Description

RW 28 digital
Overhead Stirrers

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

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