The Weycroft Macford company has
been established since 1948, designing the VP milking machine in
1967, with its unique award winning combination of Vacuum and
Pressure. The milk and pulsation systems were conventional with
the milk being moved from the cluster to the recorder jar by
vacuum. However the milk transfer and wash systems were powered
by compressed air, alleviating the requirement for a receiver
jar and milk pump, and providing a smooth and gentle transfer of
the milk from the recorder jar to bulk tank.
In the milking
parlour, the VP Control Valve allows the operator to switch
between milking [vacuum], wash [pressure] and transfer
[pressure], with the outlet valve below each jar providing the
seal between vacuum and atmospheric pressure during the milking
In the dairy, the
water heater is a pressurised cylinder controlled by a
configuration of hand operated lever valves, delivering a
mixture of hot water and cleaning chemical completely through
the milking system, back down the delivery line and out through
the repositioned clusters into the wash trough and to drain.
Whilst the complete
milking system is no longer available, a few spares are still available to maintain the operation of these systems,
but these are very limited in quantity.