中文名称：
厂家：
产地：斯洛文尼亚
About Us
Enstroj is a company which is devoted to technological development, production and sale of high-powered, low-weight, high-efficient EMRAX electric motors, controllers and other electric components (chargers, balancers ...).
The company's manufacturing facilities are located at Radomlje, near the capital of Slovenia – Ljubljana.
Products quality is based on the years of experiences, knowledge, care for natural environment and future-focused view.
Enstroj holds the patents for the EMRAX electric motors. Patent no.: P-201500146.
History
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Enstroj company was established in 1991. Since then it has been producing and developing unique innovative objects for many different organizations – TV stations, theatres, opera ... Firstly many products have been made for self use and then became the selling products - for example: cars, transmission gears, electric propulsion system.
In the year 2000 we directed into electric motor development, because there was no suitable electric motor in the world market for our application – electric glider plane. After years of researches and tests of the motor, we reached our goal - in 2009 we developed the prototype of world's first high-powered, low-weight, high-efficient electric motor, named EMRAX motor. The EMRAX motor was improved at the beginning of 2010. After last tests we started serial production, which brought favorable prices.
Today we are working with a number of manufacturers to provide electric motors and components for electric systems (electric drives for planes, cars, boats, wind fields ...).
Developing electric motors
Electric glider plane
Roman Susnik upgrated electric glider plane Apis with electric self lunch system. He also made some improvements on the canopy and propeller shape. He added retractable wheel instead fixed.
In 2004 kit version of Apis glider plane was upgrated. Besides developing an electric propulsion system, we also change the canopy design, made more effective inner ventilation, developed the retractable wheel with shock-absorber and many new designs for electric power system. The retractable wheel improves L/D = 41:1 and it also visually improves the stream line of the plane. The doors on the body are closed when the motor with the propeller is outside or inside of the fuselage. We also made a special trailer for Apis EA1.
EMRAX 208 motors/generators
Graphs for EMRAX 208 High Voltage with Combined Cooling (IP21):
Note! Graphs do not show totally the same maximum efficiency and maximum RPM as described in Technical data tables. We are preparing new test graphs from Letrika company, which will show the same specifications as listed in Technical data tables.
For EMRAX 208 Low Voltage and EMRAX 208 Medium Voltage graphs are simmilar to EMRAX 208 High Voltage. The difference is only in voltage and current. These two parameters can be read from the Technical data table for Low and Medium Voltage motor. Low Voltage motor needs approximatelly 4 times higher current and app. 4 times lower voltage for the same power/torque compared to EMRAX 208 High Voltage. Medium Voltage motor needs approximatelly 50% higher current and app. 1/3 lower voltage for the same power/torque compared to EMRAX 208 High Voltage.
EMRAX 228 motors/generators
Graphs for EMRAX 228 High Voltage with Combined Cooling (IP21):
Note! Graphs do not show totally the same maximum efficiency and maximum RPM as described in Technical data tables. We are preparing new test graphs from Letrika company, which will show the same specifications as listed in Technical data tables.
For EMRAX 228 Low Voltage and EMRAX 228 Medium Voltage graphs are simmilar to EMRAX 228 High Voltage. The difference is only in voltage and current. These two parameters can be read from the Technical data table for Low and Medium Voltage motor. Low Voltage motor needs approximatelly 4 times higher current and app. 4 times lower voltage for the same power/torque compared to EMRAX 228 High Voltage. Medium Voltage motor needs approximatelly 50% higher current and app. 1/3 lower voltage for the same power/torque compared to EMRAX 228 High Voltage.
EMRAX 268 motors/generators
Graphs for EMRAX 268 High Voltage with Combined Cooling (IP21):
Note!
EMRAX 268 HIGH VOLTAGE (up to 700 Vdc controller voltage) was tested in Letrika company, with their controller which can work up to 400 Vdc maximal. This controller is not powerfull enough to get maximum performances for EMRAX 268 High Voltage. We used this controller, because it was the only option for first tests. Anyway it can be used for this motor type, but all performances (power/torque) will not be the highest that you can get from this motor.
