Pic 1


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Pic 2 Weka

Weka Core Motor

  • Drilling Hand Held
  • Drilling Rig Operated
  • Drill Rigs and Accessories for drilling
  • Sawing
  • Drilling Technology
  • Sawing

    Weka HS 40 Emma Diamond Hand Saw
    completely closed blade guard closed, water cooled high frequency motor waterproof protection class IP 55

    Technical Data:
    -Type : HS 40
    -Rated Voltage : 230 V
    -Nominal Power : 3700 w
    -Output Power : 2800 W
    -Cutting Depth : 165 mm
    -Saw Blade : 400 mm
    -Mounting Hole :15,85 (5/8") mm
    -Speed : 1/min2600
    -Weight : 8,5 kg
    Hello, I am Emma, the new diamond hand saw from WEKA. I cut with my diamond saw blade with 400 mm diameter concrete walls and masonry up to 165 mm deep and all this manually operated. If required I can be mounted on a very simple profile rail, so that my operator can hold and guide me even easier.
    High frequency drive
    My small motor after all has a power of 3700 W and all this at a mains voltage of 230 V. It is water cooled with the cooling principle which is patented by WEKA. The cooling system is thereby completely separated from the electrical part of the motor. If on very tough use of the motor my seals should fail, the cooling water will not enter into the interior of the motor, but only to the outside.
    Motor protection
    My motor current is controlled according to the requirements and is limited to a maximum value. Thus I can not be overloaded. The temperature of my motor is controlled constantly. If I am overloaded too much or cooled too less, my power electronic switches me off before something happens to me.
    Motor control
    I am controlled by a very efficient frequency converter which is stored in a small aluminum box. It provides me with the required energy, controls my power input and speed. The integrated PFC (power factor correction) makes sure that I do not take any wattless current form the mains, but only energy which I can convert into mechanical power.
    Handling and operation
    Via the converter FU 4 I am connected to the 230 V mains. By turning the handle my dip feed is released. The diamond saw blade is now dipped to the requested cutting depth manually and my dip feed is now locked again via the handle. If my handle is released and no dip feed is applied the saw blade returns again into the blade guard completely by a gas spring. By this design my operation safety is increased. By the adjustment of the parallel rockers the ergonomic position of my handhold arrangement is changed only insignificantly. If I am supposed to cut dry, my motor can still be water cooled, while the water flow is deflected by a by-pass valve.
    Stability and weight
    Due to the favorable arrangement of the parallel rockers I am very stable and can be easily moved linearly by the four guide rollers. As measured by the high nominal power of 3700 W I am with 8,5 kg light and handy.
    Corrosion and water protection
    All considerable parts on myself are rust-proof. My casing and my guide bars are made of aluminum and all significant operating elements are made of stainless steel. My converter and myself are not only very powerful and robust, but also splash water proof according to protection class IP 55 according EN 60 529, i.e. on conventional use no water can enter into my interior.
    Oil lubrication
    Of course my gear is - like all gears from the WEKA family - provided with an oil bath lubrication. And thus efficient, low in maintenance and long-living.
    The operation hours counter which is integrated in my micro controller allows myself to work for 300 hours permanently. Then I show my operator that I want to be maintained by only switching on when my ON button is pressed three times