4
2.0 General instructions
2.1 Technical description
The
BELUGA SXM
and the
ARRA
drill attachments represent a whole new generation of drive units for stone
cutting. The exceptionally comprehensive modular system offers the flexibility needed today when perform-
ing cutting work in concrete and stone. To achieve this, newly developed high-frequency motor parts are
used in the motor. The frequency range is controlled by the frequency converter from 0 - 1000 Hz integrat-
ed into the Powerbox. The Powerbox can be operated on a single-phase 230V mains supply as well as on
a 400V mains supply with up to 12 kW. Our motors automatically detect the correct voltage and then work
at the allowed power rating for the voltage. At 1000 Hz, the rotor reaches a speed of 30.000 min
-1
. A major
benefit lies in the exceptional weight / power ratio (motor power output = 8 kW / weight = 12.5 kg -> 0.64).
Using conventional technology e.g. type BBM33extra (motor power output = 2.4 kW / weight = 13.5 kg ->
0.17) This means that the weight of the machine has been reduced fourfold using the high-frequency tech-
nology. Further benefits lie in the stepless speed control. This enables the best speed to be assigned to
each tool diameter, in order to attain the best possible cutting speed on the tool. During work, the speed
can be steplessly reduced if you come up against steel reinforcements and thus can be optimised accord-
ing to the progress of the work. Here, you can run the unit at much higher cutting speeds (Attention! de-
pends on the tool) and in doing so, the progress of the job can be speeded up by up to 200%. With conven-
tional machines, the torque drops very sharply at the higher speeds and therefore, this advantage does not
apply here.
2.2 Applications
All attachments can be used with drive units, which are fitted with the DR. BENDER quick release system.
If you are using custom-built machines, the details on the quotation and the order confirmation also apply.
If suitable saw blades and drill bits are used, a wide range of materials can be cut:
- Concrete (even with strong reinforcement)
- Sandstone and limestone
- All building materials for solid walls
- Asphalt road surfacing
3.0 Transport and storage
3.1 Transport
Warning
The attachments must be inspected for transport damage after receipt. Any
damage present must be recorded in writing.
3.2 Storage
The storage location should be dry, clean and at a constant temperature wherever possible. In order that
the lubrication film in the bearings and the seal systems does not separate, the drive shaft should be turned
several times manually after a lengthy storage period, e.g. at monthly intervals. The roller bearings of the
devices should be replaced (or re-lubricated) if the period between delivery and commissioning is more
than 4 years. This period will be significantly reduced if the storage conditions are unsuitable.
