enough for the farmer to consider the creation of a commercial version for sale to the agricultural market. Request a free brochure from Parker Hannifin ...
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