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