Description

RW 28 digital

Powerful, mechanically controlled laboratory stirrer designed for highly viscous applications for quantities up to 80 l (H2O). It is suitable for intensive mixing for use in laboratories and pilot plants. The stirrer comes equipped with a protection for overheating of the motor by means of self-locking temperature limiter. Additionally, to secure bowls, a stirring shaft protection and clamping fixture are optionally available.
  • Digital speed display
  • Infinitely adjustable speed from 60 to 1400 rpm in two speed ranges
  • Push-through agitator shafts
  • Overload protection
  • Error code display
  • Robust, ergonomic design
  • Quiet operation
  • With constant power-drive


Scope of delivery
  • RW 28 digital
  • Chuck key

Technical Data

Stirring quantity max. per stirring position (H2O) 80 l
Motor rating input 220 W
Motor rating output 94 W
Speed display LED
Speed range 60 - 1400 rpm
Viscosity max. 50000 mPas
Output max. at stirring shaft 90 W
Permissible ON time 100 %
Torque max. at stirring shaft 900 Ncm
Torque max. at stirring shaft at 60 1/min (overload) 1144 Ncm
Torque max. at stirring shaft at 100 1/min 900 Ncm
Torque max. at stirring shaft at 1.000 1/min 86 Ncm
Torque I max. 900 Ncm
Torque II max. 300 Ncm
Speed range I (50 Hz) 60 - 400 rpm
Speed range II (50 Hz) 240 - 1400 rpm
Speed range I (60 Hz) 72 - 480 rpm
Speed range II (60 Hz) 288 - 1680 rpm
Speed adjustment stepless
Setting accuracy speed ±1 rpm
Deviation of speed measurement ±10 rpm
Stirring element fastening chuck
Chuck range diameter 1 - 10 mm
Hollow shaft, inner diameter 10.5 mm
Hollow shaft (push-through - when stopped) yes
Fastening on stand extension arm
Extension arm diameter 16 mm
Extension arm length 145 mm
Speed control mechanical
Nominal torque 9 Nm
Housing material alu-cast coating / thermoplastic polymer
Noise without element 62.5 dB(A)
Dimensions (W x H x D) 123 x 364 x 252 mm
Weight 7.5 kg
Permissible ambient temperature 5 - 40 °C
Permissible relative humidity 80 %
Protection class according to DIN EN 60529 IP 40
Voltage 115 V
Frequency 50/60 Hz
Power input 200 W