EMRAX 268 can deliver 500 Nm of peak torque. Graph below shows 400 Nm of maximum torque - this is because the opposite generator on test bench can be loaded maximal on 400 Nm. To get full motor power we need more powerfull controller, which can deliver higher phase current or higher voltage (controller, that we used for testing has max voltage 400 Vdc).
Cooling conditions at the time testing are described in the graph below. Water cooling flow at the time testing was not optimal (app 3,5 litres per minute) - differece between inlet and outlet water flow was too high. We recommend at least 7 litres per minute to get optimal temperature difference between inlet and outlet water flow.
We are very satisfied with efficiency, which is up to 98%.
To get the most power of EMRAX 268 High Voltage we recommend Unitek Bamocar D3 up to 700 Vdc controller (or other contollers up to 800 Vdc). For EMRAX 268 Medium Voltage we recommend Letrika controller up to 400 Vdc or Unitek Bamocar D3 controller up to 400 Vdc. This voltages are also listed in the Technical data table below.
Medium voltage EMRAX motors can run on high voltage applications to achieve higher rotation (according to Technical data tables). Higher rotation can be achieved also with magnetic field weakening - this is valid for all types of EMRAX motors. In this case the motor power is the same in all ranges of higher motor speed.
For EMRAX 268 Low Voltage and EMRAX 268 Medium Voltage graphs are simmilar to EMRAX 268 High Voltage. The difference is only in voltage and current. These two parameters can be read from the Technical data table for Low and Medium Voltage motor. Low Voltage motor needs approximatelly 4 times higher current and app. 4 times lower voltage for the same power/torque compared to EMRAX 268 High Voltage. Medium Voltage motor needs approximatelly 50% higher current and app. 1/3 lower voltage for the same power/torque compared to EMRAX 268 High Voltage.
Other products in the past
Before we started electric motor development, we had been producing and developing unique innovative objects for many different organizations – TV stations, theatres, opera ... We had been also producing other innovative products - cars, transmission gears. All of these products were made by Roman Susnik, who is director of company Enstroj.
Here are some examples:
Unique sport cars
In 1985 it was impossible to buy a special unique sport car for affordable price.
So Roman Susnik made it by himself.
He says: “In the beginning when I was preparing the plans – I had many ideas about the shapes and which spare standard parts from other cars I could use to include in my project. First I decided to use many parts from Zastava 101. Later I improved a few things on my project, so I used the motor and some other things from Volkswagen - public car Golf turbo diesel. The shape of the car was built from polyester substance with fiberglass. Twenty-six pieces were fixed on the fundamental iron construction. This construction was the fundament for the motor, transmission gear, wheels and other necessary things too. The car looked perfect and it was the first car in Slovenia which had a unique sport design. I got the first price on the public exhibition in 1990. I made some improvements on projects for many types of cars - especially on sport cars in that time. So I made another special car which is called “ avtocross “.”
Hydroelectric power stations
Saving the energy - Why not? – If we are doing things with efficiently, we need less input of energy, we spend less money and we can get a better effect. The most important thing is: Don't pollute the world - we must save our beautiful, unique nature!
In 80´s Roman Susnik also made few HPS-s.
He says: “One of them was situated near my parent’s house. I made them because I wanted to save the energy and provide electricity for my house in case the main electric power station broke down.“
Transmission gears
In 80’s Roman Susnik also made transmission gears with 5 speeds. In that time cars had transmission gears with just four or less speeds. Nowdays we can find the cars with six gears forward and - it is common - one for reverse.
He says: “I improved the transmission gears on Zastava 101 and Yugo and added the fifth gear. I made about 150 transmission gears for five speeds between 1985 and 1987, and of course earned enough money to buy the building plot for my new house.”
House
He also designed and made his own house.
Stage scenes
Roman Susnik also made many stage scenes. He has done many stage scenes for theatres: Mladinsko gledališče, Cankarjev dom, Narodno gledališče; TV studios: RTV, opera, fashion creators, etc. Here are a few famous scenes:
