The WASSCO Vertical French Rack Machine Model WFR2 is
a semi automatic machine to hygienically strip soft material from the
bone of lamb, veal or pork racks, chilled or semi-frozen, presented to
it, to create the traditional French Rack cut from the ribs of lamb,
veal or pork.
It functions by directing jets of very high pressure water onto the
item to be stripped in a controlled cycle. The operator has only to
position the item in the product slot, close the product lid and wait
for the lid to open after few seconds before removing the finished
product.
The machine is designed to be simple and safe to use and maintain
so long as the instructions in this manual are fully complied with.
There are currently two variations of the machine - the Standard
model and the "L" model. The L model features a longer product bed and
a sliding
valve to prevent spray escaping when cutting short racks on this longer bed.
In all other respects it is the same as the Standard machine.
Three Options Available:
Option 1 : full water save WFR2L-1
This option means that when the machine finishes a cycle the water save valve shuts off and the water recalculates back to the water tank.
• Whilst this saves the water the down side to this system is some heating of the water in the tank as the energy dissipates as heat into the water.
• The pump is also generating maximum pressure all the time causing maximum wear on the components
• This pump station is much noisier.
• The pump also consumes 26kw/h the whole time the frencher is running.
On the positive side the machine only uses 1 liter of water per second and on average 6 liters per carcass @ 6 cc’s per minute = 36 liters per minute.
Option 2 : VSD drive WFR2L-2
This option gives you a variable speed drive on the pump and the pump only generates what it needs, the positive
points on this unit are.
• 1 liter per second and on average 6 liters per carcass
• The pump is not working hard and will have less wear and tear on the components
• Maintenance intervals lengthened so instead of changing oil every 3 months you would change the oil 6 monthly, seals from twice a year to yearly etc.
• The power consumption is a lot less, starting at 17k/h while frenching and 1.2kw/h while on water save. This is worked out on new nozzles.
• There is no water going back to the water tank thus no water warming up.
The down side to this option is that the unit uses slightly more water, .4/liter per second and on average 6 liters cutting and 1.6 liters on idle =45.6 liters per minute.
Option 3: VSD drive with full water save WFR2L-3(Major power and water savings)
This option gives you a variable speed drive on the pump and the pump only generates what it needs, the positive points on this unit are.
• 1 liter per second and on average 4.5 liters per carcass
• The pump is not working hard and will have less wear and tear on the components
• Maintenance intervals lengthened so instead of changing oil every 3 months you would change the oil 5 monthly, seals from twice a year to yearly etc.
• The power consumption is a lot less, starting at 17k/h while frenching and 1.2kw/h while on water save. This is worked out on new nozzles.
• The water going back to the water tank is only .4/liter per second thus no water warming up.
• The expected water consumption on 6 CC’s/min to be around 27 litres/min.
