Twin-shaft mixing technology is suitable for all formulas and offers a wide range of benefits. The mixing procedure has a significant effect on the quality of the mixture produced and the economic efficiency of the production process. Watch the video to learn more about the use of the dry powder batch mixer (DMX) at the dry-mortar plant of Rethmisch GmbH.
Unlike single-shaft systems, which move the mixture to the center of the machine, the three-dimensional mixing concept of the twin-shaft batch mixer produces a more intensive exchange of materials, leading to short mixing times while consuming less energy.
BHS worm gears boast maximum operational reliability and a long service life, even under extreme loads. The gearboxes are attached to the mixing shafts without rigid connection to the mixing trough. The selected material pairing allows the BHS worm gearbox to compensate the load changes that occur each time the mixer is filled.
All of our twin-shaft batch mixers are equipped with high-quality motors. They are specifically designed for the load cycles generated.
The power is transferred via V-belt drives. Positioning the V-belt drives on the outside of the drive provides good accessibility when performing maintenance work.
The adjustable torque support is used for the alignment of the gearboxes. It also allows the gearbox to be fastened to the mixing trough without pressure, avoiding unnecessary loads on the gearbox toothing. This special feature is an essential prerequisite for achieving a long gearbox life.
A low-maintenance elastic coupling is installed between the gearboxes to synchronize the two mixer shafts.
The mixer shafts are reliably sealed with axial face seals. The shaft bearings are mounted on bearing lanterns and are physically separated from the shaft seals. This significantly increases the operational reliability of the mixer shaft bearings.
The hydrodynamic fluid coupling prevents both mechanical and electrical load peaks. Its use is recommended in particular if unstable electricity supply conditions prevail on site. Alternatively, the mixer can be operated via a frequency converter or soft-start devices.
We have years of experience and comprehensive expertise when it comes to retrofitting existing mixing plants. The dry powder batch mixer is ideal when retrofitting in tight spaces thanks, to its compact design. As an added benefit, the use of a high-performance dry powder batch mixer can significantly increase the throughput rate of the plant. Installing a mixer with a higher performance and bigger capacity as well as adjusting the weighing system,r dosing and control system can make the plant substantially more competitive.
The mixing tools, based on our spiral-blade mixing mechanism, are adapted to the material density, the abrasiveness of the batch ingredients and the need for residue-free emptying. All versions are attached exclusively with screws. All blades are adjustable.
The mixer can be equipped with agitators along the longitudinal side of the trough for the purpose of disintegration undesired agglomerations. They are very efficient due to the high filling level of the mixer, as they are in constant contact with the circulating mixture.
|Type||Effective volume||Throughput rate||Drive||Processed particle size|
|90-second cycle time||150-second cycle time||from||to|
DMX 1200 MG
|1.050 l||42 m³/h||25m³/h||1 x 15 kW||1 x 37 kW||0 mm - 8 mm|
DMX 1700 MG
|1.500 l||60 m³/h||36 m³/h||1 x 22 kW||1 x 55 kW||0 mm - 12 mm|
DMX 2200 MG
|2.000||80 m³/h||48 m³/h||1 x 22 kW||1 x 55 kW||0 mm - 12 mm|
DMX 2600 MG
|2.300 l||92 m³/h||55 m³/h||1 x 30 kW||2 x 37 kW||0 mm - 12 mm|
DMX 3600 MG
|3.200 l||128 m³/h||77 m³/h||1 x 37 kW||2 x 65 kW||0 mm - 16 mm|
DMX 4900 MG
|4.400 l||176m³/h||106 m³/h||1 x 65 kW||2 x 75 kW||0 mm - 16 mm|
DMX 5500 MG
|4.950 l||198 m³/h||119 m³/h||1 x 75 kW||2 x 80 kW||0 mm - 16 mm|
DMX 6500 MG
|5.900 l||236 m³/h||142 m³/h||2 x 37 kW||2 x 90 kW||0 mm - 16 mm|
|DMX 7300/ 1)
DMX 7300 MG 1)
|6.600 l1||264 m³/h||158 m³/h||2 x 45 kW||4 x75 kW||0 mm - 16 mm|
|DMX 1200||2.500 mm 1)||1.330mm||2.060 mm||1.400 mm||1.130 mm||5.000 kg|
|DMX 1700||3.720 mm||1.300 mm||2.470 mm||1.800mm||1.420 mm||6.800 kg|
|DMX 2200||3.720 mm||1.300 mm||2.470 mm||1.830 mm||1.420 mm||7.500 kg|
|DMX 2600||4.010 mm||1.565 mm||2.470 mm||1.830 mm||1.420 mm||8.600 kg|
|DMX 3600||4.070 mm||1.530 mm||3.000 mm||1.990 mm||1.580mm||11.700 kg|
|DMX 4900||4.900 mm||2.290 mm||3.000 mm||2.120 mm||1.580mm||15.000 kg|
|DMX 5500||4.900 mm||2.290 mm||3.000 mm||2.150 mm||1.850 mm||15.500 kg|
|DMX 6500||4.600 mm||2.310 mm||3.340 mm||2.200 mm||1.850 mm||18.000 kg|
|DMX 7300 2)||4.850 mm||2.310 mm||3.340 mm||2.280 mm||1.850 mm||18.500 kg|
|DMX 1200 MG||2.670 mm 3)||1.330 mm||1.550 mm||1.470 mm||1.000 mm||1.200 mm||3.500 kg|
|DMX 1700 MG||3.000 mm||1.330 mm||2.040 mm||1.855 mm||1.200 mm||1.400 mm||5.600 kg|
|DMX 2200 MG||3.000 mm||1.330 mm||2.040 mm||1.900 mm||1.200 mm||1.400 mm||5.750 kg|
|DMX 2600 MG||3.250 mm||1.565 mm||2.040 mm||1.940 mm||1.200 mm||1.400 mm||6.200 kg|
|DMX 3600 MG||3.260 mm||1.530 mm||2.470 mm||2.040 mm||1.400 mm||1.640 mm||8.800 kg|
|DMX 4900 MG||4.180 mm||2.290 mm||2.470 mm||2.080 mm||1.400 mm||1.640 mm||11.400 kg|
|DMX 5500 MG||4.180 mm||2.290 mm||2.470 mm||2.110 mm||1.400 mm||1.640 mm||11.700 kg|
|DMX 6500 MG||4.670 mm||2.310 mm||2.855 mm||2.400 mm||1.650 mm||1.890 mm||15.700 kg|
|DMX 7300 MG||4.670 mm||2.310 mm||2.855 mm||2.400 mm||1.650 mm||1.890 mm||16.000 kg|