Rocket Espresso R 58 Cinquantotto
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Rocket Espresso R 58 Cinquantotto
The Rocket Espresso R 58 Cinquantotto is a premium model from Rocket Espresso. The coffee maker has a dual boiler system, i.e. it has two independent separate boilers that are controlled by PID control for optimal extraction of different styles of coffee roasting. Rocket Espresso has its own boiler technology - this means not only precise adjustment of the extraction temperature, but also a unique hot water circulation system through the head (E61 head) allowing unprecedented thermal stability of the espresso boiler. The microprocessor controls the water level control in both boilers, their automatic draining and also solves the indication of low water level in the water container. Of course there is a professional rotary pump and the possibility of using a water tank or connecting to the water supply. Alternatively, it is also possible to connect the coffee machine to the waste. All the functions of the coffee machine are conveniently set on the elegant communication display, which is connected on the side, and then you can disconnect the display to keep the design clean. The coffee machine gives you a quality espresso without compromise.
Key features of the Rocket Espresso R 58 Cinquantotto lever coffee machine
- Home lever coffee machine for demanding users
- Water tank capacity is 2.5 l
- External communication display that can be disconnected
- Dual boiler system for independent extraction and steam
- PID control for precise temperature setting of both boilers
- E61 head with unique hot water circulation system
- Possibility to prepare two cups at the same time
- Professional rotary pump
- Dual mechanical pre-infusion system
- Boiler safety valve
- Stainless steel arm for steam
- Electronic water level control
- Possibility to connect the coffee machine to water and waste
- Energy saving mode
- Quality real espresso without compromise
Direct connection to water and waste
The coffee machine can be connected directly to the water supply. If it is connected directly to water, it is recommended to connect a suitable water filter (softener) between the water source and the coffee machine. It is possible to switch the water source between the line and the storage tank. Connect to the water supply line with the included 3/8" F pressure hose or extend/connect the included hose as required. It is also usually possible to connect to the waste. On the body of the coffee machine (under the waste container) there is a hose with a diameter of 14 mm and also included is a rubber flexi hose with spring reinforcement, inner diameter 14 mm, outer diameter 20 mm.
E61 head
In the 1960s, a new technology came on the market that soon became one of the most widely used principles for stabilizing the temperature of water in coffee extraction. The E61 head is connected to the water circuit (boiler), the water in the boiler then circulates through the E61 head chamber. The head is thus heated by the water from the espresso boiler and thus contributes to temperature stabilization during extraction. The technology is one of the most widely used technologies today.
Coffee machine head - professional size (58 mm)
As for the 58mm dimension, it's not a completely accurate indication of the size of the head itself. The professional head and the inner diameter of the lever are slightly larger, 60 mm. However, for every barista, the most important figure is the dimension that indicates the frother, which in this case is the 58 mm - that's why these types of coffee makers are known as professional head 58. Nevertheless, it is advisable to pay more attention to the choice of the base of the frother. Manufacturers are increasingly using filters that can use packers with a base diameter of up to 58.55 mm. It is therefore always necessary to check which filters are included with the machine or which the barista wants to use.
2 independent circuits - dual boiler, 2 thermoblocks, 1 thermoblock + 1 boiler, PID control
The coffee maker, which has two independent circuits (two-barrel), offers not only maximum comfort of use, but also perfect control over the system and perfect thermal stability. There are two separate circuits/bottles in the coffee machine and each has its own heating element. It is therefore possible to set the espresso water temperature and the water temperature in the service boiler (hot water/steam) independently of each other. Alternatively, it is also possible to switch off the service boiler and use only the espresso boiler. PID control is one of the most widely used algorithms for precise control of the controlled variable. Since the explanation of this algorithm is more complex and is widely described in the literature, we offer a very brief description of the principle to outline the problem.
Boiler and three-way valve
A boiler is a container of a certain volume of water. The boiler can be heated actively by its own heating element or passively by another heat source. The larger the boiler volume and the more precise the temperature control technology, the more stable the espresso water. Water temperature control in the boiler is most often provided by a thermostat, electronic thermostat, preset or electronically, i.e. PID control. The three-way valve is a very important technical element in the equipment of a coffee machine. It opens/switches between the following paths - the hot water source for the coffee, the head of the coffee machine and the waste. When the coffee dispenser is switched on, the water supply to the head of the coffee machine is opened, the path to the waste is closed. When the coffee dispensing is switched off, the path between the head of the coffee machine and the waste is opened and the water source is closed. Thanks to this valve, the pressure in the head of the coffee machine is released after coffee extraction and the excess water is drained to waste. Based on this principle, it is also possible to carry out the correct maintenance of the coffee machine, the backflush.
Rotary pump
The rotary pump is used in professional coffee machines and in the higher class of home coffee machines. It is powered by a robust electric motor and, as the name suggests, works on the principle of rotation. It is possible to set the desired pressure directly on the pump using the bypass screw. The calibration screw is usually brought outside the body of the coffee machine and the user can conveniently calibrate the pressure. Calibration is done by inserting a blank filter (as in backwash) into the lever and switching on the water discharge. The pressure gauge displays the current set pressure, which you can decrease or increase by turning the screw. As a rule, you set it to 9 bar. The rotary pump has a very quiet and refined operation. The rotary pump coffee maker can be connected directly to the water supply, but when connecting to the water supply, it is strongly recommended to use a suitable water filtration between the water source and the coffee maker. Home coffee machines with a rotary pump usually have a water reservoir, so it is possible to switch the water source between the reservoir and the fixed connection.
Water tank
All home coffee machines have a water tank. It is recommended to insert a suitable water filter (softener) into the water tank. It is recommended that the water tank is thoroughly flushed at regular intervals. Domestic coffee machines with a rotary pump usually have a connection to the water supply in addition to the water tank, so it is possible to switch (mechanically or electronically) between the water source of the tank and the fixed connection.
Extraction time, shot timer
An important parameter during coffee brewing is the extraction time, i.e. the contact time between the coffee and the water. Generally, the extraction time for espresso is between 20 and 30 seconds. When making espresso from lighter roast coffee (new roasting trends), the extraction time can vary between 30 and 40 seconds. It is advisable to keep track of the extraction time during espresso preparation; more equipped coffee machines with a display have this timer, making it very convenient for the barista to keep track of the time.
Package contents:
Single outlet lever (+ single cup filter), lever with two outlets (+ two-cup filter), Blank bowl/filter (for maintenance), tamper/pen, a brush for cleaning the head, control panel, stainless steel frame (fence area for cups), microfibre cleaning cloth
Wattage:
Water bottle for espresso: 1400 W
Working boiler: 1400 W
Maximum power consumption in simultaneous operation: 1550 W
Specifications
Coffee Maker Type
Design
Features
Functions
Drinks
Equipment
Accessories Included
Dimensions and weight
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Specifications
| Code: | NYSkavo11 |
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