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Kees Van Der Westen Mirage Coffee Machine

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Limited Stock
From$18630

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$9.95 Australia-wide
Sold & shipped by Di Pacci Coffee Company
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This is a Kees Van Der Western espresso machine. The Mirage Duette is the 2 group of the family and the Mirage Triplette is the 3 group. You'll find these coffee machines pumping out coffee in the more serious of coffee places.

It has a unique styling which grabs anyones attention. It has E61 group heads with pre-infusion. There are a number of options which can be fined tuned for what you like, such as foot pedals for your steam wand etc. Please contact us for this sort of requirement.

FEATURES

  • Auto-back-flush program, all groups pressurize and discharge simultaneously 8 times.
  • Energy saving hot water system. Some cold is added to the hot water, so less heated water is needed.
    This mix provides a steady, non-spattering stream with the correct temperature to prepare Americanos.
    The hot water is controlled by a quick to adjust timer.
  • Choice of touch pad to activate the group, offering 4 automatic volumes plus continuous, or the Bastone lever,
    offering 2 automatic volumes plus continuous. The touch pad can easily be swapped for a Bastone bracket, or vice versa, even later.
  • Drip tray adjustable in height, optionally a raised tray for espresso cups is available.
  • Stainless steel filter holders with KvdW POM handles.
  • PID controlled temperature, with energy saving Eco mode for nights and/or weekends.
  • Standard equipped with a Progressive Pre-Infusion Cylinder per group. This allows a finer grind, creating more surface,
    so a higher yield in the cup, less chance on channelling, preventing fines to travel down.
  • Wide choice in filter baskets, both sizes as types.
  • Rubber group gaskets remain flexible forever, do not become hard or brittle.
  • Membrane type group screen, very nice dispersion, less coffee sucked up by discharge of pressure at end of extraction. Remains clean longer.
  • Heavily protected heating element (extra safety level probe, cut-out switch with feeler against element in water,
    machine shuts down when any of the solenoid valves remains open for longer than 120 seconds).
  • Entire frame in stainless steel only, powder coated in crackle black.
  • Large boiler capacity: 13ltr. with Duette, 19ltr. for the Triplette.
  • Elevated position of body, easy cleaning of bar surface.

BOILER - HEAT-EXCHANGER - GROUP

The Mirage`s heating system is based on the so-called thermo-syphon system. It consists of one large copper boiler (13ltr for the Duette, 19ltr for the Triplette), equipped with a heat-exchanger for each group, running vertically slanted across the boiler.

This HX is connected to the rear of the group by a thick tube running from top of HX to group and another tube running from rear of group to bottom of HX, completing a vertical circuit.


THERMO-SYPHON LOOP AT WORK

The water in the HX is heated by the hot water and steam surrounding the HX in the large boiler. This is an extremely quick way to heat water, thanks to the massive energy in the 125 degrees C. steam boiler and the fast heat transferring capabilities of the copper. It is far more efficient than a heating element. The capacity of the HX therefore may remain relatively small. We use HX`s of 450cc per group.

Heat always wants to go up: the heated water becomes lighter and moves upwards. This flow of hot water leaves the HX, enters the thick tube attached to the top of the HX, then runs towards the group. The group is installed slightly higher than the top of the HX. The group is a massive piece of almost 4 kg of brass. Brass being a very good heat transferring material, soaks up heat from the water when this enters the 35cc chamber at the rear of the group.

The group becomes hot, the water losing much of its heat becoming heavier and starts to sink through the lower thick tube, running from rear of group to the bottom of the HX. Arriving there, the water re-enters the HX, heats up again and all starts anew. The temperature inside the HX is much higher than the normal operating temperature for the group. Capacity to heat the group is thus ensured very well.

This thermo-syphon loop, travelling up from HX to group, then returning to bottom of HX, is driven solely by the heat inside the large boiler. There is no pump or any other device. When the machine is on and at idle (no coffee being made), the thermo-syphon loop is flowing constantly all by itself. As heating the water inside a closed system also means pressure will rise, there is an expansion valve installed. This is adjusted at the workshop to start releasing drops at 11-12 bar. The group solenoid valve has a rating of 15 bar and may act as a secondary expansion valve for extra safety.


SYSTEM AT IDLE

The group sitting at the very end of the thermo-syphon loop is a vitally important stabilizing factor. It is after all the last part water travels through before hitting the coffee, during brewing. Its temperature therefore is important and should be very close to the desired temperature of the brewing water.
The temperature of the group body can be adjusted simply by having more or less hot water flow through its rear chamber. The temperature inside the HX being quite a bit higher than the desired temperature for the group, the thermo-syphon loop needs to slow down, needs to be restricted.
With the Mirage we adjust the boiler to 125 degrees Celsius. To get the group body temperature at low nineties we install a standard restrictor at the top of the HX with a passage of 1.5mm.

With different restrictors installed it is quite possible to operate one machine with temperatures adjusted differently from group to group, for example to accommodate for the use of lighter and darker roasted coffees. As an op...

Estimated Delivery Time Frame:2-7 business days

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